United States
             Environmental Protection
             Agency
              Office of Air
              and Waste Management
              Washington, DC 20460
EPA-400/9-78-006
March 1978
             Air
&EPA
Mobile Source
Emission
Factors

For Low-altrtude
Areas Only
Final
Document

-------
EFA-400/9-78-006
               HCBILE SOOBCE JB^ISIC^


               (for Low-Altitude Areas Cnly)
                       Final Document

                         March 1S7fi
              Environmental Irot^ction Agency
                Cffice of Transportation and
                      Land Dse Iclicy
                     401 H Street, S.,
                  Washington, E.C.  20460

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***PA3m OFE: FO? ALI PEGIONS EXCEPT CALIFORNIA  6  HIGH-ALTITUDE***
   Introduction

      A.  Data Sources, ......* **...................... 1
      B.  Purpo se ...... ....................... .......... .....3
      C.  Principal Changes.. ............... ............... 3
      D.  Organ iza t ion. ...*...............* ................ 5
      E.  "elation tc Vehicle  Inspection  &  Maintenance,.... 6
      F.  ^eactive vs. Non-reactive  Hydrocarbon  Emissions. .7
   Chapter   I.  Light-duty,, Gasoline-powered  Vehicles  (IDV)
                 (Automobiles)

      A.  Introduction..................... ............ ....9
      B.  Composite Exhaust  Emission  Equation .............. 11
      C.  Pollutant Emission Factors  for  LDV's:
              Assumption? and  l^thedologies. ............... 12
      D,  Weighting Factoi  ror  Fraction of  Annual  Travel
              by Model Year........ ............... ......... 13
      E.  Speed-memperat,ure-Hot/Cold  Correction  Factor..... 13
      F.  Air-Ccndi tioninq  Correction Factor ............... 18
      G.  Vehicle leading Correction  Factor ...... ....... .,.19
      H.  ""railer Tewing Correction Factor. ........ ........ 20
      I.  Humidity Correclion  Factor. ............... ....... 2*1
      J.  Tdle Emission factors  for IDV's .................. ?1
      K.  Crankcase and Evaporative HC Emission  Factors
              tcr LDV's .............................. ...... 22
   Chapter  II.  Gasoline-powered,  liqht-duty  Trucks  (IDT)

      A.  Introduction. ...... ....... ..., ..... ....... ....... 24
      B,  Composite Exhaust  Emission  Equat ion. ............. 25
      C.  Pollutant Emission Factors  fcr IDT s. ............ 26
      D.  Weighting Factors  for  LDT's. ............... ..... .26
      E.  Speed -"e in pfe rat ure- Hot /Cold  Correction  Factor ..... 2"7
      F.  Air-Ccndi tioninq Corr9cti.cn Factor., ............. 28
      G.  Vehicle Loading Correction  Factor .......... ...... 28
      H.  Humidity Correction  Factor ........... . ..... ......28
      I.  Tele Emission Bates  for  LET* s.. .................. 28
      J.  Crankcase and Evaporative HC  Emission  Factors
             for I DT ' s, .*.,........ ...... . . ...... . ......... 29
                                -l-

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Chapter Til.  Eeavy-duty, Gasolir.e-powered Vehicles  (HDG)

   A.  Introduction	, ...,..,.30
   B.  Composite Exhaust Emission Equation......	33
   C.  Pollutant Emission Factors for HDG............... 34
   D.  Travel Weighting factor fcr HDG	34
   E.  Correction Factors fcr HDG	..........34
   F.  Truck Characteristic Factor for HDG.............. 35
   G.  Idle Emission Factors for HDG................'... 36
   H.  Crankcase  and Evaporative BC Emission  Factors
          for HDG..,,..	 36
Chapter  IV.  Heavy-duty, Diesel-powered Vehicles  (HDD)

   A.  Introduction	...	B"7
   B.  Pollutant Emission Factors for HDD	 3"*
   C.  Weighting Factor for HDD	...38
   D.  Speed Correction Factor fcr HDD.................. 38
   E.  Truck Characteristic Factor for HDD	38
   F.  Idle Emission Factors for HDD	39
Chapter   V.  Motorcycles  (MC)

   A.  Introduction,	..............40
   B.  Composite Exhaust Emission Equation...,	41
   C.  Pollutant Emission Factors for Motorcycles.	.42
   D.  Travel Weighting Factor	 ..42
   E.  Temperatuie-Speed-Hot/Cold Correction Factor ..... 42
   F.  Idle Emission Factors fcr Motorcycles.	....43
   G.  Evaporative Emission Factors..................... 43
                 ***PABT TWO: CAIIFCPNTA***

       Mobile Source Emission Factors for Califcrria
          ***PABT THREE: HIGH-ALTITOCE BEGIONS***

      Mobile Source Emission Factors for High-Altitude
                            -11-

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A.  Selected Speed Correcticn Factors
B.  Coefficients for the Normalized Equations fcr
         ?ped Correction Values
C.  Sample Calculation of Motor Vehicle Emissions
         Osing Mobile Source Emission Factors, ....... .,* C-1'

D.  Vehicle Imission Standards... ....................... D-1

E.  Derivation of Emission Factors ....... . .......... ...E-11

F,  Average Highway Vehicle Emission Factors ..... ...F-'1

G.  Methodology for Calculating Cumulative Mileage* ... G-"<
                           -iii-

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     ""his document officially revises previous mcfcile source



emission factors which were presented in Supplement flc. 5 to



AP-42,    Conpilation    of     Sir    Pollutant    Emission



Factors (Deceirber, ^975),  In mid-19"^  this document will be



published as a Supplement to AF-42, at which time additional



explanatory  material, revised  typeset, renumbered  tables,



and other format changes will be made.



     This  document  does  net  revise  all  information  in



Supplement Nc.  5.  In particular,  updated factors  are not



included  for  light-duty   diesel  automobiles,  light-duty



diesel trucks,  cff-road sources,  or aircraft;  ncr is  any



information included on particulates.



     AP-U2 will be revised  periodically via new supplements



if measured  emission factor  values, as  determined through



in-use   vehicle  testing   programs    (assembly  line   and



surveillance testing) ,  and projected  emission factors,  as



estimated  from  testing  of  prototype  vehicles  and  from



changes to  statutory motor vehicle emission  standards vary



from the estimates contained in this document.
A-   PSJta  Sources.  To  answer  the  question of  how  well



vehicles  perform in  actual  use,  EPA has  administered  a



series  of  exhaust emission  surveillance  programs.   Test



fleets  of  consumer-owned  vehicles  within  various  major



cities  are  selected  by model  year,  make,  engine  size,




transmission, and  carburetor in  such proportion  as to  be



representative of both  the normal production of  each model



year  and  the contribution  of  that  model year  to  total

-------
vehicle miles traveled.   In the case of heavy-duty vehicles,
fuel type  and gross vehicle weight  were also key  items in
the stratification scheme.
     The data  collected in these  programs are  analyzed to
provide  mean  emissions  by   model-year  vehicle  in  each
calendar year, change in emissions  with the accumulation of
mileage, change in  emissions with the accumulation  of age,
percentage of vehicles complying  with standards, and effect
on  emissions of  vehicle  parameters (enqine  displacement,
vehicle weight, etc.)-  These  surveillance data, along with
prototype vehicle  test data, assembly  line test  data, and
technical  judgment, form  the basis  for  the existing  and
projected mobile  source emission factors presented  in this
document.
     The  most recently  published results  of the  emission
factor   program  are   available  in   a  summary   report,
'Automobile Exhaust Emission Surveillance Analysis of the FY
*<9<74  Program1, EPA-460/3-76-(n 9,  Environmental  Protection
Agency, OMSAFC/ECTD,  Ann Arbor, Michigan  48105.   Both the
EPA  emission  factor  surveillarce   program  and  the  EPA
regulatory program  depend on  a valid  test procedure  over
which representative  urban emissions  can be  measured.  At
the  present time,  EPA has  two test  procedures:  one  for
light-duty  vehicles  (LDVs)--including  cars, light  trucks,
and  motorcyclesand one  for  heavy-duty vehicles   (HDVs) .
These procedures are discussed in subsequent chapters.
     For localized pollutants such as CO, the ability of the
test procedure  to predict changes  in emissions  depends on
the  similarity   of  the  localized  driving   pattern  and
                            -2-

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associated  operating  conditions  to   those  in  the  test

procedure.   The EPA  therefore has  developed  a series  of

correction  factors to  expand  upon the  LDV  and HDV  test

procedures and tc  predict emissions from a  large number of

user-specific  scenarios.  Data  required  to develop  these

correction  factors  have  been  generated  using  carefully

designed  statistical  studies   which  test  consumer-owned

vehicles.



B- uP.se.  This current revision to previous mchile source

emission factors is necessary for several reasons:
   1.  '"hese numbers reflect test data  from a much larger
      sample of in-use vehicles in all vehicle categories
      than was available previously,
   2.  New   data    on   catalyst-equipped    (pest-1 9
      automobiles  are available,  requiring  significant
      revision of previously projected emission factors.

   3.  Additional   correction    factors   and    revised
      correction factors for a  wider range of conditions
      are now available.

   4.  EPA has  promulgated new  standards for  light-duty
      trucks,  heavy-duty   vehicles,  motorcycles,   and
      light-duty vehicle and light-duty truck evaporative
      emissions.

   5.  Vehicle  emission  standards  for  several  vehicle
      categories have been  revised by the Clean  Air Act
      Amendments of *91~! (Public law 95-95).
                            -3-

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c-
                         Both the format and   the content of
this  document  differ  from AP-42,   Supplement  No.   5,   in

several ways:

   1 .  Both  actual  and projected  emission   factors   are
      presented in one  table for all calendar  years for
      each pollutant.    Previously,  this  information was
      presented  in  separate tables  for  each  calendar
      year.  mhe revised tables should be easier to use-
      In  addition   to  tabled
      equations used to generate
      to  increase the  ease of
      inventory process.
                                  emission  values,   the
                                  the tables are included
                                 automating the  emission
      All vehicles are no longer assumed to travel 10,000
      miles  per  year.   Instead,  the  national  average
      mileage accumulation  rates are used,  resulting in
      vehicle miles  traveled (VMT)   greater than  10,000
      miles per  year for  newer vehicles  and decreasing
      mileage accumulation as vehicles age.
      Deterioration of  exhaust emissions
      continue  beyond   the  first  ten
      vehicle's operating life.
                                           is assumed  to
                                          years   of  the
   5.  The emission standards for  each model year vehicle
      and the  derivation of  appropriate emission  rates
      are given in appendices.
   6. Emission
      altitude
      this document,.
               factors specific  to California  and high-
               areas  are contained in separate  parts of
      "he previous  eguation for  computing a  light-duty
      vehicle composite exhaust emission factor (E)  given
      by:
                        E = SUM (CMVZ?)
      where  the  notation SOM(..)   represents  summation
      over model  year, has  remained basically  the same
      (as defined  in AP-42, Supplement  Fo.  5)  with the
      addition of  several  (optional)   correction factors
      and  a  single correction  factor  relating  speed,
      ambient   temperature,    and   hot/cold    vehicle
                            -U-

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    operation.,  The revised equation is given  by


                     E = SU^ (CHFALUP)
    where:
       C = the 1975 Federal Test Procedure mean  emission factor
       M = fraction of total mileage
       ? = temperature, speed, hot/cold correction  factor
       A = air-conditioning correction factor
       I = vehicle load correction factor
       0 = trailer towing correction factor
       H - humidity correction factor

    The revised equation is described fully in Chapter  I.

 8.  ^he gereral  equation format  also has  changed for
    each of the other  motor vehicle categories.  These
    revised equations are discussed in each chapter.

 9.  A  single  correction factor   (F)  relates   ambient
    temperature,  vehicle   speed,  and   the  hot/cold
    operating node mix fcr  light-duty vehicles,  light-
    duty trucks, and motorcycles,

10.  Correction factors are now available for a wider range
    of speed and temperature conditions.

11.  Idle  emission   rates  are  given  for   all   vehicle
    categories.

12,  The  medal  emission  model   (which  is  discussed  in
    Supplement No, 5)  is net treated in this document,  but
    is treated in other EFA reports. (1)
                         _            Mcxlal Analysis
    United 3tat.es Enva. conraental  Protection Agency, Office
    of  Motile Source  Air Pollution  Control,  Feport  No.
    EPA-460/3-74-005, ..Canary  '19"?y; and
             s for JHL.L j2Ji.II*I J.MHt^.QMS6. i!H!]iS3 and
              Volume 9:   Evaluating Indirect Sourcesx  U.S.
    E.P.A. , Office of Air  Quality Planning and  Standards,
    Pepcrt No.  EPA-U50/4-'75-001r January  1975,  An update
    report   on  the   modal   model   is  available    from
    CAB/Of SAPCf  Enviroriuer.tal  Protection   Agency,   2565
    Plymouth ?d., Am, Atbci, Michigan  U8105.

                          -5-

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D    SiaiiSizatrLon..  Chapters  T through  V provide  emission



factors for  each  vehicle category:  light-duty,  gasoline-



powered vehicles (automobiles); light-duty, gasoline-powered



trucks;  heavy-duty, gasoline-powered  vehicles  (trucks  and



buses);  heavy-duty,  diesel-powered  vehicles   (trucks  and



buses)  ; and motorcycles.



     Each chapter provides inforiraticn for  use  in all areas



except California and high-altitude;  those emission factors



are contained in separate parts of this document.



     ""he eguations fcr computing a composite emission factor



and  for   computing  individual   correction  factors   are



presented in each chapter.



     Computation  of all  correction  factors and  composite



emission factors is sufficiently  complex and time-consuming



that a computer program should  te used.  A computer program



for using  these emission factors  can be obtained  from the



Office of Transportation  and land Use Policy,   A-4U5, EPA,



40** W  St., S.W. , Washington,  D.C.  20460.
E  Ilaio IP. VeJii.Lg  Ins^ection^Kaintenance..   If  a  motor



vehicle inspection/maintenance  (I/M) program  is in effect  in



the area for which emissions are being calculated, emissions



reduction credit can be taken.



     A methodology for determining   I/M credit was contained



in the  proposed revision  cf  Appendix N  to  40 Cf?   Fart  51



(see 42  Federal. ec[ister  27^^,  Hay 2, "97^).    Appendix N



gives credits  for all  gasoline-fueled sources   (light-duty



                            -6-

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vehicles,  light-duty   trucks,  heavy-duty   vehicles,  and



motorcycles).  A  final  revision  tc  Appendix  N  will  be



published in early 19"'8,



     Emission  reduction  credit  attributable   tc  an  I/M



program  will  vary according  tc  the  type of  program  in



effect, depending on: the  stringency factor for determining



the emission level  for passing or failing  tested vehicles;



the calendar year of interest and calendar year when I/M was



first implemented;  the presence of  an adeguate  program of



mechanic   training;  subseguent   years   of  I/M   program



operation; and freguency of inspections.



     The computer  program available  from EPA  includes the



capability tc apply I/M credits tc emissions estiorates.
             vg? Non-reactive Hydrocarbon Emissions^



 Available scientific evidence indicates  that methane and a




few other  ncn-reactive organic compounds do  not contribute



to violations of ambient  oxidant standards.  EFA's Volatile



Organic Compound  policy, published in the  federal lecjister



on  July 8,  ^977,  allows a  limited  number of  compounds,



including methane, ethane, Freon 1^?, and methyl chloroform,



to  be excluded  from  control  actions.  States  hav  been



advised that  they should exclude  these rorapounffs  from the



baseline  emission  inventories  that ar<=:  to  hp  used  for



control strategy development for photochemical oxirlants.



 Although motor vehicles are regulated directly by the Clean




Air  Act on  a total   hydrocarbon  basis (rather  than on  a



"reactive"  hydrocarbon  basis),  it   is  appropriate  when

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estimating  ambient oxidant  levels to  consider only  those

motor vehicle emissions  which will react to  force oxidants.

However, consideration  must be qivers  to the format  of any

associated  stationary  source emission  inventory  so  that

mobile source and stationary source emission inventories are

consistent.

 Prior to the introduction cf catalyst technology, virtually

all (95% or greater)  mobile source emissions were considered

reactive.  With present and  future catalyst technology, the

methane  (i.e.,  non-reactive)  fraction of  total hydrocarbon

emissions is  increasing significantly.  The  best estimates

of  the  methane  percentages  applicable  to  each  vehicle

category are as follows:
    LDV Exhaust, pre-1975                          5X
    LDV Exhaust, post-''974                        *5X
    LDV Exhaust, Diesel                            2%

    LDT Exhaust, pre-1975                          5*
    0-6K LDT Exhaust, Post-^^U                   -5X
    6-8.5K LET Exhaust, 1975--1978                  5*
    6-8.5K LET Exhaust, post-1978                 15%

    Gasoline HDV Exhaust, pre-1983                 5X
    Gasoline HDV Exhaust, post-1982               ^5X

    Diesel HEV Exhaust, all years                  2%

    Evaporative Emissions, all y=ars and sources   OX
    Crankcase Emissions                            OX

    Motorcycle Emissions - '2 stroke                ""
    Motorcycle Emissions - U stroke                5X

    Gas Turbine fcniissions                          5X
 While the ccmputer  program available from EPA   permits  the

calculation  of  either  total  or   ron-methane   hydrocarbon

emissions, all  EC. emission  factor? are  presented  in   this

document as total hydrocarbon.,,

                            -8-

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                         Chapter  I





                    LIGHT DUTY VIHIC1ES





A  lroducJLion._  Because  cf their widespread  use, light-



duty  vehicles (automobiles)  are  responsible  fcr a  large



share of air pollutant emissions in many areas cf the United



States.  Substantial  research effort  has been  expended to



accurately  characterize  emissions   from  these  vehicles.



EPA's Emission Factor Program  (EIP)  was instituted a number



of years ago in order to  estimate emission levels of in-use



vehicles fcr area-wide urban scenarios.



     In  addition   to  the   methodologies  presented   for



calculating  CO, HC,  and NCx  exhaust  emissions, data  are



given later in  this chapter for emissions in  the idle  mode



and for crankcase and evaporative hydrocarbon emissions.



     The   method  for   determining  composite   automobile



emission factors, based on the Federal Test Procedure (FTP),



is a  modification of  the procedure  that was  discussed in



earlier editions of AP-42.   Emissions testing of light-duty



vehicles currently is performed according to the ^9^5 FmP as



stipulated  in  the  Federal 5eg.ister   (Vol  ""S"7,  No.   2*1",



November 15, 1972).   The FTP conditions under  which light-



duty vehicles were tested are as fellows:





     1. Ambient temperature = 75F average  (68<>F-eeF)



     2. Absolute humidity = "?5 grains



     3. Average speed = 19.6 mph, ""SK idle operation



     ?4. Average cold operation = 2^%



     5, Average hot start operation =





                            -9-

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Chapter I                                light-Duty Vehicles

     6. Average stabilized operation = 52%

     ~r. Air-conditioning not in use

     8. Car contains driver only; no passengers, luggage, etc.

     9. Car is net pulling a trailer

    "0. Vehicles are not in an Inspection/Maintenance program

    11. Vehicles receive typical in-use maintenance

     The  FTF   for  light-duty  vehicles  can   te  briefly

described by the following:


     1. Determine weight of vehicle.

     2. Determine road-load  (assuming level road, nc curves,
        no wind) - function of weight and frontal area.

     3. Preccndition  vehicle  (i.e.,   vehicle  is  briefly
        driven).

     U. "Soak" vehicle for 12 hours at 680F-86F.

     5. Push vehicle onto a dynamometer.

     6. Start test.

     7. First 505  seconds collected in  bag t"1.   Mileage =
        3.59 miles.  Average speed = 25.6 mph.

     8. Next 870 seconds  collected in bag #2 (Engine  is  not
        turned off).  Mileage = 3. 91 miles.  Average speed =
        16 mph.

     9. Motor is turned off.

    "0. Car is "soaked" 10 minutes.

    I1. Car is restarted and the first 505 seconds are rerun
        and collected in bag #3,

    *2. The grams of pollutant are determined fcr each bag.

    *3. NOx is corrected for humidity.

    "U. The FTP gm/mile value is computed.
                             -10-

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Chapter I                                light-Euty Vehicles

B.  As  mentioned in  the Introduction,  the calculation  of

composite exhaust  emission factors  using the  complete FmP

method is given by:



     Enpstwx = SOH( Cipn*Min*Ripstwx*Aip*Lp*Oipw*Hip )



where all lower case letters are subscripts and:

        SDM( )  = summation over  model year   (i) , from  the
                  calendar year  for which  emission factors
                  are being calculated  (i=n) to the calendar
                  year 19 years previous  (i = n-19).

        Enpstwx = Composite  emission  factor in  gm/mi  for
                  calendar  year  n,  pollutant  p,  average
                  speed s,  ambient temperature  t, fraction
                  cold operation  w, and fraction  hot start
                  operation x.

        Cipn    = The FTP (I9n5 Federal ^est Procedure) mean
                  emission  factor for  the  ith model  year
                  light-duty vehicles  during calendar  year
                  n, and for pollutant p.

        Win     = The fraction  of annual travel by  the ith
                  model year IDVs during calendar year n.

        Pipstwx = The  temperature,   speed,  and   hot/cold
                  correction factor  for the ith  model year
                  LDVs  for pollutant  p,  average speed  s,
                  ambient  temperature   t,  fraction   cold
                  operation  w,   and  fraction   hot  start
                  operation x.

        Aip     = The air-conditioning correction factor for
                  the ith model year IDVs, for pollutant p.

        Ip      = The  vehicle  load correction  factor  for
                  pollutant p.

        Dipw    = The trailer  tewing correction  factor for
                  the ith model year  IDVs, for pollutant p,
                  and for fraction of cold operation x.

        Hip     = The humidity correction factor for the ith
                  model year IDVs, fcr pollutant p.


     Computation of  all factors for the  complete composite

exhaust emission factor equation  should be computerized for

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Chapter I                                light-Duty Vehicles

all  practical purposes.   A computer  program  is  available

from EPA's Office of Transportation and land Use Policy,

M St., S. W. , Washington, D. C.  20H60.
c  Zli]2i;Q.l JiJ5.issiori factors fc_r light-duty, vehicles,.   The

FTP mean  emission factors are  given in Tables   1-2  through

1-4.   These  emission factors  represent  average  emission

factors for July of the calendar year.

     The two emission values needed to estimate the emission

rates--the zero mileage emission  rate and the deterioration

rate   (per  10,000  miles)--are  listed  in  Table  T-1   for

different emission control technology categories.

     Each  LCV emission   rate is  calculated  from a   linear

mathematical function:

                    Cipn  = Aip + Eip*Yin

where all lower case letters are subscripts and:

        Cipn    = the FTP  (1975 Federal mest Procedure)  mean
                  emission factor,  in gin/mi, for  ith model
                  year  LDVs in  calendar  year   r, and   for
                  pollutant p.

        Aip     = the zero mileage exhaust  emission  rate of
                  pollutant p, in gm/mi,  for ith  ircdel  year
                  LDVs.

        Bip     = the emission deterioration rate  per 10,000
                  miles,  of" pollutant pf  for ith  ircdel  year
                  LDVs.

        Yin     = the cumulative  mileage of ith   mcdel  year
                  LDVs  in  calendar  year   n,   divided   by
                  10,000.

     Explanations  of   the  appropriate   vehicle  emission

standards and  of the  derivation of  emission rates   can be

found in Appendices D and  Ef respectively.
                             -12-

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Chapter I                                Light-Duty Vehicles



     mable T-5a presents the average cumulative mileages for



LDVs  by age,  on July  1.  The  numbers in  this table  are



derived from the mileages presented  in Table 1-5, using the



methodology presented in Appendix G.
                      Ztor..  * sample calculation  of this



variable  is  presented  in  ""able  1-5.   In  this  sample,



nationwide statistics, averaged ever five years between <19"70



and <'9"6,  are used and the  fraction of in-use  vehicles by



model year (vehicle age)  is weighted  on the basis cf annual



miles driven.  The calculation may be "localized" to reflect



local   (county  or  state)  vehicle  age  mix,  annual  miles



driven,  or both.   Otherwise, these  national  data may  be



used.  Table  1-5 is  assumed applicable  to projections  as



well as existing situations.
                                  Correction  Factor     ""he
emission factors found in Tables 1-2 through I-U may be used



directly  in calculating  emissions  for scenarios  watching



those in  the Federal  Test Procedure   (FTP).  As  described



earlier, the FTP describes an average ambient temperature of



"'BOF,  a particular  mix of  cold, hot  stabilized, and  hot



transient operation, and specific  average speeds associated



with  each of  these modes.   If  emission calculations  are



desired  for scenarios  matching  these  FTP conditions,  no



correction would be  necessary, ie., a value of  1.0 can be



used for any correction factor  if better information is not

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Chapter I                                light-Duty Vehicles



available.



     For  scenarios  which  vary from  the  FTP  conditions,



correction factors are desirable.  The correction factor for



ambient temperature,  average speed, and percentage  hot and



cold operation represents  a major change from  the previous



treatment in Supplement 5 to  AP-42.  The interdependence of



these  variables has  led to  their expression  as a  single



correction  factor,  rather  than   as  separate  correction



factors.  The new  factor is identified by  the term Pipstwx



in the composite exhaust emission eguation.



     The  FTF  measures  emissions during  three  phases  of



operation.   A cold  transient  phase  is representative  of



vehicle  start-up   after  a   long  engine-off   period;  a



stabilized  phase  is  representative  of  warmed-up  engine



operation;  and hot-start  vehicle operation  occurs in  the



first 505 seconds of vehicle start-up  after a shcrt engine-



off period.  The  cold, hot, and stabilized  phases are 21%,



2""*, and 52%, respectively, of the total FTP mileage.



     For non-catalyst  vehicles, the cold  vehicle operation



phase  is  defined  as  the first  505  seconds  cf  vehicle



operation  following  a  4-hcur   engine  off  period.   For



catalyst vehicles the cold operation phase is defined as the



first 505  seconds of vehicle  operation following  a ^-hour



engine-off period.   If the engine-off period   ('soak time1)



is less than 4 hours for  non-catalyst vehicles or less than



1  hour for  catalyst  vehicles,  the restarted  vehicle  is



considered to  be in  a hct  operating mode.   Mere specific



information  on   the  relationship  between   cold  vehicle



operation,   'soak  time1,  and ambient  temperature  may  be

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Chapter I                           ,     light-Duty Vehicles
obtained from  EPA's Office of  Transportation and  land Use
Policy.
     In  those  situations  where the  percentage  of  ccld,
stable,  and hot  vehicle  operation do  not  match the  F""P
percentages  (i.e., 2^%, 52%, and  2"^}, emission factors may
be corrected to  account for the actual  percentage of total
mileage in  each operating node.   Knowledge of  the percent
VMT  in  each  mcde  is  especially  useful  for  microscale
analyses in which these percentages  can vary greatly within
any urban area  as well as diurnally.   One methodology used
to determine  the appropriate cold  mode percentages  may be
found in  the EPA report:   Determination of  Percentages of
Vehicles O^eratija in the Cold Start Modex EPA-U50/3-~~-023,
August " 9""?, Office  of Air Quality Planning  and Standards,
U.S.  Environmental  Protection  Agency,  research  mriangle
Park, North Carolina 27711.
     During  the   FTP  emissions  are  collected   in  tags
according  tc  these  three  phases  of  operation.   Bag  1
represents the emissions sampled under cold start conditions
with an average speed of 26  mph; Sag 2 represents emissions
sampled under stabilized conditions with an average speed of
16 mph;  and Bag  3 represents  emissions sampled  under hot
start conditions with an average spsed of 26 mph.
     In  those  situations where  the  bag-specific  average
speeds do  net match those  of the  FTP, it is  necessary to
correct the average speed.  The speed correction factors are
incorporated ictc  the correction  factors for  temperature-
hot /cold  weighting  rather  than being  given  as  separate
factors.  The reason  for this incorporation stems  from the
                            -15-

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Chapter I                                light-Duty Vehicles

assumption that, the  effect cf  speed on  emissions is  bag-

specific.  The  resulting formulas for  HC, CO, ar.d  NQx are

presented in ^able 1-6.

     Although the speed correction  factors are incorporated

into the Pipstwx formulas, selected speed correction factors

are given  in Appendix A:  (1) for g.eneral  information, and

(2)  to permit comparison with speed correction factors which

can.be generated for any speed from the normalized equations

given in Appendix B.

     Data used to  develop the Bipstwx values  were provided

by five sources:

     (i)  the study llbient Temperature  and Vehicle Emissions
       (EPA  U60/3-7U-028,  "October  1 9^U) "in   which  FTP
       emissions  tests were  performed  on '196"7-1S75  model
       year non-California  cars at ambient  temperatures of
       200F to
    (2)  data  from  the  Environmental  Protection  Service,
       Ottawa, Canada,  on FTP  tests of  19"'5 cars  meeting
       either the  federal standards  or the  mere stringent
       California emission standards;

    (3)  EFA's annual  Emission Factor  Program, which  tests 
       in-use vehicles in seven cities across the country;
        the 1970 Vehicle Operations Survey; and,

    (5) the 197U GM Chase Car Survey.

Applicability of correction factors..  The general correction

factors are  applicable to  ambient temperatures  cf 0F  to

110F,  speeds of  5  to 60  cph,  ?-nd  all com): Anatxens  of.

hot/cold driving.  Also, the factors  should only te applied

to transient  driving situations.  To predict  the emissions

of a  steady-state  (i.e.,  constant speed)  driving sequence

such as constant 20 mph  operation, the modal analysis model

should be applied  to the specific speed  of interest end/or

EPA  surveillance   reports  should   be  referenced.    The

                            -16-

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Chapter I                                light-Duty Vehicles



difference between emissions measured  over steady state and



transient  cycles  is  considerable at  low  average  speeds



(greater  than 20%)   and  becomes  negligible at  speeds  of



approximately 45 mph.  For further  information en the modal



analysis model, see the footnote on p. 5.



     For  regional   modeling,  urban  and   rural  emission



projections should  be performed separately to  uir.imize the



chance of introducing  major errors which might  result from



incorrectly  applied speed  correction factors.   Obviously,



every vehicle on a road link  will not have the same average



speed; there  will be  a range  of speeds.   If (1)  a speed



correction factor is  applied to model the  average emission



on a road  link, (2)  the correction factor  is linear within



this  range, and  (3) traffic  is symmetrically  distributed



around the average  speed, then the application  cf a single



correction factor is appropriate.  The same situation exists



in modeling  regional emission levels.  However,  the extent



to which this assumption of  symmetry is satisfactory is not



known at  the present  time.  Thus, it  would be  prudent to



apply separate models  to project urban emission  levels and



rural emission levels.
                                               Supplement  5



ambient t empsrature-hot /cold correction factors for pre-''9"T5



and '"^S model  year cars, respectively, were  ccirpared with



the  revised  factors  for  pre-ccntrolled  1968-'1?"'4,  1975



Federal, and ''975 California model year vehicles.  For these



comparisons, average speed was assumed  equal to F"P average



sped conditions*   Comparisons indicate  thdt under  severe

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Chapter I                                Tight-Duty Vehicles

temperature-Khot/%cold conditions.  Supplement 5  correction

factors  for HC  and CO  are substantially  higher than  the

revised factors, and that  under mild conditions, Supplement

5 factors are substantially lower  than the revised numbers.

For NOx  the correction  factors are  on the  same order  of

magnitude.
F-  IDV Correctijcn Factor for Air Conditioning,..

     The  use of  air conditionirg  can  have a  significant

effect on  emissions.  The following correction  factors may

be applied tc all model years:
 I Air Conditioning Correction Factors for All Model Years)
 I                                                         I

 )         HC        |         CO        1        NOx        |

 I        1.13       i        1.18       i       i.ie        i
     In  order  to  apply the  air  conditioning  correction

factors, it is necessary to  knew the percentage cf vehicles

in the population  that are eguipped with  air conditioning.

Data from EPAs  FT 74 Emission Factor  Program irdicate the

following percentage  by model  year.  These  values include

both   factory   installed  and   customer   installed   air

conditioning   systems.   City-specific   values  may   vary

considerably frons these estimates.
                            -18-

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Chapter I                                light-Duty Vehicles
       Percentage of Vehicles with A/C by Model Year  (

           Pre-1966          |            54*          |
           1966-1968         |            66%          f
           ^569-1972         (            "5%          j
In addition,  any specific  application of  air conditioning

correction factors  should consider  the percentage  of time

that the air conditioning is in use.  Adjusted for the local

situation, the following eguation should be employed:

                 A = (u) (v) (cf - 1.0) + 1.0

where :


          A = correction factor adjusted for usage level,

          u = fraction   of  vehicles   equipped  with   air
              conditioning,

          v = fraction of  vehicles which are  ecuipped with
              air  conditioning,  and  which  have  the  A/C
              system in operation, and,

          cf = tabled A/C correction factor.

""his calculation  assumes that  vehicles with  A/C installed
travel   the same  average mileage  per year  as dc  vehicles
without A/C installed.


G   Vehicle Loading  Correction Factor..   The JTE  emission

factors found  in Tables 1-2  through T-U assume  an average

vehicle loading of 300 pounds, which accounts for the weight

of a typical driver, vehicle fuel, and ether liquids.  There

are,  however,  situations  in which  vehicles  have  higher

passenger/luggage loading.

     To apply  the vehicle loading correction  factors rosir',5

in Table  T-S to  a specific situation,  it is  necessary to

have an estimate  of the percentage of  total vehicles which
                            .10.

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Chapter I                                light-Duty Vehicles



are  operating  under  an additional  500  pounds  condition



because they  are heavily occupied  with people  cr baggage.



The actual  correction factor adjusted  for the  usage level



also is given in Table 1-9.



     Although these  factors are specific  to the  500 pound



weight load, interpolation between 300 pounds and 800 pounds



is acceptable.
                     Correction  Factor.,   The FTP  emission



factors   found  in   Tables  T-2   through  1-4   represent



circumstances in which the vehicle  is not towing a trailer,



""his section  discusses the correction factors  fcr vehicles



which are towing trailers.



     A discrete  weight point was  selected for  testing the



influence  of trailer  towing  en  vehicle emissions.    This



point is 1OOC pounds of additional weight.  Extrapolation or



interpolation of  trailer towing  correction factors  is not



appropriate.   Table 1-10  presents the  values fcr  trailer



towing correction for all model  years prior to ^975.   mhese



values result from  the averaging of test  results for model



years 1967 to 197U.



     For ^975 and  later model years, the  correction factor



value must  te determined  by using  the equations  in Table



T-^O.   The distinction  between pre-^975  models and  later



models is due to the assumption  that a large increased load



on  a catalyst  vehicle  will  result in  greater  emissions



luring  hot  operation  than  during  cold  operation.   The



additional lead  is expected  to result  in rich  operation,



                            -20-

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Chapter I                                light-Duty Vehicles



reducing the  oxygen available tc  the catalyst  and thereby



increasing emissions.
              Correction  Factor..  The  NOx tabled  emission



factors are  normalized to 75 grains  of water per  pcund of



dry air.  In order to  correct NCx emissions under different



humidity conditions,  the formula for the  correction factor



is given belcw., and is applicable for all model years:
             Humidity Correction Factor for NOx
                C.F. = 1.0 - .00


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Chapter I                                light-Duty Vehicles
from  the initial  emission  rates  and deterioration  rates
given in Table  1-7,   The emission rates  in grams/minute at
age Y are  given by the tabled values; where  the first term
of any quantity of  the form a + bY is  the initial emission
rate (at age  zero),  and the coefficient of  the second term
is the deterioration,  expressed in units of grams per minute
per *OOOQ miles.
K  rankc^ajj a.nd Evaporative Emission Factors^  In addition
to exhaust emission factors,  the calculation of hydrocarbon
emissions frcm  gasoline vehicles  involves evaporative  and
crankcase  hydrocarbon  emission  factors.   The  two  major
sources of evaporative hydrocarbon emissions frcm light-duty
vehicles  are  the  fuel tank  and  the  carbureter  system.
Diurnal changes  in ambient temperature result  in expansion
of the air-fuel mixture in a partially filled fuel tank.  As
a  result, gasoline  vapor is  expelled  to the  atmosphere.
Punning  losses from  the fuel  tank  occur as  the fuel  is
heated  by the  road surface  during  driving, and  hct-soak
losses  from  the  carburetor   system  occur  after  engine
shutdown at the end of a trip.
     Previous editions of AP-42  contained several equations
and emission factors for computing crankcase and evaporative
hydrocarbon   emissions.    Since    crankcase   hydrocarbon
emissions frcm  post-1963 vehicles are negligible,  only on
emission  factor  and  one equation  are  presented.   ^hese
values are  determined from data  collected in  the emission
factor programs.  Future  rates are based on  the assumption
                            -22-

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Chapter I                                light-Euty Vehicles

that standards currently  in the regulatory process  will be

implemented and  that the vehicles  will meet  the standards

throughout  their useful  life.   Crankcase and  evaporative

emissions arc not assumed to deteriorate as vehicles age.

     Composite evaporative  and crankcase  emissions can  be

determined using:



                     Fn = SOM( Hi*Min )



where all lower case letters are subscripts and:
        Fn  = The   composite  crankcase   and   evaporative
              hydrocarbon emission factor  for calendar year
              n,

        Hi  = The crankcase and  evaporative emission factor
              for the ith mcdel year, and

        Win = The weighted  annual travel  of the  ith model
              year during calendar year n.
     Crankcase and evaporative hydrocarbon emission rates by

model  year  are  summarized  in  Table  1-8.   The  exhaust

emission  factors  in Tables  1-1  and  T-2 do  ret  include

crankcase or evaporative emissions.
                            -23-

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                        Chapter
                                 TT
             GASCLINE-POWEHEE IIGHT-EUTY TPUCKS
A.  Introduction.  This vehicle  category consists of trucks



used chiefly  for personal transportation which  are powered



by   gasoline-fueled,  spark-ignited   internal   combustion



engines.   Twc sub-categories of  light-duty trucks are used:



trucks  having a  gross vehicle  weight  (GVW)   in the  range



0-6000 pounds,  and trucks with  GVW in the  range 6001-8500



pounds.  Trucks in these two  categories are essentially all



two-axle, four tire  trucks.  Trucks and buses  having a GVW



above 8500 pounds are defined as heavy-duty vehicles and are



discussed  in Chapters  III and  TV.   These definitions  of



light-duty trucks  and heavy-duty vehicles are  identical to



those in AF-42, Supplement 5.



     The testing  conditions used for the  light-duty trucks



in  the 0-60CO  pound range  are the  same as  these in  the



Federal  Test Procedure   (TTF)  for  light-duty vehicles,  as



discussed  in Chapter  I.  Until  the 19<79  model year,  the



trucks  in the  600^-8500 pound  range are  to be  certified



under the  less stringent  Heavy-Euty Truck  Procedures.  In



^"^ the testing  conditions for both weight  ranges will be



the same as those currently in effect for light-duty trucks.
                            -24-

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Chapter II                                 Light-duty Trucks

B.   Cjomj3osite  Jxhaiist Ejissioji  Isjuation.^   The  composite

exhaust emission  factor for gasoline-powered LDTs  is given

by:



        Enpstw = SOM( Cipn*Min*Bipstwx*Aip*Lp*Hip )



where all lower case letters are subscripts and:

        SDM( )  = summation over  model year   (i) , from  the
                  calendar year  for which  emission factors
                  are being calculated  (i=n) to the calendar
                  year 19 years previous  (i=n-19).

        Enpstwx = Composite  emission  factor in  gin/mi  for
                  calendar  year  n,  pollutant   p,  average
                  speed s,  ambient temperature   t, fraction
                  cold operation  wf and  fraction  hot start
                  operation x.

        Cipn    = The FTP (19"75 Federal Test Procedure)  mean
                  emission  factor for  the  ith  model   year
                  light-duty trucks during  calendar year n,
                  and for pollutant p.

        Min     = The fraction  cf annual travel  ty  the ith
                  model year LDTs during  calendar year n.

        Pipstwx = The  temperature,   speed,  and   hot/cold
                  correction factor  for  the ith  mcdel  year
                  LDTs  for pollutant  p,  average speed  s,
                  ambient  temperature    t,  fraction    cold
                  operation  w,   and  fraction   hot  start
                  operation x.

        Aip     = The air-ccnditicning correction factor for
                  the ith model year LDTs, for pollutant p.

        Lp      = The  vehicle  load correction   factor  for
                  pollutant p.

        Hip     = The humidity correction factor  for the ith
                  model year LDTs, fcr pollutant  p.
                            -25-

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Chapter II                                 Light-duty Tracks
c  HiIiLtant  emission factors for lightedutjr  i rucks*.  The
zero  mileage emission  rates and  deterioration rates   (per
10,000 miles) used  to generate the tabled  emission factors
are listed separately  in Tables IT-1, II-*1 a,  and II-1b for
the 0-6000 pcund category, the 6001-8500 pound category, and
the  combined category.   Emission factors  for each  weight
category are given in Tables II-2a through II-4af and Tables
II-2b through  II-4b, and  composite emission  factors which
combine the two weight categories of light-duty trucks using
the national sales weighting statistics have been calculated
for  each calendar  year  by model  year  and  are given  by
pollutant in Tables IT-2 through II-U.
 Tables  II-5c  and  II-5d present  the  average  cumulative
mileages for  LDTs by age, on  July 1.  The numbers  in  this
table  are derived  from the  mileages  presented in  Tables
TT-5a and II-5b, using the methodology presented in Appendix
G.
D  Welsh lias lectors fJ. k2!sA  1.  .Sales Weighting Factors
for LDTs..   Table 11-^0  presents th  percentage of   0-8500
pound LDTs  in each of  the weight categories  0-6000  pounds
GVW and 600^-8500 pounds GVH.  These percentages may be  used
to weight the  two sets of emission factors  in Tables II-2a
through  TT-Ub.  This  weighting was  used  to generate  the
emission  factors   in  Tables   TI-2  through   II-U.   The
percentage distribution by sales is based on naticral  data.
-  UrAYJgl Weighting  Factor.  A sample calculation  of  this
variable  is  presented  in Table  IT-5.   In  this  sample,
                            -26-

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Chapter II                                 light-duty "rucks

nationwide statistics are  used, and the fraction  cf in-use

vehicles  by model  year (vehicle  age) is  weighted on  the

basis  of   the  annual  rate   cf  nileage   accrual.   mhe

calculation iray he  "localized" to reflect local   (county or

state)  vehicle age  mix, annual rate of  mileage accrual, or

both.  In situations where local data are not available, the

national data may be used.   Table IT-5 is assumed applicable

to prelections as well as existirg situations.
                                Correction Factor..   limited

data are available for the development of correction factors

for  light-duty trucks  (LOT).   Due  to the  similarity  of

engine  designs  and  emission  control  designs,  LD""s  are

expected  to  behave  similarly to  IDVs  under  ether  than

standard  F^r  conditions.   ""herefcre,  the  discussion  of

Pipstwx in Chapter I is applicable to IDTs as well, with the

following modifications:

   Tables TI-6a  and II-6b  contain the  general formulas
   for  calculating Pipstwx.   The two  tables differ  in
   that LDT^s less  than 6000 Ibs. have  three applicable
   riipstwx equations  while IDT's greater than  6000 Ibs.
   have only two applicable eguaticns.

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Chapter TI                                 light-duty ^rucks



F-  AiE Cond^ticnina Correcjtion  factor^  Correction factors



for air-conditioning, Aip, in  light-duty trucks are assumed



to  be eguivalent  to  the  IDV air-conditioning  correction



factors, as discussed in Chapter I.
G.  Vehicle  loading Correction Factor^   Correction factors



for  additional  load   (passenger  and/or  luggage)  of  500



pounds,  designated  by  the  term Lp,  are  assumed  to  be



eguivalent tc those indicated in Chapter I for IDVs.
H.  Humidity Correction Factor,..  The  user is again reminded



that  this  correction  factor  is   only  relevant  to  TOx



emissions.  The correction factor and methodology discussion



for IDVs in Chapter I is assumed applicable to IBTs.
I.  Td_le Emission Factors for LDTs._  As discussed  in Chapter



I, there  are occasions which  arise in which  the emissions



estimate  must  reflect  the   idle  operating   ircde.    Idle



emission factors are  expressed in terms of  elapsed time of



vehicle operating minutes.




     0*^000 Ifea. l^JS..  Idle emission  rates for  this truck



weight category car. be calculated  from the initial emission



rates and deterioration rates in  Table Il-^a.   The emission



rates, in gm/minute,  are given by the  tabled values; where



the first  term of any  guantity of the form  a  *  bY  is the



initial emission rate (at zero mileage), and the coefficient



                            -28-

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Chapter T~                                  Light-duty Crocks



of the  second term  is the   deter iorat icr. in  gm/finut0 per



year,  Y is the cumulative mileage  divided by 10,000 miles.



     600.1j:Ji5QO Ib..  lJ.ucks._   Similarly,   the emission  rates



for  this  category  can  be   calculated   from  the  initial



emission rates and deterioration  rates  in ^able ZT-^b.
J-   CranJscaje  arid  Jvajsorative  Emission  Fact or s_.   For  a



discussion of this  topic,  refer  to  Section K  in Chapter I.



"'able IT-q identifies crankcase   and evaporative hydrocarbon



emission factors by model  year.
                            _7C_

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                        Chapter III





             5ASQLINE^PO_WERIE 1EAVY-DOT.Y TPOCKS





a  Illlioduction..  This vehicle  category consists  of  trucks



and buses  having gross vehicle  Heights  (GVW) of   over  8500



pounds and  which  are powered  by  gasoline-fueled,   spark-



ignited internal combustion engines.



     EPA  test programs  for  determining in-use  heavy-duty



vehicle   (HDV)  emission  factors use  both  the  heavy-duty



Federal Test Procedure  (FTP) and  an actual urban road test,



the San  Antonio Eoad Poute (SAB?).   The SA?B is   run under



the following conditions:



     1. Ambient temperature = "J5'S



     2. Absolute humidity = ~>5 grains



     3. Average speed = 20  irph



     4. Average stabilized  operation = 100%



     5. Average operating   weight = ''"'K-20K pounds   for  gas,



        UOK-50K pounds for  diesel.



     6. Average  weight/CTD  =  U7-5U  for  gas,  5*7-6"?   for



        diesel.



     "7. All testing performed in one low-altitude city.



     9. Vehicles receive typical in-use maintenance.



     9. No I/M program in effect.



     The  FTP is  run  at a  series  of steady-state  engine



speeds  and loads  with a   ho4-  start and  a hot  stabilized



phase.  Since emissions from these  tests are net equivalent



to   on-the-road   emissions,  regression   eguaticns    were



developed  sc that  on-the-road  emissions   (SAPF)  could  be



predicted.



                            -30-

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Chapter III                            H<=avy-duty Gas '"rucks




     ""he  Sat  Antonio  Foad ^oute   (^AP13)  located  in  San




Antonio, ""exas,  is 7,24  miles Icnq  and includes  freeway,




arterial, and local/collector hiqhway  segments.  A constant




volume sampler is carried en board each of the test vehicles



for collection  cf a  proportional part  of the  exhaust gas




from the  vehicle.  This sample  is later analyzed  to yield



mass emission  rates.  Because  the cAr~  is dii  actual road



route,  the  average  speed   varies  depending  en  traffic




conditions at the time of the test.  ""he average speed tends




to be around 20  mi/hr, with about ?OK of the  time spent at



idle.   The  test  procedure  enissicn  factor  is  composed




entirely   of  warmed-up   vehicle   operation.   Eased   on




preliminary analysis  of vehicle operation data,  almost all



heavy-duty vehicle operation is under warmed-up ccnditicns.




     At  this  time,  it  is  net  known  whether  th  SA?0




accurately represents  average urban  HDV driving  patterns.



Preliminary analysis  of Los  Angeles urban  truck operation



data indicates  an average  speed of  around 26  rcph, 6  mph




higher than the  SAP? average speed.  Data  from ether sites




have not  been analyzed.  mhe  read route does  have similar



characteristics  to  the representative  light-drty  driving



schedule with respect to average road speed and percent time



at idle.  Siiice traffic is likely tc bc the major constraint




within the urban environment, it  is not surprising that the




truck and car schedules are similar.  However, the SAP? (and




the current  IDV FTP)   makes no attempt  to account  for the




time that  trucks spend  idling as  a result  of deliveries,




special operations (buses, garbage  trucks), auxiliary power



equipment, etc.



                            -"31 -

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Chapter III                            Heavy-duty Gas mrucks

     '"hus, it  is possible that the  final HD cycle  that is

developed  it future  rulemaking  will  have a  higher  idle

percentage and a  lower average speed than  the SAP?,  ^ince

the operational data  have not yet teen  completely analyzed

and  trucks  have  not  been   tested  on  transient  cycles

developed  from the  operational data,  the tabled  emission

factor estimates are based on the SAP? driving schedule.

     Data were assembled from twc major sources:


     *. """he emission factors contracts  involving testing of
        35 gasoline and ten  diesel in-use heavy-duty trucks
        by chassis dynamometer versions  of the Federal Test
        Procedure  (FTP) as well as over the San Antonio Poad
        Poute  (SAPB) .

     2. The  emission  factors   (sensitivity  study)  of  "8
        gasoline  and 12  diesel  in-use heavy-duty  trucks.
        These vehicles were also  tested by chassis versions
        of the  FTP and over various  experimental sequences
        (both  steady  state and  transient  cycles).   SA'P
        estimates were obtained by  using linear regressions
        based on data source *.

     Other ir-use  heavy-duty vehicle and engine  data which

are available were not incorporated because they were either

not  sampled   using  current  testing   methodology   (e.g.,

gasoline 9-mcde  concentration data  which are  net directly

convertible  to   mass  emissions)  cr  were   collected  on

potentially non-representative  engines  (e.g.,  engines with

experimental emission contrcl modifications).

     The tabled emission  values are based on  all available

mass emissions data  measured over the F^F  and converted to

SAPP; estimates by using regression equations.
                            -32-

-------
Chapter III                            Heavy-duty Gas Trucks

B.   Composite  Exhaust Emiss_io_n  l5uation._   "he   composite

exhaust emission  factor for gasoline-powered HEVs  is given

by:



            Inpsoq = SUM ( Cipn*Min*Vips*Pipnog )



where all lower case letters are subscripts and:

        SDM( )   = summation over  model year   (i),  frcm  the
                  calendar year  for which  emission factors
                  are being calculated  (i=n) to the calendar
                  year ^9 years previous  (i=n-''9).

        Enpscq  = Composite  emission  factor in  gm/rni  for
                  calendar  year  n,  pollutant   p,  average
                  speed s, truck weight  of and weight/power
                  ratio g.

        Cipn    = The Federal  Test Procedure  mean emission
                  factor for the ith  model year  KEG vehicle
                  in calendar year n, and for pollutant  p.

        Min     = The fraction  of annual travel  by  the ith
                  model year HDG during calendar  year n.

        Vips    = the speed  correction factor  for the  ith
                  model year  HDG vehicles, for   pollutant p
                  and average speed s.

        Pipncg  = the truck characteristic correction factor
                  for the  ith model  year HDG  vehicles for
                  pollutant p, calendar year n, truck weight
                  o, and weight/power ratio g.
                            -33-

-------
Chapter TTT                            Heavy-du+y Gas "rucks



c-   2oliu^a.nt  emission  factors   f_or  HDG^   ""able  ~~~-*



includes   the   zero-mileage   emission   rates   and   the



deterioratior. rates (per 10,000 oriles)  used to generate the



emission factors given in Cables III-'" through ITT-U.



 ""able TTT-5a  presents the average cumulative  nsileages for



HDG trucks by age, on July 1.  The numbers in this table are



derived from  the mileages presented  in '"able  TTT-5, using



the methodology presented in Appendix G.
D.   ZLy.l i^isiliUS  ZSSiJsIi  ^^e  nationwide fraction  of



gasoline-powered, HDV annual  travel by model year  is shown



in ""able  TTI-5.  Localized  data, if  available, should  b



substituted when calculating the variable win for a specific



area under study.
        3  Correction factor for  HEG_.  Tr part  because the



SAP?  may  net  te representative  cf  an  average  national



driving schedule  and in  part because a  need may  exist to



determine emissions over localized  driving conditions which



differ  siqnificantly  from  the  average  national  driving



schedules,  a  correction  factor  has  been  developed  for



average speed.  The speed correction  factors can te applied



between 5 and 55 mph.



     As in previous editions of  AP-U7, the speed correction



factors for hydrocarbons and carton monoxide are ccnputed by



                Vips = exp(A * E*S + c*S*c)



     where e is the base  of the natural logarithms  (?.^*Q),



                            -34-

-------
Chapter in                            Heavy-duty Gas "rucks



S  is the  speed, and  A, B,  and C  are coefficients  whoso



values for various model years are given in Table I'T-6.



     ~"he speed correction factor for KOx is given ty:



                       Vips = A + E*?



     with A and E values also given in ""able III-6.
F.   .Iruck   Characteristic  Correction   Factor  _for   j-DG.



Adjustment factors  also have teen developed  for heavy-du*y



vehicle   weight   and   the   weight/power   ratic.     ("he



surveillance data samples used  to generate these correction



factors atteirpt  to represent  the national  distribution of



vehicles and therefore represent the rational average weight



and  weight/power values.   However,  the  sample sizes  are



small.  National  averages are difficult to  deteririre  -inc^



they  involve   a  knowledge   of  actual   truck   operating



weight--not  registered  weight--and   engine  displacement.



Although the  Department of  ""ranspcrtaticn perfcrtrs  weight



surveys, cubic  inch displacement  (CTD) information  has not



been recorded.



     ^ince  the  basic heavy-duty  vehicle  emission  factor



assumes that  the trucks are  at half load,  this correction



factor has been designed to adjust for empty trucks cr fully



loaded trucks.  The weight  and weight/CTE correction factor



was developed for weights ranging  from ^OOO to n9000 pounds



and  a CID  of  330 to  390  for gasoline-powered   vehicles.



Correction factors  for vehicles teyond these  ranges should



not te  computed unless an engineering  evaluation  indicates

-------
Chapter ITT                            Heavy-duty Gas Trucks



that the font of the equation is appropriate.



     ""he truck characteristic correction  factor is computed



from the fcllowinq equation:



           Pipnoq = bO + b^ (WV000) + b? (WT/CTD)



where:



     W"1  = vehicle weiqht



     CTD = enqine's cubic inch displacement



     bO, b1, and b2 are coefficients qiven in '"able TTT-9.



     When HDV weiqht and power  information is not available



(as usually will be the  case), this correction factor value



should be set equal to one.
G-  Iiii Emission  Factors for HEG_.  Estimates  of  qasoline-



powered, heavy-duty vehicle idle emission  rates  for  HC,  CO,



and  NOx can  be calculated  from the  information  in "able
H  Crankcase and Evaj>orati.ye Emission lactors..   Hydrocarbon



evaporative and crankcase emission rates  are qiven  in  ^able



TTT-8.  The KDV evaporative emission  rate was determined  by



assuminq that HDVs  travel an averaqe of  10.Q  trips per day



and accumulate an averaqe of 6?6 miles per day.
                            -36-

-------
                         Chapter IV






                                     D VEHICLES
                   ^he  discussion cf  heavy-duty, gasoline-



powered vehicles in  Chapter III is generally  applicable to




diesel-powered Heavy-duty vehicles.



     As in  Chapter III,  the eguaticn  for calculating  the



composite emission factor is given ty:








            Inpsoq = SUM ( Cipn*Min*Vi ps*Pipnoq )
B.   Pollutant Emission  Ictorj for  HDD_.   The first  year



emission rates  and deterioration  rates  (per  ''OjCOO adles)



used to  generate the tabled  emission factors are  given in




"able IV-1.



     The mean emission factors for diesel-powered heavy-duty



vehicles are given in Tables IV-2 through IV-4.



     Table IV-5a  presents the  average cumulative  mileages



for HDD  vehicles by age,  on July  *"  The numbers   in this



table are derived from the mileages presented in Table IV-5,



using the methodology presented in Appendix G.

-------
Chapter IV                        Heavy-Duty Diesel Vehicles



c   Weighting  Factors  for HDD..   The  discussion  of  the



weighting factor  in Chapter  III is  applicable tc  diesel-



powered HDVs  as well  as to  gasoline-powered HEVs.   "able



IV-5 gives the fraction of annual  travel by vehicle age for



diesel-powered HDVs.
D  SjDeed Correlation  Factor for H.E.E..  Table  IV-6 gives the



three coefficients  needed to  compute the  speed correction



factors  for   diesel-powered,  heavy-duty   vehicles.   The



correction factor can be applied between 5 and 55 nph.
           Characteristic Factor for  HDD.,  As  discussed in



Chapter  III, a  correction  factor  has been  developed  to



account  for  heavy-duty  vehicle weight  and  pcwer.   This



correction factor is applicable  to diesel-powered HDVs from



^9,000 to 55,000 pounds with  engines ranging frcro 540 cubic



inch displacement  to 600 CIC.    This correction  factor has



been designed  so as to  adjust the tabled  exhaust emission



factors  (assumed to be at half lead) for empty trucks or for



fully  loaded trucks.   Table  IV-6  gives the  coefficients



needed  to  compute  the   truck  characteristic  correction



factor.



 When weight  and power  information is  not available,  the



correction factor value should be set equal to cne.
                            -38-

-------
Chapter IV                        Heavy-Duty Diesel  Vehicles
?.  Id.le Iffiission Factors for  JJED,.  ^he idle emission rates
for diesel-pcwered HDVs  are given in Table  IV-"7.   ^he  idle
deterioration rates  are assumed  tc be  zero for  all model
years.
                            -39-

-------
                         Chapr.er  V





                        IMO^OFCYCIES






A    Introduction.,   Motorcycles, which  are  net  generally



considered an important, source of air pollution, have become



more  popular,   and  their   numbers  have   been  steadily



increasing  in  the   last  few  years.   The   majority  of



motorcycles are powered by either  2- or U-stroke air-cooled



engines; however,  water-cooled   motorcycles  and   wankel-



powered motorcycles  have recently  been introduced.   Until



recently, the  predominant use  of U-stroke  motorcycles was



for  on-high*ay use,  while  the  2-strcke motorcycles  were



predominantly for  off-hiqhway use.  '''his difference  in use



was primarily a  reflection cf significant weight  and power



variations between  available 2- and U-stroke  vehicles.  As



light-weight 4-strokes  and more  powerful 2-strckes  become



available, the relative number cf motorcycles in each engine



category may  change.  Currently, the  nationwide population



of  motorcycles  is  approximately   U%  2-strcke  and  5"%



4-stroke.  Although separate emission  rates previously were



given for 2-stroke and <4-strcke  engines, the emission rates



given here  are composites  cf six  different categories  of



motorcycles  (small,  medium, and larqe engines  fcr 2-stroke



and for ^-stroke).
                            -40-

-------
Chapter V                                        Motorcycles

B   Composite  JLxhaust Emis^sioji  Equation.,   mhe  composite

exhaust emission factor for motorcycles is calculated using:



             Enpstwx = SDM( Cipn*Min*Bipstwx )



where all lower case letters are subscripts and:

        SUM( )  = summation over  model year   (i) , from  the
                  calendar year  for which  emission factors
                  are being calculated  (i=n) to the calendar
                  year 19 years previous  (i=n-l9).

        Enpstwx = Composite  emission  factor in  gm/mi  for
                  calendar  year  nf  pollutant  p,  average
                  speed s,  ambient temperature  tr fraction
                  cold operation  w, and  fraction  hot start
                  operation x.

        Cipn    = The FTP P975 Federal Test Procedure)  mean
                  emission  factor for  the  ith model  year
                  motorcycles  during calendar  year n,  and
                  for pollutant p.

        Win     = The fraction  of annual travel by  the ith
                  model  year  motorcycles  during  calendar
                  year n.

        Pipstwx = The  temperature,   speed,  and   hot/cold
                  correction factor  for  the ith  mcdel year
                  motorcycles for pollutant pf average speed
                  sf  ambient temperature  t, fraction  cold
                  operation  w,   and  fraction   hot  start
                  operation x.

-------
Chapter V                                        Motorcycles



C.   Pollutant  jnission  factors   for  Sotorcycles^   Zero



mileage emission rates and deterioration  rates are given in



Table V-1.   The mean emission  factors for  motorcycles are



given in Tables  V-2 through V-4.  The  emission factors are



assumed to represent the average  emissions for July of that



calendar  year.   These   factors  are  for  the   same  F""P



conditions (temperature,  speed, etc.) as are  applicable to



light-duty vehicles  (see discussion in Chapter I).



 Table  V-5a presents  the average  cumulative mileages  for



motorcycles ty  age, on July 1.   The numbers in  this table



are derived from the mileages  presented in Table V-5, using



the methodology presented in Appendix G.
             Weighting  Factor,.    The  fraction  cf  annual



motorcycle travel by model year is shown in Table V-5.
E.  Temperature-Speed-Hot/Cold Correction  Factor..   This  new



correction   factor   takes   into   account   the    ambient



temperature,  hot/cold weighting,  and  vehicle  speed.    The



correction factor  description in  Chapter I  for light-duty



vehicles is equally applicable to motorcycles.   Pre-1968  LDV



factors  are  applicable  to   pre-19"78  motorcycles,  while



1973-714 LDV factors  are applicable to 19"8  and later model



year motorcycles.
                            -42-

-------
Chapter V                                        tfctorcycles



F  Idle  Iision Factor^..  Motorcycle idle  emission rates



are qiven in Table V-7.
G    Evaporative   Iaissi.cn    factors^    The   motorcycle



hydrocarbon evaporative  emission rates  were determined  by



assuming that motorcycles  travel 3.2 trips/day and  have an



average mileage of 5.2 miles per  urban trip.  The rumber of



trips per day and mileage per urban trip were taken from the



1?^U Gallup Motorcycle Survey.
                            -U3-

-------
                      TUPLE 1-1
               EXHAUST  EWISSIOK BATES
                  LIGHT-PUTT  VEHICLES
  FOR ALL AREAS  EICEPT  CALIFO&filA AMB KIGH-ftLTIT0DE
i A iGR/RJlEl
POLLUTANT


HC
HC
HC
HC

CO
CO
CO
CO
CO
MGX
HQx
IDs
10*
H IEW fEHlCLE
HODEi fEAE ii EHJSSIOi RATE
|  -  , -, _ 	 ~ 
1!
PRE-1968 H iJ.aS
1968-197a
1975-1979
1980 +

PRE-1968
1968-1971
1975-1979
1980
198 !*
pi-me
1968-1972
1973-1974
1975-1976
f 2.43
i 1.T3
1 0,13
i
f 68,30
j 3 1 . 1J
18.60
3,00
t,40
3.58
.3
2.98
1 2.42
BOx i 1977-1980 H 1.^0
JlOx r 1981* M 0.29
 -  f __ .. .. _ l_ ._
I
1
I

1
\
I
i
I
i
t
I
S
1
I
I






B ^GH/HILEj
DETEB10BATIOW RATE
(PER 10,000 RILES)


0.58
0.53
0.23
0,23

3.06
6.15
2.80
2.30
2.00
0.00
0.00
0.00
0.08
0.16
0.22

The Exhaust Enission  Factor  is calculated from
the linear equation f  =  a    bT, h*re  is the
exhaust ewissioss  factor  for  a  vehicle with
cuBulatJve nileago ff,  a  and  b  ate the factors
listed in the above table,  and f = H/10000.

-------
                                   TABLE 1-2

         HID-1EAR  EXHAUST KBISS10M  FACTORS FOR LIGHT-DUTY VEHICLES
                            HIDKOCARBOHS (GB/HIJ
             FOR  ALL REG10WS EXCEPT  CALJFGRRIA AD HIGH-ALTITUDE
I RODEL
|fAR
I
f1952|
|1953|
|1955|
I 1956 I
J 1957}
I1958J
|1959!
(1960|
1 196 If
119621
|!963!
119641
19651
{ 1966 !
| 19671
(19661
! 19fc9j
(19701
1 1971|
1 1972|
J1973I
 1974J
|1975|
|1976|
|1977|
|1978j
|1979 I
$1980|
|1981J
| 1983|
i1984|
1 19851
119861
|1987|
1 1988|
| 1989|
f 1990|
1
11970
14,2
14.0
13.7
13.4
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10.4
9,9
9.3
8.7
8.0
7.2
4.3
3.5
2.7



















1971
14.2
14.0
13.7
13.4
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10.4
9.9
9.3
8.7
8.0
5.0
1.3
3.5
2.7


















1972
14.2
14.0
13.7
13.4
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10. 4
9.9
9.3
8.7
5.7
5.0
1.3
3.5
2.7

















1973
14 Jo
13.7
13^1
12 ,,8
12, .5
12.1
11.7
11.3
HO .9
lo^u
9.9
9.3
6, .3
5.7
5.0
4 .3
3, 5
2.7
















CALEXDAR YEAR - July 1
1974 1975 1976 1977
14.2
14.0
13.7
13.4
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10.4
9.9
6.9
6.3
5.7
5.0
*.3
3.5
2.7















14.2
13^7
13.4
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10.4
7.4
6B9
6.3
5.7
5.0
4.3
3.5
1.3













14.2
14.0
13.7
13.4
13.1
12.8
12.5
12.1
11.7
11.3
10.9
7.9
7. ft
6.9
6.3
5.7
5.0
*.3
1.6
1.3












i

14.0
13.7
13.4
13.1
12.8
12.5
12.1
11.7
11.3
8.3
7.9
7.4
6.9
6.3
5.7
5.0
1.9
1,6
1.3












1978

14.2
14.0
13.7
13.4
13.1
12.8
12.5
12.1
11.7
8.7
8.3
7.9
7.4
6.9
6.3
5.7
2.2
1.9
1.6
1.3











1979


14.2
14,0
13.7
13.4
13.1
12.8
12.5
12.1
9.1
8.7
8.3
7.9
7.4
6.9
6.3
2.5
2.2
1.9
1.6
1.3










1980



14.2
14.0
13..7
13, 4
13S1
12.8
12.5
9.4
9.1
8.7
8.3
7.9
7.4
6.9
2.8
2.5
2.2
1.9
1.6
0.3









1981




14.2
14.0
13.7
13,4
13.1
12.8
9.8
9.4
9.1
8.7
8.3
7.9
7.4
3.1
2.8
2.5
2.2
1.9
0.6
0.3







!
R1SSX01I FACTORS FOR VEHICLES  THROUGH RODEL TIAE  1975 AND THROUGH
 CJslFSDAB IE*R  1975 ABE BASED 01 ACTUAL TESTS OF IM-DSE VEHICLES.
 POSf-1975  CALKSDAR TEAS EHISSIOW FACTORS FOB ALL  VEHICLES ARE PROJECTED,

-------
                 TA8LB 1-2   (FOR CALEIDAS YEABS  1982-1993)

         HID-YEAB EXHAUST  EKISS10S FACTOKS FOB  LIGHT-DOTY EHICLES
                             HYDBOCARBOHS  (GH/BI)
             FOB ALl REGIOIS EICEPT CILIFOBHIA AID HIGH-AITXTC0E
|HODLj
IYEAE t
 i _
11963!
I 196 |
Ii965i
119661
|1967|
| 1968|
| 1969J
I 1970|
|1971|
|1972|
|1973f
I 1974|
I 1975J
I 19761
|1977|
|1978|
I 1979J
| 19801
|1981|
I 19821
119631
f 198|
19851
|1986|
1 1987|
1 1988|
| 1989|
| 1990 1
I 1991|
I 19921
I1993J
1982
11.2
14.0
13.7
13.4
13.1
10.1
9.8
9.4
9.1
8.7
8.3
7.9
3.3
3.1
2.8
2.5
2.2
0.9
0.6
0.3











1983
14.2
1U.O
13.7
13.
10. 
10.1
9.8
9.1
9.1
8.7
8.3
3.5
3.3
3.1
2.8
2.5
1.2
0.9
0.6
0.3










1984
m^
m.o
13.7
10.6
10.4
10.1
9.8
9.4
9.1
8.7
3.7
3.S
3.3
3.1
2.8
1.5
102
0.9
Q6
0.3









1985
1H .2
U.O
10.9
'10.6
10.1
10.1
9.8
9.1
9.1
3.9
3.7
3.5
3.3
3.1
1.8
1.5
1.2
0.9
0.6
0.3








C11EMDAB IEAH - Jaly 1
1986 1987 1988 1989
1U. 2
11.1
10.9
10.6
10. 
10.1
9.8
9.U
4.0
3.9
3.7
3.5
3.3
2.1
1.8
1.5
1.2
0.9
0.6
0.3







11.
11.1
10.9
10.6
10. %
10.1
9.8
1.2
ft.O
3.9
3.7
3.5
2.3
2.1
K8
1.5
1.2
0.9
0.6
0,3






1 1*
11.1
10.9
10.6
10. 
10,1
1.3
U2
.o
3.9
3.7
2.5
2.3
2.1
1.8
1,5
1.2
0.9
0.6
0C3





11.4
11.1
10.9
10.6
10. ft
.*
.3
2
H.O
3.9
2.7
2.5
2.3
2,1
1.8
1.5
1.2
0.9
0.6
0,3




1990

11.4
11.1
TO. 9
10,6
*6
ft.H
*s,J
. 2
4.0
2B9
2.?
2.5
2,3
2.1
1.8
1.5
1.2
0e9
0.6
0*3



i9$i


If *!
11.1
10.9
7
i.6
.<*
*.3
ti.2
3.0
2.9
2K7
2.5
2.3
2.1
1.8
1.5
1.2
0.9
0.6
0.3


1992



11.4
11.1
4.8
4.7
4.6
U.l
4.3
3.2
3.0
2.9
2.7
2.5
2.3
2.1
1.8
1.5
1.2
0.9
0.6
0.3

1993




11.4
A. 9
4.8
*.7
H.fe
t.tt
3*3 I
32 |
3.0 I
2.9 I
2.7
2*5
2.3
2,1
1.8
1.5
1,2
0.9
0.6
0.3
*EHISSIOI FACTOES FOB VEHICLES  THROUGH BODE! YEAH  1975 AMD THROUGH
 CAIEXDAR XEAB 1975 ABB BASED  OM ACTUAL TESTS OF  IB-USE VESICLES.
 POST-1975 CALEIOAB YEAR ERISSIO* FACTORS FOB All  VEHICLES ARE PBOJECTED,

-------
                                   ?Jl.B!,K  J-3
         HID-tEIR SXHAQST  EHISSIO* FACTORS  FOR LIGHT-DUTf VEHICLES
                          CARBOI HOIOXIDE  (Ge/HI)
             FOR ALL BE6IOMS  EICEPT CJiLIFOillA AMD HIGH-A LTITUDE
JHODEll
JTEAR J1970 T971
S  1  * -.
I 195 1 11 9. 9
|1952|M8.5 119,9
11953{117.1 1185
|1951|115.6 117.1
|1955|111.0 115.6
119561112.1 111.0
|1957|110.6 112,1
J19581108.7 110.6
|1959| 106. 7 108,7
1 1960 | 10 1.7 106 . 7
|1961|102.1 101.7
|1962l 99.9 102***
f1963| 97.1 99.9
f1961| 91.0 97.1
|1965J 90.6 S1.0
11966J 87.0 90.6
|19&7| 83.0 87.0
|1968| 52.3 60.8
|1969| 13.2 52.3
|1976j 3Q,,8 *S3B2
11971? 31.8
|1972j
|1973f
f 197|
1 1975J
J1976!
1 1977J
J1978f
| 1979f
(1980!
1 1981|
f 1962|
|1983f
I1981|
t 1986J
|1987|
1 19681
I 1969!
119901
1972 IS
119.9
118.5 119
117.1 118
115.6 117
1T1.0 115
112. ft 11$
110.6 112
108.7 110
106.7 108
101.7 106
102.1 101
99,9 102
97B1 99
91.0 97
90,6 91
68.7 76
60^8 68
52,3 60
Q3.2 52
3ft. e 43
14
















73
.9
.5
.1
.6
.1
.6
,7
.7
.7
^
.9
.1
.0
.0
.7
.8
, 3
.2
,8
















CftlENDftB YEAB - Jul| 1
1971 197S 1976 1977
119.9
117*1
115.6
111.0
112,J
110.6
108 S7
106W7
10 S7
102,*l
99,9
97.1
82.8
76.0
68,7
60,8
S2,3
w 3.2
31.8















i
1
1
i
119.91
118.5?
117. 1 5
115. M
111. Of
112. It
110.6?
108.71
106.7|
10 1.7J
10?. 1 f
99,,9f
89. Oj
j 2.8 {
76,0}
&B.7J
60.81
52. 3 i
13.2 j
20.31
;
t
1











119
tie
117
115
11*)
112
'' ,0
108
106
101
102
91
89
8?
76
fe8
60
S2
21
20













.9
.5
.1
.6
t ^
.1
.6
.7
07
.7
.*
,7
.0
.8
.0
.7
.b
.3
.1
.3













11 f .9
118.5
17.1
115.6
111.0
112*1
110.6
108.7
106.7
101.7
99.8
91.7
85.0
32.8
76.0
68.7
60.8
28.2
21, 1
20.3












1978

119.9
118.5
117.1
115.6
111.0
112.1
T10.6
108.7
106.7
W1.3
99.8
9*4 .7
B9..0
2 ,8
76.0
68.7
32.1
28.2
21. 1
20 .,3











1979


119.9
118.5
117.1
115.6
111.0
112.1
110.6
108.7
108.1
101.3
99.8
9*7
89.0
82.8
76.0
35*7
32.1
28.2
21.1
20.3










1980



119.9
118.5
117.1
11S.6
111.0
112.1
110.6
112.1
108.1
101.3
99.8
91.7
89.0
82.8
39.0
35.7
32.1
28.2
21.1
1.1









1981




119.9
118.5
117.1
115.6
111.0
112.1
116.2
112.1
108.1
101.3
99.8
91.7
89.0
12.1
39.0
35.7
32.1
28.2
7.5
2.6








*EBISSI01T  FiCfOES FOR  EH3CIES THROUGH  flODEi IE*B  1S75 D THROUGH
 CI,D1  IOR 1975 ABE  BASED 01 ACTUAL TESTS OF  Il-OSE VEHICLES.
 POST-197S CILEIDAB fBAK 1HISSIOI FACTORS FOR ALL  VEHICLES ABE  PROJECTED.

-------
                 TABLE 1-3   (FOB CALENDAR  TEARS 1982-1993)

          BID-YEAR EIHlOSf  EHISSIOK FACTOBS  FOB LIGHT-DOT!  VEHICLES
                          CASED* ROBOXIDE  (GR/RI)
             FOE ILL REGIONS BICEPT CALIFORNIA AND HIGH-ALTITUDE
BOfcEL
YEAR
196 3 f
1964}
19fe5f
1966f
1967J
1968|
1969|
19?0|
1971|
1972f
11913!
i 197 j
j 19751
119761
19771
1978J
1979f
19861
19811
1982S
1963S
198f
1985|
19861
1987J
1988J
1989|
199 OJ
199 1 1
1992}
1993J
1
{1982
119.9
118. S
117.1
115.6
114.0
119.7
116.2
112. 4
108,4
164.3
99.8
94.7
4S.O
42.1
39.0
35.7
32. 1
10.9
5.3
2,6











1983
119.9
118.5
117.1
115.6
123.1
119.7
116.2
112.4
108,*
104.3
99.8
47.5
45.0
42.1
39,0
35.7
14.1
8.3
5.3
2.6










1984
119.9
118.5
117.1
126.2
123.1
119.7
116.2
112. *
108,4
109.3
49.8
47.5
45.0
42.1
39.0
17.0
11.0
8.3
5.3
2.6









1985
119.9
118.5
129.2
126.2
123.1
119.7
116.2
112.4
108.4
51.9
49.8
47.5
45.0
42.1
19.8
13.6
11.0
8.3
5.3
2.6








CALENDAR YEAR - July 1
1986 1987 1988 1989
119.9
132.1
129.2
126.2
123.1
119.7
116.2
112.4
53.8
51.9
49.8
47.5
45.0
22.3
16.0
13.6
11.0
8.3
5,3
2.6







134.8
132.1
129.2
126.2
123.1
119.7
116.2
55.6
53.8
51.9
49.8
47.5
24.6
18.2
16.0
13.6
n.o
a. 3
5.3
2.6






134.8
132. 1
129.2
126.2
123.1
119.7
57.3
55.6
53.8
51.9
49.8
26.8
20.2
18.2
16.0
13.6
11.0
8.3
5.3
2.6





134.8
132.1
129.2
126.2
123.1
58.9
57.3
55.6
53.8
51.9
28.7
22.1
20.2
18.2
16.0
13.6
11.0
8.3
5.3
2.6




1990

134.8
132.1
129.2
126.2
60.4
58.9
57.3
55.6
53.8
30.4
23a7
22,1
20.2
18.2
16,0
13.6
11.0
8.3
5.3
2.6



1991


134.8
132.1
129.2
61.9
60.4
58.9
57.3
55.6
31.9
25.2
23.7
22.1
20.2
18.2
16.0
13.6
11.0
8.3
5.3
2.6


1992



134,8
132.1
63.3
61.9
60.4
58.9
57.3
33.4
26B5
25.2
23.7
22.1
20.2
18.2
16.0
13.6
11.0
8.3
5.3
2.6

1993




134.8
64.5
63.3
61.9
60.4
58.9
34.8
27.8
26.5
25.2
23.7
22.1
20.2
18.2
16.0
13.6
11.0
8.3
5.3
2.6
*Ef!ISSIOI  FACTORS FOR VEHICLES THROUGH HODEL TEAR 1975 AND  THROUGH
 CALENDAR  YEAR 1975 ARE  BASED OK ACTUAL  TESTS OF IM-USE VEHICLES.
 POST-1975 CALENDAR YEAR  EMISSION FACTORS  FOR ALL VEHICLES  ARE PROJECTED.

-------
                                  TABLE  I-SJ

         HID-TEAB  EXHAUST EfllSSlOH FACTORS  FOR LIGHT-DOT!  VEHICLES
                          IlfSOGEi OXIDES (GH/HI)
            FOB  ALL BEGIOXS EXCEPT CALIFORNIA ABD HIGH-ALTITUDE
| KG DEL 1
ITEAB |1970
I1951J 3.6
| 19521 3.6
|1953f 3.6

| 1955| 3 .6
11956| 3.6
|1957f 3.6
1 1958 I 3.6
|1959| 3.6
! 19601 3.6
|1961f 3.6
11962! 3.6
ti OC. ~3 V ? 
lytJi j.b
|196$| 3.6
| 1965{ 3,6
|1966| 3,6
119671 3.6
| 1968 | ft.1
|1969f .
|1970| *.
1 197IJ
11973!
| 197tt f
|1975|
119761
|1977|
|1978|
| 1979|
|1980!
1 198 If
|1982|
|1983|
|1985|
| 1986|
|1987|
iiii
CALEMDAB TEAB - July 1
1971 1972 1973 197ft 1975 1976 1977
3.6
3.6 3.6

3.6 3.6 3.6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
3L. "3 t "J 41 ?. 1 *
b J b J  *> Jb Jtfb
3.6 3.6 3.6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
3.6 3.6 3,6 3.6 3.6
3.6 3.6 3.6 3.6 3.6
ft.tt U.I >t. 4 ft. ft ft.ft
li ti fill All Bll il U
. >* "*"* * .* .*
flft li2 tttt Qti titt
ti& tic& &tt fti& dtt
3.0 3.0 3.0
3.0 3.0
2.5












&

3.6
3.6
3.6
3.6
3.6
3.6
3*
.*>
3.6
3.6
3.6
3.6
1 .4
*.
M.J
8l.it
Ufl
* "
3,0
3.0
2.6
2,5













3.6
3.6
3.6
3.6
3.6
3c
.*
3.6
3.6
3.6
3.6
it vi{
*.*
*l .$
*.
b It
* **
3.0
3.0
2.7
2.6
1.6










1978


3.6
3.6
3.6
3.6
3t
v v
3.6
3.6
3.6
3.6
4 .1
U.14
* 1
4
-------
                 TABLE  1-1   (FOB CALENDAR  YEABS 7962-1993)

          HID-IEAR EXHAUST  EHISS10N FACTORS  FOB LIGHf-DUTI  VEHICLES
                           NITROGEN OXIDES  (GH/HI)
             FOR ALL REGIONS EXCEPT CALIFORNIA AND HIGH-ALTITUDE
(RODELI
IYEAR |
1 -
If9fe3{
| 1961!
|T965|
| 1966J
J19671
! 19681
|1969!
J1970J
J1971I
{1972J
(1973!
|1971!
119751
11976!
!1977(
Iff78|
119791
I1980J
|1981!
!1982|
!19831
(1981!
|1985|
(19861
(1987J
f 1988!
1 1989J
J 1990 {
11991!
| 19921
!1993|
1982
3.6
3.6
3.6
3.6
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
3.2
3.1
2.7
2.5
2.3
2.0
0.7
0.1











1983
3.6
3.6
3.6
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
3.2
3.2
2.8
2.7
2.5
2.3
1.0
0.7
0.1










1981
3.6
3.6
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
3.3
3.2
3.0
2.8
2.7
2.5
1.3
1.0
0.7
0.1









1985
3.6
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
3.1
3.3
3.2
3'.0
2.8
2.7
1.6
1.3
1.0
0.7
0.1








CALENDAR YEAR - July 1
1986 1987 1988 1989
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
3.1
3.1
3.3
3.2
3.0
2.8
1.9
1.6
1.3
1.0
0.7
0.1







1.1
1.1
1.1
1.1
1.1
3.0
3.0
3.5
3.1
3.1
3.3
3.2
3.0
2.1
1.9
1.6
1.3
1.0
0.7
0,1






1.1
1.1
1.1
1.1
3.0
3.0
3.5
3.5
3.5
3.1
3.3
3.2
2.1
2.1
1.9
1.6
1.3
1.0
0.7
0.1





1.1
1.1
1.1
3.0
3.0
3.6
3.5
3.6
3.5
3.1
3.3
2.6
2.1
2.1
1.9
1.6
1.3
no
0.7
0,1




1990

1.1
1.1
3.0
3.0
3.6
3.6
3.7
3.6
3.5
3.1
2.7
2.6
2.1
2,1
1.9
1.6
1.3
1.0
0,7
0.1



1991


1.1
3.0
3.0
3.7
3.6
3.8
3.7
3.6
3.5
2.9
2.7
2.6
2.1
2.1
1.9
1.6
1.3
1.0
0.7
0,1


1992



3.0
3.0
3.7
3.7
3.9
3.8
3.7
3.6
3.1
2.9
2.7
2.6
2.1
2.1
1.9
1.6
1.3
1.0
0.7
0.1

1993




3.0
3.7
3.7
1.0
3.9
3.8
3.7
3.2
3.1
2.9
2.7
2.6
2.1
2.1
19
t.fe
1.3
10
0,?
0.1
EBISSIOI  FACTOBS FOB VEHICLES THROUGH HODEL YEAR 1975 AND  THROUGH
 CALENDAR  IEAI 1975 ARE BASED ON ACTUAL TESTS OF IU-USE  VEHICLES.
 FSST-1975 CALENDAR YEAR  EHISSIOI FACTORS  FOR ALL VEHICLES  ABE PROJECTED,

-------
             TABLE  1-5


TRAVEL HEIGHTIHG  fACTOB  CA1CULATIOM


        L1GBT-DOTT  EHICLES
Vehicle
     (a)
Practice
Total
     (b)
Annual nileage
                                          ( (a) * (b)/SOB)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IS
16
17
18
19
20
0.075
0.107
0.107
0.106
0.100
0.092
0.085
0.077
0.066
0.052
0.039
0.027
0.018
0.01ft
0.009
0.006
0.005
0.005
0.005
0.001
15900
15000
IK 000
13100
12200
11300
10300
9
-------
                         TABLE  I -5 A
                 *ESAGE eUffUMTIVE S1J.EAGE
                   Pf VFHTrLF  AGE - Joly  1
              A
-------
                              fIBLE 1-6

                    General For mala for Bipstwx

     fhe general foceola for the speed-teBperatBre-hot/cold correction
     factor, iipsiwau for IIGHT-DUTY VEHICiES is given by:

               Bipstvx 
where
                                      DENOR

                  * for multiplication and xp for exponential  function)
       B&G1TEBB =    v   ^(eap (a-b*T) * c 4 d*A) * (v {2,l)/v (2,26) )
       8IC3TESH =    x   % (             e s f *&) * ( (g,s3>,
       B*62TEIB = (1--x)*(             b  ]'**)* (v(g
       DEIOfl    = (dC * d 1**)

 - fraction of total niles which are driven in cold start condition
x - fraction of total Kiles which are driven in hot start condition
f - ambient temperature (F)
ft - vehicle age ninas 1, in years
g - index foi aodel-fcar/itegion groups; see Table l-6a
s1,s2,s3 * average speeds (Biles/hour) for bags 1.  2, and 3
v{gEi) = bag-specific speed correction iactor; see Appendix B

    where;
  afc,c,d,e,f,h,jd0r and dl are constant coefficients which are
    functions of eodel-year group and pollutant, as follows:

1 I
HC| 1
HCj 2
BC| 3
HC J 1)
COf 1
CO J 2
C0| 3
COf J
|M03I| 1
fHORj 2
|MOx| 3
I _l_ _
a
2.9310
2.9310
2339
1.993
S.6548
5.6548
-100.
-100!
t -100.
[
b J c | d
J., f
~ i ~ ~" 1
,014779f ,673| e569
,OI4779f -2.41| .863
W023591| ,623| .301
.0222fe9f -.0321 .445
ft  ^
- - f
.0159S5) -im,?*?! 9.62
B015965|-33.89J 9.77
.028945f 1!.29| .2i
.0175221 -.20 | 6.99
0.0 | 1.14  0.0
000 1 1.16 i 0,0
0.0 I :i826 1 ,,335
0.C 1 J.C5 1 .318
*  i_
f e
4.75
2.43
1.11
.497
25^26
15.85
4.12
1.25
1.26
2.99
2.88
\
f | h
1
.393| 5.69
.555f 2.61
.284| 1.05
.3571 .243
5.76| 57.57
4.71J 35.90
2.34| 21.17
2.20| 3 .,96
o.o r o.si
OeO 1 0.80
\ ,184| 1.89
i l__ 1
j 1 dO f dl
1
.471| 5.671 .47
.597{ 2.801 .64
.270J 1.38| .28
.175f ,54f .28
	 i 	 	
7. 74|56.43I7. 59
6. 70|36. 40J6.79
3.13|23.70|3.14
2.121 6.9813.14
0.0 1 1.0 I 0.0
0.0 | 1.0 f 0.0
Il26| 2ll6t 1 16
! 1 1-
1
s
i
-
t
i
t
V
1

Eqn

1
2
3
*4

f

J
I
It
1
1
f
i
Csed for


.Toj UC and CO
Pre-1968
1968-1974
1975-1979
!;cst~ "179

Rodel


J
,
i
1

{
Tears


For
Pre-






*0
1
1968-
1975
Post

-
..

9&8
1974
1976
1976


-------
                     TABLF I-6a

         Specification of Speed Terns  (Vg)
      Used in the General Foreolas for Bipstwx

                 LIGHT-DOT* fEBICLES

  FOB ALL AREAS EXCEPT CALIFOHIIA AMD HIGH-ALTITUDE
Low-Altitude Pre-1968                     Group  2
Low-Altitude 1969                         Group  5

Low-Altitade 1970                         Group  fc

Low-Altitude 1971                         Group  7

Low-Altitude 1972                         Group  ts

Low-Altitade 1973-197H                    Group  17

Io-iltitade 1975+                        Group  16

-------
                     TABLE  I-?
                IDL t  EHISSTOW  SATES
                 LIGHT-DUTY  VEHICLES
  FOR JILL AREAS OCEPT CALIFOBUI*  AKD HI6H-A1TITDDE

FOLL0TAMT

HC
HC
HC
HC

CO
CO
CO
CO
CO

HO*
NOX
HOI
MOX
KOX
NOX


MODEL YEAR

PRE-1968
1968-197<*
1975-1979
I9BO-*

PRE-1968
1968-1971
1975-1979
1980
19BU

PR E -156 8
1968-1972
1973-197U
1975-1976
1977-1980
198 I*


1
i

i
1
1
1
{
J
f
1
f
i
1
i
I
1
1
1
5
i
L * IG?sZniK*l J
NEW VEHICLE
EBISSIOS BATE
__*..____
2.01
0.68
0.27
0.0^

16 ,ft2
12,73
S.$ J
0.88
0^*1

0.16
0,26
0. 16
0.3*
0.22
00
f . _ -.. _
L B jgH^Hmjti
DETEB10RAT10K RATE
{PER 10,000 BILES)

0.18
0.20
0.07
0.07

2.S5
2.92
0.fc3
f O.C7
i 0 . 'j*

0.00
0.00
0.00
0.03
0.06
0.08
1
The Idle Emission Factor,  is  calculated from
the linear equation C  =  a *  bT,  where C is the
idle emission factor lor  a vehicJe with
cumulative aijeage K,  a  and  b  are  the factois
listed in the aboe table, and I - /10000.

-------
                     TABLE  1-8




   Crankcase and Evaporative  HC  Emission  Factors
                UGHT-DOTI  VEHICLES




 FOR ALL AREAS EXCEPT CALIFOBNIA  AND HIGH-ALTITUDE
Hodel_Iear               Hydrocarbon  Emissions (qa/mi)




 Pre-1963                           6.63




T963-1967                           3.33




1968-1970                           2.S3




1971-1977                           1.76




1978-1979                           0.60




  1980+                             0.1S

-------
                         TABLE 1-9

               ID? Loading Correction Factor
          (Additional 500 Pounds, All Hod el leats)
The Loading Correction Factor* L(p) , is given by;

            l(p) = u*(cf(p) - 1.0)  * 1.0

where:

  u     * fraction of vehicles with additional  load of 500  pounds

  cf (p)  correction factor values  selected fro* table below

  L(p)  * Loading Correction Factor
        HC                                    1.06

        CO                                    1.20

        Ox                                   1.03

-------
                            TftBLE 1-10

               LDV Trailer Towing Correction Factor



   The Trailer Towing Correction Factor, L (p), is  given  by:

               Oipw = u(cf(p) - 1.0) *  1.0

   where:

     a     = fraction of vehicles towing a trailer  (1000 pounds)

     cf (p) = correction factor values selected fro below

     Uipw  = Correction Factor adjusted  for usage  level

1.  cf(p) correction factor values for pre-1975 Hodel  Tears
    (additional 1000 pounds)
       Pollutant

          HC                                     1.32

          CO                                     2.15

          HOx                                    1.16

B.  cf(p) correction factor values for  1975 and  later  Hodel  Tears
    (additional 1000 pounds)
                 (P) =
                        w *  (1-)*c(p)
            Pollu_tan     *j(El_    i>lEl_    .El_

               BC         1.32     0.75     0.43

               CO         2.15     1.55     0.39

               MOx        1.16     1.26     0.92

       and where w - fraction of total HT  in cold  operation.

-------
                     TABLE II-1
               EXHAUST  EHISSIO* BATES
      IIGHT-DOTf TRUCKS:  BOTH WEIGHT CATEGORIES
  FOR III AREAS EICEPT  CALIFOBRIA AMD HIGH-ALTITUDE
POILUTAIT
	 	 -
HC
HC
HC
HC
HC
HC
CO
CO
CO
CO
CO
CO
Ox
BOx
OX
ROx
VOX
NOx
 Ox
RODEL YEAR
piE-me
1968-1969
1970-19711
1975-1978
1979-1982
1983*
PBE-me
1968-1969
1970-19711
1975-1978
1979-1982
1983*
PRE-1968
1968-1969
1970-1972
1973-1974
1975-1978
1979-1989
1985*
IEW VEHICLE
Efi I SS IOH RATE
H.76
3.25
2.56
1.92
0.9*
0.31
70.38
42.08
31.48
23. 44
14.50
3.87
.16
ft .90
1,59
3.56
3.62
1.73
O.<*1
DETEFJORATIOI BATE
(PER 10,000 RILES)
0.58
0.54
0.53
0.46
o.n
0.23
3.06
5.l ate the
listed in the abwe table, sn^ f - a/

-------
                    TABLE II-IA
               EXHAUST  EBISSIOB  RATES
            LIGHT-DUTY TBOCKS  (0-6K
  FOB ALi AREAS EXCEPT CALIFOBVIA  AID  HIGH-ALTITUDE
POLLOTAVT
HC
HC
HC
HC
HC
CO
CO
CO
CO
CO
 Ox
XOx
MOX
lOx
KOx
MOx
HOD EL YEAB
_ 	 	
PBE-1968
1968-197*
1975-1978
1979-1982
1983*
PBE-1968
1968-197*
1975-1978
1979-1982
1983*
PB1-1968
1968-1972
1973-197*
1975-1978
1979-198*
1985*
EN VEHICLE
ERISSIOH BATE
*.*5
2.*3
1.11
0.9*
0.31
68.30
31.1*
16.10
1*.50
3.87
3.58
*.*3
2.98
2.*5
1,73
O.*1
DETERIORATION BATE
(PEB 10,000 HILES)

  . _.____.. _
0.58
0.53
O.*l
O.*l
0.23
3.06
6.15
5.3*
5.3*
2.00
o.oo
0.00
0.00
0.00
0.11
0.22
The Exhaust Esission Factoc is calculated  fcoa
the linear equation C = a * bl, where C  is the
exhaust emission factor for a  vehicle with
cumulative aileaqe n, a and b are  the factors
listed in the above table, and Y =  R/10000.

-------
                    TABLE II-1B
               EIHAUST EHISSION RATES
           LIGBT-D0TT TRUCKS (6-8.51 G?H)
  FOB AH AREAS EICEPT CALIFORNIA AMD HIGH-ALTITUDE
                    L	A	IGH/HILEI_I	B	
POLLOTAVT
HC
BG
RC
HC
CO
CO
CO
CO
Ox
OX
 OX
 OX
MODEL TEAR
PBE-1970
1970-1978
1979-1982
1983*
PIE- 1970
1970-1978
1979-1982
1983*
PRE-1970
1970-1978
1979-198*
1985*
EN VEHICLE
EHISSIOR BATE
5.99
2.90
0.9ft
0.31
78.70
32.10
m.5o
3.87
6.H9
5.0*1
1.73
0.11
DETERIORATION BATE
(PEB 10,000 RILES}
 ~  -._..  __.
0.58
0.53
0.41
0.23
3.06
6.15
5.3*
2.00
0.00
0.00
0.11
0.22
The Exhaust Emission Factor is calculated ftom
the linear equation C = a * bY, where C is the
exhaust enission factor for a vehicle with
cuulatie aileage R, a and b are the factors
listed in the above table, and T - H/10000.

-------
                                    TABLE  II-2

HI0-TEAR EIHAOST  EHISSIOM FACTORS FOB  LIGHT-DOTI TRUCKS: BOTH WEIGHT CATEGORIES
                              HTDROCARBORS (GH/BI)
               FOR  ALL REGIOiS EXCEPT CALIFORNIA AMD HIGH-ALTITUDE
                                CALEUDAB  YEAR  - July 1
|fAR
I
{ 195 If
|1952|
11953!
1 1951 1
1 1955|
|1956|
I 19571
t 1958f
f 1959J
|1960J
I19fcl|
|1962|
|19fc3f
j1961f
|1965|
|1966f
|1967|
1"S Q L O 1
9 j* C* J> I
j1970f
f 197 1 |
|1972|
| 1973|
US71J
I197S1
i 197fc !
J1977|
|I978|
|1979|
| 1980|
| 1981J
|1982f
1 I963J
| 198$f
1 1985}
\ 1986 S
I t % "1 1
| 1i"8 |
|1989|
|I%901
|1970

11.5
11.2
11.0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
11.2
10.7
10.2
9.6
9.0
8.3
7.6
5.1
2l9




















1971


11.5
11.2
11 .0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
11.2
10.7
10.2
9.6
9.0
8.3
5.9
5t
. i
2l9



















1972



11.5
11.2
11.0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
11.2
10.7
10.2
9.6
9.0
6.6
1.1
3.6
2.9


















1973




"'<' ,,,k~
IU. 2
11.0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
U.2
10.7
10.2
9.6
7.2
5.1
i.d
3.6
2.9

















197ft





11.5
11.2
IU .0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
11.2
10.7
10.2
7.8
5.8
5.1
1.1
3.6
2.9
















1975






11.5
1. 2
11.0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
11.2
10.7
8.3
6.1
5.8
5.1
1.1
3.6
2.2














1
1976

1*





11.5
11.2
11.0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
11.2
8.8
81
. J
7.0
6.1
5.8
5.1
1 .1
2.8
2.2









^

\
1

1977








11.5
11.2
11.0
13.7
13.1
13.1
12.7
12.1
12.0
11.6
9.2
8Q
.0
7.5
7.0
6.1
5.8
5.1
3.5
2.8
2.2













1978









11.5
11.2
11.0
13.7
13.1
13.1
12.7
12.1
12,0
97
 *
8.0
7.5
7.0
6.1
5.8
1.2
3.5
2.8
2.2












1979










11.5
11.2
1* .0
13.7
13.1
13.1
12.7
12.1
10.0
9C
.D
S.I
8.0
7.5
7.0
6.1
1.7
1.2
3.5
2.8
1.2











1980











11.5
11.2
11.0
13.7
13. ft
13.1
12.7
10. *
in n
IU .U
8.8
8.1
8.0
7.5
7.0
5.3
1.7
1.2
3.5
1.7
1.2










1981 f












11.5
11.2
11.0
13.7
13.1
13.1
10.7
Trt ft
IU .1
9.2
8.8
8.M
8.0
7.5
5.8
5.3 
1.7 I
1.2
2.1
1.7
1.2









  f?ISS!0! FACTORS  FOR VEHICLES THROOGH  BOO SI, SEAR 1975 AID TH10HGB
   OtOBIS 11X8  1975 AiE BASED 01 ACTUAL TESTS OF II-U5E fEHICLES.
   POST-197S CALENDAR IEAR EHISSIOR FACTORS FOR ALL VEHICLES ARE  PROJECTED.

-------
                   TABLE II-2   {FOB CALENDAR EAES  1982-1993)
1ID-TIAF EXHAOST EBISSION FACTORS  FOR LIGHT-DOT! TRUCKS: BOTH HEIGHT  CATEGORIES
                               HfDROCAKBONS  (GB/BI)
               FOB Ail REGIONS EIC1PT CAL1FOBIIA *!>  MICH-1
(MODEL |
ITEAR |
1963|
1964|
1965|
1967|
1968|
1969|
1970 f
1971J
1972|
1973|
1974J
19751
1976|
1977J
1978|
1979|
1980|
1981|
1982 f
1983|
1984|
1985|
1986|
1987f
19881
1990J
1991J
1992|
1993|
1982
14.5
14.2
14.0
13.7
13.4
11.0
10.7
9.5
9.2
8.8
8.4
8.0
6.2
5.8
5.3
4.7
2.9
2.4
1.7
1.2










1983
11.5
14.2
T4.0
13.7
11.3
11.0
9.8
9.5
9.2
8.8
8.4
6.6
6.2
5.8
5.3
3.4
2.9
2.4
t.?
Q,1?









1984
14.5
14.2
14.0
11.6
11.3
10.1
9.8
9.5
9.2
8.8
7.0
6.6
6.2
5.8
3.9
3. H
2.9
2.4
0.8
0.4








1985
14.5
14.2
11.8
11.6
10.4
10.1
9.8
9.5
9.2
7.3
7.0
6.6
6.2
* .3
3.9
3H
 *
2.9
1.1
0.8
0.4







CALENDAR TEAR - July 1
1986 1987 1988 1989
11.5
12.1
11.8
10.7
10.4
10.1
9.8
9.5
7.7
7.3
7.0
6.6
1.7
4.3
3.9
3.4
1.*
1.1
0.8
0.4






12.3
12.1
11.0
10.7
10. a
10,1
9.8
8.0
7.7
7.3
7.0
5.1
4,7
4.3
3.9
1.7
1.1
1.1
0.8
0.1





12.3
11.2
11.0
10.7
10.4
10.1
8.2
8.0
7.7
7.3
5.4
5.1
4.7
1.3
2.0
1.7
1.1
1.1
0.8
0.4





11.2
11.0
10.7
10.4
8.5
8.2
8.0
7.7
5.7
5.4
5.1
4 .7
2.2
2.0
1.7
1.4
t.l
0.8
0*
 "



1990

11.4
11.2
n.o
10.7
8.8
8.5
8.2
8.0
6.0
5.7
5.4
5.1
2.4
2.2
2.0
1.7
1.4
1.1
Ofi
* 0
0.4



1991


11.4
11.2
11.0
9.0
8.8
8.5
8.2
6.3
6.0
5.7
5.4
2.6
2.4
2.2
2.0
1.7
1.4
0.8
0.4


1992



11.4
11.2
9.2
9.0
8.8
8.5
6.5
6.3
6.0
5.7
2.8
2.6
2.4
2.2
2.0
1.7
1.1
0.8
0.4

1993




11,4
9.4
9.2
9.0
88
6.8
6.5
6.3
6,0
3.0
2.8
2.6
2.4
2.2
2.0
1.4
1.1
0.8
0.4
  *EBISSION  FACTORS FOR VEHICLES  THROUGH fiODEL  TEAR  1975 AMD THROUGH
   CALENDAR  TEAR 1975 ARE BASED  OM ACTUAL TESTS OF  TK-OSE S
   POST-1975 CALENDAR TEAR EBISSIOK 7ACYORS FOf  Ai.  VEHICLES

-------
                                      tABLS  II-Jl

KID-TCID  EITST EBISSIOi FACT0BS FOB LIGBT-DOTI TROCKS:  BOTH WEIGHT CATEGORIES
                             CARBOi ROKOilDI  (GP/J51J
               FOR  ALL  SEGIOHS  EICEPf CAUFOEill 110 IGH-AifITODE
fHODEL
fTEftfi
!
| 19*5 l j
} 1955 r
I 1956|
J1957J
f 1958J
J 1959 |
f 1960S
196 If
1962f
19631
19fcft f
1965f
1966J
I967|
19681
| 1969}
1 1970{
t 197 1J
| 1372 |
|1!*73|
| 1%?* f
i 975|
i 1976|
1 19??!
| 1978 |
J 1979 J
S VjtJOl
1 1981|
| 1962|
I I9P3|
| T9M |
i 1985|
1 1 **?.!
' . ": b , J
I*"!
i
1970
121,7
120. 
119.0
117.5
115,9
11Q.2
112.5
110.6
108.6
106.5
104.3
10 1.8
99.0
96.0
92.7
89.0
85.1
60.8
52.8
35.1


















1971
121.7
120.4
1T9.0
117.5
115.9
114,2
112.5
110.6
108.6
106,5
104.3
101.8
99.0
96.0
92,7
89,0
68.3
60.8
43.5
35.1

















1972
121.7
uslo
1175
115.9
114.2
112.5
110,6
108.6
106.5
104.3
101.8
99.0
960
92.7
75a3
68.3
52.7
43B5
35.1
















1973
121,,?
120.4
119.0
117.5
115.9
114.2
112.5
110.6
108.6
106.5
104.3
101.8
99.0
96.0
8 1.7
75.3
61.2
52.7
43.5
35,1















CALEBDAB TEAR - July 1
1974 1975 1976 1977
121.7
120.4
119aO
117.5
115.9
114.2
112.5
110.6
108.6
106.5
104.3
101.8
99.0
87.6
81.7
69,0
61.2
52.7
4 $.6
35.1














i*
S
1
1
1
121.7J
120.4| 121.7
119.01120.4
117.5|119.0
115.9|tl7.5
114.2|1T5^9
?12.5| 114.2
110.61112.5
108.6|110.6
106.5| 108.6
104. 3|106. 5
101.81 104.3
93.1} 98.0
87, 6j 93.1
76.21 82.8
690f 76.2
fe 1.2 | fe9.0
52.7| 61,2
43.6J 52,7
26a8| 34.6
| 26.8
1
f
i
i
s
j
i
i
i
s
1
f
121.7
120.4
119.0
117.5
115.9
114.2
112.5
110.6
108.6
106.5
102.5
98.0
68.9
82.8
76,2
69.0
61.2
43 .2
34.6
26.8











1978

121.7
120.4
119.0
117.5
115.9
114.2
112.5
110.6
108.6
106.5
102.5
94ffl4
88.9
82,8
76.2
69.0
51.0
43.2
34.6
26.8










1979


121.7
120.4
119.0
117.5
115.9
114.2
112.5
110.6
110.2
106.5
99.4
94.4
88.9
82.8
76.2
58.2
51.0
43.2
34.6
17.7









1980



121.7
120.4
119.0
117.5
115.9
114,2
112.5
113.7
110.2
104.0
99.4
94.4
88.9
02.8
64.8
58,2
51.0
43.2
25.0
17.7








1981




121.7
120.4
119.0
117.5
115.9
114.2
117.0
113.7
108.1
104,0
99*4
94.4
88.9
70,8 |
64.8 |
58.2 j
51.0 i
33,0 
25,0 1
17.7 i
i
i





   T-T?ISSIO FICfOES  FOB 7EBICLES  THBOOC-H fSODEL 5EA8  1975  IMD TH8OUGH
   CAliUDAR IAI  1975 ABE BASED OS ACTBAi  TESTS OF I1-US3E VEHICLES.
   ??>;;?-1975 cmiSDAR 1EA EMSSIOS FACTORS  FOR hll VEHICLES SEE PROJECTED.

-------
                   TABLE II-3   (FOB CALEBDAR YEARS  1982-1993)

KID-YEAR  EXHAUST ERISSIOI FACTORS FOR LIGHT-OUT* TRUCKS: BOTH WEIGHT CATEGORIES
                            CARBOI HOBOXIDE  (G PI/PI I)
               FOR ALL REGIQBS  EXCEPT CALIFORNIA AID HIGH-ALTITBDE
nODEL
fEAR
19fe3|
1964J
1965|
tSfcfcj
1967J
19681
1969C
19701
1971J
1972J
1973[
1974|
J975J
197fc|
1977f
1978J
19791
196fl|
1981|
19621
19831
19641
1965|
1986)
19871
1988}
1989|
199Cf
1991|
1992|
1993|
1
|1982
121.7
120. ft
119.0
117.5
115.9
120.2
117.0
112.1
108.1
104.0
99. ft
94.4
76.3
70.8
6*1.8
58.2
40.3
33.0
25.0
17.7











T983
121.7
120. 4
119,0
117.5
123.1
120.2
1T5.9
112.1
108.1
103.9
99.4
81.3
76.3
70.8
64.8
47.1
10.3
33.0
25.0
5.1










1984
121.7
120.4
119.0
125.9
123.1
119.5
115.9
112.1
108.1
103.9
85.9
81.3
76.3
70.8
53.2
47.1
40.3
33.0
7.8
5.1









1985
121.7
120.4
128.6
125.9
122.8
119.5
115.9
112.1
108.1
90.2
8S.9
81.3
76.3
58.9
53.2
47.1
40.3
10.8
7.8
S.I








CALEBDAR IEAB - July 1
1986 1987 1988 1989
121.7
131.1
128.6
126.0
122.8
119.5
115.9
112.1
94.1
90.2
85.9
81.3
64.0
58.9
53.2
47.1
13.5
10.8
7.8
5.1







133.5
131.1
129.0
126.0
122.8
119.5
115.9
97.8
94.1
90.2
85.9
68.8
64.0
58.9
53.2
16.1
13.5
10.8
7.8
5.1






133.5
131.8
129.0
126.0
122.8
119.5
101.3
97.8
94.1
90.2
73.1
68.8
64.0
58.9
18.4
16.1
13.5
10.8
7.8
5.1





134.5
131.8
129.0
125.9
122.8
104.6
101.3
97.8
94.1
77.0
73.1
68.8
64.0
20.5
18.4
16.1
13.5
10.8
7.8
5.1




1990

134.5
131.8
129.0
125.9
107. 7
104.6
101.3
97.8
80.7
77.0
73.1
68.8
22.4
20.5
18.4
16. 1
13.5
10.8
7.8
5. T



1991


134.5
131.8
129.0
110.6
107.7
104.6
101.3
84.2
80.7
77.0
73.1
24.2
22.4
20.5
18.4
16.1
13.5
10.8
7.8
5.1


1992



134.5
131.8
113.4
110.6
107.7
104.6
87.5
84.2
80.7
77.0
25.8
24.2
22,4
20.5
18.4
16.1
13.5
10.8
7.8
5.1

1
1993 I




134.5
116.1
113.4
110.6
107.7
90.6
87.5
84,2
80,7
27.3
25.8
24.2
22,4
20.5
18.4
16.1
13.5
10.8
7.8
S.I
  *EI5ISSIOB  FACTORS FOR VEHICLES THROUGH HODEL  IEAB 1975 AID  THROUGH
   CALEBDAB  TEA8 1975 ARE BASED OB ACTUAL TESTS OF in-USE VEHICLES.
   POST-1975 CALEIDAR TEAR  ERISSIOB FACTORS FOR ALL VEHICLES  ARE  PROJECTED.

-------
                                    T1B1E II-H

W1D-TEAB EXMA0ST  IBISSIOW FACTOBS FOB LIGHT-DOT!  TBOCKS: BOTH WEIGHT CATEGORIES
                            IITBOGEV OXIDES  (GB/BI)
              FOF  ALL  BEGIONS EXCEPT CALIFOBIIA AID HIGH-ALTITUDE

1951f
1952|
1953|
195*1
1955|
1956|
1957|
1958|
1959J
1960|
1961}
19621
1963!
1961|
1965|
19661
19t7f
1968|
19691
1970|
197 If
19721
t Q 1 "1 I
1" / J f
f O "# -. ft
I :? # D 
*8 *T8 "7 1 ft
S J f f> 1
1977|
i Q-) a i
I 7 / C i
1979J
198CI
198 1J
1982J
19831
198{
|1987|
| 19861
I 1989J
f 19901
1970
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1,2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.9
1.9
1.6

















1971 1972
4.2
1.2 .2
1,2 .2
1.2 .2
1.2 .2
1.2 .2
1.2 .2
1.2 .2
1.2 1.2
1.2 1,2
1.2 1.2
1.2 H.2
1.2 1.2
1.2 1.2
1.2 1.2
4.2 4.2
4.9 4.9
4.9 4.9
4.6 4.6
1.6 4.6
1.6















1973
.2
.2
.2
.2
.2
.2
.2
.2
.2
.2
.2
.2
1.2
1.2
1.9
1.9
1.6
1.6
1.6















CALEIDAH YEAB - July 1
197 1975 1976 1977
.2
.2
.2
.2
.2
.2
.2
.2
.2
.2
.2
1.2
1.2
1.9
1.9
1.6
1.6
1.6
3.6














1*
I
I
t
1
ll2| 1
1.2| 1
1.2| 1
1.2| 1
1.2| 1
1.21 1
.2| 1
1.2| 1
.2f it
4.2f 1
1.2| 1
4.9| 1
4. 9J U
1.6| 1
4.61 H
1.6f 
3.6| 3
34, t t
,b 1 J

1
1
1
I
J
;
f
I
t
1
I
1
.2
.2
.2
.2
.2
.2
.2
.2
.2
.2
.2
.9
.9
.6
.6
.6
.6
*













1.2
1.2
1.2
.2
.2
.2
.2
.2
1.2
1.2
1.9
1.9
1.6
1.6
1.6
3.6

3.6












1978

1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.9
1.9
1.6
1.6
1,6
3.6

3.6












1979


1.2
1.2
1.2
1.2
1.2
1.2
H.2
1.2
1.9
1.9
1.6
1.6
1.6
3r
 D
3.6

3.6












1980



1.2
1.2
1.2
1.2
1 2
1.2
1.2
1.9
1.9
1.6
1.6
1.6
3f
*>
3.6

3.6
1.9
1.8










1981




1.2
1.2
1.2
1.2
1.2
1.2
U.9
4.9
1S6
1,6
1.6
3C
,b
3.6

3.6
2.1
1.9
1.8









  *E1SSI01I FACTOBS  FOB  VEHICLES THBOOGH HODE1  JEAB  1975 AID fHHQUf:fc
   CAIEMDAB YEAR  1975  ABE BASED Oil ACTUAL TESTS OF  IK-USE fEHICLES*
   POST-1975 CALEHDAB  YEAB EHISSIOM FACTOBS FOB ALL  VEHICLES JIBE PSOJECTS&.

-------
                   TABLE XI-1   (FOB  CILEHDAB TEARS  1982-1^93)

SID-YEAR EIHAOST ERISSIOB FACTORS FOE ilGHT-DOTf ISBCKSt  BOTH WEIGHT CATliSOBlES
                            IITEOGEB OXIDES (6H/RI)
               F08 ALL REGIOIS  EICEPT CALIFORBIA AMD  HIGH-ftLTITUDE
ffiODELf
{TEAS |
I1963J
119611
I 19651
19661
119671
|1968|
|1969|
1970|
11972!
J 1973J
| 1971 j
19751
|197fef
19771
J197EI
| 1979|
&1980J
f 198 If
|19&2j
f 1983|
19811
i* ei d c *
 -JF O ^ I
J1986J
I1987J
|1988I
|1989|
1990{
19911
|1992J
119931
1982
1.2
ll2
1^9
1.9
H.6
1.6
1.6
3.6
3.6
3.6
3.6
3.6
3.6
2.3
2.1
1.9
1.8











1983
tl'.2
1.2
1.2
0.9
1.9
1.6
3.6
3.6
3.6
3.6
3.6
3.6
2.1
2.3
2.1
1.9
1.8










198ft
1.2
1^9
1.9
1.6
1.6
1.6
3.6
3S6
3.6
3.6
3.6
3.6
2.5
2aH
2.3
2.1
1.9
1.8









1985
1.2
.2
.9
.9
.6
.6
.6
3.6
3,6
3.6
3.6
3.6
3.6
2.6
2.5
2 fit
 "
2.3
2.1
1.9
O.f








CALEKDAR j
1986 198?
ft. 2
U.9
1.9

-------
                                  TABLE 1I-2A

     HID-TEAS EIHAUST  ERISSIOR FACTORS FOB LIGHT-OUT! GAS TRUCKS < 6000 IBS.
                            HYDKOCARBOIS  (GB/RI)
            FOB  ILL  REGIONS EXCEPT CALIFORIIA AID  HIGH-ALTITODE
fRODEL
|1FAH
 j-
119511
| 1S52|
|1953|
1 1951 1
I1955J
I95fc
119571
|1958 I
|1959f
|19(0|
|196 If
|1Sfc2j
J1963!
|196|
11-9651
|1Sfe6|
119671
|196Sf
|1969|
|1970J
| 19711
J1S72I
|1973|
|19?S j
|1975|
|t976|
|1977J
| 19/8|
|1979|
|1980f
|i9ei|
I 19621
f 1983|
! 1981 1
11985 I
f 1986f
19871
| 1988|
|1989f
19901
I
[1970
t1.2
14.0
137
13. *
13.1
12.8
12.5
12.1
11.7
11.3
10*9
10. 1
9.9
9.3
8.7
8,0
7.2
1.3
3.5
2,7




















1971
11.2
ia.0
13.7
13.1
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10. t
9.9
9.3
8.7
8.0
5.0
.3
3.5
2.7












,






1972
U.2
W.O
13.7
13. <*
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10. 
9.9
9.3
8.7
5.7
5.0
1.3
3.5
2.7


















1973
W.2
1*.0
13.7
13. 
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10.1
9.9
9.3
6.3
5.7
5.0
1.3
3.5
2.7

















CALEIDAI TEAE - July 1
1971 1975 1976 1977
11.2
11.0
13.7
13.1
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10.1
9.9
6.9
6.3
5.7
5.0
1.3
3.5
2.7
















11.2
11.0
13.7
13.1
13.1
12.8
12.5
12.1
11.7
11.3
10.9
10.1
7.1
6.9
6.3
5.7
5.0
1.3
3.5
1.1
















11.2
11.0
13.7
13.1
13.1
12.8
12.5
12.1
11.7
11.3
10.9
7.9
7.1
6.9
6.3
5.7
5.0
1.3
1.9
1.1














11.2
11.0
13.7
13.1
13.1
12.8
12.5
12.1
11.7
11.3
8.3
7.9
7.1
6.9
6.3
5.7
5.0
2.5
1.9
1.1













1978

11.2
11.0
13.7
13.1
13.1
12.8
12.5
12.1
11.7
8.7
8.3
7.9
7.1
6.9
6.3
5.7
3.1
2.5
1.9
1.1












1979


11.2
11.0
13.7
13. 
13.1
12.8
12.5
12.1
9.1
8.7
8.3
7.9
7.1
6.9
6.3
3.6
3.1
2.5
1.9
1.2











1980



11.2
11.0
13.7
13.1
13.1
12.8
12.5
9.1
9.1
8.7
8.3
7.9
7.1
6.9
1.1
3.6
3.1
2.5
1.7
1.2










1981




11.2
14.0
13.7
13.1
13.1
12.8
9.8
9.1
9.1
8.7
8.3
7.9
7.1
1.6
1.1
3.6
3.1
2.3
1.7
1.2









#EI!ISSIOI FACTORS  FOB  VEHICLES THROUGH RODEL TEAR  1975  AID THROUGH
 CALBAB IEAB  1975  ABE  BASED 01 ACTUAL TESTS OF II-USE VEHICLES.
 POST-1975 CALERDAB  TEAR EHISSIOf FACTOBS FOB ALL  VEHICLES ABE PBOJECTED.

-------
                 TABU 11-21  (FOR CALEKDAR  YEARS 1982-1993}

     BID-TEAR EXHAUST EHISSIOI FACTORS FOR  LIGHT-DUTY GAS TRUCKS  <  6000 IBS,
                            HYDSOCARBORS  (GH/HI)
            FOB  ALL  BEGJOHS EXCEPT CAIIF08IIA  AID HIGH-ALTITUDE
IHODELf
HEAR t
11963J
1196*1
119651
|1966|
I 1967|
| 1968|
J1969I
I 1970f
|1971|
|1972|
J1973J
f 1974|
119751
1 19761
|1977|
119781
I1979|
11980J
f 19811
|1982|
119831
11984 [
I1985J
1 1986|
119871
{19881
ilOAQ 1
Itoy |
119901
11991|
|1992|
|1993|
1982
14.2
14.0
13.7
13.4
13. t
10.1
9.8
9.4
9.1
8.7
8.3
7.9
5.0
4.6
4.1
3.6
2.9
2.3
1.7
1.2










1983
U. 2
14.0
13.7
t3.4
10.4
10.1
9.8
9.4
9.1
8.7
8.3
5.3
5.0
4.6
4.1
3.4
2.9
2.3
1.7
0.4









1984
14.2
14.0
13.7
10.6
10.4
10.1
9.8
9.4
9.1
8.7
5.7
5.3
5.0
4.6
3.9
3.4
2.9
2.3
0.8
0.4








1985
14.2
14.0
10.9
10.6
10.4
10. t
9.8
9.4
9. 1
6.0
5.7
5.3
5.0
4.4
3.9
3.4
2.9
1.1
0.8
0.4







C&LEIDAR YEAR - July t
1986 1987 1988 1989
14.2
11.1
10.9
10.6
10.4
10.1
9.8
9.4
6.3
6.0
5.7
5.3
4.8
4.4
3.9
3.4
1.4
1.1
0.8
0.4






11.4
11.1
10.9
10.6
10.4
10.1
9.8
6.5
6.3
6.0
5.7
5.2
4.8
4.4
3.9
1.7
1.4
1.1
0.8
0.4





11.4
11.1
10.9
10.6
10.4
10.1
6.8
6.5
6.3
6.0
5.5
5.2
4.8
4.4
2.0
1.7
1.4
1.1
0.8
0.4




11.4
11.1
10.9
10.6
10.4
7.0
6.8
6.5
6.3
5.8
5.5
5.2
4.8
2.2
2.0
1.7
1.4
1.1
0.8
Ott
.*



1990

11.4
11.1
10.9
10.6
7.2
7.0
6.8
6.5
6.1
5.8
5.5
5.2
2.5
2.2
2.0
1.7
1.4
1.1
On
.0
0.4



1991


11.4
11.1
10.9
7.4
7.2
7.0
6.8
6.4
6.1
5.8
5.5
2.7
2.5
2.2
2.0
1.7
1.4
0.8
0.4


1992



11.*
11.1
7.6
7.4
7.2
7.0
6.6
6.4
6.1
5.8
2.9
2.7
2.5
2.2
2.0
1.7
1.1
0.8
0.4

1993




11.4
?B8
7.6
J.H
7.2
6.8
6.6
6.4
6.1
3S0
2.9
2.7
2B5
2.2
2.0
1.4
1.1
Oe8
0.4
*EMISSIOB FACTORS  FOB VEHICLES THROUGH  HODEL YEAS 1975 AND THBOOGH
 CALERDAR YEAR  1975 ARE BASED 01 ACTUAL TESTS OF IK-USE VEHICLES.
 POST-1975 CALEIDAB YEAB E8ISSIOR FACTORS  FOR ALL VEHICLES ABE  PROJECTED.

-------
                                  TABLE II-3A

     BID-TEAR EIHAUST  E1ISS10I FACTORS FOR LIGHT-DDTI GAS TRUCES < 6000 LBS.
                          CAIBOI HOROIIDE  (GB/fllJ
            FOB  ALL  REGIORS EXCEPT CALIFORNIA AID  HIGH-ALTITUDE
HOBJEl
TEAR
19Slf
1952|
1953|
19SI|
19551
1956J
1957|
T958|
1959J
I960!
1961|
1962|
1963J
1964|
1965|
19661
1967|
f968f
1969f
19701
197Tf
I972|
19731
1974|
T975|
1S76I
1977J
19781
1979|
1980|
1981J
1982S
1983J
1984 t
1985r
986|
1987|
19881
19891
19901
I
11970
119.9
118.5
117.1
115.6
114.0
112.4
110.6
108.7
106.7
104.7
102.4
99.9
97.1
94.0
90.6
87.0
83.0
52.3
43.2
34.8




















1971
119.9
118.5
117.1
115.6
114.0
112.4
110.6
108.7
106.7
104.7
102.4
99.9
97.1
94.0
90.6
87.0
60.8
52.3
43.2
34.8



















1972
119.9
118.5
117.1
115.6
114.0
112.4
110.6
108.7
106.7
104.7
102.4
99.9
97.1
94.0
90.6
68.7
60.8
52.3
43.2
34.8


















1973
119.9
118.5
117.1
115.6
114.0
112.4
110.6
108.7
106.7
104.7
102.4
99.9
97.1
94.0
76.0
68.7
60.8
52.3
43.2
34.8

















CALEIDAR TEAR - July t
1974 1975 1976 1977
119.9
118.5
117.1
115.6
114.0
112.4
110.6
108.7
106.7
104.7
102.4
99.9
97.1
82.8
76.0
68.7
60.8
52.3
43.2
34.8
















1*
1
t
1
f
119.91
118.5|119.9
117.1|118.5
115.6|117.1
114.0|115.6
112.4| 114.0
110.6|112.4
108.7|110.6
106. 7f 108.7
104. 7f 106.7
102.4|104.7
99.9|102.4
89.0( 94.7
82.81 89.0
76.0| 82.8
68.7| 76.0
60.8| 68.7
52.31 60.8
43.2| 52.3
19.3J 26.6
1 19.3
1
1
t
1
I
1
1
1
t
1
1
1
1
1
119.9
118.5
117.1
115.6
114.0
112.4
110.6
108.7
106.7
104.7
99.8
94.7
89.0
82.8
76.0
68.7
60.8
34.5
26.6
19.3













1978

119.9
118.5
117.1
115.6
114,0
112.4
110.6
108.7
106.7
104.3
99.8
94.7
89.0
82.8
76.0
68.7
41.8
34.5
26.6
19.3












1979


119.9
118.5
117.1
115,6
114.0
112.4
110.6
108.7
108.4
104.3
99.8
94.7
89.0
82.8
76.0
48.7
41.8
34.5
26.6
17.7











1980



119.9
118.5
117.1
115.6
114.0
112.4
110.6
112.4
108.4
104.3
99.8
94.7
89.0
82.8
55.1
48.7
41.8
34.5
25.0
17.7










1981




119.9
118.5
117.1
115,6
114.0
112.4
116.2
112.4
108.4
104.3
99.8
94.7
89.0
61.0
55.1
48.7
4 1.8
32.9
25.0
17.7









*HISSIOI FACTORS  FOR  VEHICLES THROUGH RODEL TEAR  1975  AID THIOOGH
 CALENDAR TEAR  1975  ARE BASED 01 ACTUAL TESTS OF II-DSE VEHICLES.
 POST-1975 CALEWDA8  TEAR EHISSIOW FACTORS FOR ALL  VEHICLES ARE PROJECTED.

-------
                 TABLE  II-3H  (FOR CALEIDAB  YEARS 1962-1993}

     BID-YEAB EIHAUST  ERISSIOM FACTORS  FOR  LIGHT-DOT! GAS TBUCKS  < 6000 IBS.
                          CARBOM HOMOXIDE  (GB/BIJ
            FOB  All  BEG10MS EXCEPT CALIFORNIA  AMD BIGB-ALTITUDE
IHODEL
(TEAR
Ift
I
[1982
_ __|
|19fc3j 119.9
J1964| 118.5
|1965f 117.1
J*Oir 1 IS t t
J j O O a 1 I w M v
|1967|114.0
J1968J 119.7
f 1969f 116.2
I1970J 112.4
J1971J 108.4
1983
119.9
118.5
117.1
115.6
123.1
116^2
112,4
I1972J104.3 108J
J1973J
|1974|
| 1975f
|1976|
|1977|
I1978J
| 1979|
| 1960|
f1961f
f 1982|
f 19831
1 1984 |
| 19851
|1986|
|1987|
|1988|
| 1989J
|1990|
| 199 1 |
|1992|
f 1993|
99.8
5*1.1
66. 
fc 1.0
55.1
48.7
40.2
32.9
25.0
17.7











104.3
99.8
T1.3
66.4
6 1.0
55.1
47.1
40.2
32.9
25.0
5.1










1984
119.9
118.5
117.1
126.2
123.1
119.7
116.2
112.4
108.4
104.3
75B7
71,3
66.4
61.0
53.5
47.1
40.2
32.9
7.8
5.1









1985
119.9
118.5
129.2
126.2
123.1
119.7
116.2
112.4
108.4
79.6
75.7
71.3
66.4
59.4
53.5
47.1
40.2
10.7
7.8
5.1








CALEIDAB TEAR ~ Julj 1
1986 1987 1988 1989
119.9
132.1
129.2
126.2
123.1
119.7
116.2
112.4
83.2
79.6
75.7
71.3
64.8
59.4
53.5
47.1
13.5
10.7
7.8
5.1







134.8
132.1
129.2
126.2
123.1
119.7
116.2
86.7
83.2
79.6
75.7
69.7
64.8
59.4
53.5
16.1
13.5
10.7
7.8
5.1






134.8
132.1
129.2
126.2
123. 1
119.7
89.9
86.7
83.2
79.6
74.1
69.7
64.8
59.4
18.5
16.1
13.5
10.7
7.8
5.1





134.8
132.1
129.2
126.2
123.1
93.0
89.9
86.7
83.2
78.0
74.1
69.7
64.8
20.7
18.5
16.1
t3.5
10.7
7.8
5.1




1990
134.8
132.1
129.2
126.2
95.9
93.0
89.9
86.7
61.6
78.0
74.1
69.7
22.7
20.7
18.5
16. 1
13.5
10.7
I, .8
5,, 1



1991

134.8
132.1
129.2
98.6
95.9
93.0
89.9
85.1
81.6
78.0
74.1
24.5
22.7
20.7
18.5
16.1
13.5
10.7
7.8
5. f


1992


134.8
132.1
101.3
98.6
95.9
93.0
68.3
85.1
81.6
78.0
26.2
24.5
22.7
20.7
18.5
16.1
13.5
10.7
7.8
5.1

1993



134.8
103.7
101.3
98.6
95.9
91.4
88.3
85.1
81.6
27.7
26.2
24.5
22.7
20.7
18.5
16,1
13.5
10.7
7.8
5.1
*R1S5IOB FACTORS  FOR VEHICLES THROUGH  MODEL TEAR 1975 AID THROUGH
 CA1ENDAR TEAR  1975 ABE BASED OR ACTUAL TESTS Of II-DSS fEBIClES.
 POST-1975 CA1ERDAB TEAR EHISSIOR FACTORS FOR ALL VEHICLES IRE  PROJECTED.

-------
                                   TABLE  II-1A

     FID-YEAR EXHAUST EHISSIOI FACTORS  FOR LIGHT-DUTY  GAS TRUCKS <  6000 LBS,
                           SITHOGEN OXIDES (GH/fll)
             FOB ALL REGIONS EXCEPT CALIFORNIA AND HIGH-ALTITUDE
PODELl
YEAR |

195 1 1
19521
1953|
1951 |
1955J
1956|
1957J
19581
1959|
1960J
mi 
 1
19fc2|
19f 3 {
1961 |
1966|
1967|
1968J
1969J
1970|
1971|
1972|
1973|
1971 1
1975|
1976J
1977J
197P|
1979f
1980J
196 1|
19821
1983|
19811
19851
1987j
19P8|
1989 J
1990(
1970

3.6
3,6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
34
.0
3.6
3.6
3.6
3
t>
3.6
3.6
1.1
1.1
1.1



















1971


3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3f
.*>
3.6
3.6
3.6
3t
.0
3.6
3.6
1.1
1.1
1.1
1.1


















1972



3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3r
.6
3.6
3.6
3.6
3
."
3.6
3.6
1.1
1,1
1.1
1.4
1.1

















1973




3.6
3.6
3.6
3.6
3.6
3.6
3.6
3*
WD
3.6
3.6
3.6
34,
 **
3.6
3.6
1.1
1.1
*.1
l .1
1 .1
3.0
















CALENDAR YEAR - July 1
1971 1975 1976 1977





3.6
3.6
3.6
3.6
3.6
3.6
3r
WO
3.6
3.6
3.6
31
. fc
3.6
3.6
1 .1
1.1
1 .1
1.1
1.1
3.0
3.0





















3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3r
. b
3.6
3.6
H.I
1.1
|| tl
| ft
i!i
3.0
3.0
2.1














*





3.6
3.6 3.6
3.6 3.6
3.6 3.6
3.6 3.6
3.6 3.6
3.6 3.6
3.6 3.6
3.6 3.6
1.1 1.1
L It tl ti
M . M f . 
1.1 1 .1
1.1 1 .1
tl tl ll tl
f *  H . H
3.0 3.0
3.0 3.0
2.1 2.1
2.1 2.1
2.1












1978









3.6
3.6
3.6
3.6
3.6
3.6
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
2.1
2.1
2.1
2.1











1979










3.6
3.6
3.6
3.6
3.6
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
2.1
2.1
2.1
2.1
1.8










1980










3i
.*>
3.6
3.6
3.6
3C
*t>
3.6
3.6
1.1
1.1
1.1
1,1
1.1
3.0
3.0
2.1
2.1
2.1
2.1
1.9
1.8









1981











3.6
3.6
3.6
3t
.*>
3.6
3.6
1.1
1.1
1.1
1.1
1.1
3.0
3.0
2.1
2.1
2.1
2.1
2.1
1.9
1.8








*EF1SSIO  FACTORS FOR  VEHICLES THROUGH  rtODEL YEAR  1975  AHD THROUGH
 CALFKDAR  YEAR 1975 ARE  BASED OH ACTUAL TESTS OF IH-USE VEHICLES.
 POST-1975 CALENDAR YEAR  EHISSIOK FACTOKS FOR ALL  VEHICLES ARE PROJECTED.

-------
                 TABLE  II-KA  (FOR CALEHDAR  YEARS 1982-1993)

     FID-YEAR EXHAUST  EBISSIO* FACTORS  FOR  LIGHT-DUTY GAS TRUCKS  <  6000 LBS,
                          X1TROGEM OXIDES  (GK/HI)
            FOR  ALL  REGIOHS EXCEPT CALIFOBDIA  AHD HIGH-ALT1TDDE
inocFLi
YEAR |
1963|
1964|
1965|
1966|
1967|
19fc8|
1969|
1970|
1971|
1972)
1973|
1974 J
1975|
1976|
1977|
1978f
1979|
1980 I
1981|
1982|
1983J
1984J
19B5|
T986J
1987f
T988r
1989J
1990|
1991|
1992J
1993|
1982
3.6
3.6
3.6
3.6
3.6
4.4
4.4
4.4
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
2.3
2.1
1.9
1.8











1983
3.6
3.6
3.6
3.6
4.4
4.4
4.4
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
2.4
2.3
2.1
1.9
1.8










198l
3.6
3.6
3.6
4.4
4.4
4.4
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
2.5
2.4
2.3
2.1
1.9
1.8









1985
3.6
3.6
4.
4. a
4.
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.
2.7
2.5
2.4
2.3
2.1
1.9
0.5








CALEWDAR YEAR - July 1
1986 1987 1988 1989
3.6
4.4
4.4
4.4
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
2.8
2.7
2.5
2.4
2.3
2.1
0.8
0.5







4.4
4.4
4.4
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
2.9
2.8
2.7
2.5
2.4
2.3
1.2
0.8
0.5






4.4
4.4
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
3.0
2.9
2.8
2.7
2.5
2.4
1.5
1.2
0.8
0.5





4.4
4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
3.0
3.0
2.9
2.8
2.7
2.5
1.8
1.5
1.2
0.8
0.5




1990

4.4
4.4
3.0
3.0
2.4
2.4
2.4
2.4
3. 1
3.0
3.0
2.9
2.8
2.7
2.0
1.8
1.5
1.2
0.8
0.5



1991


4.4
3.0
3.0
2.4
2.4
2.4
2.4
3.2
3.1
3.0
3.0
2.9
2.8
2.3
2.0
1.8
1.5
1.2
0.8
0.5


1992



3.0
3.0
2.4
2.4
2.4
2.4
3.3
3.2
3.1
3.0
3.0
2.9
2.5
2.3
2.0
1.8
1.5
1.2
0.8
0.5

1993




3.0
2.4
2.4
2.4
2.4
3.3
3.3
3.2
3.1
3.0
3.0
2.7
2.5
2.3
2.0
1.8
1.5
1.2
0.8
0.5
*ERISSIOI FACTORS  FOR VEHICLES THROUGH  flODEL YEAR 1975 AMD  THROUGH
 CALENDAR YEAS  1975 ABE BASED ON ACTUAL TESTS OF IK-USE  VEHICLES.
 POST-1975 CALEMDAR YEAR EIUSSIOI FACTORS FOR ALL VEHICLES  ABE  PROJECTED.

-------
                                    TABLE  II-2B

   PIP-YEAR EXHAUST  EHISSION FACTORS  FOR LIGHT-DUTY  GAS TRUCKS  6001-8500 LBS,
                             HYDROCARBONS (GW/BI)
             FOB ALL  REGIONS EXCEPT  CALIFORNIA AND  HIGH-ALTITUDE
BOPEL
YEAR
1953|
195
-------
                 TABLE II-2B   (FOB CALENDAR YEAFS  1982-1993)

   IUE-YEAR  EXHAUST EHISSIOU  FACTORS FOF LIGHT-DUTY CIS TRUCKS  6001-6500 LBS,
                            HYDROCARBONS  (Gfl/HI)
             FOR  ALL REGIONS  EXCEPT CALIFORNIA  AUD HIGH-ALIITUDE
IPOPFLI
fYEAF |
?9fc3f
19t1|
1965J
19fc6|
19fc7|
1968|
1969|
19701
1971J
1972J
19731
1971J
1975J
19761
1977J
1978|
1979J
1980|
19fc1|
19B2I
1963|
1961|
1965J
19861
1987f
19681
1989|
1990|
19911
19921
19931
1982
15.6
15.3
15.0
11.8
11.5
ia.1
13.8
9.7
9.1
9.0
8.6
8.2
7.7
7.2
6.7
6.1
2.9
2.1
1.7
1.2











1983
15.6
15.3
15.0
11.8
ii.s
11.1
10.0
9.7
9.14
9.0
8.6
8.2
7.7
7.2
6.7
3.1
2.9
2.1
1.7
0.1










198 H
15.6
IS. 3
15.0
11.8
1ft. 5
10.3
10.0
9.7
9.1
9.0
8.6
8.2
7.7
7.2
3.9
3.1
2.9
2.1
0.8
o.u









1985
15.6
15.3
T5.0
n.e
10.6
10.3
10.0
9.7
9.1
9.0
8.6
8.2
7.7
1.3
3.9
3.1
2.9
1.1
0.8
0.1








CALEH
T986
15.6
15.3
15.0
10.9
10.6
10.3
10.0
9.7
9.1
9.0
8.6
8.2
1.7
1.3
3.9
3.1
1.1
1.1
0.8
0.1





'

DAB YEAH - July 1
1987 1988 1969
15.6
15.3
11.2
10.9
10.6
10.3
10.0
9.7
9.1
9.0
8.6
5.0
1.7
1.3
3.9
1.7
1.1
1.1
0.8
0.1






15.6
11.1
11.2
10.9
10.6
10.3
10.0
9.7
9.1
9.0
5.3
5.0
1.7
1.3
2.0
1.7
1.1
1.1
0.8
0.1





11.6
11.1
11.2
10.9
10.6
10.3
10.0
9.7
9.1
5.6
5.3
5.0
1.7
2.2
2.0
1.7
1.1
1.1
0.8
0.1




1990

11.6
11.1
11.2
10.9
10.6
10.3
10.0
9.7
5.9
5.6
5.3
5.0
2.1
2.2
2.0
1.7
1.1
1.1
0.8
0.1



1991


11.6
11.1
11.2
10.9
10.6
10.3
10.0
6.2
5.9
5.6
5.3
2.6
2.1
2.2
2.0
1.7
t.1
1.1
0.8
0.1


1992



11.6
11.1
11.2
10.9
10.6
10.3
6.5
6.2
5.9
5.6
2.8
2.6
2.1
2.2
2.0
1.7
1.1
1.1
0.8
0.*

1993




11 .6
11.1
11.2
10.9
10.6
6.7
6.5
6.2
5.9
3.0
2.8
2.6
2.1
2.2
2.0
1.7
1.1
1.1
0.8
0.1
*EniSSlOM  FACTORS FOR VEHICLES  THROUGH fiODUL  YEAR 1975 AD  THROUGH
 CALENDAR  YEAR 1975 ARE BASED  OH ACTUAL TESTS OF Ii-OSE VEHICLES.
 POST-1975 CALENDAR YEAH  EBISSIOH FACTORS  FOB ALL VEHICLES  ARE PROJECTED.

-------
                                   TABLE 11-3B

   KID-YEAR  EIHAOST EfllSSIOM  FACTORS FOB LIGHT-DOTY  GAS TBDCKS 6001-8500 LBS,
                          CARBON  HOIOXIDE (GR/HI)
             FOB ALL RECIOHS E1CEPT CALIFORM1A  AMD HIGH-ALTITUDE
(HODELf
(YEAR (1970
(1951(129.2
| 1952( 127.8
(1953( 126.4
(1954(124.9
(1955(123.3
(1956(121.7
(1957(119.9
(1958J 118.0
(1959(116.0
(1960(113.8
(1961(111.6
( 1962| 109.2
(1963| 106.6
(1964(103.8
|1965| 100.7
(1966J 97.3
|1967( 93.6
| 1968| 89.4
(1969| 84.7
| 1970| 36.0
( 1971|
(1972|
(1973(
|1974(
I1975J
(1976J
(1977(
| 1978J
f 1979(
( 1980|
( 1981|
f 1982(
( 1963(
| 1984|
| 1985|
I 1986|
(19871
(1988(
I 1989(
( 1990(
1971
129.2
127.8
126.4
124.9
123.3
121.7
1T9.9
118.0
116.0
113.8
111.6
109.2
106.6
103.8
100.7
97.3
93.6
89.4
44.5
36.0



















1972
129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
111.6
109.2
106.6
103.8
100.7
97.3
93.6
53.8
44.5
36.0


















1973
129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
111.6
109.2
106.6
103.8
100.7
97.3
62.3
53.8
44.5
36.0

















CALEIDAR YEAR - July 1
1974 1975 1976 1977
129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
111.6
109.2
106.6
103.8
100.7
69.8
62.3
53.8
44.5
36.0
















129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
111.6
109.2
106.6
103.8
76.6
69.8
62.3
53.8
44.5
36.0
















129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
111.6
109.2
106.6
82.8
76.6
69.8
62.3
53.8
44.5
36.0














129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
111.6
109.2
88.4
82.8
76.6
69.8
62.3
53.8
44.5
36.0













1978

129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
111.6
93.6
88.4
82.8
76.6
69.8
62.3
53.8
44.5
36.0












1979


129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
113.8
98.5
93.6
88.4
82.8
76.6
69.8
62.3
53.8
44.5
17.6











1980



129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
116.0
103.0
98.5
93.6
88.4
82.8
76.6
69.8
62.3
53.8
25.0
17.6










1981




129.2
127.8
126.4
124.9
123.3
121.7
119.9
118.0
107.3
103.0
98.5
93.6
88.4
82.8
76.6
69.8
62.3
33.1
25.0
17.6









*EBISSIOM  FACTORS FOR VEHICLES  THROUGH RODEL TEAB  1975 AMD THROUGH
 CALEIDAR  TEAR  1975 ARE BASED OM ACTUAL TESTS OF  1M-USE VEHICLES.
 POST-1975 CALEMDAR TEAR EHISSIOM FACTORS FOR ALL  VEHICLES ARE PROJECTED.

-------
                 TABLE II-3B   (FO^  CftLEHDAR YEARS  1982-1993)

   BID-TEAR  EXHAUST EHISSIOI  FACTORS FOR LIGHT-DUTT  GAS TIOCKS 6001-8500 IBS,
                          CARBON  310HOXIDI (GW/HI)
             FOR  ALL REGIOMS EICEPT CALIFOHSIA AMD  HIGH-ALTITUDE
rtODEL
TEAR
1963J
1964J
196SJ
19661
1967f
1968|
1969
t970|
1971J
1972J
19731
197*1 1
1975J
1976f
1977J
1978f
1979f
1980|
1981J
1982f
1983|
1984|
1985|
1986|
19871
19881
1989 J
1990(
1991J
1992J
1993|
1
11982
129.2
127.8
126. 
124.9
123.3
121.7
119.9
111.3
107.3
103.0
98.5
93.6
88. ft
82.8
76.6
69.8
40.5
33.1
25.0
17.6











1983
129.2
127.8
126. 4
124.9
123.3
121.7
115.2
111.3
107.3
103.0
98.5
93.6
88. <4
82.8
76.6
47.0
110.5
33.1
25.0
5.0










1984
129.2
127.8
126. 4
124.9
123.3
118.8
115.2
111.3
107.3
103. 0
98.5
93.6
88.it
82.8
52.9
47.0
HO. 5
33.1
7.8
5.0









1985
129.2
127.8
126. 4
124.9
122.1
118.8
115.2
111.3
107.3
103.0
98.5
93.6
88.4
58.2
52.9
47.0
40.5
10.8
7.8
5.0








CALEMDAR TEAR - July 1
1986 1987 1988 1989
129.2
127.8
126.4
125.3
122.1
118.8
115.2
111.3
107.3
103.0
98.5
93.6
63.2
58.2
52.9
17.0
13.6
10.8
7.8
5.0







129.2
127.8
128.3
125.3
122.1
118.8
115.2
111.3
107.3
103.0
98.5
67.7
63.2
58.2
52.9
16.0
13.6
10.8
7.8
5.0






129.2
131.2
128.3
125.3
122. 1
118.8
115.2
111.3
107.3
103.0
71.9
67.7
63.2
58.2
1B.3
16.0
13.6
10.8
7.8
5.0





133.8
131.2
128.3
125.3
122.1
118 .8
115.2
111.3
107.3
75.8
71.9
67.7
63.2
20.3
T8.3
16.0
13.6
10.8
7.8
5.0




1990

133.8
131.2
128.3
125.3
122. 1
118.8
115.2
111.3
79.6
75.8
71.9
67.7
22.1
20.3
18.3
16.0
13.6
10.8
7.8
5.0



1991


133.8
131.2
128.3
125.3
122.1
118.8
115.2
83.0
79.6
75.8
71.9
23.8
22.1
20.3
18.3
16.0
13.6
10.8
7.8
5.0


1992



133.8
131.2
128.3
125.3
122.1
118.8
86.0
83.0
79.6
75.8
25. 4
23.8
22.1
20.3
18.3
16.0
13.6
10.8
7.8
5.0

1993




133.8
131.2
128.3
125.3
122.1
89.5
86.4
83.0
79.6
26.8
25.4
23.8
22.1
20.3
18.3
16.0
13.6
10.8
7.8
5.0
*EH1SSIOW  FACTORS FOR VEHICLES  THROUGH MODEL TEAR  1975 AND THROUGH
 CALENDAR  TEAS  1975 ARE BASED 01  ACTUAL TESTS OF  IX-USE VEHICLES.
 POST-1975 CA1EMDAB TEAR EHISSIOM FACTORS FOR Ail  VEHICLES AIE  PROJECTED.

-------
                                    TABLE II-HB

   filf-YEAR E1HAUST  EMISSION FACTOKS  FOR LIGHT-DUTY GAS TRUCKS  6001-8500  LbS,
                           NITROGEI  OXIDES (GH/ni)
             FOR ALL  REGIONS EXCEPT CALIFORNIA  AND  HIGH-ALTITUDE
rODFLJ
TEAR |
1951|
1952J
19531
1956 t
1955|
195t I
1957}
1956|
1 QS. O t
1 j _> ;? 1
19601
1961}
1962|
1963|
19fc*i J
1965 t
1966|
1967J
Iog, o i
"t> :? 1
19701
1971|
1972J
1973J
197ft |
1975|
197fc |
1977|
1978J
1979 j
196C|
1981|
1982J
19B3J
1986(
1987|
19B8f
19B9J
1990|
1970
6.5
6.5
6 .5
6.5
6.5
6.5
6.5
6.5
6tt
* D-
*^ * ^
O *. J
6.5
6.5
6.S
6.5
6.5
6.5
6.5
6C
* ~>
5.0


















1971

6.5
6.5
6.5
6.5
6.5
6.5
6.5
6t
, j
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6
 ^
5.0
5.0

















1972


6.S
6.5
6.5
6.5
6.5
6.5
6t
 J
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
61t
* -*
5.0
5.0
5.0
















1973



6.5
6.5
6.5
C> ,5
6^
. j
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6C
* ->
5.0
5.0
5.0
5.0















CALF.HDAfc YEAR - Jul
1974 1975 1976 1




6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
5.0
5.0
5.0
5.0
5.0



















b.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
5.0
5.0
5.0
5.0
5.0
5.0













*





6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
5.0
5.0
5.0
5.0
5.0
5.0
5.0


.









y i
977







6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0











1978
b







be
. J
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
* 3
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0










1979








6.5
6.5
6.5
6.5
b.5
6.5
6.5
6.5
6.5
6
5.0
5.0
b.O
5.0
5.0
5.0
5.0
5.0
5.0
1.8









1980









6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6C
 ->
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
1*9
1.8








1981










6.5
6.5
6.5
6.5
6.5
6.5
6.5
6c
 ->
5.0
5.0
b.O
5.0
5.0
5.0
5.0
5.0
5.0
2.1
1.9
1.8







*F'ISSIQN  FACTORS FOR  VEHICLES THROUGH  flODEL YEAR  1975 AHD THBOUGH
 CAIFHDA8  TEAR 1975 ARE  BASED OH  ACTUAL TESTS OF  1M-USE VEHICLES.
 POST-1975 CA1EMDAR YEAR EMISSION  FACTORS FOR ALL  VEHICLES ABE  PROJECTED.

-------
                 TABLE II-'JH   (FOR CAiESDAH  YEARS  1982-1993)
   KIT-YEAR  EXHAUST EMISSION  FACTORS FOF  LIGHT-DUTY  GAS TRUCKS b001-8bi>0 LBS,
                           




6.5
6.5
6.5
6.5
5.0
5.0
5.3
5.0
5.0
5.0
5.0
5.0
5.0
2.fc
2.5
2.14
2.3
2.1
1.9
0.5








CALENDAR YEAR - Jul
1986 1987 1988 1





6.5
6.5
6.5
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
2.7
2.6
2.5
2.M
2.3
2.1
0.8
0.5













6.5
6.5
5.0
5.0
5.0
5.0
5.0
b.O
5.0
5.0
5.0
2.8
2.7
2.6
2.5
2.U
2.3
1.2
o.e
0.5













6.5
5.0
5.0
5.0
5.0
5.0
b.O
5.0
5.0
5.0
2.9
2.8
2.7
2.6
2.5
2. ft
1.5
1.2
0.8
0.5





y i
989








5.0
s.o
5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.0
2.9
2.8
2.7
2.6
2.5
1.7
1.5
1.2
0.8
0.5




1990









5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.1
3.0
2,9
2.8
2.7
2.6
2.0
1.7
1.5
1.2
0.8
0.5



1991










5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.1
3.1
3.0
2.9
2.8
2.7
2.2
2.0
U7
1.5
1.2
0.8
0.5


1992











5.0
5.0
5.0
5.0
5.0
5.0
3.2
3.1
3.1
3.0
2.9
2.8
2.1
2.2
2.0
1.7
'.5
U2
0.8
0.5

1993












5.0
5.0
5.0
5.0
5.0
3.3
3.2
3.1
3. 1
3.0
2.9
2.6
2.H
2.2
2.0
1.7
1.5
1.2
0.8
0.5
*IISSIOR  FACTORS FOR  VEHICLES THROUGH  B00EL YEAH  197b AID THROUGH
 CALENDAR  YEAR 1975 ARE  BASED OH ACTUAL TESTS OF  IM-USE VEHICLES.
 POST-1975 CALEMDAS TEAR  ERli-SlON FACTORS FOR ALL  VEHICLES ARE  PROJECTED.

-------
             TABLE II-5*

TRAVEL HEIGHTIRG FACTOR CALCULATION

 iIifiIlMllJiIS_T|IOCKS_<_600lD_LBS41,
Vehicle
Age
T
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Fraction Total
Registration
0~06 1~
0.095
0.094
0.103
0.083
0.076
0.076
0.063
O.OS4
0.043
0.036
0.024
0.030
0.028
0.026
0.024
0.022
0.020
0.018
0.016
Annual nileage
Accumulation Rate
15900
15000
14000
13100
12200
11300
10300
9400
8500
7600
6700
6600
6200
5900
5500
5100
5000
4700
4400
4400
                                  969.9
                                 1425.0
                                 1316.0
                                 1349.3
                                 1012.6
                                  858.8
                                  782.8
                                  592.2
                                  459.0
                                  326.8
                                  241.2
                                  158.4
                                  186.0
                                  165.2
                                  143.0
                                  122.4
                                  110.0
                                   94.0
                                   79.2
                          SOB:  10462.2
Travel Fraction
     0,093
     0. 136
     0.126
     0.129
     0.097
     0.082
     0.075
     0.057
     0.044
     0.031
     0.023
     0.015
     0.018
     0.016
     0.014
     0.012
     0.011
     0.009
     0.008
     0.007

-------
            TABLE II-5B




TRA1EL HEIGHT 116 FACTOR CALCULATION




LIGHT-DOTI GAS TBUCKS  6001-8SOO  IBS

Vehicle
. Age
1
2
3
4
5
6
7
8
9
10
11
12
13
14
?5
16
17
18
19
20


Fraction Total
Registration
" 0.037
0.070
0.078
0.086
0.075
0.075
0.075
0.068
0.059
0.053
0.044
0.032
0.038
0.036
0.034
0.032
0.030
0.028
0.026
0.024

(b)
Annual Rileage
Accumulation Rate
15700
15700
14100
12600
11300
10200
9400
8600
8000
7500
7100
6600
6300
6000
5500
5200
5000
4700
4400
4100
son:



.)*(b)/sun)
la 1*1^1 Travel Fraction
580.9
1099.0
1099 .8
1083.6
847.5
765.0
705.0
584.8
472.0
397.5
312.4
211.2
239.4
216.0
187.0
166.4
150.0
131.6
114.4
98 *t-
~?461.9
0.061
0. 116
0.116
0.115
0.090
0.081
0.075
0.062
0.050
0.042
0.033
0.022
0.025
0.023
0.020
0.018
0.016
0.014
0.012
0.010























-------
                       TABLE II-5C

                AVERAGE CUMULATIVE HILEAGE
                  BT VEHICLE AGE  - July  1
            LlgHT-POTir GJS THOCKS < 6QQO  LBS^

             Age  (Tears)  Cumulative Bileaqe

                   1              5962
                   2              19622
                   3              3*369
                   4              48147
                   5              6t022
                   6              72997
                   7              84044
                   8              94122
                   9             103297
                  TO             111571
                  11             1189*6
                  12             125646
                  13             132137
                  14             138265
                  15             144062
                  16             149462
                  17             154546
                  18             159465
                  19             164090
                  20             168499
The Methodology for calculating average  cumulative nileage
  is presented in Appendix G.

-------
                       TABLE 1I-5D

                AVERAGE CUflULATIVE HILEAGE
                  BT VEHICLE AGE - July 1
Age _Iears]_
1
2
3
a
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
Cumulative Bilea
5888
19625
3H875
18603
60884
71916
81925
91125
99581
107459
114862
121834
128365
140459
145890
151043
155965
160590
16M915
The methodology for calculating average cumulative  mileage
  is presented in Appendix G.

-------
                        TABLE II-6A

               General Foteula for Ripstvx

The general formula for the speed-temperature-hot/cold correction
factor, Ripstwx. for LIGHT-DUTY TRUCKS  (0~6K GVW) is given  by:

          Ripstvx =
                                 DEIIOH
where (using * for multiplication and exp for exponential  function) ;
                                       d*A)*{v{2.s1)/v(2,26))
       BAG1TERH =    w   * (exp (a-b*T)  c 
       BAG3TERB      x   *(             e *
       BAG2TERH *  (1--xJ*(             h *
       OEMOn      (dO + d1*A)

 - fraction of total miles which are driven in cold start condition
x = fraction of total miles which are driven in hot  start  condition
f - ambient temperature (F)
A - vehicle age minus 1, in years
g - index for model-year/region groups; see Table  I-6a
s1,s2,s3 = average speeds  (miles/hour) for bags 1, 2, and  3
v(g,si) = bag-specific speed correction factor; see  Appendix  B

and where:
  a ,b.c.d ,ef,h.j,dO, and dl are constant coefficients which  are
    functions of model-year group and pollutant, as  follows:
IPol
HC
HC
HC
HC
,_.
CO
CO
CO
CO
KOx
MOx
JBOx
IPOx
?
Egn

1
2
3
0
1
2
3
ft
- _
1
2
3

a | b
	
2.9310J.OU779
2.9310|.01779
2.339|.02359T
1.993*11.022269
5.65181.015965
5.65U8|. 015965
5. 5U60 1.028915
1.2391J.017522
 
-100. | 0.0
-100n | 0.0
-100. I 0.0
-TOO. I 0.0
j
c
.673
-2.11
.623
-.032
 H
-11.71
-33.89
11.291
-.20
1.11
1.16
3.26
3.05
f
f d
I .569
1 ,863|
,301|
.115
1 9.62
9.77|
1.21
6.99
o.o
0.0
.335!
.318|
.
e
1

1.75
2.13
1.11
.197
12.81
25.26
15.85
1.12
1.25
1.26
2.99
2.88
f
.393
.555
.281
.357
5.76
1.71
2.31
2.20
0.0
0.0
.181
.180*
h
5.69
2.61
1.05
.213
57.57
35.90
21.17
3.96
0.81
0.80
1.89
2.01
1
j | dO | d 1
.171J 5.67| .17
.597J 2.80C .61
,270| 1,381 .28
,17S| .511 .28
7.71J56.13I7.59
6.70J 36.10|6.79
3.13123.7013.11
2.12| 6.98J3.11
o.o t i.o i o.o
0.0 | 1.0 f 0.0
.1161 2.171 .18
,126| 2.161 .18
 . ,1

Eqa

1
2
3
1
Qsed for Rodel Tears:


For HC and CO | For 0x
Pce-1968
1968-1971
Post-1971
Hot Used
Pre-1968
1968-1971
Post-1971
Hot Used

-------
                             T1BLE II-6B

                    General Formula tor Ripstwx

     The general fotaula for the speed-teaperature-hot/cold correction
     factor, Hipstwx. for USHT-DUTY TBUCKS  (6-8.51 G) is given  by:
               Ripstwx
                                      DENOH
     if here (using * for Multiplication and exp for exponential  function? :
       BAG1TEBH =    w   *(exp(a-b*T) * c *
       BJkGSTERf!      x   *(             e +
       BJtG2TBH = (1-wx)*(             fa 
       DBMOfl    = (dO * dl**}
d*ft)*(v(2,sl)/v(2,26))
**)*{v(g,s3)/vfg,26})
}**}*< (9.s2)/v(g. 16)}
w = fraction of total Biles which are driven in cold start condition
x = fraction of total niles which are driven in hot start condition
T = anbient temperature (F)
A = vehicle age ninus T, in years
g = index for odel-vear/region groups; see Table I-6a
sl,s2,s3 = average speeds  (riles/hour) for bags 1, 2, and 3
v(g,si) = bag-specific speed correction factor; see Appendix  B

and where:
  a.b.c.d,e,f,h,j,dO, and dl are constant coefficients which  are
    functions of model-year group and pollutant, as follows:
Pol
HC
HC
HC
HC
CO
CO
CO
CO
ffOx
FOx
VOX
NOx
Eqn

1
2
3
D
1
2
3
9
 
1
2
3
4
a | fa I c
t > 1
|d|e
2.93101.0197791 .673| ,569| 9.75
2.9310|.019779| -2.91| .863| 2.93
2. 9339J .0235911 .623| .301| 1.11
1.993ft|.022269| -,032| .995| .197
5.6598t.015965f-l9.79
5.65981.0159651-33.89
5.5460|.02895| 11.29
9.23911.0175221 -.20
I
-100. | 0.0 | 1.1ft
-100. | 0.0 | 1.16
-100. f 0.0 | 3.26
-100. I 0.0 j 3.05
	 1 	 	 I 	 ._
i
| 9.62| 92.89
9.77| 25.26
| 9.291 15.85
6.991 9.12
0.0 | 1.25
0.0 J 1.26
.335| 2.99
.318| 2.88
1 	 1 	
1 1 h
.393f 5.69
.555| 2.61
.289| 1.05
.357| .293
5.76( 57.57
9.71| 35.90
2.39| 21.17
2.20| 3.96
0.0 | 0.81
0.0 | 0.80
.189| 1.89
.1801 2.01
j \ dO | d 1
 - f 
.971| 5.67| .97
.597| 2.80| .69
.2701 1.38i| .28
.175| .59| .28
7 . 79 f 56 . 9 3
6.70|36.90
3.13123.701
2.12| 6.98
0.0 I 1.0
0.0 I 1.0
.116| 2.97
.1261 2.96
7.59
6.79
f3. 19
3.19
0.0
0.0
.18
.18

Eqn
1
2
3
9
_
Used Cor Hodel fears:
For HC and CO J For 10 x
Not Dsed
Pre-1979
Post-1978
Not Dsed
Mot Used
Pre-1979
Post-1978
lot Used

-------
                     TABLE  II-fec

         Specification of Speed Terns  (V
-------
                     TABLE  II-fcd

         Specification of Speed Terns  (Vg)
      Used in the General Formulas  tor  Ripstwx

             LIGHT-DOTY TRUCKS  (6-8. SK  GVH)

  FOR ALL AREAS EICEPT CALIFOBHIA AMD HIGH-ALTITUDE
Low-Altitude Pre-1979                      Group 1*

Low-Altitude 1979+                         Group 78

-------
                      TABLE  II-7
                IDLE  EBISSIOM  BITES
      1IGHT-DOTT TRUCKS:  BOTH  WEIGHT  CATEGORIES
  FOB ALL ABEAS EICEPT CALIFOB1IA  AID HIGH-ALTITUDE
FOLLOTANT
HC
HC
HC
HC
HC
HC
CO
CO
CO
CO
CO
CO
MOI
HOI
IOX
HOX
MOX
MOX
HOX
flODEL YEAR
PRE-1968
1968-1969
1970-197*
1975-1978
1979-1982
1983+
PRE-1968
1968-1969
1970-197*1
1975-1978
1979-1982
1983*
PRE-1968
1968-1969
1970-1972
1973-197*
1975-1978
1979-198H
1985*




















MEW VEHICLE
EJ1ISSIOK RATE
	 -
2.19
1.20
1.00
0.99
0.2t
0.08
16.58
13.77
1t>.32
9.U9
1,b2
O.H9
0.16
0.2U
0.26
0.19
0.26
0.18
O.OU
DETERIORAIIOM RATE
(PER 10,000 RILES)
0.18
0.20
0.20
0.19
0.19
0.06
2.55
2.83
2.92
2.17
1.56
0.25
0.00
0.00
0.00
0.00
0.01
0.01
0.02
The Idle Emission Factor  is calculated  from
the linear equation C = a  bT,  where C  is  the
idle emission factoi for  a vehicle  Hith
cumulative mileage B, a and b are  the factors
listed in the above table, and If =  n/10000.

-------
                    TABLE II-7A
                IDLE EHIS5I01 RATES
            LIGHT-DUTY TRUCKS  (0-6K GVM)
  FOB ALL AREAS EXCEPT CALIFORNIA AND HIGH-ALTITUDE
POLLUTANT
HC
HC
HC
HC
HC
CO
CO
CO
CO
CO
10X
vox
NOX
NOX
VOX
VOX
flO DEL YEAR
piE-ms
1968-197H
1975-1978
1979-1982
1983*
PIE-1968
1968-197l
1975-1978
1979-1982
1983*
PBE-1968
1968-1972
1973-197ft
1975-1978
1979-198*
1985*
	

















VEW VEHICLE
EBISSIOX PATE
2.01
0.68
0.28
0.20
0.08
16.42
12.73
2.02
1.82
O.M9
0.16
0.26
0.16
0.25
0.18
O.OU
DETERIORATION RATE
(PEB 10,000 RILES)
0.18
0.20
0.19
0.19
0.06
2.55
2.92
1.56
1.56
0.25
0.00
0.00
0.00
0.02
0.01
0.02
The Idle Enission Factor is calculated  fro*
the linear equation C  a * bl, where C  is  the
idle emission factor for a vehicle  with
cumulative aileage ti, a and b are the factors
listed in the above table, and T =  H/10000.

-------
                    TAB1E II-7B
                IDLE EBISSIOI RATES
           LIGHT-DUTY TBDCKS  (6-8.5K GVH)
  FOR All AREAS EXCEPT CAIIFORNIA AND HIGH-A1TITUDE
                       A	(Gn/HIK.) J	B
POLLUTANT
HC
HC
HC
HC
CO
CO
CO
CO
 01
VOX
10X
IOX
110DE1 TEAR
	 	
PRE-1970
1970-1978
1979-1982
1983*
PRE-1970
1970-1978
1979-1982
1983+
PRE-1970
1970-1978
1979-198 H
1985*
_













NEW VEHICLE
ERISSION RATE
	 "-
2.93
1.86
0.21
0.08
17.21
18.62
1.82
O.U9
0.18
0.27
0.18
0.04
DETERIORATION BATE
(PER 10.000 RILES)
0.18
0.20
0.19
0.06
2.55
2.92
1.56
0.25
0.00
0.00
0.01
0.02
The Idle Emission Factor is calculated from
the linear equation C = a * bY, where C is the
idle emission factor for a vehicle with
copulative nileage H, a and b are the factors
listed in the above table, and 1 > B/10000.

-------
                              TIBLE II-8

            Crankcase aod Evaporative KC Enission  Factors
                                (ga/mi)

              LIGHT-DUTT TRUCKS: BOTH WEIGHT CATEGORIES

          FOB AIL AREAS EXCEPT CAIIFOHUIA ABD BIGH-A1TITUDE
                     0-6000 Ib. Trucks(l)       6001-8500  Ib.  Trucks(2)
 Pre-1963                   b.63                          7.70

1963-1967                   3.33                          7.70

T968-1970                   2.53                          2.b3

1971-1977                   1.76                          2.b3

  1978                      0.60                          2.53

  1979                      0.60                          0.60

  1980*                     O.lb                          0.15

 (IJAssumes that 0-6000 Ib. trucks travel an average  of  3.3 trips
    per day and accumulate an average ol 29. A miles per  day.

 (2JArsumes that 6001-8500 Ib. trucks travel an average  of  10.9 trips
    per day and accunulate an average of 63.6 miles    per  day.

-------
                         TABLE II-9

               LOT Loading Correction Factor
          (Additional 500 Pounds, All Rode] Years)
The loading Correction Factor, L(p), is given by:

            L(p)  u*(cf(p) - 1.0) 4 1.0

w here:

  u     = fraction of vehicles with additional  load of 500 pounds

  cf (p) = correction factor values selected frow table below

  L(p)  = Loading Correction Factor
        HC                                    1.0fc

        CO                                    1.20

        MOi                                   1.03

-------
          TJIBiE 11-10
SALES WEIGHTIIG DISTRIBUTION
Rod el
!!_
Pre-1968
T968-1969
1970-1972
1973-1974
1975*
0-6000 Ib. Truck
Sales Weighting
.80
.77
.7*1
.72
.55
6001-850
Sales ti
.20
.23
.26
.28
.15
0 Ib. True*
eiqhtinq






-------
                    TABLE III-1
               EXHAUST ERISSIOI RATES
                HEA-D8TY GAS TRUCKS
  FOB &LL AREAS EICEPT CALIFORRIA AID HIGH-ALTITUDE

POLLUTAIT
RC
HC
RC
HC
RC
CO
CO
CO
CO
CO
BOX
MOx
HO*
BOX
lOx

RODEL IEAR
PRE-1970
1970-1973
1974-1978
1979-1982
1983+
PHE-1970
1970-1973
197*1-1978
1979-1982
1983*
PiE-1970
1970-1973
1971-1978
1979-1981
1985 +
1 A (GH/niLE)
HEU VEHICLE
EHISSIOI BATE
23.90
18.51
22.02
5.22
1.16
272.90
212.70
218.80
191.90
15.38
8.80
12.80
10.50
9.10
3.99
| B iGH/HILEl
DETERIORATION RATE
(PER 10rOOO RILES)
 	 	 ...- 
0.58
0.53
0.53
0.53
1.06
3.06
6.15
6.15
6.15
10.51
0.00
0.00
0.00
0.00
0.31
The Exhaust Emission Factor is calculated fro*
the linear equation C * a  bY, where C is  the
exbaust emission factor for a vehicle with
cumulative mileage H, a and b ate the factors
listed in the above table, and f * H/10000.

-------
                              TABLE IJI-2

EAI EXHAOST  fcBISSIOl FlCTOBS  FOB GASOLIHE-POHERED HEAVT-DUTT  VEHICLES
                       HYDROCARBONS (GH/RI)
       FOR  ALL REGIOIS EXCEPT  CALIFORRIA 1MD  HJCB-ALTITUDE
- .  '- x
-?y >,o:i
f
n '
'( ! ' *
1 ' :
r:  '-,

1
\ " -: '
I "-
I "' "-; r '"
f 1 '">l ' v
1 1 ^ -. .
| " :;( -
I "''- *
i  w.
1 ?  > 

*= 

, -, 1. :




'-,. '
1-
7s: - !
f j - -.'**
*[ * % , $ #
?l ' ''*v' /
i
'70 1971
ails 35.1
i.5 31.8
'%3 31.5
,0 31.3
1*7 31.0
3.3 33.7
53,0 33.3
1-2.6 33.0
32.1 32.6
3t.f> 32.1
>-:.i 31.6
ia.a 31.1
?3.7 30.1
?;l,0 29.7
va.1 2i.O
i'7.1 28.1
^6.t 27.1
/S.O 26.1
1.8 19.5
18.8














1972
35.1
31.8
31.5
31.3
31.0
33.7
33.3
33.0
32.6
32.1
31.6
31.1
30.1
29.7
29.0
28.1
27.1
20.5
19.5
18.8













1973
35.1
31.8
31 13
34.0
33.7
33.3
33.0
32.6
32.1
31.6
31.1
30.1
29.7
29.0
28.1
21.5
20.5
19.5
18.8












CALEBDAB TEAR - July 1
1971 1975 1976 1977
35.1
31.8
31.5
34.3
31.0
33.7
33.3
33.0
32.6
32.1
31.6
31.1
30.1
29.7
29.0
22.4
21.5
20.5
19.5
22.3











35.1
34.8
34.5
31.3
31.0
33.7
33.3
33.0
32.6
32.1
31.6
31.1
30.1
29.7
23.2
22.1
21.5
20.5
23.0
22.3










*
35.1
34.8
34.5
31.3
31.0
33.7
33.3
33.0
32.6
32.1
31.6
31.1
30.1
23.9
23.2
22.4
21.5
21.0
23.0
22.3









35.1
3Q. 8
31.5
34.3
31.0
33.7
33.3
33.0
32.6
32.1
31.6
31.1
24.5
23.9
23.2
22.4
25.0
24.0
23.0
22.3








1978

35.1
34.8
34.5
34.3
34.0
33.7
33.3
33.0
32.6
32.1
31.6
25.1
24.5
23.9
23.2
25.8
25.0
24.0
23.0
22.3







1979


35.1
34.8
34.5
34.3
34.0
33.7
33.3
33.0
32.6
32.1
25.6
25.1
24.5
23.9
26.6
25.8
25.0
24.0
23.0
5.5






I960



35.1
34.8
34.5
34.3
34.0
33.7
33.3
33.0
32.6
26.0
25.6
25.1
24.5
27.4
26.6
25.8
25.0
24.0
6.2
5.5





1981




35.1
34.8
34.5
34.3
34.0
33.7
33.3
33.0
26.5
26.0
25.6
25.1
28.0
27.4
26.6
25.8
25.0
7.2
6.2
5.5
!
t
it
I
i
  'j'h FACTORS FOR VEHICLES  THROUGH BOOEL TEAR  1975 AID THROUGH
  At, f EAR  1975 ARE BASED OB  ACTUAL TESTS OF IW-USE VEHICLES.
  f,  CALENDAR TEAR EHISSIOR  FACTORS FOR ALL  VEHICLES ARE PROJECTED.

-------
                 TABLE III-2   (FOB CALEiDAR  TEARS 1982-1993)

 PID-IBAR  IXHAOST EH1SSIOW FACTORS FOR GASOLIE-POERED  HEAVTf-DUTI VEHICLES
                            HYDROCARBONS  (GH/RI)
             FOR ALL 8EGIOHS  EXCEPT CALIFORNIA  AID HIGH-ALTITUDE
fBODEL
IEAR
1965J
1967J
19701
1971J
1972|
1973J
197(
1975J
19761
1977|
1978|
1979|
19801
1981J
19821
1983J
198|
1985J
1986|
19871
19881
1989J
1990J
1991f
19921
1993J
1
ft982
35.1
3 ft .8
3ft. 5
3H.3
3ft.O
33.7
33.3
26.8
26.5
26.0
25.6
78.6
28.0
27.H
26.6
2S.8
8.2
7.2
6,2
5.5











1983
35. 1
3ft. 8
3ft. 5
Jft.3
3ft. 0
33.7
27.2
26.8
26.5
26.0
29.1
28.6
28.0
27. ft
26*6
9.0
8.2
7.2
6.2
2.0










1984
35.1
3 .1
3ft .8
3ft. 5
3ft. 3
27.8
27.5
27.2
26.8
29.9
29.5
29.1
28.6
28.0
10.6
9.8
9.0
8.2
5.5
3.5
2.0








CALENDAR YEAR - July 1
1986 1987 T988 1989
35.1
3ftl5
28.0
27.8
27.5
27.2
30.3
29.9
29.5
29.1
28.6
11.2
10. 6
9.8
9.0
7 .ft
5.5
3.5
2.0







35.1
3ft. 8
28.3
28.0
27.8
27.5
30.6
30.3
29.9
29.5
29.1
11.8
11.2
10.6
9.8
9.1
7. ft
5.5
3.5
2.0






35.1
28.5
28.3
28.0
27.8
31.0
30.6
30.3
29.9
29.5
12.3
11.8
11.2
10.6
10.7
9.1
7. ft
5.5
3.5
2.0





28.7
28.5
28.3
28.0
31.2
31.0
30.6
30.3
29.9
12.7
12.3
11.8
11.2
12.1
10.7
9.1
7. ft
5.5
3.5
2.0




1990

28.7
28.5
28.3
31.5
31.2
31.0
30.6
30.3
13.1
12.7
12.3
11.8
13. ft
12.1
10.7
9.1
7. ft
5.5
3.5
2.0



1991


28.7
28.5
31.7
31.5
31.2
31.0
30.6
13.5
13.1
12.7
12.3
M.S
13. ft
12.1
10.7
9.1
7. ft
5.5
3.5
2.0


1992



28.7
32.0
31.7
31.5
31.2
31.0
13.8
13.5
13.1
12.7
15.5
1ft .5
13. ft
12.1
10.7
9.1
7. ft
5.5
3.5
2.0

1993




32.2
32.0
31.7
31.5
31.2
1ft. 2
13.8
13.5
13.1
16,5
15.5
tft.5
13. ft
12.1
10.7
9.1
7. ft
5.5
3.5
2.0
*EHISSIOI  FACTORS FOB fEHICLES  THROUGH RODEL YEAR 1975 AMD  THROUGH
 CALENDAR  TEAR 1975 ARf BASED OS ACTUAL  TESTS 01  IB-USE  VEHICLES.
 POST--1915 CAiEMfUR fEIB  EBI5SIOK FACTORS  FOR ALL VEHICLES  ABE PROJECTED.

-------
                                    TABLE III-3

   BIB-TEAR EXHAUST ERISSION FACTORS  FOB GASOLINE-POKERED HEAVT-DUTT  VEHICLES
                           CAB BOH  MONOXIDE (GR/RI)
              FOR ALL BBGIOIS EXCEPT  CALIFORNIA AID HIGH-ALTITUDE
IBODE1J                        CALENDAR TEAR - Julj 1
IYIAR 11970  1971  1972   1973  197*   1975  1976  1977  1978   1979   1980   1981
 * ^    .  *   -,.. __-M__ *-_.v..VM-b*_ _ _  *-.   ._  .w _ v_ __ _^ .. _<*. wv.w*-_.. - m *. ^. *.-
(1951J331.8                               |*
(1952(330.5 331,8                         (
119531329.0 330.5 331.8                   |
il95*j32?.6 329.0 330.5 331.8             I
11955(326.1 327.6 329.0 330.5  331.8       |
11956(32*.5 326.1 327.6 329.0  330.5  331.8f
|1957|322.7 32*.5 326.1 327.6  329.0  330.5(331.8
|1958|320.7 322.7 32*.5 326.1  327.6  329.0|330.5 331.8
(1959(318.6 320.7 322.7 32*.5  326.1  327.6J329.0 330.5 331.8
|19fcO|316.2 318.6 320.7 322.7  32ft.5  326.1f327.6 329.0 330.5 331.8
11961|313.6 316.2 318.6 320.7  322.7  32*.5(326.1 327.6 329.0 330.5 331.8
119621310.6 313.6 316.2 318.6  320.7  322.7(32*.5 326.1 327.6 329.0 330.5^331.6
|19fe3|307.ft 310.6 313.6 316.2  318.6  320.7J322.7 32H.5 326.1 327.6 329.0  330.5
|19&H|303.7 307.11 310.6 313.6  316.2  318.6|320.7 322.7 321.5 326.1 327.6  329.0
|19fc5|299.6 303.7 307.* 310.6  313.6  316.2|318.6 320.7 322.7 32*.5 326.1  327.6
|1966|295.0 299.6 303.7 307.*  310.6  313.6|316.2 318.6 320.7 322.7 32*.5  326.1
|1967|290.0 295,0 299.6 303.7  307.*  310.6(313.6 316.2 318.6 320.7 322.7  32*.5
(1968(284.5 290.0 295.0 299.6  303.7  307.|310.6 313.6 316.2 318.6 320.7  322.7
11969(278.7 28*.5 290.0 295.0  299.6  303.7(307.* 310.6 313.6 316.2 318.6  320.7
(1970(215.6 22*.* 236.0 2*7.0  257.1 266.3(27*.6 282.0 288.6 29*.* 299.7  304.5
I1971J      215.6 22*.* 236.0  2*7.0  257.1(266.3 27.6 282.0 2t8.6 29*.*  299.7
(1972(            215.6 22*.*  236.0  2*7.0(257.1 266.3 27*.6 282.0 288.6  29*.*
f1973(                  215.6  22*.*  236.0(2*7.0 257.1 266.3 27*.6 282.0  288.6
(197*(                         221.7 230.5(2*2.1 253.1 263.2 272.4 280.7  288 . t
(1975(                               221.7(230.5 2*2.1 253.1 263.2 272.*  280.7
(1976|                                    (221.7 230.5 2*2.1 253.1 263.2  272.*
(1977J                                    I       221.7 230.5 2*2.1 253.1  263.2
|1978(                                    |             221.7 230.5 2*2.1  253.1
f!979(                                    |                   19*.8 203.6  215.2
I1980(                                    |                          19*.8  203.6
jl98f(                                    (                                19*.8
11982|                                    |
|1983|                                    I
(198*(                                    (
|1985(                                    |
M9861                                    I
(1987(                                    (
(1988(                                    (
(19891                                    I
  4EBISSION FACTORS FOR VEHICLES  THROUGH  RODEL TEIB 1975 AID THROUGH
   CALENDAR TEAR  1975 ARE BASED ON  ACTUAL TESTS OF IN-USE VEHICLES.
   POST-1975 CALENDAR TEAR  ERISSION FACTORS FOR ALL VEHICLES ARE PROJECTED.

-------
                 TABLE III-3  (FOR CALEIDAR  TEARS  1982-1993}

 RIB-YEAR EXHAOST  EHISSIOI FACTORS FOB GASOLIME-POWEBED HEATI-DUTT  fEHICLES
                          CARBO* BOROXIDE  (6R/BI)
             FOR  ALL  RECTORS EXCEPT CALIFORNIA  AID HIGH-ALTITUDE
IBODEI |
(IEAR |1982
|19fe3| 33 1.8
(19641330.5
|1965|329. 0
(1966(327.6
|19fc7t326. 1
(1968(324.5
(19691322.7
|1970|308.8
(1971(304.5
|1972|299.7
(1973J294.4
|1974|294.7
119751288.1
|1976|280.7
|1977|272.*
(19781263.2
119791226.2
|1980|215.2
|198tf2G3.6
11982(194.8
(19831
(1984(
|1985|
|1986|
(19871
|1988(
(1989|
(19901
(1991(
(19921
(19931
1983
331.8
330.5
329.0
327.6
326.1
324.5
312.7
308.8
304.5
299.7
300.5
294.7
288.1
280.7
272.4
236.3
226.2
215.2
203.6
20.4










1984
331.8
330.5
329.0
327.6
326.1
316.3
312.7
308.8
304.5
305.8
300.5
294.7
288.1
280.7
245.5
236.3
226.2
215.2
35.4
20.4









1985
331.8
330.5
329.0
327.6
319.6
316.3
312.7
308.8
310.6
305.8
300.5
294.7
288.1
253.8
245.5
236.3
226.2
55.3
35.4
20.4








CALEI
1986
331.8
330.5
329.0
322.6
319.6
316.3
312.7
314.9
310.6
305.8
300.5
294.7
261.2
253.8
245.5
236.3
74.1
55.3
35.4
20.4







IDAR Tl
1987
331.8
330.5
325.5
322.6
319.6
316.3
318.8
314.9
310.6
305.8
300.5
267.8
261.2
253.8
245.5
91.5
74.1
55.3
35.4
20.4






EAR - 
1988
331.8
328.4
325.5
322.6
319.6
322.4
318.8
314.9
310.6
305.8
273.6
267.8
261.2
253.8
107.3
91.5
74.1
55.3
35.4
20.4





July 1
1989
331.1
328.4
325.5
322.6
325.7
322.4
318.8
314.9
310.6
278.9
273.6
267.8
261.2
121.5
107.3
91.5
74.1
55.3
35.4
20.4




1990

331. 1
328.4
325.5
328.7
325.7
322.4
318.8
314.9
283.7
278.9
273.6
267.8
134.2
121.5
107.3
91.5
74.1
55.3
35.4
20.4



1991


331.1
328.4
331.6
328.7
325.7
322.4
318.8
288.0
283.7
278.9
273.6
145.4
134.2
121.5
107.3
91.5
74.1
55.3
35,4
20.4


1992



331.1
334.5
331.6
328.7
325.7
322.4
291.9
288.0
283.7
278.9
155.4
145.4
134.2
121.5
107.3
91.5
74.1
55.3
35.4
20.4

1993




337.2
334.5
331.6
328.7
325.7
295. b |
291.9 1
288.6 |
283.1 |
164.5 |
155. 4 
ws.a 
134.2 S
121.5
107.3
91. 5
74.1
55.3
35.*l
20.4
EHISSIOI FACTORS  FOR  fEHICLES THROUGH HODEL  IEAR  1975 AID THROUGH
 CA1ERDAR TEAE  1975  ARE BASED Ol ACTDAL TESTS OF  IB-USE VEHICLES.
 POST-1975 CALEIDAR  TEAR EHISSIOI FACTORS FOB ALL  fEHICLES ARE PROJECTED.

-------
                                   TABLE  II1-I

 BID-TEAS EXHAUST  EBISSION FACTORS  FOR  GASOLINE-POUERE8  IEAVT-DUTT VEHICLES
                          ITBOGEI OXIDES (GH/HI)
             FOR  ALL REGIONS EXCEPT  CALIFOBII1 110 BIGH-ALTITODE
IRODEL
(TEAR
I
I1952J
119531
|195*|
119551
|1956I
H957I
|1958f
1 1959|
( 1960|
1 1961 1
|1962|
J1963I
f 1964|
{ 1 96 5 1
I1966J
|1967|
|1968|
J1969I
| 1970|
|1971|
119721
I1973J
|197Hl
|1975|
119761
|1977|
|1978|
1 1979|
11961|
11982}
| 1983J
M98M
119851
i1987|
| 1988|
119891
119901
1
1970
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8


















1971
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8

















1972
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
















1973
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8















CALENDAR TEAR - July 1
197* 1975 1976 1977
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5














8.8
888
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5













*
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5












8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
IQ.b
10.5
10.5











1978
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10,5
10.5
10.5
10.5










1979

8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10. 5
9.1









1980


8.8
8.8
8.8
8. ft
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
*








1981



8.8
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10. S
10.5
10.5
9.1
9ll





1
1
1
*ER1SSIQS FACTORS FOR VEHICLES  THROUGH  BODEL TEAS  1975  AHO tHBOUGH
 OIENDA1 TEAR  1975 ABE BASED Oi  ACTUAL TESTS OF IB-USE VEHICLES.
 POST-1975  CALENDAR TEAR EHISSIOH  FACTORS FOR ALL  VEHICLES AME PROJECTED.

-------
                 TABLE  III-1  (FOR CALEBPAB  TEABS  1982-1993)

 BID-YEAR EXHAUST  EHISSION FACTORS FOB GASOLIBE-PONEBED HEAVT-DUTf
                          1ITB06EI OXIDES  (GB/HI)
            FOB  Ail  REGIONS EXCEPT CALIFOBBIA  AID HIGH-AiTITUDE
IRODEL
ITEAB
*  1
| 1966|
(1968|
| 1969|
| 1970|
I1971J
|!972t
(1973|
J1971J
f 19751
|1976|
11977!
1 19781
| 1979|
|1980|
I 198 1|
|1982|
|1983|
| 198 I
(19B5J
|1986|
I 19871
(1988(
| !989f
| 1990|
| 1991|
|1992(
(1993J
1
(1982
8.8
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1











1983
8.8
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1
9.1










19B1
8.8
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1
9.1
9.1









1985
8.8
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1
9.1
9.1
1.2








CALEBDiB TEAB - July 1
1986 1987 1988 1989
8.8
8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1
9.1
9.1
1.6
1.2







8.8
8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1
9.1
9.1
5.3
1.6
1.2






8.8
12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.
9.
9.
9.
9.
9.
5.9
5.3
1.6
1.2






12.8
12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.
9.
9.
9.
9.
6.1
5.9
5.3
1.6
1.2




1990


12.8
12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1
9.1
9.1
7.0
6.1
5.9
5.3
1.6
1.2



1991



12.8
12.8
10.5
10.5
10.5
10.5
10.5
9.1
9.1
9.1
9.1
9.1
9.1
7.1
7.0
6.1
5.9
5.3
1.6
1.2


1*




i; t
it- 
to
10, S
10. S
10.5
9.1
9.!
9,
9 ,
f- .
,



t, i
!.;,
i
*,,
* *'

	




-; f> s 1
e -* 6
', -' ^ ^ 
 0  5 |
.'.*: *
H' . :' j
.1 S
9,1 |
9.! $
9.; ;
5.1 *
"2 I
a i
a .
.0
i
,9
i.3
'.'.6
V'12_
*IHISSIOB FACTOBS  FOB  VEHICLES THROUGH  RODEl  TEAB 1975 AID THROUGH
 CA1FKDAB TEAB  1975  ABE BASED OB ACTUAL  TESTS OF IB-USE VEHICLES.
 POST*1975 C11EBDAB  TEAB EHISSIOB FACTOBS FOB ALL VEHICLES ABB

-------
            T1BIE  III-5




TRAVEL WEIGHTING FACTOR CILCOL1TIOV




                             VEBIC1.ES
Vehicle
Age
__

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Fraction Total
Begistration
~" 0~037
0.070
0.078
0.086
0.075
0.075
0.075
0.068
0.059
0.053
0.044
0.032
0.038
0.036
0.034
0.032
0.030
0.028
0.026
0.024
Annual flileage
Accumulation Bate
19000
19000
17900
Y6500
15000
13500
12000
10600
9500
8600
7800
7000
6300
5900
5300
4900
4700
4600
4400
4200

laljtil
703.0
1330.0
1396.2
1419.0
1125.0
1012.5
900.0
720.8
560.5
455.8
343.2
224.0
239.4
212.4
180.2
156.8
141.0
128.8
114.4
	 IQfijJL
( () (bJ/SUH)
Travel Fraction
0.061
0.116
0.122
0.124
0.098
0.088
0.079
0.063
0.049
0.040
0.030
0.020
0.021
0.019
0.016
0.014
0.012
0.011
0.010
0.009
                          son: 11463.8

-------
                       TABLE  III-5A

                AVERAGE CBBOLATIVE MILEAGE
                  BT VEHICLE  AGE  - July 1
                    1               4750
                    2              19000
                    3              37862
                    l              S5725
                    S              722T2
                    6              87212
                    7             100712
                    8             11272S
                    9             123362
                  10             132867
                  11             141SOO
                  12             149300
                  13             156312
                  14             162650
                  15             168525
                  16             173850
                  17             178775
                  18             183187
                  19             188075
                  20             192474
The methodology foe calcolatiag  average cumulative mileage
  is presented in Appendix G.

-------
                                   TAB1E 1II-6
                      SPEED  COBEECTIOI FACTGB COEFFICIfKTS
                     FOB GAS01INE-POUEBED HE1VY-DUTY VEHICLES


              FOB All BEGIOBS EXCEPT CA1IFOBBIA AKD HIGH-ALTITUDE
|BODEl IEIB
I
|   PBE-1970
I
|  1970-1973
f
|  1974-1978
r
|    1979*
I	
2,420 -0.153  0.0016


f.140 -0.06S  0.000*


1.560 -0.096  0.0009


1,5IO -0.071 -0.0003
	CABBOB_H01IOXIDE	
__A	B	C	

 1.740  -0.117  0.0015


 1.540  -0.097  0.0010


 1.240  -0.078  0.0008


 0.620  -0.039  0.0004
0.851 0.0074


0.812 0.0094


0.820 0(,0081


0.764 0..0120

-------
                    TABLE III-7
                ID1E EHISSIOli  RATES
                HEAT-DUTf GAS  TBDCKS
  FOR ALL AREAS EICEPT CALIFOilllA  AID  HIGH-ALTITUDE
POLLUTAMT
HC
RC
HC
RC
HC
CO
CO
CO
CO
CO
ox
ox
ox
ox
vox
i
HOD EL TEAR
PBE-1970
1970-1973
197U-T978
1979-1982
1983*
PBE-1970
1970-1973
197S-1978
1979-1982
1983*
PiE-1970
1970-1973
197-1978
1979-198$
1985*

EH VEHICLE
ERISSIOI BATE
~
3.85
0.71
3.09
0.73
0.20
21.63
15.70
21.92
19.23
1.5*
0.02
0.04
0.02
0.02
0.01

DETERIORATION BATE
(PEB 10,000 BILES)
0.18
0.20
0.20
0.20
o.p
2.55
2.92
2.92
2.92
5.00
0.00
0.00
0.00
0.00
0.00

The Idle Emission Factor is calculated  iron
the linear equation C = a * bT, where C is  the
idle eaission factor for a vehicle with
coBulative nileage H, a and b are the factors
listed in the above table, and f = H/10000.

-------
                    TABLE III-8




   Crankcase and Evaporative HC  Emission  Factors
               HEAft-DUTl CAS TBOCKS




 FOR ALL ABEAS EXCEPT CALIFOBMIA AID  HIGH-ALTITUDE
Hpdel Tear              Hydrocarbon  Emissions (
-------
                               TABLE III-9
             COEFFICIENTS FOR AVG. HEIGHT ARD  AfG.  WEIGHT/CID
                 FOR GASOLIRE-POVERED HEAfY-DUTY  VEHICLES

           FOR 111 REGIOIS EICEPT CA1IFOBII* AMD  HIGH-ALTITUDE
 PRE-1970

1970-1973

  197**
            .HID ROC ARBORS	
             bObl     b2
 1.302   0.177 -0.065

-O.S8*   0.121 -0.010

 0.762   0.131 -0.0l7
C ARBOR HOROI1DE
 bO   7. bl     b2
b<
                             b
                                                           b 2
                                                     I
0.81H -0.036  0.016J 0.869  0.172  -O.OS
                    I
0.354  0.106 -0.02ft | 0.883  0.016  -O.Q03|
                    I                     I
0.320  O.U9 -0.0S| 0.9*3  0.008  -0.002|
                P(ipnoq) * bO * b1(UT/1000)  *  b2 (HT/CID)

 This correction factor is applicable only  to  gasoline-powered HDVs with
 eights ranging fro* 13000 to 29000 pounds and CID  of  330 to 390.

-------
                     TABLE I?-1
               EXHAUST EHISSIOH BATES
             HEAVY-DUTY DIESEL VEHICLES
  FOR ALL AREAS EXCEPT CALIFOBftIA AMD HIGH-ALTITUDE
POLLUTAMT
HC
HC
HC
RC
CO
CO
CO
CO
BOX
MOX
HOx
MOx
NOOEL YEAR

PBE-197*
197H-1978
1979-1982
1983*
PRE-197
-------
                                   TABLE  IV-?

  flD-YEAR  EXHAUST EHISSION  FACTORS FOB  DIESEL-POWERED HEAVY-DUTI VEHICLES
                             HYDROCARBOHS  (GH/BI)
             FOR ALL HEGIONS  EXCEPT CALIFORNIA AMD HIG-ALTITUDE
MODEL |
YEAR |
1951|
1952|
1953(
195ft |
19551
1957|
1958|
1959 |
1960|
196 1|
1962 |
1963 |
1964|
1965|
1966 |
1967|
19681
1969|
1970f
1971J
19721
1973|
197*1
19751
?976f
1977f
1978J
1979|
19PO|
19F1|
1962|
19P3|
1984 |
19R6|
T987J
1988J
19P9|
1990|
1970
4.3
4.3
4.3
4.3
4.3
4.3
4l3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3



















1971
4.3
4.3
4^3
4.3
4.3
4.3
4.3
U. 3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3


















1972
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
1.3

















1973
4.3
4.3
4.3
4.3
4.3
4 .3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
















CALENDAR YEAR - July 1
1974 1975 1976 1977
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4 .5















4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.5
4.5














4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.5
4.5
4.5













4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4 .3
4.5
4.5
4.5
4.5












1978

4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.5
4.5
4.5
4.5
4.5











1979


4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.5
4.5
4.5
4.5
4.5
4.5










1980



4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.5
4.5
4.5
4.5
4.5
4.5
4.5









198 1




4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5








*ERISSIOM  FACTORS FOB VEHICLES  THROUGH  TODEL  YEAR 1975 AMD  THROUGH
 CALFKDAR  YEAR 1975 ARE BASED  OK ACTUAL TESTS OF IK-USE  VEHICLES.
 FOST-1975 CALENDAR YEAR  EHISSIOU FACTORS  FOR ALL VEHICLES  ARE PROJECTED.

-------
TABLE
                             (FOR CALENDAR  TEARS  1982-1993)
  FID-YEAR EXHAUST  EMISSION FACTORS FOR  DIESEL-POKERED HEAVY-DUTY  VEHICLES
                            HYDROCARBONS  (Gfl/BI)
            FOR  ALL REGIONS EXCEPT CALIFORNIA  AND HIGH-A LT JTUDE
HODEIJ
f EAF |
~
19fc3|
19t>t|
19f 5|
196fc|
1967J
19fc8|
1969|
1970|
1971|
1972{
1973|
1971 |
1975J
197fcj
T977|
1978|
1979f
1980|
19f 1J
19P2|
1983J
19P*J f
1985J
t9etj
19P7J
1988J
19fc9|
19901
1991|
1992J
1993J
1982

1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5











1983


1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8










1981



1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8
2.6









1985




1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.5
1.5
1.5
*.S
1.5
1.5
1.5
1.5
1.5
2.8
2.8
2.8








CALEIPA
1986 1





1.3
1.3
1.3
1.3
1.3
1 .3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8
2.8
2.8
2.8







R YEAR -
987 1988






1.3
1.3
1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8
2.8
2.8
2.8
2.8













1.3
1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8
2.8
2.8
2.8
2.8
2.8





July 1
1989








1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8
2.8
2.8
2.8
2.8
2.8
2.8




1990









1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8



1991










1.3
1.3
1.5
1.5
1.5
1.5
1.5
.5
M.5
1.5
1.5
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8


1992











1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8

1993












1.5
1.5
1.5
.5
1.5
U.5
*.5
1.5
1.5
2.6
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.B
2.8
2.8
*EHISSIO FACTORS  FOR  VEHICLES THROUGH  MODEL TEAR 197i> AJID  THROUGH
 CLFDAR YEAR  1975 ARE BASED on ACTUAL TESTS OF IK-USE  VEHICLES.
 POST-1975 CALEHDAR YEAR EMISSION  FACTORS FOR ALL VEHICLES  ARE  PROJECTED.

-------
                                    TABLE  IV-jl

            EXHAUST  EMISSION  FACTORS  FOR  DTESEL-POKERTV HEAVT-DOTT  VEHICLE?
                           CABHOW ft 01*0 XI D I (GR/KI)
             FOR  ALL REGIONS  EXCEPT CALIFORNIA  AND  HJCH-ALTJTDDE
nor FI
YEAR
* i 4 * 1
1 G 'v "3 |
19SU |
1956 |
19S8f
1959|
t Q f- fl i
19f> 1 \
If Q t, O I
196 3|
19t <4 |
1 965|
1966!
19t 7|
19frE j
19691
1970J
1971|
1972i
1973J
197t]|
1975|
1 97f j
1977|
1978 f
1979f
19PC|
79P 1|
1982J
1985J
19P6J
1988 |
1
1970
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1















197
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.














1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
I
1
1
1
1
1














1972
35.
35.
35.
35.
35.
35!
3S.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.













1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1













1973
35.1
35.1
35.1
35,1
35.1
35.
35.
35.
35.
35.
35.
35.1
35.1
35. 1
35.1
35.1
35.1
35.1
35.1
35.1












CALFK
197U
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
35.
27.











1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0











DAP YFftR - July 1
1975 197b 1977 197
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35. 1
35.1
3b. 1
35.1
35.1
35.1
35. 1
35.1
35.1
35.1
35.1
27.0
27.0










35
35
35
35
35
35
35
35
35
35
35
35
35
35
15
35
35
27
27
27









.1
.1
.1
.t
.1
.1
.1
.1
.1
. 1
.1
.1
.1
.1
.1
.1
.1
.0
.0
.0









35.1
35.1
35.1
35.1
35. 1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0








35.1
35. 1
35.1
35.1
35.1
35.1
35.1
J5.1
35.1
35.1
35.1
35.1
35.1
3S.1
35.1
27.0
27.0
27.0
27.0
27.0







1979

35
35
35
35
35
35
35
35
35
35
35
35
3b
35
27
27
27
27
27
27







.1
.1
.1
.1
.1
. 1
. 1
.1
.1
.1
.1
.1
. 1
.1
.0
.0
.0
.0
.0
.0






1980


35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0





1981



35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0




*FF
-------
                 TABLE IV-3   (FOB CALENDAR YEAfcS  1982-1993)

  FID-YEAR  EXHAUST EMISSION  FACTORS FOR DIESEL-POWERED HEAVY-DUTY VEHICLES
                          CARBON  HOHOITDE  (GH/K1)
             FOR  ALL REG10KS  EXCEPT CALIFORMIA  AKD HI&h-ALTITUQE
POtEL
YEAR
19fc3|
19fc|
1965|
19&6|
19fc7f
19fc8|
19fc9l
1970|
1971|
1972|
1973|
197M
19751
197fc&
1977J
1978|
1979|
19eC|
1961|
19P2J
W3|
19fr<4|
19&*> |
19Bf J
1987J
19B8|
19g9|
1990J
199 If
1992|
1993|
1
11982
35. t
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0











1983
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0










198U
35.1
3b.1
35.1
35.1
35.1
3b.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0









1985
35.1
35.1
35.1
35.1
35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0








CALENDAR YEAR - July 1
198fc 1987 1988 1989
35.1
35.1
35.1
35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0







35.1
35.1
35.1
35.1
35. I
3b.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0






35.1
35.1
35.1
35. 1
35.1
27.0
27.0
27.0
27.0
27.0
27. 0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0





35.1
35.1
35.1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0




1990

3i>. 1
3b. 1
35.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
2/.0
27.0
27.0
27.0
27.0
27.0
/iJ.O



1991


3b. 1
3b.1
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0


1992



35.1
27.0
27.0
27.0
;7.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0

1993




27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27.0
27. 0
27.0
27.0
27.0
27.0
27.0
27.0
*EPISSIO)I  FACTORS FOR VEHICLES  THROUGH KODEL  YEAR 1975 AND  THROUGH
 CALTKDAR  YEAR 1975 ARE BASED OK ACTUAL  TESTS OF 1K-CSE  VEHICLES.
 POST-1975 CALENDAR YEAR  EH1SSION FACTORS  FOR ALL VEHICLES  ARE PROJECTED.

-------
                                    TABLE IV~4

  BID-TEAS  EXHAUST EHISSIOH FACTORS  FOB LIESEL-POWEFED HEAVY-DUTY VEHICLES
                           MITROGEH  OXIDES  (GH/HI)
             FOR ALL  BEGIOMS EXCEPT CALIFOHIiJA  AMD HIGH-ALTITUDE
IHODFL
IYEAR
I
I1951S
I1952J
I1953J
| 19541
119551
|195fc|
J1957I
f 1958J
J1959J
f 19feO|
I1961J
|19fe2|
|19b3|
j 19fct|
It dL. Si t
i9bb I
|19frfc|
j 19fc7|
(19681
I19fc9f
|1970f
M971J
|1972f
M973I
J1974J
|1975|
I197M
|1977f
| 1978f
1 1979J
I 1980|
J1981J
f I982J
i 19831
$ 198|
I 1985|
i 1986|
jI987|
I 19881
| 19891
1 1990f
1
| 1970
21.*
21.4
21.4
21. <4
21. ft
21.4
21. a
21. 4
21.l
21.4
21.*
21.4
21.*
21. ft
21 ft
I.H
2 .*
2 .<*
2 .ft
2 .a
2 .1




















1971
2t.
21.1
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21 t
i .1
21.4
21.4
21.4
21.4
21.4
21.4



















1972
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.
2t it
i.l
21.4
21.4
21.4
21.4
21.4
21.4
21.4


















1973
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
2t it
 .*
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4

















CALEKDAB YEAR - July 1
1974 1975 197fc 1977
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21 ri
' .*
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
20.1
















21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
2* /i
I . H
21.4
21.4
21.4
21.4
21.4
21. a
21.4
21.4
20.1
20.1















*
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21 it
* * **
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
20. 1
20.1
20.1














21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
20.1
20.1
20.1
20.1













1978

21.4
21.4
21.4
21.4
21.4
21. U
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
20.1
20.1
20.1
20.1
20.1












1979


21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
20.1
20.1
20.1
20.1
20.1
19.9











1980



21.4
21.4
21.4
21.4
21 ti
I . H
21.4
21.4
21.4
21.4
21.4
21.4
21.4
2t.
20.1
20.1
20.1
20.1
20.1
19.9
19.9










1981




21.4
21.4
21.4
21,
. *
2 .4
2 .4
2 .4
2 .4
2 .4
21.4
21.4
21.4
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9









*Ef5l5SIO  FACTORS FOR  VEHICLES  TH80UCH RODEL  YEAR 1975 AMD  THROUGH
 CAIIMDAB  YEAR 1975  ARE BASED 08  ACTUAL TESTS  OF IJI-USE  VEHICLES.
 POST-1975 CALENDAR  YEAR EBISSIOH  FACTORS FOR  ALL VEHICLES  ARE PROJECTED,

-------
                 TABLE  I?--1   (FOB  CALENDAR fEARS  1982-1*93}

  BID-YEAR EXHAUST EMISSION  JACTORS  FOR DIESEL-POWERED HEAVY-DUTY VEHICLES
                           SITKOGEN OXIDES  (GB/HI)
             FOR ALL  REGIONS  EXCEPT CALIFORNIA  AMD HIGH-ALTITUDE
HOPEL
YEAR
1963J
mil
1965|
196fe|
I967|
1968f
1969|
1970f
1971J
1972J
1973J
1971J
t975f
1976 |
1977|
1978J
1979J
1960|
1981|
1982J
19B3t
1981 1
19651
1986J
1987|
19881
1989|
1990|
1991f
19921
1993|
1
11982
21. a
21. 1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9
19.9











1983
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9
19.9
19.9










1981
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
20.1
20.1
20.1
20. 7
20.1
19.9
19.9
19.9
79.9
19.9
19.9









1985
21.1
21.1
21.1
21.1
21.1
21.1
21.1
21.1
20. 1
20. 1
20.1
20. 7
20.1
19.9
19.9
19.9
19.9
19.9
19..9
5.3








CALENDAR YEAR - July 1
1986 1987 1988 1989
21.1
21.1
21.1
21.1
21.1
21.1
21.1
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9
19.9
19.9
19.9
5.3
5.3







21.1
21.1
21.1
21.1
21.1
21.1
20.1
20.1
20. 1
20.1
20.1
19.9
19.9
19.9
19.9
19.9
19.9
5.3
5.3
5.3






21.1
21.1
21.1
21.1
21.1
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9
19.9
19.9
19.9
5.3
5.3
5.3
5.3





21.1
21.1
21.1
21.1
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9
19.9
19.9
19.9
5.3
5.3
5.3
5.3
5.3




1990

21.1
21.1
21.1
20.1
20.1
20.1
20. 7
20.1
19.9
19.9
19.9
19.9
19.9
19.9
5.3
5.3
5.3
5.3
5.3
5.3



1991


21.1
21.1
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9
19.9
19.9
19.9
5.3
5.3
5.3
5.3
5.3
5.3
5.3


1992



21.1
20.1
20.1
20.1
20.1
20.1
19.9
19.9
19.9
19.9
19.9
19.9
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3

1993




20.1
20.1
20. T
20.1
20.1
19.9
7989
19.9
19.9
19.9
19.9
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
*EIUSSIO*  FACTORS FOR  VEHICLES THROUGH BODEL  YEAR 1975 AND THROUGH
 CALENDAR  YEAB  1975  ABE BASED ON  ACTUAL TESTS OF II-USE  VEHICLES.
 POST-1975 CALENDAR  YEAR EHISSION  FACTORS FOR AIL VEHICLES ARE PROJECTED,

-------
              TIBiE IV-5




TBAYEL KEIGHTIIG FACTOR  CICOL*TIOH




 DIESEL-POWERED HEAVY-DOT!  VEHICLES
Teh icle
Age
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

(a)
Fraction Total
BegJLStratioa
0.077
0.135
0.134
0.131
0.099
0.090
0.082
0.062
0.045
0.033
0.025
0.015
0.013
0.011
0.010
0.008
0.007
0.006
0.005
0.004

(b)
Annual nileage ( (a) * (b) /SDH)
Accumulation Bate (a)*{b) Travel Fraction
73600
73600
69900
63300
56600
50000
45600
41200
38200
36000
34600
33800
33100
32400
30900
28700
25700
21300
18400
15400

5667.2
9936.0
9366.6
8292,3
5603.4
4500.0
3739.2
2554.4
1719.0
1188.0
865.0
507.0
430.3
356.4
309.0
229.6
179.9
127.8
92.0
61^6
SUB: 55724.6
0.102
0.178
a. 168
0.149
0. 101
0.081
0.067
0.046
0.031
0.021
0.016
0.009
0.008
0.006
0.006
0.004
0.003
0.002
0.002
0.001


-------
                        TABLE IV-5*

                DVEBXGE CUBULATIVE HILEAGE
                  BT VEHICLE AGE - July 1
             A<[e __ tX51i_   HJ^!,!i!iLJ5i.

                    1             ' 18*400
                    2              73bOO
                    3             136738
                                 216275
                    S             279S62
                    6r             33bl7B
                    7             38fcSO
                    6             H320SO
                    9             H73U2S
                   10             511725
                   11             5<47825
                   12             582500
                   13             616312
                   14             649412
                   Ib             681712
                   16             712525
                   17             7U1125
                   18             766650
                   19             788137
                   20             806525
the cethodology for  calculating average cumulative  mileage
  is presented in Appendix G.

-------
                             JV-6
         SPEED CCmiECTICN  FACTOR COFIFICIFNTS
       FOR  MiSEL-POWLFED  HEAVY-DUTY  VEHIC1ES

TOR ALL  REGIONS MCiPT  rALIFOKMJA AND  HI &b-AL71?UDE
ret FL
                                                  A
      	L	C	

      -C.OU3  O.OOOfc

0.720 -0.0 !>U  0. COOS'

1.000 -0.07U  O.OOU
 197U-1r'78
0.9HO  -0.
                             O.OOOU
0.820  -O.OS1  C.0005

1.200  -0.072  0.0006
                         i.ano -o .o<*i  o.oc to

                         1.200 -O.C72  O.OOCt

                               -0.068  C.OOCt

-------
                     TABLE IV-7
                IDLE EBISSIO* RATES
             HEAVI-DOTY DIESEL VEHICLES
  FOR ALL AREAS EXCEPT CALIFORNIA AMD HIGH-AlfITODE
POLLUTAIT
HC
HC
HC
HC
CO
CO
CO
CO
NOX
VOX
vox
vox
NODEL TEAR
PBE-1971
1974-1978
1979-1982
1983 +
P8E-197U
197-1978
1979-1982
1983 +
PRE-1974
197H-T978
1979-198M
198S +
HEW fEHICLE
EHISSIO* RATE
0.50
0.40
O.ftO
0.25
1.32
o.ee
0.66
0.66
1.11
1.00
0.99
0.27
DETERIORATION BATE
(PER 10,000 RILES)
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
_
The Idle Emission Factor is calculated fton
the linear equation C  a + b. where C is  the
idle emission factor for a vehicle with
cumulative aileage K, a and b are the factors
listed in the above table, and 1 = R/10000.

-------
                                 TABLE IV-8
             COEFFICIEHTS  FOB  AVG. WEIGHT AMD AVG. WEIGHI/C1D
                  FOB D1ESEL-POWEBED HEAVI-DOTY VEHICLES

           FOB ALL REGIONS EXCEPT  CALIFOBKIA AND HIGH-ALTITUDE
	|	HIDE OCA BBOBS	
HO DI 1I1A81bObtb 2
 PBE-197I

   197H*
2.0S8 -0.005 -0.01M

0.893  0.015 -0.006
                      CAB BO it  H010XIDE	
                       bO      bl     b2"
-0.533 -0.030  0.0ft3

-0.299  0.030  0.003
                        MITBOGEOXIDES
0.085  0.020  0.002

0.138  0.023  0.001
                P(lpnoq)  =  bO  *  b1(WT/tOOO)  + b2(MT/ClD)

 This correction factor is  applicable only to diesel-powered HDYs with
 weights ranging fro*  19000 to  55000 pounds and CID of 540 to 600.

-------
                     TABLE V-l
               EXHAUST ERISSIOR BATES
                     ROTORCYCLES
  FOB ALL ABEAS EXCEPT CALIFOBRIA AND HIGH-ALTITODE
POLLUTANT
HC
HC
HC
HC
CO
CO
CO
CO
ox
BOX
OX
Ox
~
HODEL TEAS
PBB-1978
1978-1979
1980-1982
1983+
PBE-1978
1978-1979
1980-1982
1983*
PRE-1978
1978-1979
1980-1984
198S +
i 	 A 	 IGfl^5iiIl_J
~~IEW VEHICLE
ERISSIOI BATE
8.96
ft. 70
3.82
0.29
34.40
20.27
14.86
2.71
0.14
0.28
0.56
0.04
DETER10BATIOH BATE
(PEB 10,000 RILES)
^*
T.17
1.03
1.03
0.23
1.54
4.00
4.00
2.00
0.00
0.00
0.00
0.22
The Exhaust Emission Factor is calculated tiom
the linear equation C = a  bY. where C is the
exhaust emission factor for a vehicle with
cunulative nileage R. a and b ace the factors
listed in the above table, and I = H/10000.

-------
TAbLF,  V-2

        FACTORS FOR  MOTORCYCLES
               1D-TEAR EXHAUST iniS
                              HYDROCARHOKS
             FOK  ALL REGIONS tXCEPT CALIFGH1IIA  AND H i CH -A LTITU D I
jr-or.f LI
*FAfc (1970
m 1
IS* 2
1952
1954
1955
19*f
1957
iq^f
1559
19t C
15f 1
15t 2
15f 3
19fck
19* 5
T O t, ti
I J W C)
15* 7
19( f
19^
197C
197 1
1972
1973
197*4
1975
197f
1577
197 f
1979
19f C
19^1
19fc 2
19^3
19P5
19P*
12. it
12.2
12.1
1 1.9
11.8
11.6
11.5
11.3
11.2
1 1.0
10.9
10.7
10.5
10.3
10. 1
9.9
9.7
9.5
9.2
9.0















: *9 7j
I 1s'! f. J
(19;-"!
1971

12. a
12.2
12.1
11.9
11.8
11. fc
11. S
11.3
11.2
11.0
10.9
10.7
10.5
10.3
10. 1
9.9
9.7
9.5
9.2
9.0

















1972


12. 4
12.2
12. 1
11.9
1 .fc
l.b
1.5
1.3
1.2
1.0
10 . 9
10.7
10.5
10.3
10.1
5.9
9.7
5.5
9.2
9.0
















CA LF,
1973 197U



12. 
12.2 12. 4
12.1 12.2
11.9 12.1
1 1 . fc 11.9
11. fv 1 1 .8
11.5 1 1 .fc
11.3 1 1.5
11.2 11.3
11.0 11.2
10.9 11.0
10.7 10.9
10.5 10.7
10.3 1C . 5
10. 1 1C. 3
9.9 10.1
9.7 9.5
9 . f 9.7
q . 2 9.5
9.0 9.2
9.C














MDAF 1EA8 -
197L 197fc





12. a
12.2
12.1
1 1.5
11. b
11.6
11.5
11.3
11.2
11.0
10. S
1 0 . 7
10.5
If .3
10. 1
9.9
9.7
9.5
9. 2
9. C













*





12. i.
12.2
12. 1
11.9
11. b
11. fc
1 1 .5
11.3
11.2
11.0
10.9
1C. 7
It) . b
10.3
10. 1
9.5
9.7
9.5
9.2
9.0












Julj 1
1977







12. i*
12.2
12.1
1 I.*1
1 l.fc
1 l.b
11.5
11.3
11.*
1 1 .t
10.5
10.7
10.5
10.3
10.1
5 .5
9.7
0 I
*  '
9.2
9.0











1978








12. U
12.2
12.1
11.9
11.8
1 1 .6
11.5
11.3
11.2
n.o
10.9
10.7
10.5
10.3
10. 1
9.9
9.7
9.5
9.2
4.8










1979









12. U
12.2
12.1
11.9
11. b
11. b
11 .5
11.3
11 .2
11.0
10. <
10. 7
1L . s
10.3
10. 1
9.9
9.7
5.5
4.9
.fc









1980










12.4
12.2
12.1
11.9
1 1 .8
1 1 .b
11 .5
11 .3
11.2
1 1 .0
10.9
TO./
10.5
.0.3
10.1
9.9
9.7
5.2
" .9
3.9








IVt 1











12.4
U .2
U.I
11.9
11. b
11. t
11 .5
1 1.3
1 1 .2
1 1.0
1C.1*
10.7
10.5
10.3
10. 1
9.9
b.4
5.2
4.0
3.5







*j;fISSIOH  FACTORS  FOB VEHICLES THROUGH  HODEL YEAR 1975 AND  THROUGH
 CAltKDAR  YFAfi  1975 ARE BASEl  OX ACTUAL TESTS OF  1U - US E  EHICLES.
 I-CST-197S CJlLEHDAR YEAB tHISSlOH FACT01.S FOP ALL VI.H1CLES  ARE PROJECTED.

-------
                 TABLE V-2  (FOF CALENDAR  1EARS 1982-1993)

               BID-YEAR EXHAUST EBISSIOW  FACTORS FOB BOTORCICLES
                            HYDROCARBONS  (GB/fflJ
            FOR  ALL  REGIONS EXCEPT CALIFORNIA AID HIGH-ALTITUDE
RODELj
TEAB
-
19fc3|
19661
19651
1966|
19671
19681
19691
1970|
1971|
1972|
1973J
197ftf
19751
1976|
1977J
1978|
1979|
19801
1981|
1982|
1983J
198ft|
19851
1986f
1987|
19881
1989|
1990|
1991|
1992|
1993|
1982
12. ft
12.2
12.1
1 .9
1 .8
1 .6
1 .5
1 .3
1 .2
1 .0
10.9
10.7
10.5
10.3
10.1
5.6
5. a
ft. 3
1.0
3.9











1983
12. ft
12.2
12.1
IT. 9
11.8
11.6
11.5
11.3
It. 2
11.0
10.9
10.7
10.5
10.3
5.7
5.6
ft. 5
ft. 3
ft.O
0.3










198ft
12. ft
12.2
12.1
11.9
11.8
11.6
11.5
11.3
1.2
11.0
10.9
10.7
10.5
5.9
5.7
ft. 7
ft. 5
ft. 3
0.3
0.3









1985
12. ft
12.2
12.1
11.9
11.8
11.6
11.5
11.3
11.2
11.0
10.9
10.7
6.1
5.9
ft. 9
ft. 7
ft. 5
O.ft
0.3
0.3








CALENDAR TEAB - July 1
1986 1987 1988 1989
12. ft
12.2
12.1
11.9
11.8
11.6
11.5
11.3
11.2
11.0
10.9
6.2
6.1
5.0
ft. 9
ft.7
O.ft
O.ft
0.3
0.3







12. ft
12.2
12.1
11.9
1.8
1.6
1.5
1.3
1.2
1.0
6. ft
6.2
5.2
5.0
ft. 9
0.5
O.ft
O.ft
0.3
0.3






12. ft
12.2
12.1
11.9
11.8
11.6
11.5
11.3
11.2
6.5
6. ft
5.3
5.2
5.0
0.5
0.5
O.ft
O.ft
0.3
0.3





12. ft
12.2
12.1
11.9
11.8
11.6
11.5
11.3
6.7
6.5
5.5
5.3
5.2
0.6
0.5
0.5
O.ft
O.ft
0.3
0.3




1990

12. ft
12.2
12.1
11.9
11.8
11.6
11.5
6.8
6.7
5.6
5.5
5.3
0.6
0.6
0.5
0.5
O.ft
O.ft
0.3
0.3



1991


12. ft
12.2
12.1
11.9
11.8
11.6
6.9
6.8
5.8
5.6
5.5
0.6
0.6
0.6
0.5
0.5
o.
O.ft
0.3
0.3


1992



12. ft
12.2
12.1
11.9
11.8
7.1
6.9
5.9
5.8
5.6
0.7
0.6
0.6
0.6
0.5
0.5
O.ft
O.ft
0.3
0.3

1993




12. ft
12.2
12.1
11.9
7.2
7.1
6.0
5.9
5.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
O.ft
O.ft
0.3
0.3
4ERISSIOI FACTORS FOR VEHICLES THROUGH HODEL TEAR  1975  AMD THROUGH
 CALENDAR TEAR  1975 ABE BASED Oil  ACTUAL TESTS OF  II-USE VEHICLES.
 POST-1975  CALENDAR TEAR ERISSIOH  FACTORS FOR ALL  VEHICLES ARE PIOJECTED.

-------
                                   TABLE -3

               BID-YEAR EXBADST  EBISSION FACTORS FOR  BOTORCYCLES
                          CAR BOM  nOlOXIDE (GO/HI)
             FOR  AL1 REGIONS EXCEPT  CALIFORNIA AND RICH-ALTITUDE
(BOCEL
(YEAR
	 1
|1951|
|1952|
119531
1955|
|1956|
I1957J
J1958I
|1959|
1 1960)
119611
J1962I
|1963|
|1964|
|1965|
|1966l
I1967J
(19681
(19691
|1970|
M971I
|1972|
M973J
| 1974 |
|1975|
|1976|
119771
|1978|
| 1979|
11960!
|1981!
|1982|
|19B3!
f1986|
f 1987|
{ 1988|
I 19P9J
I 1990|
1
[1970
38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35. H
35.1
31.7
3ft. 5


















1971
38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
31.7
31.5

















1972
38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.1
35.1
34.7
34.5
















1973
38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
34.7
31 .5















CALENDAR YEAR - July 1
1974 1975 1976 1977
38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
34.7
34 .5














38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
34.7
34.5













*
38.9
38.7
38.5
38.3
J8.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
34.7
34.5












38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
34.7
34.5











1978

38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
34.7
20.5










1979


38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
35.1
21.1
20.5









1980



38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
35.4
22.1
21.1
15.1








1981




38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
36.0
35.7
22.9
22.1
15.7
15.1







*iniSSIOII FACTORS FOR VEHICLES  THROUGH  RODEL YEAR  1975  AMD THROUGH
 CALENDAR YEAR  1975 ARE BASED 01  ACTUAL TESTS OF II-USE VEHICLES.
 POST-1975 CALENDAR YEAR EBISSION  FACTORS FOR ALL  VEHICLES ABE PROJECTED.

-------
     TfiFLE V-i   (FOK CALENDAR  TEARS  19^.2-1(9^3}
  flID-TEAR  EXHAUST .EMISSION  JACTORS FOR  BOTORCTCLES
               CAShON KONGXIDE {GB/HJJ
FOB  ALL REGIOUS  EXCEPT  CALIFOHHIA  AND  HICK-ALTITUDE
flOFEl
YOR
I
19t 3|
T965J
1967f
1968J
1970|
1971J
1972?
I973J
1974 |
1975|
197fcJ
1977J
197Rf
1979|
1 9 1 0 I
1981J
1982 J
19P3J
I9P4 j
19t5f
198f }
19f 7|
1 9  B S
t M ^* *5 i
"I Q Q f\ I
199 1 1
1992?
{1993!
1
|1982
38.9
33.7
38.5
38,3
37.9
31.7
37^3
37,1
36.9
36.7
36,5
36.2
36.0
2 J.fc
i 2,9
16.6
15.7
15.1











1983
38.9
38.7
38.5
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36.7
36.5
36.2
24 . 3
23,6
17B5
l&.fc
15,7
2.8










1984 1985
38.9
38.7
38. S
38.3
38.1
37.9
37.7
37.5
37.3
37.1
36.9
36 . 7
36.5
25,0
24.3
T8.2
77.5
Ife.fc
3.1
2. .8









38
38
38
38
38
37
37
37
37
37
36
3fc
25
,?5
18
18
17
3
3
2








.9
.7
t,
 ~*
.3
.1
.9
.7
.5
.3
.1
.9
.7
.6
 3
,9
,2
.S
.b
. 1
. iJ








CALFJI
38.9
38.7
38.5
38.3
38.1
37.9
57,7
37.5
37.3
37.1
36.9
26.2
2 5 . 6
19.6
re .9
18.2
tt.O
3.6
3*1
2.8







CAR YESR - July 1
1987 1988 1989
38.9
38.7
38.5
38 . 3
38, J
37.9
37,7
37.5
37.3
37.1
26.8
26.2
20. 2
19.6
18.9
H c<4
4.0
3.6
3. l
2.8






38.7
38,5
.38.3
38. 1
37.9
37.7
37.5
37. J
27.3
2 If. 8
20. 8
FC ON  ACTUAL TEST'S
 POST- 1975 CALIWDSB Ji'ftri 'Eili5>>C-rt  f ft <.."',-,> "C",
                                             ?97!> ftMD THBOUGH
                                        OF  I* -USE  ^EHICtES,
                                        ? 1, ,,  '.'I'.U'IFS &KI  r^.^

-------
                                    TABLE V-i

               niD-IElB  EXHAUST EHISSIOS FACTORS  FOB  HOTORCYCLES
                           KITBOGE*  OXIDES (GH/HI)
             FOR LL  REGIONS EXCEPT CALIFOBNIA AID  HICB-ALT1TODE
BOD EL|
IEAB I
1951|
19521
1953J
1S5M
1955|
1956|
1957|
1956J
1959 |
1960J
1961f
1962J
19631
196U|
19651
19t6|
1967J
1968|
I969J
1970S
197Tf
19?2{
19731
19?i*J
19751
197fc|
1977J
1978J
19791
1980|
1981|
19? 2f
19P3|
198* {
1985|
1986 |
1987!
196E j
19891
1990f
1970
0.1
0.1
0.1
0.1
0.1
0.1
0.1
o.t
0.1
0.1
o.i
0.1
0.1
o.i
0.1
0.1
o.i
0.1
0.1
o.i












1971
0.1
0.1
0.1
0.1
0.1
0.1
o.i
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
o.i
0.1
0.1
o.i
0.1











1972
0.1
0.1
0.1
0.1
o.i
o.i
o.i
0.1
o.i
o.i
0.1
0.1
0.1
0.1
o.i
o.i
o.t
o.i
0.1
o.i










1973
0.1
o.i
o.i
o.i
o.i
o.i
0.1
o.i
o.i
0.1
o.i
0.1
0.1
o.i
0.1
0.1
0.1
o.i
0.1
o.i









CALEHDAE YEAR - July 1
197U 1975 1976 1977
0.1
0.1
0.1
o.i
0.1
0.1
o.i
0.1
0.1
o.i
0.1
o.i
o.i
0.1
0.1
O.I
0.1
0.1
0,1
0.1








0.1
o.i
o.i
o.i
0.1
o.i
0.1
0.1
0. 1
0.1
0. 1
o.i
0.1
0.1
0. 1
0.1
o.i
0.1
0.1
o.i







*
0.1
o.i
0.1
0.1
o.i
0.1
0. 1
o.i
0.1
0.1
o.i
0.1
0.1
o.i
0.1
0.1
o.i
0,1
0.1
0. 1






o.i
0.1
0.1
0. 1
o.i
o.i
o.i
0.1
o.i
0.1
0.1
0.1
o.i
o.i
0.1
o.i
0.1
o.i
o.t
0.1





1978

0.1
0.1
0.1
0.1
0.1
0. 1
0.1
0.1
o.i
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0. 1
0. 1
0.1
0,3




1979


0.1
o.i
o.i
o.i
0. 1
0.1
0.1
0. 1
0.1
0.1
0.1
o.i
0.1
0. 1
0,1
0.1
0. 1
0.1
0,3
0,3



1980



0.1
0.1
0.1
o.i
0.1
0.1
0.1
0.1
0.1
0.1
0*1
0,1
0.1
0.1
0.1
0.1
0.1
0,3
G3
O.fe


1981




0.1
0. 1
o.t
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.3
0,3
0.6
0.6

*EFJSSIOM  FACTORS FOR  VEHICLES THROUGH  HODEL YEAR  197b AMD THROUGH
 CALFBDAR  YEAB 1975 ABE  BASED OH ACTUAL TESTS OF  IK-DSE VEHICLES.
 POST-1975 CALENDAR TEAR  ERISSIOK  FACTORS FOR ALL  VEHICLES ARE  PROJECTED,

-------
                 TABLE ?-
-------
              TAB1E Y-5

TRAVEL WEIGHT IMG TACTOB CALCU1ATIO*

             HOTOHCTCLES

Yeh icle
Age
1
2
3
it
5
6
7
8
9
10
11
12
13
lit
15
16
17
18
19
20

(a)
Fraction Total
Reqf yt rat ion
0^10 5
0.225
0.206
0,149
0.097
0.062
0.046
0.033
0.029
0.023
0.008
0.005
0.013
0.000
0.000
0.000
0.000
0.000
0.000
0.000

(b)
Annual Mileage
Accumulation Rate
2010
2510
2070
1850
mo
1620
1550
1490
1430
1390
1350
1320
1290
0
0
0
0
0
0
0
SUB
                                  211.0
                                  564.7
                                  126 .4
                                  275.6
                                  166.8
                                  100.<4
                                   71.3
                                   49.2
                                   41.5
                                   32.0
                                   10.8
                                    6.6
                                   16.8
                                    0.0
                                    0.0
                                    0.0
                                    0.0
                                    0.0
                                    0.0
                                	0*0.
                                 1973.2
Tjc aje.l_F.ra c t^o n
     0.107
     0.286
     0.216
     O.UO
     0.085
     0.051
     0.036
     0.025
     0.021
     0.016
     0.005
     0.003
     0.006
     0.000
     0.000
     0.000
     0.000
     0.000
     0.000
     0.000

-------
                        TABLE -51

                AVERAGE CUMULATIVE  RILEAGE
                  Bl  VEHICLE AGE  -  Jaly  1

                       HOTOBCICLES
1
2
3
4
5
6
7
8
9
to
11
12
13
14
15
16
17
18
19
20
503
2073
4465
6563
8424
10147
11771
13322
14812
16245
17635
18986
20306
21597
22867
24117
25349
26569
27779
28979
The methodology foe  calculating average cunulative nileage
  is presented in Appendix G.

-------
                              TABLE -6

                    General Formula for Ripstwx

     The general foriula for the speed-teperature-hot/cold correction
     factor* Ripstwx,. for BOTOBCTCIES is given by:

               Kipstx = (BAG1TEBH_ + BAG3TERB * BAG2TEBH)
                                      DEOP!
where (using * for multiplication and exp for exponential  function):

                                   c * d*A)*(v(2.s1)/v(2,26))
                                   e  f*A)*(v(g,s3)/v{g26))
                                   h * j*A}*(v(g.s2)/v(g,16))
w
X
BAG1TEBH =
BAG3fEiB *
BAG2TEBH - (1-w-x)*(
DENOn    = (dO * d1*A)
                         * (exp (a-b*T)
                         * (
w -- fraction of total ailes which are driven in cold start  condition
x - fraction of total eiles which are driven in hot  start condition
T = arbient teaperatare (F)
A = vehicle age minus 1. in years
g = index for odel-jear/tegion groups; see Table  l-6a
&1,s2,s3 = average speeds  (niles/hour) for bags 1, 2r and 3
v(g,si) = bag-specific speed correction factor; see  Appendix  B

and where:
  a,tcrd,e,f,h,j,dO, and dl are constant coefficients  which  are
    functions of aodel-year group and pollutant, as  follows:
Pol
HC
HC
HC
HC
CO
CO
CO
CO
ox
 OX
0x
iOs
iEqn
	
1
2
4
1
2
3
4
1
2
3
Jt
a
2.9310
2.9310
2.4339
1.9934
5.6548
5.6548
5.5460
4.2391
-100.
-100.
- too 
-100.
1 .. _
b |
.0147791
.0147791
.023591
.022269)
.015965
.0159651
.028945J
,017522j
0.0 1
0.0 {
0.0 1
0,0 i
\
\ c | d i e
| .673| .569J 4.75
| -2.41| .863| 2.43
| .623| .301J 1.11
-.032| ,445| .497
_ - -( |
|-14. 74J 9.62| 42.84
-33.89J 9.77J 25.26
| 11.29J 4.24| 15.85
| -.20 I fe.99| H.12
1.14 | 0.0 | 1.25
1 1.16 f 0.0 | 1.26
i 3X21  .335f 2.99
3. OS I ,318| 2.88
f i . i
t \
.3931
.555
.284
.357|
5.76
4.71|
2.34
2.20
0.0 |
0.0
.184J
.180
I
h
	 _
5.69
1 2.61
1.05
[ .243
	
[ 57.57
35.90
1 21.17
[ 3.96
	
! 0.81
I 0.80
1.89
2.01
\ _
j I dO | dl i
.4711 5.67| .47|
.597t 2.80| .64|
.270J 1.38| .28|
.175| .54| .28|
7.74t56.43|7.59|
6. 70J36. 40|6.79|
3.13f23.70|3.14|
2.12| 6.9813.141
0.0 | 1.0 | O.Of
0.0 I 1.0 | 0.0|
.116J 2.47| .18|
.126| 2.461 .18|
 1 I _I
1
1f m

t
2
3
4

a.
i
i
*"
i
i
i
i
_J_
Used tor Kodel Years:
For HC and CO | For ROx
l-r*-1978
Post- 1977
ot Used
Net Used
Pre-1978
Post-1977
Rot Used
lot Os ed

-------
                     TABLE V-6a

         Specification of Speed Terns  (Vg)
      Used in the General Formulas  tot  Ripstvx

                     nOTORCYClES

  FOB ALL AREAS EXCEPT CALIFORNIA AID HIGH-ALTITUDE

Vehale_Grou                            U J|ej[erenc_e	(3^

Lea-Altitude Pre-1978                      Group  2

Low-Altitude 1978*                         Group 17

-------
                     TA8LE -7
                IDLE EHI5SION BATES
                     ROTORCYCLES
  FOB All AREAS EICEPT CALIFORIIA AND HIGH-ALTIIODE
POLLUTABT
_-...   ~~_-.
HC
HC
HC
HC
CO
CO
CO
CO
MOX
MOX
VOX
MOX
	
HODEL TEAK
PRE-T978
1978-1979
1980-1982
1983*
PHE-1978
1978-1979
1980-1982
1983*
PRE-1978
1978-1979
1980-198l
1985*
MEW VEHICLE
EBISSIOV BATE
.05
2.12
1.72
0.13
8.27
1.87
3.57
0.65
0.01
0.02
0.04
0.01
DETERIORATION BATE
(PER 10,000 RILES)
0.3fc
0.62
0.62
0.10
1.28
1.12
1.12
0.18
0.00
0.00
0.00
0.01
The Idle Enission Factor is calculated Icon
the linear equation C * a * bY, where C is the
idle emission factor for a vehicle with
cunulative mileage H, a and b are the factors
listed in the above table, and Y = M/10000.

-------
                      TABLE V-8

   Crankcase and  Evaporative BC Emission Factors
                       (gs/ai)

                    HOfOBCYCLES

 FOR ALL ABBAS EICEPT  C&LXFOKHIA AMD B1GH-A1TITUDE
Ho4el_Tc
-------
           APPENDIX A
Selected Speed Correction Factors

-------
Group BQher



  Group  1



  Group  2



  Group  3



  Group  
-------
SELECTED  SPEED CORRECTIOI FUCTOBS - * (ges)

POl
HC
HC
HC
BC
RC
HC
HC
RC
RC
HC
HC
BC
HC
HC
HC
HC
HC
8C
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
MOx
MOx
MOx
MOx
MOx
BOX
MOx
MOx
NOx
MOx
KOx
MOx
MOx
MOx
MOx
NOx
MOx
MOx

GR
1
2
3
4
5
f,
7
8
9
10
It
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

5.0
3.107
3.297
3.083
3.470
3.419
3.123
3 . 160
2.700
2.902
3.040
2.798
2.928
2.705
3.276
2.815
2.763
3.963
3.194
2 .339
3 .319
3 .656
3.621
4.554
4.511
4.174
2.345
2.277
2.541
2.516
2.885
3.791
4.056
2.599
3.386
4.239
2.988
1.505
1.242
0,990
1.063
0.978
0.927
1.003
1.264
1.143
1.324
1.181
1.014
0.589
0.999
1.082
0.856
0.808
0.816

10.
1.679
1*749
1.708
1.808
1.773
1.694
1.709
1.548
1.599
1.650
1.571
1.624
1.547
U726
1.582
1.576
U931
U708
1.463
1 ,,751
1.857
1.845
2.120
2.103
2.003
1.418
1.395
1.488
1.474
1,540
t.916
1.950
1.459
1.746
1.980
1.58 1
1.060
T.031
0.946
0.992
0.970
0.924
0.949
1.006
0.967
0.998
0.981
0.860
0.806
0.903
0.907
0.943
0.864
0.819

15 .
1.201
1.224
1.218
1.246
1.231
1.208
1.215
1.160
1.169
1.191
1. 169
1.186
1.164
1.217
1.172
1,181
1.285
1.228
1.142
1.225
1.251
1.253
1.329
1.326
1.299
1.121
1.1 13
1.1t49
1. t48
1.149
1.291
1.281
1.127
1.239
1.293
1.183
0.940
0.974
0.960
0.980
0.981
0,956
0.960
0.944
0.944
0.930
0.946
0.887
0.934
0.924
0.909
0.986
0.934
0.897

20.
0.987
0.986
0.985
0.984
0.985
0.987
0.986
0.991
0.988
0.990
0.990
0.990
0.987
0 . 986
0. 990
0.989
0.981
0.984
0.991
0.986
0.985
0.984
0.979
0^979
0.975
0.992
0..993
0..990
0,S989
0.991
0.980
0..982
0..992
0.985
0,. 981
0.986
1.009
1.004
1.004
1.003
1.002
1.004
1.004
1.008
1.007
1.010
1.007
1.012
1.004
1.008
1.010
1.001
1.006
1.009
SPEll
25.
0.859
0.844
0.840
0.821
0.834
0.653
0.845
0.890
0.889
0 .870
0.878
0.873
0.869
0.845
0.877
0.849
0.784
0.803
0.889
0 .841
0.838
0.824
0.780
0.777
0.776
0.905
0.912
0.873
0.863
0.892
0.771
0.804
0.900
0.797
0.782
0.821
1.161
1 .073
1.058
1.038
1.026
1.056
1.059
1.128
1. 105
1.153
1. 109
1.174
1.043
1.112
1. 148
1.002
1.069
1.124
) (HPH)
30.
0.761
0,740
0.732
0.700
0.720
0.754
0.740
0.813
0.817
0.778
0.789
0.785
0.770
0.736
0.789
0.731
0.635
0.653
0.803
0.733
0.738
0.707
0.644
0.637
0.633
0.826
0.840
0.769
0.746
0.805
0.612
0.675
0.8 14
0.643
0.63M
0.671
1.319
1.146
1.109
1.075
1.049
1.102
1.110
1.255
1.201
1.296
1.214
1.330
1.070
1.209
1.280
1.000
1.121
1.222

35.
0.684
0.659
0.649
0.606
0.630
0.677
0.658
0.750
0.759
0.705
0.717
0.714
0.690
0.651
0.719
0.637
0.523
0.540
0.733
0.650
0.664
0.619
0.543
0.532
0.527
0.760
0.779
0.684
0.650
0.730
0.496
0.578
0.739
0.529
0.525
0.557
1.439
1.203
1.150
1.105
1.070
1.141
1.150
1.359
1.275
1.411
1.300
1.454
1,097
1.2B2
1.382
1.002
1.161
1.294

to.
0.629
0.600
0.590
0.538
0.565
0.622
0.600
0.706
0.716
0.653
0.668
0.664
0 .636
0.590
0.671
0,575
0.447
0.468
0.686
0.591
0.609
0.556
0.469
0.457
0.453
0.716
0.742
0.628
0.590
0.679
0.420
0.510
0.690
Oa460
0.454
0.492
1.510
1.239
1.182
1.129
1.091
1.173
1.180
1.429
1.323
1.481
1.361
1.542
1.132
1.332
*.451
1.014
1.193
1 .344

15.
0.598
0.564
0.553
0.497
0.526
0.590
0.567
0 .,6 85
0.693
0.625
0.646
0..639
0.6 11
0.555
0..648
0.546
Q.,401
0.433
0..666
0,556
0..574
0.517
0 .417
0 .407
0 .406
0 .702
0.736
0.607
0.566
0.659
0 .378
0 .470
0.675
0.428
0.4 15
0.475
1.549
1.265
1.213
1.152
1.115
1.206
1.207
1.477
1.358
1.526
1.407
t606
1.175
1.370
1.501
1.036
1.226
1.386

50.
0,585
0.547
0.531
0.472
0.504
0.575
0.551
0.683
0.688
0.615
0.640
0.632
0.604
0.539
0.64U
0.534
0.373
0.4 16
0.664
0,538
0.555
0.493
0.384
0.374
0.376
0.710
0.754
0.607
0.564
0.660
0.354
0.452
0.681
0.4 12
0.395
0.477
1.606
1.306
.258
.189
.15.1
.250
.250
.531
1.406
1.584
1.463
1.678
1.221
1.421
1.51.3
1.067
1.274
1.446

55.
0.571
0,530
0.500
0.445
0.479
0.556
0.528
0.678
0.683
0.6CI3
0.619
0.622
0.581
0.520
0.632
0.501
0.337
0 . 37 5
0.648
0.517
0,544
0.465
0.358
0.345
0.341
0.700
0.756
0.5S8
0.531
0.646
0.323
0.437
0.660
0.361
0.364
0.433
1.761
1.404
1.3*1
1.257
1.208
1.323
7.331
1.641
1.5T1
1.723
1.570
1.810
1.258
1.526
1.691
1.103
1.353
1.560

60.
0.516
0.481
0.426
0.381
0.414
0.494
0.459
0.622
0.640
0.546
0.528
0.563
0.485
0.457
0.557
0 .387
0.258
0.261
0.559
0.4b3
0.517
0.399
0.323
0.299
0.273
0.599
0.661
0.677
0.394
0.542
0.245
0.392
0.529
0.228
0.279
0.264
2,126
1.615
1,490
1.384
1.298
1.445
1.483
1.877
1.733
2.034
1.787
2.C70
1 ,268
1 .,737
1 .934
1 . 1.ff>
1 .486
1.777

-------
                 SELECTED Si*tiJ i. O R& t" C'T iuM FACTORS - -*{gss5

                                 M'titD  {J*PH}
POL G   6,0    11.    16,   21.     26.    31.   36,   41.    46.    SI.   56,   61.
 KC   1 2.662  1.544 1.U6 0.957 0.837 0.7*4 0.671 0,621 0,59ft  0.583 0,565 0.496
 HC  2 2.816  1,601 1,163 Q.953 O.21 0.722 0,6*s5 0.591 0.560  0.544 0.524 0 ,,464
 C  3 2.662  1.572 1.159 0.951 O.e6 0.753 G6 0,fe2*4 0.71C 0.622 0.567 0S543  0.531 0.437 0.352
 HC 17 3.309  1.748 1,209 0,937 0.751 0,610 0.505 0.435 0,395  0.368 Q .32fe 0.235
 HC 18 2.717  1.573 1.169 0.945 0.771 0.627 0R522 O.U59 0,429  Q.t*11 0,359 0.229

 CO   I 2.105  1,373 1.104 0,'J66 O.?t 0.788 0.721 O.fcSO 0.665  0,663 0.638 0.527
 CO  2 2.829  1.602 1.163 0.9S2 0,81? 0.715 0.636 0.582 C.,532  0..535 0.509 0.432
 CO  3 3.096  1.685 1.187 0,950 0,8'5 0.722 0.651 0,,bOO 0,569  0,553 0,541 Oa507
 CO  4 3.063  1.678 1.184 0.9*6 0,798 0fc88 0,605 0^547 0,511  0,489 0.456 0.379
 CO  5 3.784  1,896 1.238 0.932 0.749 0.621 0.52fe 0.45? 0.409  O.J78 0.352 Q.,313
 CO  6 3.745  1.882 1.237 0,931 0,>4fc 0,613 0,515 0.445 0.399  0.369 0.338 0.285
 CO  7 3.482  1.804 t217 0,929 0.74*1 0.609 0.509 On441 0.399  0.370 0.331 0.254
 CO  8 2.054  1.333 1.088 0.973 0,889 0.812 Q.7<5<9 0.711 0,703  0.711 0.690 0.562
 CO  9 2.001  1.313 1,082 0.975 0,898 0.827 0.770 0.73B 0,739  0.758 0.747 0.623
 CO tO 2.208  1.392 1.110 0,965 0,852 0,750 0,670 0,622 0,606  0.&0? 0.576 00440
 CO 11 2,183  1.381 1.110 0,963 0,S39 0.724 0,635 0.582 0 ,S6S  0.562 0.51*1 0.3S2
 CO 12 2.447  1.425 1.107 G9fc9 0,B? 0,788 0.11? 0.672 0 ,t58  0.661 0,635 0.505
 CO 13 3.196  1,742 1.215 0.933 0.735 0.585 0.477 0.409 0.372  0.350 0.312 0,222
 CO 14 3,383  1.759 1.204 0.941 0.7/5 06S3 0.562 0,500 6,46S  Q.4S9 0,432 0.376
 CO 15 2.228  1,361 1.092 0,972 0.882 0,797 0*72? 0,684 0.6 IS  0.681 0,645 0.485
 CO 16 2.850  1.603 1,178 Q.5-44 0.7*,:; 0.617 O.bU 0.&15? 0.425  0,406 0.342 0,194
 CO 17 3.500  1.78J 1.214 0.9JS 0.749 0,609 0.500 C*<4s 0,411  0.391 0.353 0.253
 CO 18 2.516  1,465 1U137 0.952 0,789 0.644 0.540 0.486 0.475  0,575 0.410 0,220

WOx   1 1.382  1.015 0.943 1,036 1.193  1.347 1.456 1.520 U5S?  1.626 ?,813 2,236
*0x  2 t.,184  1.010 0.975 T.OIfc t.,089 1.159 1.2M 1,244 1.271  1.320 1.435 1.677
HO*  3 0.975  0.945 0.967 1,015 1.069 1.718 1. 1 .V/ 1,188 1,220  1.271 1.364 t.53Q
HO*  4 1.043  0.986 0,983 1.009 1,04*, 1.081 1.110 1.133 1,158  1,199 1.277 1.419
WOx  5 0.975  0.971 0.985 1,006 1.030 1.053 1.074 1.095 1.121  1..K60 1.223 1.321
MOx  6 0.923  0.929 0,965 1.014 1.065 1.111 *14& 1.179 1,213  1.262 1.343 1.478
MOif  7 0.985  0.947 0.967 1.015 1.070 1.11S falVI 1.185 1,214  1.2&2 1.354 1.525
MOx  8 1.206  0.980 0.94* 1UQ29 1.15a 1,278 !.j?6 1.440 t.486  1,546 1.675 1.94?
OM  9 1.092  0.952 0.951 1.025 1.125 1.217 1,286 1,331 1.365  1.421 1 _54*S 1.798
HO* 10 1.232  0.967 0.937 1,036 1.18* 1.324 !e28 1.491 1.534  1.603 1.768 2,126
BOX 11 1.124  0.964 0.953 1,025 1.130 1.233 1.31* 1.371 1.416  K478 1.603 1.849
MO* 12 0.964  0.854 0.906 1,043 1.207 1.358 1,475 1.556 1.618  1.638 1.849 2.145
MOx 13 0.642  0.837 0.951 1.014 1.049 1.075 1.103 1.1HP 1.184  t,229 1,263 1,265
0x 14 0.967  0.900 0.937 1,028 1.1J3 1.225 S.294 1.3*0 1.378  1.436 1,558 1,797
SOx 15 1.028  0.896 0.924 t.036 1.175 1.303 1.399 1.fe2 1.511  1.582 1?3G 2.030
BOx 16 0.878  0.954 0.990 1.001 1.001  1,000 1.004 1,017 1.042  1W075 1,110 1.141
KOx 17 C.817  0.877 0.949 1.019 1.08? I,i30 'J.lbS I.m 1.234  1.287 1375 1.521
POx 18 0.808  0.83C 0.918 1,033 1,145 1,2318 1,306 1.352 l39fc  T.a&3 l0?S9Jf 1.838

-------
               APPEIDII B
Coefficients foe the lornalized Equations



      for Speed Correction Factors

-------
   Hydrocarbons: *(g,s) -  exp(AO  +  s (A T + s (*2 * s (A 3 + s(A4 * s(A5))))))

Carbon flonoxide:  (g s) =  exp(AO  *  s (A 1 * s(A2 + s(A3 * s(A4 * s(AS})))

Nitrogen Oxides: v(g,s)      (AO  *  s (A 1 * s (A2 * s(A3 * s (*<))))}

where:

  AO ,A 1,A2rA3,A4. and  A5 ate  coefficients listed in table below
  g = Group laabet;  see Appendix  X
  exp = exponential  function
  *(*3s)  = speed correction  factor  for group g at speed s
        AO
A1
A2
A3
AS
GiOOP
HC =
C0=
0x*
GROUP
HC =
CO*
MOx=
GROUP
HO
C0 =
0x =
GROUP
BC =
C0 =
0x =
GROUP
HC =
C0 =
WOx =
GROUP
HC =
co=
Ox =
GROUP
HC =
C0 =
0x*
GROUP
HO
CO*
0x =
1
2.
1.
2.
2
2.
2.
1.
3
2.
2.
1.
ft
2.
2.
1.
5
2.
2.
1.
fc
2.
2.
9.
7
2.
2.
1.
8
2.
1.
1.

246tE*00
8198E*00
4442E*00

3103E*00
3399E*00
6863E*OQ

1656E00
44 15E*00
1265E*00

3973E*00
4655E*00
2268E*00

4087E00
7780E*00
0174E*QO

2322E*00
7890E*00
8760E-01

2522E*00
7074E*00
1592E*00

0278E*00
8692E+00
8866E*OQ

-2
-2
-2

-2
-2
-1

-2
-2
-3

-2
-3
-ft

-3
-3
-1

-2
-3
-1

-2
-3
-4

-2
-2
-1

.9097E-OI
.5466E-01
.50 tlE-01

.8957E-OT
.9698E-OI
,1830E-Ot

.6999E-01
.9147E-0 1
.9340E-02

.9998E-01
.0502E-0 1
.4498E-02

.0819E-OT
.19I3E-01
. 1896E-02

.8499 E-01
.2711E-01
.9567E-02

.8778E-01
.3T31E-OT
.4454E-02

.7305E-01
.7668E-0 1
.6129E-01

1.
U
1.

1.
1.
6.

1.
1.
2.

1.
1.
2.

1.
1.
9.

1.
1.
I.

1.
1.
2.

1.
1.
9.

5889E-02
5235E-02
3829E-02

5299E-02
6007E-02
5497E-03

4420E-02
4296E-02
6864E-03

6135E-02
605QE-02
6248E-03

6817E-02
53I8E-02
1437E-04

5383E-02
6294E-02
6964E-03

5682E-02
76T8E-02
9643E-03

5360E-02
7233E-02
0499E-03

-4
-4
-2

-4
-4
-I

-4
-3
-6

-4
-4
-5

-5
-4
-2

-4
-4

.7249E-04
.8740E-04
.8703E-04

.4669E-04
.7740E-04
.37I4E-04

.33641-04
.8785E-04
.08021-05

.8749E-04
.7397E-04
.6715E-05

.0684E-04
.2233E-04
.15741-05

.5674E-04
.6757E-04
-4.0400E-05

4
-5
-6

-4
-5
-1

.7318E-04
.38581-04
.6899E-05

.60301-04
.5828E-04
.85611-04

6.
7.
2.

6.
7.
1.

6.
5.
.

7.
6.
*

7.
5.
1.

6.
6.
3.

7.
8.
5.

6.
8.


9408E-06
5821E-06
0758E-06

4818E-06
0675E-06
0085E-06

5074E-06
2978E-06
7729E-07

2909E-06
9908E-06
3429E-07

5385E-06
8495E-06
8230E-07

73491-06
7 19 IE-OS
2800E-07

079SE-06
17401-06
2236E-07

7853E-06
71681-06
32S6E-06

-3.9280E-08
-4 .4951E-08
0.00001*00

-3.6346E-08
-4.0398E-08
0.00001*00

-3.7810E-08
-2.8244E-08
0.00001*00

-4.1977E-08
-3.9976E-08
O.OOOOE*00

-4.3160E-08
-3.1497E-08
0.00001*00

-3.83801-08
-3.74401-08
0.00001*00

-4.0846E-08
-4.7780E-08
O.OOOOE+00

-3.8488E-08
-5.16981-08
0.00001*00

-------
.10
ftl
A2
GROUP
HO
CO=
I0x =
GROUP
HO
co~
*0x =
GROUP
HO
co=
*0x =
GROOP
HC =
C0 =
K0x =
GROOP
HO
C0 =
*ox=
GROUP
BO
C0=
I0x =
GROUP
BO
C0=
POX =
GROUP
HO
C0 =
M0x =
GROUP
HO
CO=
OX-
GROUP
BO
co=
M0x=
9
2.
1.
T.
10
2.
?.
2.
11
2.
2.
.
12
2.
2.
1.
13
2.
2.
2.
14
2.
2.
1.
15
2.
2.
1.
16
2.
2.
7.
17
2.
2.
7.
18
2.
2.
9.

1506E+00
8213E+00
5578E+00

2302E*00
Q112E+00
01S2E+OQ
I
1223E+00
01S3E+00
632bE+00

1536E+00
3187E+00
1182E+00

0735E+00
5752E+00
U597E-0?

3495E+00
6845E+00
2817E*00

1 131E+00
15U9E+00
53S5E+00

1I91E+00
515bl00
018 1E-01

6838E+00
8393E*00
8381E-01

39511+00
t875E*00
4213E-01

-2.8362E-01
-2.7205E-01
-1.1303E~Ot

-2.936SE-01
-2.9S19E-0 1
-1.910 1E-01

-2.9107E-01
-3.1062E-01
-1.2186E-01

-2.83U5E-OT
-3.1 11SE-0 I
-1.22aiE-0 1

-2.8935E-01
-3.2889E-01
8.1T95JE-02

-3.0U96E-01
-3.3282E-01
-8.0a8?E-02

-2.8568E-01
-3.2912E-01
-1.2567E-01

-2.98b3E-01
-3.6285E-01
3.81S3I-02

-3.11b3E-01
-3.b87bE-0 1
3.2855E-01

-3.35781-01
-3.9156E-01
-1.2321E-02

1.
1.
b.

1.
1.
1.

1.
2.
7.

1.
2.
7.

t.
1.
-3.

1.
U
b.

1.
2.
7.

1.
2.
-1.

1.
2.
1.

2.
2.
3.

5380E-02
7030E-02
7183E-03

6210E-02
8b35E-02
1071E-02

69TOE-02
OU85E-02
Q302E-03

5700E-02
09t^E-02
9502E-03

7300E-02
897SE-02
1081E-03

6812E-02
7b28E-02
3571E-03

6320E-02
tOTU-02
8592E-03

8150E-02
3277E-02
7391E-03

9512E-02
1078E-02
0&03E-03

TlblE-02
7072E-02
8fa25E-03

-*
-b.

12 lUE-OU
5202E-01

b.
8.

2873E-Ob
b25t)E-06
-1.131 1E-01 1.0608E-06

-1.
~"t> m
-2.

-s.
-7.
-1.

-1.
-6.
-1.

-s.
-fe.
6.

-5.
-5.
-1.


8U15E-01
2161E-01
317SE-01

2b15E-OU
08S3E-01
Ub29E-04

b97b-0l
6S89E-01
7108E-01

bl7 1E-01
282bE-01
2988E-05

0962E-01
2ai2E-Ott
1889E-OU

-S.0079E-OU
-fe.
-1.

-b.
-8.
3.

-b.
-b.
-3.

-7.
-9.
-9.
890bE-Oft
b913E-OU

IbSlE-Ol
1SOUE-01
2felUE-OE

2S72E-01
7b1UE-0<(
1935E-05

3155E-01
7b 18I-0I
3985E-05

7.

t!59E-Ob
9.936bE-06
1.

e.
1.
1.

b.
1,
1.

8.
1.
-1.

7.
7.
S-

7.
1.
1.

9.
1.
-2.

9
1.
2.

1.
I.
7.
b837E-Ob

0271E-06
tb21E-05
0611E-Ob

9383E-06
0223E-OS
2578E-Ob

bM20-Ob
0092E-05
1397E-07

S952E-Ob
7222E-06
010bE-07

5507E-Ob
0839E-05
25U9E-0&

920bE-06
3b23E-05
0385E-07

78U1E-Ob
Ob27E-OS
9039E-07

2072E-05
bS27E-OS
5388E-07

.^^
_5
0

 U
-5
0

-4
-7
0

-3
-5
0

-b
-b
0

-U
-H
0

-1
-b
0

-b
-8
0

-5
-b
0

-7
-\
0

,tlb3 i -08
.114UE-08
.OOOOE400

,028bE-08
.9978E-08
.0000 E+00

.7012E-08
,15b9E-08
.OOOOE+00

.9171E-08
.9827E-08
.00001*00

.1311E-08
.1273E-08
.OOOOE+00

,319bE-08
.3702E-08
.OOOOE + 00

.3719E-08
.7UE-08
.OOOOE + 00

.0102E-08
.SB91E-08
.OOOOE+00

.833TE-08
.3b1 IE-08
.OOOOE+00

.1857E-08
.01321-07
.OOOOE+00

-------
           APPENDIX C
Calcnlat^ioa ot Rotor Vehicle  Emissions
              C-1

-------
                             2
       Calcalation of Regional Hydrocarbon Emissions



                    froa notor Vehicles



*   i5!.LSit ioji



     This  appendix to  the revised  motor vehicle  emission



factor  document  presents  one  procedure  for  calculating



regionwide  pollutant emissions  in  a step-try -step  manner.,



Although most users of motor vehicle emission factors should



rely on  computerized calculations, this  sample calculation



ay prove useful to those who are bee r& ing familiarized with



the methodologies presented in this document.



     For  this sample  calculation  we calculate  light-duty



vehicle hydrocarbon  emissions for a  July day in  I960.  He



assume an  ambient temperature of  80 F.  Although  this HC



calculation is not complete, it is designed to give the user



an understanding of the logical sequence of calculations.



     An inventory  of notor  vehicle sources  of hydrocarbon



emissions should  include emissions from the  four principal



vehicle categories: light-duty vehicles (automobiles) ; light-



duty  trucks;  heavy-duty   gasoline-powered  vehicles;  and



heavy-duty  diesel -powered   vehicles.   For   each  vehicle



category  the  composite exhaust  emission  factor  eguatioo



presented  in the  corresponding chapter  should be  solved.



The resultant composite emission  factors, multiplied by the



vehicles miles  of travel  (VHT)  for the  respective vehicle



categories, yield the hydrocarbon exhaust emissions from tfee



vehicle groups.   Fox total hydrocarbon  emission estimates,



the  crankcase and  evaporative HC  emissions  must also  tee



                            C-2

-------
calculated and added to the exhaust HC emissions estimates.
     Before  determining what  data are  required, the  user



should review  the FTP conditions  under which  vehicles ate



tested in order to ascertain whether these conditions differ



from the area-specific ambient  temperature, average speeds,



and vehicle operating nodes.  (See Introductions to Chapters



I, II. III. and 1VJ.



     The user  should determine the  following area-specific



data:



     1. Ambient temperature.



     2. Age-specific percent  of annual  travel for  each



        vehicle category.



     3. The VBT  or  vehicle  counts and  link lengths  by



        various transient  speed categories  (e.g.,  by 10



        nph increments).



     4. Percent of VRT in cold  start and hot start modes



        for light-duty vehicles and light-duty trucks.



     5. Any other  data  required  to utilize  additional,



        optional  correction factors.   (For this  sample



        calculation,  all other  factors  are assumed  to



        natch FTP conditions.)
                            C-3

-------
III.  Dat^a Osed to Calculate Beajonwide HC




     For this  sample calculation, the  following conditions




are applicable;




     t. ambient tewperature is 80 F.




     2. National  statistics on average annual mileage and




        vehicle tegisttation by model year will be used.




     3. The hydrocarbon emissions will  be calculated for




        only one  speed category   (30 iph}.  In actuality,




        emissions should be calculated foe selected speed




        categories,   each  speed   category  having   an




        associated trip length.  Prom transportation data




        fron our   hypothetical region,  the average  trip




        length for a speed of 30 *ph is 6 miles.




     <4, The percentages of  VRT in the cold,  stable, and




        hot transient nodes  are assumed to be  UO", 30%,




        and 30S,   respectively, for  light-duty vehicles,




        both catalyst and non-catalyst.








IV.  Caiuiat.i.on  of Ssite JEha.ust Emission Factor




     The calculation  of the  composite exhaust  hydrocarbon




emission  factor  for  light-duty vehicles,  as discussed  in




Chapter I, is given fay:




             Enpstwx - CipnflinRipstuxAipLpUipw




     Since the correction factors for air-conditioning usage




(lip), vehicle loading  (ip) , and trailer towing   (Uipw) are




assuned to be equivalent to the FTP conditions, they axe set




equal to 1.0 (i.evll they have-  no effect OB the calculations




and ay be disregarded).






                            C-4

-------
     Only  three  factors  are of  concern  in  this  sample



calculation;  (1) the  FTP mean emission factot   (Cipn) ;  (2)



the fraction of  annual travel  (Rin) ; and (3) the correction



factor for  speed, temperature, and vehicle  operating nodes



(Ripstwx) .  Refer to Chapter I for a full explanation of the



composite enission factor equation.

-------
Step 1.  Cipn  FTP Eaigsign Factor



     The FTP  Bean enissioo factors for  light-dutj  vehicles



are  the   eaission  rates  per   unit   Bile    assuming   FTP



conditions.   These  values  are  given  in   Table   1-2   loi:



hydrocarbons.



     These  Cipn  values  can  be listed  as   shown   in   the



following  table,  which  will  be used  to   calculate   the



composite exhaust emission factor.



     The following  steps, and subsequent completion  of  the



table, will adjust the FTP >ean emission factors for non-FTP



conditions.
                            C-6

-------
                     Table C-l
          Calculation of Coaposite Exhaust
Hydrocarbon Emission Factor for Light-Duty Vehicles

                 Calendar Tear 1980
Aabieot Teapeiature 80 T   Avq. Route Speed 30 ph
            
-------
Step 2.  Hin  l.liSE P.1



     In order to calculate the  fraction of annual travel  by




model year (Hin) ,  the fraction of in-use  vehicles by aodel




year (vehicle age) are weighted on  the basis oi annual rate




of mileage accumulation.  In  many cases, area -specif ic data




on  automobile use  and registration  is readily  available;.




Whenever possible, local data should  be used.  However, for




purposes of this sample  calculation, the nationwide average




fraction of annual travel data fron Table 1-5 will be used.




     The Hin values  are listed on the table to  be used for




calculating the composite exhaust emission factor.
                            C-8

-------
                     Table C-2
          Calculation of Composite Exhaust
Hydrocarbon Enission Factor lor Light-Duty Vehicles

                 Calendar Year 1980
Aabient Teaperature 80 F   Avg. Route Speed 30 mph
            HQX Cold Start/30S Hot Start

                             Ripstux
Rodel Year
1980
1979
1978
1977
1976
197S
19714
1973
1972
1971
1970
1969
1968
1967
1966
1965
196U
1963
1962
1961
*3
T
2
3
U
5
L
7
8
9
to
11
12
13
IK
IS
16
17
18
19
20
lEE
0.27
1.S8
1.92
2.21
2.53
2. 81
6.88
7.2
7.90
8.34
8.73
9.09
9.H3
12.47
12.81
13.12
13,1
13.70
13.97
1*.22
Rin
0.106
0.1
-------
Step   3.   BipstHX      ?55tio   *tor  for



Tefjjeratiijrejt and Mot/Cold HjXjt



     Although the correction factor  foe speed, temperaturev



and hot/cold operating  node mix can be  calculated Manually



using the  generalized equations in  Chapter 1  (Table 1-6),



the computer program available fro* EPA was used to generate



the Ripstvx values for a cold/stable/hot aix of 402/308/308,



ao anbient temperature of 80 F.  and an average route speed



of 30 ph.



     The  appropriate  Bipstux  values  are  listed  in  the



following table:
                            C-10

-------
                     fable C-3
          Calculation of Composite Exhaust
Hydrocarbon Eeission Factor for Light-Duty Vehicles

                 Calendar Tear 1980
A*blent Temperature 80 T   Avg, Route Speed 30 mph
            40% Cold Start/30% Hot Start
RodeJL Tear
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
*ge
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
i
0.27
1.58
1.92
2.24
2.53
2.81
6.88
7.42
7.90
8.34
8.73
9.09
9.43
12.47
12.81
13.12
13.41
13.70
13.97
14.22
Bin
0.106
0.142
0.133
0.123
0.108
0.092
0.077
0.064
0.050
0.035
0.023
0.016
0.010
0.007
0.004
0.003
0.002
0.002
0.002
0.002
IiEt
1.087
0.907
0.889
0.877
0.869
0.863
0.834
0.835
0.881
0.883
0.890
0.875
0.867
0.841
0.841
0.841
0.842
0.842
0.842
0.842
                        C-ll

-------
Step ft.  Enpstwx  Qoajgosite Exhaust lissioB Factor



     The  final step  in the  calculation  of the  composite



exhaust  eaission  factor  for  light-duty  vehicles  is  to



ultiply the  aean emission  factors and  correction factors



for each nodel year and then SUB the products.



     This  procedure   is  shown  in  the   completed  table



depicting the  calculation of  a coaposite  exhaust eaissioa



factor  for light-duty  vehicles.   The  enission factor  is



expressed in naits of grans per vehicle Bile traveled.
                            C-t2

-------
                     Table C-4
          Calculation of Conposite Exhaust
Hydrocarbon Emission Factor for Light-Duty Vehicles

                 Calendar Tear T980
Aobient Tenperature 80 f   Avg. Houte Speed 30 mph
            40X Cold Start/308 Hot Start
Bode! Year
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
Age
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Cifin
0.27
1.58
1.92
2.24
2.53
2.81
6.88
7.42
7.90
8.34
8.73
9.09
9.43
12.47
12.81
13.12
13.41
13.70
13.97
14.22
gin
0.106
0.142
0.133
0.123
0.108
0.092
0.077
0.064
0.050
0.035
0.023
0.016
0.010
0.007
0.004
0.003
0.002
0.002
0.002
0.002
RipstM*
1.087
0.907
0.889
0.877
0.869
0.863
0.834
0.835
0.881
0.883
0.890
0.875
0.867
0.841
0.841
0.841
0.842
0.842
0.842
0.842
Ii!llJlliBlJlii211
0.031
0.204
0.226
0.241
0.238
0.223
0.I45
0.397
0.346
0.258
0.180
0.125
0.081
0.077
0.047
0.030
0.025
0.024
0.023
0.019
                                      Enpstvx = 3.237 ga/ni
                        C-13

-------
                     fable C-5
             Calculation of Evaporative
Hydrocarboo Emission Factor lor Light-Dot; fehicles

Hodel fear
I960
1979
1978
1977
1976
1975
197H
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
Calendar
*a
i
2
3
4
5
6
7
8
9
10
11
12
13
19
15
16
17
18
19
20
lear
Ml
0.150
0.600
0.600
1.760
1.760
1.760
1.760
1.760
1.760
1.760
2.530
2.530
2.530
3.330
3.330
3.330
3.330
3.330
6.630
6.630
1980
Bin
0.106
0.1H2
0.133
0.123
0.108
0.092
0.077
0.064
0.050
0.035
0.023
0.016
0.0 TO
0.007
0.004
0.003
0.002
0.002
0.002
0.002

ifiillfii l
0.016
0.085
0.080
0.216
0.190
0.162
0.136
0.113
0.087
0.062
0.058
O.OHO
0.025
0.024
0.015
0.009
0.007
0.007
0.013
0.010
          Evaporative HC Eaission Factor - 1.356 qm/mi
                        C-W

-------
'  SlSi34* Begional HC Emissions fjLjom IDVs



     (OB the preceding pages a composite emission factor was



calculated only for  a speed of 30  npii.  Composite emission



factors   for   additional  speed   categories   should   be



calculated. Multiplied by 1BT at each speed, and then summed



to represent regional emissions.)



     Ion that a  composite exhaust emission factor  has been



calculated  (ia grams/mile),  we  can  determine the  actual



hydrocarbon  emissions for  the tine  period  of concern  as



follows:



Step t. Determine the total regional vehicle Biles of travel



        (?BT is  computed by multiplying the  traffic volume



        OB  a  given road  segment  by  the length  of  that



        segment),  the  appropriate  percent^  of  total  VHT



        represented by light-duty vehicle  travel during the



        July  day, and  the light-duty  VRT  for each  speed



        category.   These  categories  could b  by  10  mph



        increments between  5 mph  and 55  mph is  different



        portions of the urban area (e.g.. CBD, 10 eile ring.



        the rest of the area),



Step 2. The daily total hydrocarbon emissions for each speed



        category  egaal the  SUB  of  the composite  exhaust



        eaission factor  (calculated for this example  to be



        3.237  gm/nile   for  30  ph)   and   the  composite



        evaporative  HC emission  factor  (calculated to  be



        1.3S6 ga/mi in  Table C-S| . multiplied by  the daiJ?



        VBT for that speed category for light-duty vehicles.



        ID? evaporative  emissions are calculated  using the






                            C-15

-------
        RC emission  rates in Table 1-8.   The table  following



        this section illustrates the  procedure  for  computing



        the evaporative RC enission factor.



Step 3. The hydrocarbon emissions conpated  in  Step 2 ay  be



        adjusted  downward,  as  appropriate,   if   a  actor



        vehicle  inspection and  Maintenance  prograa is   in



        effect for  the region.  Appendix   to 40   CPi Part



        SI,  as revised  Hay 2,  1977,   42  federal   ieq|ster



        22177,  presents the  procedures and  factors to   be



        used in  calculating emission redaction  credit fro



        I/B programs.
                            C-16

-------
VI.   Calculate Regional  HC  Emissions  f_ro Ojther  Xhicle



Categories



     Repeat the procedures given in  Sections IV and ? above



to  calculate the  regional hydrocarbon  emissions fro*  all



other  vehicle  categories  (light-doty  tracks;  heavy-duty



gasoline-powered  vehicles;  and  heavy-duty  diesel-powered



vehicles),  asirvo the  appropriate tables  aad equations  in



Chapters 11. III. and If.



     iote that  the conposite  emission factor  eqaation for



heavy-duty  vehicles  differs fro  the  light-doty  vehicle



equation.








11.  Total Regional HC Ilissions froa Botor Vehicles.



     The total regional hydrocarbon emissions are determined



by  siaply  adding  the  HC   emissions  fro  each  vehicle




category.
                            C-17

-------
           APPENDIX D





Motor Vehicle Emission Standards

-------
                               APPENDIX D
                    VEHICLE EXHAUST EMISSION STANDARDS
One: Low-altitude
Light-duty Vehicles
Model Year
Pre-1968
1968-1969


1970- 71
1972
1973- 74
1975- 76
1977- 79
1980
1981 +
, non-California
Hydrocarbons
no standard
*410 ppm
*350 ppm
*275 ppm
V 2.2 gm/nri.
2/3.4 gm/mi .
3.4 gm/mi .
37 1 . 5 gm/mi .
1 .5 gm/mi .
0.41 gm/mi.
0.41 gm/mi.
Emission Standards
Carbon
Monoxide
no standard

Oxides of
_N_itrpge_n
no standard
*2.3% mole volume no std.
*2.0%
*1.5%
23 gm/mi .
39 gm/mi .
39 gm/mi .
15 gm/mi .
1 5 gm/mi .
7.0 gm/mi.
3.4 gm/mi .
no std.
no std.
no std.
no std.
3 gm/mi .
3 gm/mi .
2.0 gm/mi .
2.0 gm/mi .
1 .0 gm/mi .
  *Emission standard varied with vehicle's cubic inch displacement; using
   7-mode driving cycle test
_V Using 7-mode test
y Using 1972 FTP (constant volume sampler)
3/ Using 1975 FTP (CVS)
                                   0-1

-------
2.  Light-duty Trucks
  a.  LDT's less than 6000 pounds (gm/mi):
         Model Year           HC                CO                 NOx
           Pre-1975           Same standards  as  LDV's  (automobiles)
          1975-1978           2.0               20                 3.1
          1979-  82           1.7               17.9               2.3
         *1983-  84           0.99               9.4               2.3
         *1985+               0.99               9.4               1.4
  b.  LDT's between 6001 and 8500 pounds (gm/mi):
         Model Year           HC                CO                 NOx
           Pre-1979           Same standards  as  Heavy-duty Gas Vehicles
          1979-  82           1.7               17.9               2.3
         *1983-  84           0.99               9.4               2.3
         *1985+               0.99               9.4               1.4
*Predicted standards
                                   D-2

-------
3.  Heavy-duty Gasoline Vehicles
         Model Year                               Standards
           Pre-1970                              no standard
          1970-1973                             CO  = 1.5% mole volume
                                                HC  = 275 ppm
                                                NOx = no standard
          1974-1978                          V CO  = 40 grams per brake-
                                                        horsepower-hour
                                     2] HC plus NOx = 16 grams per bhp.-hr,
          1979-1982                          3/ CO  =  25 gm/bhp.-hr.
                                             4/ HC  =1.5 gm/bhp.-hr.
                                        U HC + NOx =  10 gm/bhp.-hr.
          1983-  84                            *CO  =29.7 gm/mi.
                                               *HC =  2.85 gm/mi.
          1985+                                *NOx =5.35 gm/mi.
V g/mi. equivalent standard is 159 gm/mi. CO
2J g/mi. equivalent standard is 12.4 g/mi. HC and 15.3 g/mi. NOx
y  "        "         "     "  140 g/mi. CO
4/  "        "         "     "3.2 g/mi. HC
5/  "        "         "     "  13.3 g/mi. NOx

*Predicted standard
                                   D-3

-------
4.  Heavy-duty Diesel  Vehicles
         Model Year                 CO                      HC plus  NQx
           Pre-1973               no std.                      no  std.
          1973                     1.5%                       no  std.
          1974-  78          40  g/bhp-hr.                  16 g/bhp-hr.
          1979-  82          25  g/bhp-hr.    1.5g  HC  and  lOg NOx or: 5g  HC plus  NOx
         *1983+              Same as gasoline  HDV's
5.  Motorcycles
Model Year
Pre-1978
1980- 82
1980-
*1983
*1985
HC
no std.
5-14 g/km
5 g/km
0.97 g/km
0.97 g/km
CO
no std.
17 g/km
12 g/km
12 g/km
12 g/km
.NQx.
no. std.
no std.
no std.
no std.
0.14 g/km
^Predicted standards
                                   D-4

-------
     APP2VDII F
Ef J.SSJOIB  Factjns  O Hhtiai. Vehicles
        F-l

-------
                         APPEMDIX
                                     f o Highway Ihicles



     Passenger  cans,   light  trucks,  heavy   tracks,  and



motorcycles  comprise the  four nain  categories of  highway



vehicles.  tfithin each of these  categories, engine and fuel



variations  result   in  significantly   different  emission



characteristics.  For  example, heavy trucks may  be powered




by gasoline or diesel fuel or operate on a gaseous fuel sucb



as compressed natural gas*



     It is important  to note that highway  vehicle emission



factors change with tine and,  therefore. Bust be calculated



for a specific tie period.  The  najor reason for this tie



dependence is  the gradual  replacement of  vehicles without



emission  control   equipnent  by   vehicles  with   control



equipment, as well as the  gradual deterioration of vehicles



aith control equipment as they accumulate age and Mileage.



     This  appendix contains  average  emission factors  for



calendar years  1970 through  1999 for  selected values  of:



vehicle  miles traveled  by  vehicle  type  (passenger  cars,



light  trucks,  heavy  trucks,   and  BOtorcy-c les) ,  anbient



temperature, cold/hot  weighting, and  average route  speed.



This appendix includes one case  that represents the average



national emission factors, as generated  in the Federal Test



Procedure  (Table  F-3) , as  well as  twenty other  scenarios



that can be used to assess  the sensitivity of the composite



eaission factors to changing input conditions.  All emission



factors are  given in units of  grass of pollutant  per Mile



traveled .



                            F-2

-------
     The emission  factors given  in  preceding  chapters ace



foe  individual  classes  of  highway  vehicles,  and  their



application is  encouraged if specific statistical  data are



available for the  areas under stud;.  The  statistical data



required  include vehicle  registration  by  model year  and



vehicle type, annual vehicle mileage  accunalation by vehicle



type  and age,  average ambient  temperature, percentage  of



cold engine operation by vehicle  type, average route speed,



and other input data, if  available,  to deternine additional



correction  factors.   When  area-specific  inputs  are  not



available,  national valaes  (which  are  discussed in  this



appendix) nay be applied.



     Emission factors presented in this section are intended



to  assist   those  individuals   interested  in   compiling



approximate  mobile  source  emission  estimates  for  large



areas,  such as  an  individual air  quality  region or  the



entire nation.



     The emission factor calculation  techniques presented in



the  previous  chapters  are strongly  recommended  for  the



formulation of localized emission estimates required for air



quality  modeling or  for the  evaluation  of air  pollutant



control   strategies.   Rany   factors,   which  vary   with



geographic  location and  estimation   situation, can  affect



emission  estimates considerably.  The  factors of  concern



include average  vehicle speed,  percentage of  cold vehicle



operation,  percentage of  travel  by  vehicle category  (as



listed above), ambient temperature,  air conditioning usage,



vehicle load,  trailer towing,  and humidity.   Clearly, the






                            P-3

-------
infinite  number of  variations  in  these factors  make  it



impossible  to  present  composite  mobile  source  emission



factors  for each  application.  An  effort  has been  made,,



therefore, to present  average emission factors for  a rang



of conditions.  The following  conditions are considered for



each of these cases;








Average vehicle  sjieedj,  Two vehicle speeds  are considered.



The first is an average speed of 19.6 mi/hr, which should be



typical of  a large percentage  of urban  vehicle operation.



The second is an average speed  of 15 mi/far, which shoald be



typical of highway or rural operation.
            l Sil  2Sli5fi*  Three  percentages of  cold



operation are considered.  The first (at 19.6 ai/hr) assumes



that 20S of  the automobiles and light  tracks are operating



in  a cold  condition  (representative  of vehicle  start-up



after  a  long  engine-off  period)  and  that  80S  of  the



automobiles and light  trucks are operating in  a stabilized



condition   (warmed-up vehicle  operation),  with 27%  having



started hot.  This  condition can be expected  to assess the



engine temperature situation over a large area for an entire



day.   The  second  situation  assumes   that  100%  of  the



automobiles and light  trucks are operating in  a stabilized



condition  (45 mi/hr) .  This might  be applicable to rural or



highway  operation.  The  third  situation   (at 19.6  mi/hr)



assumes that  100% of the  automobiles and light  trucks are



operating in   cold condition.  This might  be a worst-case






                            T-H

-------
situation around an indirect source such as a sports stadiua



after an event  lets out.  ID  all three  situations, heavy-



duty  vehicles  ace  assumed  to   be  operating  in  a  hot



stabilized condition.
     fil3 2l !!*! fel Iiifi  lIEje  Three situations are



considered.  The  first (at  both 19.6  ai/hr and  45 ai/hr)



involves  a nationwide  ix  of  vehicle Biles  traveled  by



automobiles,  light  trucks, heavy  gasoline  trucks,  heavy



diesel trucks,  and Motorcycles.   The specific  percentages



are  80. 3%. 11. 6S,  U.5S, 3. IS.  and O.S*  of total  vehicle



iles traveled,  respectively.  The  second  (at  19.6 i/hr)



examines a nix of vehicle wiles traveled that sight be found



in a central  city area.  The specific  percentages are 632,



325, 2.5X, 2.5S, and O.OS  respectively.  The third (at 19.6



di/hr) examines a  ix of vehicles that eight be  found in a



suburban location or near a  localized indirect source where



no heavy  truck operation exists.  The  specific percentages



88. 2S, 11. 8S, 0.0*. O.OS, and 0.05S. respectively.








Aabient !Er_a_ture^   Three situations  are considered  for



each scenario: an average anbient temperature of 75F, 50F,



or 25r.








     Each table presents  composite CO, DC, and  IQx factors



for one of  the 21 cases discussed above  for calendar years



1970-1999.   The table  entries  were  calculated using  the



techniques  described and  data  presented  in the  chapters






                            F-S

-------
which preceded this appendix.  Examination of the tables can



indicate the sensitivity  of the composite enission factor to



various conditions.   A user  who has  specific data  on the



input factors should calculate a composite factor to fit the



exact scenario.   When specific  input factor  data are  not



available, however,  it is  hoped that  the range  of values



presented  in  the   tables  will  cover  the   majority  of



applications.  The  user  should be  sore, however,  that the



appropriate scenario  is  chosen to  fit the  situation under



analysis.  In soe  cases, it is not necessary  to apply the



various  correction  factors  because   the  basic  emission



factors (7SBF.  19.6 m/hr.  20% cold  operation, nationwide



ix  of travel  by vehicle  category.  etc.) are  reasonably



accurate  predictors   of  motor  vehicle  enissions   on  a



regionwide (urban) basis.
                            P-6

-------
Scenarios tor iierage High May I>ii Ili
                                                      factors
Table
             SeedJhl  sold Start  SHojt Start  lehj, nix
F-1
P-2
F-3
r-n
F-5
F-6
F-7
F-8
F-9
F-10
F-11
F-12
F-13
F-1%
F-t5
F-16
F-17
F-18
F-19
F-20
F-21
250
SO*
750
250
50
7S>
2b
508
75>
25">
500
750
250
50*
750
2SO
500
750
250
500
75
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
5.0
15.0
U5.0
20.6
20.6
20.6
100.0
100.0
100.0
20.6
20.6
20.6
TOO.O
100.0
too.o
20.6
20.6
20.6
too.o
100.0
100.0
0.0
0.0
o.o
27.3
27.3
27.3
0.0
0.0
0.0
27.3
27.3
27.3
0.0
0.0
0.0
27.3
27.3
27.3
0.0
0.0
0.0
0.0
0.0
o.o
1
1*
1*
1*
1*
1
2
2*
2*
2*
2*
2*
3*
3*
3*
3*
3*
3*
1*
i*
1*
  1 represents 80.3S autos, 5.85 for each of the two light
     truck classes, 4.5S heavy gas trucks. 3.5% heavy duty
     diesels, and 0.50 motorcycle VRT.

  *2 represents 63K autos, 16* for each of the tvo light
     track classes. 2.5% heavy gas trucks, and 2.58 heavy
     duty diesel vehicle HT.

  *3 represents 88.2S autos, and 5.9X for each of the
     two light truck classes.
                             F-7

-------
TBLE F- 1
SPEED:  19.6 H.P.H.          TEHP:  25.  (F)
   BS:  0.803 0.058 0.058 0.0*5 0.031 0.005
                       * COIB  START:   2G.6S
                        S HOT  STABT:   27.3S
1
1970
1971
1972
1973
197*
1975
1976
1977
1978
1979
1980
1981
1982
1983
198*
1985
1986
1987
1988
1989
1990
1991
1992
1993
199*
1995
1996
1997
1998
1999
HC
13.6
12.9
12.3
11.7
11.3
10.8
10.2
9.6
9.0
8.*
7.5
6.7
5.9
5.3
*.7
*.2
3.9
3.6
3.*
3.2
3.1
3.0
3.0
2.9
2.9
2.9
2.9
2.9
2.9
2.9
                                         CO

                                        107.7
                                        10* .5
                                        102.3
                                        100.7
                                        99.8
                                        97.6
                                        9* .6
                                        91.5
                                        88.2
                                        84.7
                                        78.6
                                        71.*
                                        6*.7
                                        57.9
                                        51.3
                                        *5.6
                                        *0.7
                                        36.7
                                        33.*
                                        30.8
                                        28.9
                                        27.5
                                        26.*
                                        25.6
                                        25.0
                                        2*.6
                                        2*.6
                                        2*.6
                                        2*.6
                                        2*.6
                       |OX

                       *.7
                       1.8
                       *.9
                       1.8
                       *7
                       *.5
                       *.*
                       *.l
                       3.9
                       3.8
                       3.6
                       3.1
                       3.2
                       3.0
                       2.9
                       2.7
                       2.5
                       2.H
                       2.2
                       2.1
                       2.1
                       2.0
                       2.0
                       2.0
                       1.9
                       1.9
                       1.9
                       1.9
                       1.9
                       1.9

-------
                               TBIE F- 2

SPEED:  19.6 B.P.H.           TEBP:  50. (P)           t COLD  START:   20.6X
   US:  0.803 0.058 0.058  0.0*5 0.031 0.005           X HOT  START:   27.3X

                IVtRICE  fEHICLE tniSSIOM FACTORS  (GH/HI)

                 Cl           HC          CO          BOX

                                                      1.7
                                                      1.8
                                                      1.9
                                                      1.8
                                                      1.7
                                                      1.5
                                                      1.1
                                                      1.1
                                                      3.9
                                                      3.8
                                                      3.6
                                                      3.1
                                                      3.2
                                                      3.0
                                                      2.9
                                                      2.7
                                                      2.5
                                                      2.1
                                                      2.2
                                                      2.1
                                                      2.1
                                                      2.0
                                                      2.0
                                                      2.0
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
                                                      t.9
1970
1971
1972
1973
1971
1975
1976
1977
1978
1979
1980
1981
1982
1983
1981
1985
1986
1987
1988
1989
1990
1991
1992
1993
1991
1995
1996
1997
1998
1999
12.7
12.0
11.1
10.9
10.5
10.0
9.1
8.9
8.3
7.7
6.9
6.1
5.4
1.8
1.3
3.9
3.5
3.3
3.1
2.9
2.8
2.8
2.7
2.6
2.6
2.6
2.6
2.6
2.6
2.6
95.2
92.2
89.9
88.1
87.1
85.2
82.2
79.0
75.7
72.2
67.0
61.1
55.6
50.0
11.5
39.8
35.7
32.1
29.7
27.5
25.9
21.7
23.8
23.0
22.5
22.1
22.1
22.1
22.1
22.1

-------
                              TABLE F- 3
SPEED:  19.6 H. P. H.          TEHP:  75.  (F)
   f!S:  0.803 0.058 0.058 0.045 0.031 0.005
                           COLO STABT-  20.6*
                          X NOT STAiT;  27.31
                fcfEBAGE VEHICLE EBISSIOK FACTOBS  (GB/HI)

                 CT          HC          CO          IOZ
                1970
                1971
                1972
                1973
                197H
                1975
                1976
                1977
                1978
                1979
                1980
                1981
                1982
                1983
                1981
                1985
                1986
                1987
                1988
                1989
                1990
                1991
                1992
                1993
                1991
                1995
                1996
                1997
                1998
                1999
12.1
11.1
10.8
10.3
 9.9
 9.1
 8.9
 8.5
 7.9
 7.3
 6.6
 5.8
 5.1
 1.6
 1.1
 3.6
 3.3
 3.1
 2.9
 2.7
 2.7
 2.6
 2.5
 2.5
 2.1
 2.1
 2.1
 2.1
 2.t
86.9
83.9
81.6
80.0
79.0
77.0
71.3
71.1
68.3
65.2
60*6
55.5
50.6
15.7
90.9
36.7
33.0
30.0
27.6
25.6
21.2
23.1
22.2
21.5
21.1
20.7
20.7
20.7
20.7
20.7
1.8

ile
1.7
1.5
1.1
1.1
3.9
3.8
3.6
3.1
3.2
3.0
2.9
2.7
2.5
2.1
2.2
2.1
2.1
2.0
2.0
2.0
 .9
 .9
 .9
 .9
 .9
 .9

-------
                              TABLE F-  H
SPEED;  19.6 B.P.H.          TEBP:  25.  (F)
   85:  0.803 0.058 0.056 0.045 0.031 0.005
                        8 COLD START:  100.OS
                         I HOT START:    0.0*
CI
HC
                                         CO
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
22.6
21.8
21.0
20.4
19.9
19.0
18.1
17.2
16.2
15.1
13.6
12.2
10.9
9.8
8.9
8.1
7.5
7.1
6.8
6.5
6.4
6.2
6.1
6.1
6.0
5.9
5.9
5.9
5.9
5.9
228.7
224.7
222.7
221.9
222.1
219.3
214.7
209.6
204.0
198.0
183.2
165.3
148.6
132.5
117.6
104.9
93.9
85.2
78.1
72.5
68.6
65.7
63.5
61.9
60.8
59.9
59.9
59.9
59.9
59.9
101

5.0
5.1
5.2
5.2
5.1
4.9

4l&

4l3
4.1
3.9
3.7
3.6
3.4
3.3
3.1
2.9
2.7
2.6
2.6
2.5
2.5
2.5
2.4
2.4
2.4
2.4
2.4
2.4

-------
                               TABLE F- 5

SPEEl :  19.6 J1.P.H.           TEBP:  SO. (F)           %  COiD SZAiT: 100.OS
   US:  0.803 0.058 O.OS8  0.045 0.031 0.005           5 HOT STAfiT;   O.OX

                 * II * G E__ f EH 1C L E _ jni SSIO K_F A CT 0 H S _JG H/H11

                                                       NOI

                                                       5.0
                                                       5.1
                                                       5.2
                                                       5.2
                                                       5.1
                                                       4.9
                                                       4.8
                                                       <*.6
                                                       1.1
                                                       *.3
                                                       .*
                                                       3.9
                                                       3.7
                                                       3.6
                                                       3.4
                                                       3.3
                                                       3.1
                                                       2.9
                                                       2.7
                                                       2.6
                                                       2.6
                                                       2.5
                                                       2.5
                                                       2.5
                                                       2.a
                                                       2.4
                                                       2.4
                                                       2.4
                                                       2.4
                                                       2.4
CT
1970
1971
1972
1973
197*1
1975
197fe
1977
1978
1979
I960
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
HC
18.3
17.5
1>.9
16.3
15.8
15.2
14.4
13.6
12.8
11.9
10.7
9.5
8.5
7.6
6.9
6.3
5.8
5.5
5.2
5.0
4.9
4.8
4.7
4.7
4.6
4.6
4.6
4.6
4.6
4.6
CO
168.1
164.7
162.7
161.7
161.5
158.7
154.1
149.0
143.3
137.4
127.1
115.3
104.5
94.1
84.6
76.6
69.8
64.5
60.0
56.5
54.0
52.1
50.6
49.4
48.6
48.0
48.0
48.0
48.0
48.0

-------
ISB1E F- 6
SPEED:  19.6 H.P.H.           TEBP:  75. (r>
   BS:  0.803 O.OS8 0.058  0.045 0.031 0.005
                       * COLD  STJBT:  100.0*
                        *  HOT  SIHT:    0.0-
Cf
1970
1971
1972
1973
1971
1975
1976
1977
1978
1979
1980
1981
1982
1983
1981
1985
1986
1987
1988
1989
1990
1991
1992
1993
1991
1995
1996
1997
1998
1999
IS
15.3
11.6
11.0
13.1
13.0
12.5
11.9
11.3
10.7
9.9
8.9
7.9
7.1
6.3
5.7
5.2
1.8
1.5
1.3
1.2
1.1
1,0
3.9
3.9
3.8
3.8
3.8
3.8
3.8
3.8
                                          CO

                                        127.5
                                        121.1
                                        122.5
                                        121.3
                                        120.9
                                        119.1
                                        116.0
                                        112.1
                                        107.8
                                        103.0
                                         95.8
                                         87.9
                                         80.5
                                         73.3
                                         66.8
                                         61.2
                                         56.6
                                         52.9
                                         19.8
                                         l7.1
                                         t5.6
                                         11.2
                                         <43.0
                                         12.1
                                         11.5
                                         It.O
                                         HT.O
                                         11.0
                                         11.0
                                         11.0
                       JIOX

                       5.0
                       5.1
                       5.2
                       5.2
                       5.1
                       1.9
                       1.8
                       1.6
                       1.1
                       1.3
                       <*.1
                       3.9
                       3.7
                       3.6
                       3.U
                       3.3
                       3.1
                       2.9
                       2.7
                       2.6
                       2.6
                       2.5
                       2.5
                       2.5
                       2.*l
                       2. H
                       2.1
                       2.U
                       2.1
                       2.1

-------
                               TABLE F- 7
SPEED:   19.6 fl.P.H.           TEBP:  25.  (F)
   RS:   0.630 0.160  0.160 0.025 0.025 0.0
X COLD START:   20.6S
 % HOT START:   27.3*
                  Cf

                 1970
                 1971
                 1972
                 1973
                 1971
                 1975
                 1976
                 1977
                 1978
                 1979
                 1980
                 1981
                 1982
                 1983
                 1981
                 1985
                 1986
                 1987
                 1988
                 1989
                 1990
                 1991
                 1992
                 1993
                 1991
                 1995
                 1996
                 1997
                 1998
                 1999
HC
13.8
13.1
12.5
11.9
11.1
10.9
10.3
9.8
9.2
8.6
7.8
7.0
6.3
5.7
S.I
1.6
1.2
3.9
3.6
3.4
3.3
3.1
3.1
3.0
2.9
2.9
2.9
2.9
2.9
2.9
CO
108.0
101.1
101.8
100.0
98.9
96.6
93.8
90.9
88.0
81.8
79.5
73.5
67.9
61.9
55.9
50.1
15.3
lt.1
37.5
31.5
32.2
30.1
28.9
27.8
27.0
26.2
26.2
26.2
26.2
26.2
2J

1.7
1.8
1.9
1.8
1.7
1.5
1.3
1.1
3.9
3.7
3.6
3.3
3.1
3.0
2.8
2.7
2.5
2.3
2.2
2.1
2.0
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9

-------
                               TAB1E F- 8

SPIED:  19.6 H.P.H.           TEBP:  50. (F)          S COLD ST*HT:   20.6*
   BS:  0.630 0.160 0.160  0.025 0.025 0.0             % HOT START:   27.38

                AfEBiGE  VEHICLE EBISSIOK FACTORS  (GB/HI)

                 1           HC          CO          101

                                                      1.7
                                                      1.8
                                                      1.9
                                                      1.8
                                                      1.7
                                                      1.5
                                                      1.3
                                                      1.1
                                                      3.9
                                                      3.7
                                                      3.6
                                                      3.3
                                                      3.1
                                                      3.0
                                                      2.8
                                                      2.7
                                                      2.5
                                                      2.3
                                                      2.2
                                                      2.1
                                                      2.0
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
                                                      1.9
1970
1971
1972
1973
1971
1975
1976
1977
1978
1979
1980
1981
1982
1983
1981
1985
1986
1987
1988
1989
1990
1991
1992
1993
1991
1995
1996
1997
1998
1999
12.9
12.2
11.6
11.0
10.6
to.o
9.5
9.0
8.1
7.8
7.1
6.1
5.7
5.1
1.6
1.2
3.8
3.5
3.2
3.1
2.9
2.8
2.7
2.7
2.6
2.5
2.5
2.5
2.5
2.5
91.6
91.2
88.8
87.0
85.8
83.6
80.8
77.9
7.9
71.8
67.2
62.1
57.3
52. a
17.1
12.9
38.7
35.3
32. 
29.8
27.9
26.3
25.1
21.1
23.1
22.7
22.7
22.7
22.7
22.7

-------
HB1E F- 9
SPIlDr  19.6 B.P.H.           TEflPr   75.  (F)
   US:  0.630 O.T60 0.160 0.025 0.025  0.0
                       S COID  STABT:  20. 62
                        %  HOT  START:  27. 3X
                1970
                1971
                1972
                1973
                197ft
                1975
                1976
                1977
                1978
                1979
                1980
                1981
                1982
                1983
                198ft
                1985
                1986
                1987
                1988
                1989
                1990
                1991
                1992
                1993
                199
                1995
                1996
                1997
                1998
                1999
BC
12.2
11.5
10.9
10. ft
10.0
9.5
9.0
8.5
8.0
7. ft
6.7
6.0
5. ft
ft. 8
ft. 3
3.9
3.5
3.2
3.0
2.9
2.7
2.6
2.5
2.5
2. ft
2. ft
2. ft
2. ft
2.ft
2. ft
CO
85.6
82. ft
80.0
78.3
77.1
75.1
72.5
69.9
67.1
6ft. 3
60.2
55.8
51.6
ft7.2
ft2.9
38.9
35.2
32.2
29.5
27.3
25.6
2ft. 1
23.0
22.1
21. ft
20.8
20.8
20.8
20.8
20.8
                       KOI

                       ft. 7
                       1.8
                       1.9
                       1.8
                       ft. 7
                       1.5
                       1.3
                       ft.1
                       3.9
                       3.7
                       3.6
                       3.3
                       3.1
                       3.0
                       2.8
                       2.7
                       2.5
                       2.3
                       2.2
                       2.1
                       2.0
                       1.9
                       1.9
                       1.9
                       1.9
                       t.9
                       1.9
                       T.9
                       1.9
                       1.9

-------
TABLE F-10
SPEED:  19.6 H.P.B.           TEBP:  25. (F>
   HS:  0.630 0.160 0.160  0.025 0.025 0.0
                       S  COLD  STABT: 100. OS
                        S HOT  SfABT:   O.OS
Cf
HC
                                          CO
1970
1971
1972
1973
1971
1975
1976
1977
1978
1979
1980
1981
1982
1983
1981
1985
1986
1987
1988
1989
1990
1991
1992
1993
199*
1995
1996
1997
1998
1999
23.7
22.7
21.9
21.2
20.6
19.7
18.8
17.9
16.9
15.9
11.6
13.2
12.1
11.0
10.0
9.2
8.5
7.9
7.5
7.1
6.9
6.7
6.5
6.1
6.2
6.2
6,2
6.2
6U2
6.2
239.6
233.9
230.3
228.3
227.7
221.5
220.0
215.1
210.7
205.2
192.9
178.3
161.8
150.6
136.1
123.1
111.0
101.3
92.9
85.9
80.6
76.1
73.2
70.8
69.1
67.1
67.1
67.1
67.1
67.1
                        iOI

                        5.1
                        5.2
                        5.2
                        5.2
                        5.0
                        *.9
                        1.8
                        1.6
                        1.1
                        1.3
                        1.1
                        3.9
                        3.7
                        3.6
                        3. a
                        3.3
                        3.0
                        2.9
                        2.7
                        2.6
                        2.6
                        2.5
                        2.5
                        2.1
                        2.1
                        2.1
                        2.1
                        2.1
                        2.1
                        2.1

-------
                               TABLE F-11

SPIED:  19.6 H.P.B.           TEWPr   50. (F)           Z C01D STiBT:  100.OX
   nS:  0.630 0.160 0.160 0.025  0.025  0.0              % HOT START:    O.OS

                AVERAGE fEHICLE  EHIS510H FACTORS

                 CI           HC           CO           OI

                                                      5.1
                                                      5.2
                                                      5.2
                                                      5.2
                                                      5.0
                                                      1.9
                                                      1.8
                                                      ft.6
                                                      1.1
                                                      1.3
                                                      1.1
                                                      3.9
                                                      3.7
                                                      3.6
                                                      3.1
                                                      3.3
                                                      3.0
                                                      2.9
                                                      2.7
                                                      2.6
                                                      2.6
                                                      2.5
                                                      2.5
                                                      2.1
                                                      2.1
                                                      2.1
                                                      2.1
                                                      2.1
                                                      2.1
                                                      2.1
1970
1971
1972
1973
1971
1975
1976
1977
1978
1979
1980
1981
1982
1983
1981
1985
1986
1987
1988
1989
1990
1991
1992
1993
1991
1995
1996
1997
1998
1999
19.0
18.2
17.5
16.8
16.3
15.6
11.9
tl.1
13.3
12.5
11.1
10.3
9.3
8.1
7.7
7.0
6.1
6.0
5.7
5.1
5.2
5.1
1.9
1.8
1.7
1.6
1.6
1.6
1.6
1.6
171.3
169.8
166.9
165.2
161.1
161.H
157.0
152.3
117.3
111.8
132.8
122.8
113.6
101.3
95.0
86.7
79.2
73.0
67.7
63.1
59.6
56.8
51.6
52.8
51.5
50.3
50.3
50.3
50.3
50.3

-------
                              TABLE F-12
SPEED:  19.6 B.P.H.          TEBPI  75.
   BS:  0.630 0.160 0.160 0.025 0.025 0.0
                          COLD STABT: 100.OS
                         X HOT START:   O.OS
CY
HC
                                         CO
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
15.8
15.1
14.4
13.8
13.4
12.8
12.2
11.6
11.0
10.3
9.4
8.4
7.6
6.9
6.3
5.7
5.3
4.9
4.6
4.4
4.3
4.1
4.0
3.9
3.8
3.8
3.8
3.8
3.8
3.8
130.5
126.9
124.4
122.8
122.0
120.0
117.0
113.5
109.5
105.2
98.9
92.0
85.6
79.2
72.8
67.2
62.0
57.8
54.0
50.7
48.2
46.1
44.3
43.0
41.9
41.0
41.0
41.0
41.0
41.0
iOJ

5.1
5.2
5.2
5.2
5.0
4.9
4.8
4.6
4.4
4.3
4.1
3.9
3.7
3.6
3.4
3.3
3.0
2.9
2.7
2.6
2.6
2.5
2.5
2.4

2l4

2l4
2.4
2.4

-------
TABLE F-13
SPIED:  19.6 H.P.H.           TEHP:  25. (F)
   BS:  0.882 0.059 O.OS9  0.0    0.0   0.0

                ill 5* !_!! i 1 1_l 51 s s i o _* CTOB s_ JG
                        S COLD STABIr  20.6*
                         % HOT STiBT:  27. 3S
HC
                                          CO
                 1970
                 1971
                 1972
                 1973
                 1974
                 1975
                 1976
                 1977
                 1978
                 1979
                 1980
                 1981
                 1982
                 T983
                 1984
                 1985
                 1986
                 1987
                 1988
                 1989
                 1990
                 1991
                 1992
                 1993
                 1994
                 1995
                 1996
                 1997
                 1998
                 1999
12.8
12.1
11.5
11.0
10.6
10.0
9.4
8.8
8.2
7.5
6.7
5.9
5.2
4.6
4.0
3.6
3.3
3.1
2.9
2.7
2.6
2.6
2.5
2.4
2.4
2.4
2.4
2.4
2.4
2.4
100.8
97.7
95.5
94.2
93.4
91.2
88.0
84.7
81.1
77.5
71.0
63.4
56.1
49.4
43.4
38.4
34.0
30.5
27.6
25.4
23.8
22.6
21.7
21.0
20.5
20.2
20.2
20.2
20.2
20.2
                        I[OI

                        3.9
                        3.9
                        3.7
                        3.5
                        3.3
                        3.1
                        2.9
                        2.7
                        2.5
                        2.3
                        2.1
                        2.0
                        1.9
                        1.8
                        1.7
                        1.7
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6

-------
                               TABLE  F-tH
SPEED:  19.6 H.P.H.           TEHP:   50. (F)
   BS:  0.882 0.059 0.059  0.0    0.0    0.0
                         S  COLD  STABT:  20.6%
                         S HOT  START:  21.3%
CY
HC
                                          CO
1970
1971
1972
1973
1971
1975
1976
1977
1978
1979
1980
1981
1982
1983
1981
1985
1986
1987
1988
1989
1990
1991
1992
1993
1991
1995
1996
1997
1998
1999
11.8
11.2
10.6
10.1
9.7
9.1
8.6
8.0
7.1
6.8
6.0
5.3
1.6
1.1
3.6
3.2
2.9
2.7
2.5
2.1
2.3
2.2
2.2
2.1
2.1
2.1
2.1
2.1
2.1
2.1
87.3
84.3
82.2
80.7
79.9
77.7
71.5
71.1
67.6
61.0
58.5
52.3
16.1
10.9
36.1
32.1
28.7
25.9
23.6
21.8
20.6
19.6
18.8
18.2
17.8
17.5
17.5
17.5
17.5
17.5
|OX

3.9
1.0
1.1
1.0
3.9
3.7
3.5
3.3
3.1
2.9
2.7
2.5
2.3
2.1
2.0

U8
1.7
1.7
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6

-------
TIBiE F-15
SPEED:  19.6 H.P.H.           TEHP:   75.  |F)
   KS:  0.882 0.059 0.059 0.0    0.0    0.0
                        X  COID SI1BI:  20.6*
                        Z  HOT ST4HT:  27. 3%
1C
                                          CO
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
198H
1985
1986
1987
1988
1989
1990
1991
1992
1993
199*
1995
1996
1997
1998
1999
11.2
10.5
9.9
9.1
9.0
8.5
8.0
7.5
6.9
6.3
5.6
*.9
t.3
3.8
3.3
3.0
2.7
2.5
2.3
2.2
2.1
2.1
2.0
2.0
1.9
1.9
1.9
1.9
1.9
1.9
78.3
75.3
73.2
71.7
70.8
68.8
66.0
62.9
59.6
56.3
51.5
tl6.2
41.0
36.3
32.2
28.7
25.8
23. U
21.4
19.8
18.7
17.8
17.2
16.6
16.3
16.0
16.0
16.0
16.0
16.0
                       101

                       3.9
                       1.0
                        3.9
                        3.7
                        3.5
                        3.3
                        3.1
                        2.9
                        2.7
                        2.5
                        2.3
                        2.1
                        2.0
                        1.9
                        T.8
                        t.7
                        T.7
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6
                        1.6

-------
                              TABLE  F-16

SPEED:  19.6 R.P.B.          TEHP:   25.  (F)           % COID START: 100.OS
   HS:  0.882 0.059 0.059 0.0    0.0    0.0              % HOT STABT:   O.OS

                *II1*GJL1EH1CIE_EflISSIOS_t*CTOBS_JCB^HI1

                 CT          HC           CO           BOX

                                                      1.3
                                                      
-------
                              flBLE  F-17
SPEED:  19.6 .P.H.          TEHP:  50.  (?)
   US:  0.882 0.059 0.059 0.0   0.0    0.0
                        S COLD  SWSfl 100.OS
                         8 HOT  STABT:   O.OS
CT
HC
                                          CO
1970
1971
1972
1973
197
-------
                               TABLE F-18
SPEED:  19.6 H.P.H.           TEBP:   75.
   BS:  0.882 0.059 O.OS9  0.0    0.0   0.0
3 COLD STABI:  100.0S
 X HOT START:    0.0%
                 CT

                 WO
                 1971
                 1972
                 1973
                 1971
                 1975
                 1976
                 1977
                 1978
                 1979
                 1980
                 1981
                 1982
                 1983
                 1981
                 1985
                 1986
                 1987
                 1988
                 1989
                 1990
                 1991
                 1992
                 1993
                 1991
                 1995
                 1996
                 1997
                 1998
                 1999
HC
11.6
13.9
13.3
12.8
12.1
11.9
11.3
10.6
9.9
9.1
8.2
7.2
6.1
5.7
5.1
1.7
1.1
1.1
3.9
3.8
3.7
3.6
3.6
3.5
3.5
3.1
3.1
3.1
3.1
3.1
CO
122.3
119.3
117.1
116.5
116.2
111.1
111.2
107.1
102.1
97.3
89.7
81.2
73.3
66.2
60.2
55.3
51.3
18.2
15.5
13.1
11.9
ttO.8
39.8
39.1
38.5
38.1
38.1
38.1
38.1
38,1
MOI

1.3
1.1
1.5
1.1
1.2
1.1
1.0
3.8
3.6
3.1
3.3
3.1
2.9
2.7
2.6
2.5
2.1
2.3
2.2
2.2
2.1
2.1
2.1
2.1
2.1
2.1
2.1
2.1
2.1
2.1

-------
                              IIBLE F-19

SPIEDr  15.0 li.P.H.          TIHP:  25.  (F>           X  COLD SI*BI:   0.0*
   f!S:  0.803 0.058 0.058 0.015 0.031 0.005           % HOT Sflif:   C.OS

                AVERAGE VEHICLE EHISSIOB FACTORS

                 C          BC          CO           MOX

                1970         7.3        10.5          4.9
                1971         6.8        37.9          S.O
                1972         6.3        35.8          5.1
                T973         5.9        33.9          5.1
                1971         5.5        32.1          5.0
                1975         5.2        30.8          1.9
                1976         1.8        29.2          1.8
                1977         1.5        27.8          1.6
                1978         1.1        26.5          1.1
                1979         3.7        25.1          1.3
                1980         3.3        23.9          1.1
                1981         2.8        22.2          3.9
                1982         2.1        20.6          3.7
                1983         2.0        18.8          3.5
                1981         1.7        T6.8          3.1
                1985         T.5        15.0          3.2
                1986         1.3        13.3          3.0
                1987         1.1        12.0          2.8
                1988         1.0        10.8          2.6
                1989         0.9         9.9          2.5
                1990         0.8         9.3          2.5
                1991         0.8         8.8          2.1
                1992         0.8         8.5          2.1
                1993         0.7         8.2          2.3
                1991         0.7         8.0          2.3
                1995         0.7         7.9          2.3
                1996         0.7         7.9          2.3
                1997         0.7         7.9          2.3
                1998         0.7         7.9          2.3
                1999         0.7         7.9          2.3

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                               1ABLI F-20
SPEED:  ft5.0 H.P.H.           TEHP:  50.  (F)
   I!S:  0.803 0.058  0.058 O.OftS Q.03T 0.005
S COID STAR*:    O.OS
 S HOT STAIf:    O.OS
                  c

                 1970
                 1971
                 1973
                 197ft
                 1976
                 1977
                 1978
                 1979
                 1980
                 1981
                 1982
                 1983
                 198ft
                 1985
                 1986
                 1987
                 1988
                 1989
                 1990
                 1991
                 1992
                 1993
                 199ft
                 1995
                 1996
                 1997
                 1998
                 1999
HC
7.3
6.8
*.?
5.9
5,5
5.2
ft. 8
*5
ft. 1
3.7
3.3
2,8
2j|
m. ^
2 .0
1.7
1*5
1.3
1.1
1.0
0.9
0.8
0.8
0.8
6.7
0.7
0.7
0.7
0.7
 ,7
0.7
CO
&C.5
37 1 9
35,8
33,9
37. 4
30. b
29.2
27.8
26.5
25, ft
23.3
22.2
20 .6
18.8
16.8
15,0
13.3
12. C
10.8
9.9
9.3
S.,8
8.5
8.2
8Q
7,9
7W9
7.9
7.9
7 9
SOI

4.9
5.0

sli
5.0

Ie
ft.3
ft.1
39
3.7
3.5
3.ft
3.2
3.0
2.8
2K
2.5
2,5
2m ft
2.ft
2.3
2.3
2.3
2.3
2.3
2.3
2.3

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                              TABLE  F-21
SPEED:  45.0 H.P.M.          TEHP:  75.  (F)
   RS:  0.803 0.058 0.058 0.045 0.031  0.005
             ft COLD StliT:    O.OS
              S HOT START:    0.0%
                1970
                1971
                1972
                1973
                1974
                1975
                1976
                1977
                1978
                1979
                1980
                1981
                1982
                1983
                198 4
                1985
                1986
                1987
                1988
                1989
                1990
                1991
                1992
                1993
                1994
                1995
                1996
                1997
                1998
                1999
HC

7.3
6.8
6.3
5.9
5.5
5.2
1.8
1.5

3^7
3.3
2.8
2.4
2.0

U5
1.3
1.1
1.0
0.9
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.7
0.7
0.7
10.5
37.9
35.8
33.9
32.ft
30.8
29.2
27.8
26.5
25.4
23.9
22.2
20.6
18.8
16.8
15.0
13.3
12.0
10.8
 9.9
 9.3
 8.8
 8*5
 8.2
 6.0
 7.9
 7.9
 7.9
 7.9
 7.9
4.9
5.0
5. t
5^1
5.0
1.9
4.1
3.9
3*7
3.5
3.4
3.2
3.0
2.8
2.6
2.5
2*5
2*4
2*4
2.3
2*3
2.3
2*3
2.3
2.3
2.3

-------
  APPENDIX  G
lSl*ii!>  !UEM!!i* Bile age
     G-1

-------
     the tables cumbered  -2, -3, and -*S in  each chapter of



this  docuaeat present  the  eeission  factors for  calendar



years 1970 through 1995,,  For each calendar year, aodel-yeair



specific  emission factors  ate presented  for  the 20  most



recent aodel yeai:s.



     The emission factors for a given nodel year are assuaed



to vary linearly  Kith siiieage.  Since the  en ission factors



foe a given sod=;{ year vehicle  are calculated foe July  1 of



each  calendar ye.it  it  is necessary  to  know the  average



cumulative nileage on July 1 of each calendar year.



     The conulati^e  nileages are presented in  Tables I-5ar



II-Sc, II-5d, III-5aa,lV-Sa. aad *-5a



     The  aethodology  for  calculating  average  cuaulative



 ileage  i.ll  be  explained  by  reference  to  a  specific



exanple; calculation of the average cumulative Mileage for  a



1978 model year  vehicle on July 1 of 1978,,  1979, 1980, and



later years.



     First* ue will calculate the average cumulative aileage



of a 1978 HI  1ST OR July 1 of 1978,,  the calendar year  an



the vehicle age is defined as I year



     e  assaee  that  the  vehicle  sales  distribution  is



constant  throughout the  year.  that  the rate  of  mileage



accrual is constant  throughout the year* and  that the  1978



sales year begins- on October I, 1977,



     fusing these assap. ions, it is  obvious that by July  1,



19?^    (3/ttths  of   the  way   through   the  sales   year}



approxiaately 75% of the  1978  nodel year vehicles have  been



                            G-2

-------
sold.   These vehicles  range in  age  tiom 0  to 9  Months.



Assuming a coastani sales distribution, their average age is




-------
on July  1 1979 is the  weighted average of   the  cumulative



mileages for these two groups of vehicles  (those sold  before



July 1 and those sold after July 1).



     Since the first group represents  9 months of  sales and



the second group represents 3  months of sales, the weighted



average cumulative  Mileage of 1978  BY vehicles on July 1



1979 can be expressed as follows;



       (3/) (T5900 + (-375)15000)   (1/1) ((.875) 15900)






     By extension, the formula for the cumulative  mileage of



1978 model year vehicles on July 1,  1960 is given  by;






(3/1) (15900 * 15000 + (.375)11000) +  (1/1) (15900 + (.875)15000)



and so on .



     Denoting  the  average  rate  of  mileage accumulation



daring the first, second, and third  years as  v t, v2, and v3,



ve can  generalize the eguations  for cumulative   mileage 00



July 1 as follows:






FIRST  YK*R: (.375) vl





SECOMD tE*Hi(3/1J (vl * (,37S)v2)   (V*) ((.875) v 1)
THUD TIA1;  (3/1) (vl + v2 *  (.375)v3)  *  (l/) (vl  *  (,87S)v2)



and so on.






     For  vehicles whose  sales   year  begins  on   January  1



(heavy  daty  trucks  and    motorcycles)   the   formulas  are

-------
edified as follows:






FUST TIAR: (l/
-------