U.S. DEPARTMENT OF COMMERCE
                                  National Technical Information Service
                                  PB-290 257
Air Pollution Regulations in
State  Implementation  Plans
District  of  Columbia

Abcor Inc, Wilmington,  MA  Walden  Div
Prepared for

Environmental Protection Agency, Research Triangle Park, NC

Aug 78

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United States
Environmental Protection
Agency
Office of Air Quality
Planning and Standards
Research Triangle Park NC 27711
EPA-450/3-78-058
August 1978
Air
Air Pollution Regulations
in  State Implementation
Plans:
District of Columbia

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TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing)
1 REPORT NO.
EPA-450/3-78-058
2.
3. RECIPIENT'S ACCESSION-NO.
QCL <") T} T n z ~7
TD ^m U ^ 3 /

4. TITLE AND SUBTITLE 5. REPORT DATE ' /
Air Pollution Regulations in State Implementation i Auqust 1978
Plans: District of Columbia
7 AUTHORIS)
6. PERFORMING ORGANIZATION CODE

8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Walden Division of Abcor, Inc.
Wilmington, Mass.
12. SPONSORING AGENCY NAME AND ADDRESS
Control Programs Development Division
10. PROGRAM ELEMENT NO.
11. CONfRACT/GRANT NO.
68-02-2890


13. TYPE OF REPORT AND PERIOD COVERED
Office of Air Quality Planning and Standards 14. SPONSORING AGENCY CODE
Office of Air, Noise, and Radiation
Research Triangle Park, NC 27711
15. SUPPLEMENTARY NOTES
EPA Project Officer: Bob Schell , Control
3rograms Development Division

16. ABSTRACT
This document has been produced in compliance with Section 110(h)(l of the Clean Air
Act amendments of 1977. The Federally enforceable regulations contained in the State
Implementation Plans (SIPs) have been compiled for all 56 States and territories
(with the exception of the Northern Mariana Islands). They consist of both the
Federally approved State and/or local air quality regulations as indicated in the
Federal Register and the Federally promulgated regulations for the State, as
indicated in the Federal Register. Regulat
categories as of January 1, 1978, have bee
this document will be updated annually. S
which have not been Federally approved as
omission of these regulations from this do
the respective Federal, State, or local ag
17.
ions which fall into one of the above
n incorporated. As mandated by Congress,
tate and/or local air quality regulations
of January 1, 1978, are not included here;
cument in no way affects the ability of
encies to enforce such regulations.

KEY WORDS AND DOCUMENT ANALYSIS
a. DESCRIPTORS
Air pollution
Federal Regulations
Pollution
State Implementation Plans
13. DISTRIBUTION STATEMENT
RELEASE UNLIMITED
b. IDENTIFIERS/OPEN ENDED TERMS c. COSATI Field/Group

19. SECURITY CLASS (This Report) 21. N
Unclassified
20. SECURITY CLASS (This page/ 22. PRICE ,•><__ / N., p
•~ ^^
Unclassified $&•*>,/ A ^ \
EPA Form 2220-1 (9-73)

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                                  EPA-450/3-78-058
    Air Pollution Regulations
in  State Implementation  Plans
                 f
             District of Columbia
                       by

                 Walden Division of Abcor, Inc.
                 Wilmington, Massachusetts
                  Contract No. 68-02-2890
                 EPA Project Officer: Bob Schell
                     Prepared for

             U.S. ENVIRONMENTAL PROTECTION AGENCY
                Office of Air, Noise, and Radiation
             Office of Air Quality Planning and Standards
             Research Triangle Park, North Carolina 27711

                     August 1978

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This report is issued by the Environmental Protection Agency to
report air pollution regulations of interest to a limited number of
readers.  Copies are available, for a fee, from the National Technical
Information Service, 5285 Port Royal Road, Springfield, VA 22161.
This report was furnished to the Environmental Protection Agency by
Walden Division of Abcor, Inc., Wilmington, Mass. 01887, in fulfillment
of Contract No. 68-02-2890.  The contents of this report are reproduced
herein as received from Walden Division of Abcor,  Inc.  The opinions,
findings, and conclusions expressed are those of the author and not
necessarily those of the Environmental Protection Agency.  Mention of
company or product names is not to be considered as an endorsement
by the Environmental Protection Agency.
                     Publication No. EPA-450/3-78-058
                                  11

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                             INTRODUCTION
     This document has been produced in compliance with Section 110(h)(l)
of the-Clean- Air Act Amendments of 1977.  The Federally enforceable
regulations contained in the State Implementation Plans (SIPs) have been
compiled for all 56 States and territories (with the exception of the
Northern Mariana Islands).  They consist of both the Federally approved
State and/or local air quality regulations as indicated in the Federal
Register and the Federally promulgated regulations for the State, as
indicated in the Federal Register.  Regulations which fall into one of
the above categories as of January 1, 1978, have been incorporated.  As
mandated by Congress, this document will be updated annually.  State
and/or local air quality regulations which have not been Federally
approved as of January 1, 1978, are not included here; omission of these
regulations from this document in no way affects the ability of the
respective Federal, State, or local agencies to enforce such regulations.

     There have been recent changes in the Federal enforceability of
parking management regulations and indirect source regulations.  The
October, 1977, appropriation bill for EPA prohibited Federal enforcement
of parking management regulations in the absence of specific Federal
authorizing legislation.  Federally promulgated parking management
regulations have, therefore, been suspended indefinitely.   Pursuant to
the 1977 Clean Air Act Amendments, indirect source regulations may not
be required for the approval of a given SIP.  Consequently, any State
adopted indirect source regulations may be suspended or revoked; State
adopted indirect source regulations contained in an applicable SIP
are Federally enforceable.  More importantly, EPA may only promulgate
indirect source review regulations which are specific to Federally
funded, operated*-or owned facilities or projects.  Therefore, the
Federally promulgated indirect source regulations appearing in this
document are not enforceable by EPA except as they relate  to Federal
facilities.

     Since State air quality regulations vary widely in their organization,
content, and language, a standardized subject index is utilized in this
document.  Index listings consist of both contaminant and  activity oriented
categories to facilitate usage.  For example, for regulations which apply
to copper smelters, one might look under sulfur compounds  (50.2), particu-
late matter process weight (50.1.1), or copper smelters (51.15).  Federal
regulations pertaining to a given State immediately follow the approved
State and local regulations.

     Additionally, a summary sheet of the information included in each
comprehensive document is presented prior to the regulatory text to
allow one to quickly assess the contents of the document.   Specifically,
the summary sheets contain the date of submittal to EPA of each revision
                                    in

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to the SIP and the date of the Federal Register in which the revision
was either approved or disapproved by EPA.  Finally, a brief description
or reference of the regulation which was submitted is also included.

     This document is not intended to provide a tool for determining
the enforceability of any given regulation.  As stated above, it is
intended to provide a comprehensive compilation of those regulations
which ara incorporated directly or by reference into Title 40, Part 52,
of the Code of Federal Regulations.  Consequently, the exclusion of a
Federally approved regulation from this document does not diminish the
enforceability of the regulation.  Similarly, the inclusion of a given
regulation (for example, regulations governing pollutants, such as odors,
for which there is no national ambient air quality standards) in this
document does not, in itself, render the regulation enforceable.
                                    IV

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                                 SUMMARY SHEET
                                      OF_
                         EPA-APPROVED REGULATION CHANGES
                               DISTRICT OF COLUMBIA
Submittal Date
   1/29/73

   3/22/74

   3/22/74

   7/17/75

   2/25/76


Section Number
   52.476
   52.478

   52.479
   52.488

   52.490
   52.491
   52.492
   52.493
   52.494
   52.495
   52.496
   52.499
Approval Date
  10/23/73

   6/23/75

   9/28/77

   5/12/76

  12/6/76
     Description
Revised Graph for
Particulate Matter
Regulations 8-2:702 and
8-2:707
Regulations 8-2:702 and
8-2:707
Regulations 8-2:709 and
8-2:724
Regulations 8-2:709 and
8-2:705
 FEDERAL REGULATIONS
     Description
Regulation for Federal Compliance Schedule
Regulation for Review of New or Modified Indirect
Sources
Source Surveillance
Regulation for the Control of Evaporative Losses
from the Filling of Vehicular Tanks
Inspection and Maintenance Program
Bicycle Lanes and Bicycle Storage Facilities
Medium Duty Air/Fuel Control Retrofit
Management of Parking Supply
Heavy Duty Air/Fuel Control Retrofit
Oxidizing Catalyst Retrofit
Vacuum Spark Advance Disconnect Retrofit
Prevention of Significant Deterioration

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                         DOCUMENTATION  OF CURRENT EPA-APPROVED
                            STATE AIR POLLUTION REGULATIONS
                            REVISED STANDARD SUBJECT INDEX
 1.0    DEFINITIONS
 2.0    GENERAL PROVISIONS AND ADMINISTRATIVE PROCEDURES
 3.0    REGISTRATION CERTIFICATES, OPERATING PERMITS AND APPLICATIONS
 4.0    AIR QUALITY STANDARDS (PRIMARY AND SECONDARY)
       4.1    PARTICULATES
       4.2   SULFUR DIOXIDE
       4.3   NITRIC OXIDES
       4.4   HYDROCARBONS
       4.5   CARBON MONOXIDE
       4.6   OXIDANTS
       4.7   OTHERS
 5.0    VARIANCES
 6.0    COMPLIANCE SCHEDULES
 7.0    EQUIPMENT MALFUNCTION AND MAINTENANCE
 8.0    EMERGENCY EPISODES
 9.0    AIR QUALITY SURVEILLANCE AND SOURCE TESTING
10.0    NEW SOURCE PERFORMANCE STANDARDS
11.0    NATIONAL EMISSIONS STANDARDS FOR HAZARDOUS AIR POLLUTANTS
12.0    MOTOR VEHICLE EMISSIONS AND CONTROLS
13.0    RECORD KEEPING AND REPORTING
14.0    PUBLIC AVAILABILITY OF DATA
15.0    LEGAL AUTHORITY AND ENFORCEMENT
16.0    HEARINGS, COMPLAINTS, AND INVESTIGATIONS
17.0    PREVENTION OF SIGNIFICANT DETERIORATION
18.0    AIR QUALITY MAINTENANCE AREA
19.0  - 49.0
       RESERVED FOR FUTURE EXPANSION OF COMMON INDEX
50.0    POLLUTANT - SPECIFIC REGULATIONS
       50.1  PARTICULATES
             50.1.1  PROCESS WEIGHT
             50.1.2  VISIBLE EMISSIONS
             50.1.3  GENERAL
                                            VI

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       50.2   SULFUR COMPOUNDS
       50.3   NITRIC OXIDES
       50.4   HYDROCARBONS
       50.5   CARBON MONOXIDE
       50.6   ODOROUS POLLUTANTS
       50.7   OTHERS (Pb, Hg, etc.)
51.0   SOURCE CATEGORY SPECIFIC REGULATIONS
       51.1   AGRICULTURAL PROCESSES (includes Grain Handling, Orchard Heaters,
              Rice and Soybean Facilities, Related Topics)
       51.2   COAL OPERATIONS (includes Cleaning, Preparation, Coal Refuse
              Disposal Areas, Coke Ovens, Charcoal Kilns, Related Topics)
       51.3   CONSTRUCTION (includes Cement Plants, Materials Handling, Topics
              Related to Construction Industry)
       51.4   FERROUS FOUNDRIES (includes Blast Furnaces, Related Topics)
       51.5   FUEL BURNING EQUIPMENT (coal, natural gas, oil) - Particulates
              (includes Fuel Content and Other Related Topics)
       51.6   FUEL BURNING EQUIPMENT (coal, natural gas, oil) - S02 (includes
              Fuel Content and Other Related Topics)
       51.7   FUEL BURNING EQUIPMENT (oil, natural gas, coal) - N02 (includes
              Fuel Content and Other Related Topics)
       51.8   HOT MIX ASPHALT PLANTS
       51.9   INCINERATION
       51.10  NITRIC ACID PLANTS
       51.11  NON-FERROUS SMELTERS (Zn, Cu, etc.) - Sulfur Dioxide
       51.12  NUCLEAR ENERGY FACILITIES (includes Related Topic)
       51.13  OPEN BURNING (includes Forest Management, Forest Fire, Fire
              Fighting Practice, Agricultural Burning and Related Topics)
       51.14  PAPER PULP; WOOD PULP AND KRAFT MILLS (includes Related Topics)
       51.15  PETROLEUM REFINERIES
       51.16  PETROLEUM STORAGE (includes Loading, Unloading, Handling and
              Related Topics)
       51.17  SECONDARY METAL OPERATIONS  (includes Aluminum, Steel and Related
              Topics)
       51.18  SULFURIC ACID PLANTS
       51.19  SULFURIC RECOVERY OPERATIONS
       51.20  WOOD WASTE BURNERS
       51.21  MISCELLANEOUS TOPICS
                                         VII

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TABLE OF CONTENTS
STATE REGULATIONS
Revised Standard
Subject Index
(2.0)
(1.0)
(1.0)
(50.2)
(50.2)
(50.3)
(50.7)
(51.5)
(51.9)
(50.1.1)
(51.13)
(50.1.3)
(50.1.2)
(12.0)
(50.6)
(7.0)
(13.0)
(9.0)
(16.0)
(16.0)
(15.0)
(5.0)
Section
Number
8-2:701
8-2:702
8-2:703
8-2:704
8-2:705
8-2:706
8-2:707
8-2:708
8-2:709
8-2:710
8-2:711
8-2:712
8-2:713
8-2:714
8-2:715
8-2:716
8-2:717
8-2:718
8-2:721
8-2:722
8-2:723
8-2:724
Title
Purpose and Scope
Definitions
Abbreviations
Use of Certain Fuel Oils Forbidden
Use of Certain Coal Forbidden
Nitrogen Oxide Emissions
Control of Organic Compounds
Fuel Burning Particulate Emission
Incinerators
Process Emissions
Open Burning
Control of Fugitive Dust
Visible Emissions
Exhaust Emissions
Odorous or Other Air Pollutants
Control Devices and Practices
Records, Reports, and Monitoring
Devices
Sampling, Tests and Measurements
Complaints and Investigations
Inspection
Orders For Compliance
Variances
Page
1
1
5
5
5
6
6
12
12
13
14
14
15
15
16
16
17
18
19
19
19
20
         VIII

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Revised Standard
Section
Subject Index
(16.0)
(15.0)
(14.0)
(9.0)
(2.0)
(2.0)
(2.0)
Revised Standard
Subject Index
(6.0)
(10.0)
(9.0)
(12.0)
(12.0)
(12.0)
(12.0)
(12.0)
(12.0)
(12.0)
(12.0)
(17.0)
Number
8-2:725
8-2:726
8-2:727
8-2:728
8-2:729
8-2:730
8-2:731
FEDERALLY
Section
Number
52.476
52.478
52.479
52.488
52.490
52.491
52.492
52.493
52.494
52.495
52.496
52.499
Title
Hearings
Penalty
Public Disclosure of Records and
Information: Confidentiality
Air Pollution Monitoring
Construction of Regulation
Independence of Sections
Effective Date
PROMULGATED REGULATIONS
Title
Federal Compliance Schedules
Review of New or Modified Indirect
Sources
Source Surveillance
Control of Evaporatives Losses from
the Filling of Vehicular Tanks
Inspection and Maintenance Program
Bicycle Lanes and Bicycle Storage
Facilities
Medium Duty Air/Fuel Control
Retrofit
Management of Parking Supply
Heavy Duty Air/Fuel Control Retrofit
Oxidizing Catalyst Retrofit
Vacuum Spark Advance Disconnect
Retrofit
Prevention of Significant
Deterioration
Page
21
21
22
22
22
23
23
Page
28
31
41
43
45
46
49
51
53
55
57
71
                                        IX

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(2.0)    Section 8-2:701.   PURPOSE AND SCOPE

              Purpose.   The purpose of this regulation is  to prevent  or minimize
         emissions as defined herein into the atmosphere and thereby  protect  and
         enhance the quality of the District's air resources so as  to promote
         the public health and welfare of the people of the  District  of Columbia,
         and to enhance and improve the environment.

              Scope.  This regulation shall apply to all operations in the  District,
         including Federal operations, where consistent with the terms of the Clean
         Air Act (42 U.S.C. Sections 1857 to 1857 1), as amended, and regulations
         promulgated thereunder, the District of Columbia  Air Pollution Control
         Act (D.C. Code, § 6-811 to 6-813), and Executive  Order No. 11507,  February
         4, 1970 (35 F.R.  2573) entitled, "Prevention, Control, and Abatement of
         Air and Water Pollution at Federal Facilities".

(1.0)    Section 8-2:702.   DEFINITIONS.

              As used in this regulation, the following terms shall have the
         meaning ascribed unless the context clearly indicates a different
         meaning:

              Act:  The District of Columbia Air Pollution Control  Act (82  Stat.
              458; D.C. Code, § 6-811 to 6-813; Public Law 90-440).

              Air Pollutant:  Dust, fumes, gas, mist, smoke, vapor, odor, particu-
              late matter, or any combination thereof, except that  such term  shall
              not include uncombined water in the atmosphere unless it presents a
              safety hazard.

              Air Pollution:  The presence in the outdoor  atmosphere  of one or more
              air pollutants in sufficient quantities and  of such characteristics
              and duration as are likely to be injurious to  public  welfare, to the
              health of human, plant or animal life, or to property,  or which
              interferes with the reasonable enjoyment of  life and  property.

              Air Quality Standard of the District of Columbia:  The primary  or
              secondary ambient air quality standard adopted by the Commissioner,
              and approved by the Environmental Protection Agency of the United
              States (EPA).

              Commissioner:  The Commissioner of the District of Columbia,  or his
              designated agents.

              Control Device:  Any device which has as its primary  function the
              control of emissions from fuel burning, refuse burning, or from a
              process, and thus reduces the creation of, or  the emission of,  air
              pollutants into the atmosphere, or both.

              District:  The District of Columbia.

              Dry Cleaning Operation:  The process by which  an organic solvent is
              used in the commercial cleaning of garments  and other materials.
                                                -1-

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Emission:  The act of releasing or discharging air pollutants into
the outdoor atmosphere from any source.

Episode Stage:  A level  of air pollution in excess of the ambient
air quality standard which may result in an imminent and substan-
tial danger to public health or welfare.  This term shall include
alert, warning, and emergency stages.

Existing Source:  Equipment, machines, devices, articles, contriv-
ances, or installations which are under construction or in operation
on the effective date of this regulation, except that any existing
equipment, machine, device, article, contrivance, or installation
which is altered, replaced, or rebuilt after the effective date of
this regulation shall be defined as a new source.

Fossil Fuel:  Natural gas, petroleum, coal, and any form of solid,
liquid, or gaseous fuel  derived from such materials.

Fossil Fuel Fired Steam Generating Unit:  A furnance or boiler, or
combination of furnaces or boilers connected to a common stack,
used in the process of burning fossil fuel for the primary purpose
of producing steam by heat transfer.

Fuel Burning Equipment:   Any furnance, boiler, apparatus, stack, and
all appurtenances thereto, used in the process of burning fuel for
the primary purpose of producing heat or power by indirect heat
transfer.

Fugitive Dust:  Solid, airborne particulate matter emitted from
any source other than through a stack.

Gasoline:  Any petroleum distillate having a Reid vapor pressure of
four (4) pounds or greater.

Incinerator:  Any furnace  used in the process of burning solid waste
for the primary purpose of reducing the volume of the waste by re-
moving combustible matter.

Loading Facility:  Any aggregation or combination of gasoline loading
equipment which is both (1) possessed by one person, and (2) located
so that all the gasoline loading outlets for such aggregation or com-
bination of loading equipment can be encompassed within any circle of
300 feet in diameter.

Modification:  Any physical change in, or change in the method of
operation of, a stationary source which increases, or decreases the
amount of any air pollutant emitted by such facility, or which re-
sults in the emission of any air pollutant not previously emitted,
except that such term shall not include the following:

      (a)   Routine maintenance,  repair,  replacement;
                                   -2-

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     (b)  An increase in the production rate,  if such increase
          does not exceed the operating design capacity of the
          affected facility;

     (c)  An increase in hours of operation,  if such increase does
          not exceed the operating design capacity of the facility;

     (d)  Use of an alternative fuel  or raw material if, prior  to
          the date any standard under this part becomes applicable
          to such facility, the affected facility is designed to
          accommodate such alternative use.

Multiple Chamber Incinerator:  Any incinerator consisting of three or
more refractory lined combustion chambers in series, physically sepa-
rated by refractory walls, interconnected by gas passage ports  or
ducts and employing adequate design parameters necessary for maximum
combustion of the material to be fumed.  The combustion chamber shall
include as a minimum, one chamber principally for ignition, one
chamber principally for mixing, and one chamber for combustion.

New Source:  Equipment, machines, devices, articles, contrivances, or
installations built or installed on or after the effective date of
this regulation, or existing at such time which are later altered,
repaired, or rebuilt.  Any such equipment, machines, devices, articles,
contrivances, or installations, moved to a new address, or operated
by a new owner, or a new lessee, after the effective date of this
regulation, shall be considered a new source.

Odor:  The property of an air pollutant which affects the sense of
smell.

Opacity:  A state which renders material partially or wholly impervious
to rays of light and causes obstruction of an observer's view.

Organic Solvents:  Volatile organic compounds which are liquids at
standard conditions, and which are used as dissolvers, viscosity
reducers, or cleaning agents.

Particulate Matter:  Any finely divided material which exists as a
liquid or solid under standard conditions, with the exception of
uncombined water.

Person:  Includes individuals, firms, partnerships, companies,  cor-
porations, trusts, associations, organizations, or any other private
or public entitles.

Photochemically Reactive Solvent:  Any solvent with an aggregate of
more than 20 percent of its total volume composed of the chemical
compounds classified below or which exceeds any of the following
individual percentage composition limitations, as applied to the
total volume of solvent.
                                 -3-

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     (i)  A combination of hydrocarbons, alcohols,  aldehydes,  esters,
          ethers, or ketones having an olefinic or  cycloolefinic
          type of unsaturation:  five percent;

    (ii)  A combination of aromatic compounds with  eight or more
          carbon atoms to the molecule except ethyl benzene:  eight
          percent;

   (iii)  A combination of ethylbenzene or ketones  having branched
          hydrocarbon structures, fichloroethylene or toluene:
          twenty percent.

Process:  Any action, operation, or treatment of materials, includ-
ing handling and storage thereof, which may cause the discharge of
an air pollutant or pollutants, into the atmosphere, excluding fuel
burning and refuse burning.

Process Weight:  The total weight in pounds of all  materials intro-
duced into any specific process.

Process Weight Per Hour:  The process weight divided by the number
of hours in one complete operation, excluding any time during which
equipment is idle.

Smoke:  Small gas-borne particles resulting from incomplete combustion,
consisting predominantly, but not exclusively, of carbon, ashes, or
other combustible material.

Solid Waste:  Refuse, more than 50 percent of which is waste consisting
of a mixture of paper, wood, yard wastes, food wastes, plastics,
leather, rubber, and other combustibles, and noncombustible materials
such as glass and rock.

Source:  Any property, real or personal, which emits or may emit any
air pollutant.

Stack:  Any chimney, flue, conduit, or duct arranged to conduct
emissions to the outdoor atmosphere.

Standard Conditions:  A dry gas temperature of 70°  Fahrenheit and a
gas pressure of 14.7 pounds per square inch absolute.

Stationary Source:  Any building, structure, facility, or installation
which emits or may emit air pollutants.

Submerged Fill Pipe:  Any fill pipe, the discharge opening of which
is entirely submerged when the liquid level is 6 inches above the
bottom of the tank.  This term shall also include,  when applied to
a tank which is loaded from the side, a fill pipe adequately covered
at all times during normal working of the tank.
                                  -4-

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              Volatile Organic Compounds:   Any compound containing carbon and
              hydrogen or containing carbon and hydrogen in combination with  any
              other element which has a vapor pressure of 1.5 pounds per square
              inch absolute or greater under actual  storage conditions.

(1.0)    Section 8-2.703.   ABBREVIATIONS.   As used in this regulation,  the follow-
         ing abbreviations shall  have the  meaning described below:

              B.T.U.  - British thermal unit.
              cal. -  calorie(s).
              CO - Carbon Monoxide.
              g. - gram(s).
              Ib.  - pound(s).
              No.  - number.
              % -  percent.
              N02  - Nitrogen Dioxide.
              S0~  - Sulphur Dioxide.
              hr.  - hour(s).
              ppm - parts per million.
              Hi-Vol.  - high volume  samples.
              CoHs -  coefficient  of  haze.
              ug/m3 -  microgram(s) per cubic meter.
              0 -  degree.
              max. -  maximum.
              U.L. -  Underwriters Laboratories located at
                     207 East Ohio Street
                     Chicago,  Illinois  60611

(50.2)    Section 8-2:704.   USE OF CERTAIN  FUEL OILS FORBIDDEN.

              No person shall  purchase, sell, offer for sale, store, transport,  use,
         cause the use of, or permit the use of, fuel oil which contains more than
         }% sulfur by weight in the  District, if such fuel oil is to be burned in
         the District.

              After the end of the twelfth complete month occurring immediately
         after the effective date of the Air Quality Ammendment No. II  - relating
         to the Sulfur Content of Fuels Act, the sulfur content of such fuel  oil
         shall not exceed 0.5% by weight.

(50.2)    Section 8-2:705.   USE OF CERTAIN  COAL FORBIDDEN.

              No person shall  purchase, sell, offer for sale, store, transport,
         use, cause the use of, or permit  the use of coal which contains more than
         1% sulfur by weight in the  District, if such coal is to be burned in the
         District.  On and after  the end of the twelfth complete month  occurring
         immediately after the effective date of the Air Quality Ammendment No.  II  -
         relating  to the Sulfur Content of Fuels Act, the sulfur content of such
         coal shall not exceed 0.5%  by weight:  Provided, that when the Commis-
         sioner certifies in writing that  the combustion-gas-desulfurization
         system used at a stationary source results in sulfur oxide emission  no
         greater than the emissions  normally resulting from the burning of coal
         with 1% sulfur content and, after the end of the twelfth complete month
                                                -5-

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         occurring  immediately  after  the effective  date of the Air Quality Ammendment
         No.  II  - relating to the Sulfur  Content of Fuels  Act,  the  sulfur  content
         of such coal  shall  not exceed 0.5% sulfur  content,  coal  of  a  higher  sulfur
         content may be burned at such stationary source.  Application for a  certi-
         fication shall be made in writing to the Commissioner  by the  owner or
         operator of such stationary  source and, upon presentation  to  a seller
         of such certification, a copy of which shall be  retained by the seller,
         the sale,  purchase, and transportation of  such coal  shall  be  permitted.

(50.3)   Section 8-2:706.  NITROGEN OXIDE EMISSIONS.

              (a)  Designation of Affected Facilities.  This section shall apply
                   to fossil fuel-fired steam generating  units  of more than
                   100,000,000 B.T.U. per hour heat input.

              (b)  Standard of Nitrogen Oxides.  No person shall  discharge, or
                   cause the discharge into the atmosphere of nitrogen oxides in
                   excess of the emission limits set forth hereinafter in  Appendix
                   No. 3.

(50.4)   Section 8-2:707.  CONTROL OF ORGANIC COMPOUNDS.

              (a)  Storage of Petroleum Products.  A person  shall not  place,  store
                   or hold in any stationary tank,  reservoir or other  container of
                   more than 40,000 gallons capacity any  gasoline or any petroleum
                   distillate having  a vapor pressure of  1.5 pounds  per square  inch
                   absolute or greater under actual storage  conditions, unless  such
                   tank, reservoir or other container is  a pressure  tank maintaining
                   working pressures  sufficient at  all  times to prevent hydrocarbon
                   vapor or gas loss  to the atmosphere, or is designed and equipped
                   with one of the following vapor loss control  devices in good
                   working order and  in operation.

                        (1)  A floating roof, consisting  of  a pontoon  type or
                             doubledeck type roof,  resting on the surface  of  the
                             liquid contents and equipped with  a closure seal,  or
                             seals, to close the space between the  roof edge  and
                             tank wall.  The control  equipment provided for  in
                             this paragraph shall not be  used if the gasoline or
                             petroleum distillate has a  vapor pressure of  11.0
                             pounds per square inch absolute or greater under
                             actual storage conditions.   All tank gauging  and
                             sampling devices shall be gas-tight except when
                             gauging  or sampling is taking place.

                        (2)  A vapor  recovery system, consisting of a  vapor
                             gathering system capable of  collecting the hydro-
                             carbon vapors and gases so  as to prevent  their  emission
                             to the atmosphere and with all  tank gauging and  sampling
                             devices  gas-tight except when gauging  or  sampling is
                             taking place.
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          (3)   Other equipment of equal  efficiency,  provided  such
               equipment is submitted to and  approved  by  the  Commis-
               sioner.

(b)   Volatile  Organic Compounds or Gasoline Loading  into  Tank Trucks,
     Trailers  and Railroad Tank Cars.A person shall  not load volatile
     organic compounds  or gasoline into any tank truck, trailer, or
     railroad  tank car  from any loading facility unless such  loading
     facility  is equipped with a vapor collection and  disposal  system
     or its equivalent  in good working order  and in  operation.  When
     loading is effected through the hatches  of a tank truck, trailer,
     or railroad tank car with a loading arm  equipped  with a  vapor
     collecting adaptor, a pneumatic, hydraulic or other  mechanical
     means shall be provided to force a vapor-tight  seal  between the
     adaptor and the hatch.  A means shall  be provided to prevent
     liquid drainage from the loading device  when it is removed from
     the hatch of any tank truck, trailer,  or railroad tank car, or
     to accomplish complete drainage before such removal.

     When loading is effected through means other than hatches, all
     loading and vapor lines shall be equipped with  fittings  which
     make vapor-tight connections and which close automatically when
     disconnected.

     The vapor disposal portion of the system shall  consist of one
     of the following:

          (1)   A vapor-liquid absorber system with a minimum  recovery
               efficiency of 90 percent by  weight of all  the  hydro-
               carbon vapors and gases entering such disposal system.

          (2)   A variable vapor space tank, compressor, and fuel gas
               system of sufficient capacity  to receive all hydrocarbon
               vapors and gases displaced from tank  trucks, trailers
               and railroad tank cars being loaded.

          (3)   Other equipment of at least  90 percent efficiency,  pro-
               vided such equipment is submitted to  and approved  by
               the Commissioner.

(c)   Volatile Organic Compounds or Gasoline Transfer Vapor Control.

          (1)   No person shall transfer volatile organic  compounds or
               gasoline from any delivery vessel into any stationary
               storage container with a capacity greater  than 250
               gallons unless such container  is equipped  with a sub-
               merged fill pipe and unless  the displaced  vapors from
               the storage container are processed by a  system that
               prevents release to the atmosphere of no  less  than
               90 percent by weight of organic compounds  in said
               vapors displaced from the stationary  container location.
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     (A)  The vapor recovery portion of the system shall
          include one or more of the following:

          (i)  A vapor-tight (dry break) vapor return line
               from the storage container to the delivery
               vessel and system that will ensure that the
               vapor return line is connected before gaso-
               line can be transferred into the container.

         (ii)  Refrigeration-condensation system or equiva-
               lent designed to recover no less than 90
               percent by weight of the organic compounds
               in the displaced vapor.

     (B)  If a "vapor-tight vapor return" system is used  to
          meet the requirements of this section, the system
          shall be so constructed as to be adapted to retro-
          fit with an absorption system, refrigeration-
          condensation system, or equivalent vapor removal
          system, and so constructed as to anticipate compli-
          ance with Section 8-2:707 (d).

     (C)  The vapor-laden delivery vessel shall be subject
          to the following conditions:

          (i)  The delivery vessel must be so designed and
               maintained as to be vapor-tight at all times.

         (ii)  The vapor-laden delivery vessel may be refilled
               only at facilities equipped with a vapor re-
               covery system or the equivalent which can  re-
               cover at least 90 percent by weight of the
               organic compounds in the vapor displaced from
               the delivery vessel during refilling,

(2)  The provisions of this paragraph (c) shall not apply to
     the following:

     (A)  Any container having a capacity less than 2,000
          gallons installed prior to promulgation of this
          paragraph; provided, however, said containers are
          equipped with submerged fill pipes.

     (B)  Transfer made to storage tanks equipped with float-
          ing roofs or their equivalent.

(3)  Compliance Schedule:

     Every owner or operator of a stationary storage con-
     tainer or delivery vessel subject to this section para-
     graphs (a), (b), and (c) herein shall meet the following
     compliance schedule:
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               (A)   Any owner or operator  in  compliance with  this
                    section  on the effective  date  of  this  regulation
                    shall  certify such  compliance  to  the Commissioner
                    no later than 45  days  following the effective
                    date of  this section.

               (B)   Any owner or operator  who achieves compliance
                    with this section after the  effective  date  of
                    this section shall  certify such compliance  to
                    the Commissioner  within five days of the  date
                    compliance is achieved.

          (4)   Any  owner or  operator  of a  source subject to paragraphs
               (a), (b), and (c) of this section may, not  later than
               45 days following the  effective date of this section,
               submit to the Commissioner  for approval a proposed  com-
               pliance schedule that  demonstrates  compliance  with  the
               provisions specified in  paragraphs  (a),  (b), and (c)
               of this section as expeditiously  as practicable  but
               no later than June 30, 1974.   The compliance schedule
               shall  provide for increments of progress toward  compli-
               ance.   The dates for achievement  of such increments of
               progress shall be specified.   Increments of progress
               shall  include, but not be limited to:

               (A)   Submittal of final  control plan to the Commissioner;

               (B)   Letting  of necessary contracts for construction
                    process  of changes  or  issuance of orders  for the
                    purchase of component  parts  to accomplish emission
                    control  or process  modification;

               (C)   Initiation of on-site  construction or  installation
                    of emission control equipment  or  process  modifica-
                    ti on;

               (D)   Final  compliance.

          (5)   Any  owner or  operator  who submits a compliance schedule
               pursuant to this paragraph  shall, within five  days  after
               deadline for  each increment of progress certify  to  the
               Commissioner  whether or  not the required increment  of
               the  approved  compliance  schedule has been met.

(d)   Control  of Evaporative  Losses from the Filling of Vehicular Tanks:

          (1)   No person shall transfer gasoline to an automotive  fuel
               tank from gasoline dispensing  systems  unless the transfer
               is made through a fill nozzle  designed to:

               (A)   Prevent  discharge of hydrocarbon  vapors to  the
                    atmosphere from either the vehicle  filler neck
                    or dispensing nozzle.
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     (B)   Direct vapor displaced from the automotive  fuel
          tank to a system wherein  at least  90  percent  by
          weight of the organic compounds in displaced
          vapors are recovered.

     (C)   Prevent automotive fuel  tank overfills  or  spillage
          on fill nozzle disconnect.

(2)   The  system referred to in paragraph  (d) (1)  of  this
     section may consist of a vapor-tight return  line from
     the  fill  nozzle filler neck interface to the dispensing
     tank or to an adsorption, absorption, incineration,
     refrigeration-condensation system or its equivalent.

(3)   Components of the systems required by paragraph  (c) of
     this section can be used for compliance with paragraph
     (d)  (1) of this section.

(4)   If it is demonstrated to the satisfaction  of the Com-
     missioner that it is impractical  to  comply with  the
     provisions of paragraph (d) (1)  of this section  as a
     result of vehicle fill neck configuration, location, or
     other design features of a class of  vehicles, the
     provisions of this section shall  not apply to such
     vehicles.  However, in no case shall such  configuration
     exempt any gasoline dispensing facility from installing
     and  using in the most effective  manner  a system  re-
     quired by paragraph (d) (1) of this  section.

(5)   Every owner or operator of a gasoline dispensing system
     subject to this section shall  comply with  the following
     compliance schedule:

     (A)   January 1, 1975 - Submit to the Commissioner  a
          final control plan, which describes at  a minimum
          the steps which will be taken by the  source to
          achieve compliance with the provisions  of  para-
          graph (d) (1) of this section.

     (B)   March 1, 1975 - Negotiate and sign all  necessary
          contracts for emission control  systems, or issue
          orders for the purchase of component  parts  to
          accomplish emission control.

     (C)   May 1, 1975 - Initiate on-site  construction or
          installation of emission control equipment.

     (D)   May 1, 1977 - Complete on-site  construction or
          installation of emission control equipment or
          process modification.

     (E)   May 31, 1977 - Assure final compliance  with the
          provisions of paragraph (d) (1) of this section.
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               (F)   Any owner or operator of sources  subject  to  the
                    compliance schedule in this  paragraph  shall  certify
                    to the Commissioner within five days after the
                    deadline for each  increment  of progress,  whether
                    or not the required increment  of  progress has been
                    met.   (Note:  Dates given in (5)  (A),  (B), and  (C)
                    have been suspended until further notice.)

          (6)   Paragraph (d)(5) of this section  shall  not  apply:

               (A)  To a source which is presently  in  compliance  with
                    paragraph (d) (1)  of this section and  which  has
                    certified such compliance to the  Commissioner by
                    January 1, 1975.   The Commissioner may request
                    whatever information he considers necessary  for
                    proper certification.

               (B)   To a source whose  owner or operator submits  to
                    the Commissioner by June 1.  1974, a proposed
                    alternative schedule.   No such schedule may  pro-
                    vide for compliance after May  31, 1977.   If  pro-
                    mulgated by the Commissioner such schedule shall
                    satisfy the requirements of  this  paragraph for
                    the affected source.
(e)   Dry Cleaning Operation:
          (1)  No person shall  operate a dry cleaning operation  using
               other than perch!oroethylene, 1,1,  1-trichloroethane,
               or saturated halogenated hydrocarbons unless the  uncon-
               trolled organic  emissions from such  operation are re-
               duced at least 85 percent; provided  that dry cleaning
               operations emitting less than three  pounds  per hour and
               less than 15 pounds per day of uncontrolled organic
               materials are exempt from the requirement of this section.

          (2)  If incineration  is used as a control  technique,  90
               percent or more  of the carbon in the organic emissions
               being incinerated must be oxidized to carbon dioxide.

          (3)  Any owner or operator of a source subject to this
               section shall achieve compliance with the requirements
               of paragraph (1) (1) of this section  by discontinuing
               the use of photochemically reactive  solvents no  later
               than April  1, 1974, or by controlling emissions  as re-
               quired by paragraphs (1) and (2) of  this section  no later
               than May 31, 1975.
(f)   Organic Solvents:
          (1)   No person shall  discharge into the atmosphere  more than
               15 pounds of photochemically reactive solvents in  any
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                             one day,  no more than 3 pounds in any one hour,  from
                             any article, machine, equipment or other contrivance,
                             unless the uncontrolled organic emissions are  reduced
                             by at least 85 percent.

                        (2)   No person shall  discharge into the atmosphere  more  than
                             40 pounds of non-photochemically reactive solvents  in
                             any one day, nor more than 8 pounds in any one hour,
                             from any  article, machine, equipment or other  contri-
                             vance, unless the uncontrolled organic emissions are
                             reduced by at least 85 percent.  Dry cleaning  operations
                             are exempt from the requirements of this paragraph.

              (g)   Pumps and Compressors.  All pumps and compressors handling volatile
                   organic compounds shall have mechanical  seals or other equivalent
                   equipment approved  by the Commissioner.

              (h)   Waste Gas Disposal  from Ethylene Producing Plant.   No person  shall
                   cause, suffer, or allow the emission of a waste gas stream from
                   any ethylene producing plant, or source utilizing ethylene as a
                   raw material, into  the atmosphere in excess of 20 pounds per  24-
                   hour period, unless the waste gas stream is properly burned at
                   1,300° Fahrenheit for 0.3 of a second or longer in a direct-flame
                   after-burner, or is removed by a method of comparable efficiency
                   approved  by the Commissioner.

              (i)   Waste Gas Disposal  from Vapor Blow-Down System.  No person shall
                   emit hydrocarbon gases into the atmosphere from a vapor  blow-
                   down system, unless these gases are burned by smokeless  flares,
                   or an equally effective control device approved by the Commis-
                   sioner, but this subsection shall  not apply to accidental  or
                   emergency emissions of hydrocarbons needed for safe operation
                   of equipment and processes.

(51.5)    Section 8-2:708.  FUEL BURNING PARTICULATE EMISSION.

              No person shall cause, suffer, or allow to be emitted into the out-
         door atmosphere from any fuel-burning equipment or premises, or to pass
         from a stack, particulate matter in flue gases which exceeds 0.13  pounds
         per 1,000,000 B.T.U. per hour total  input.  For installations using more
         than 3,500,000 B.T.U. per hour total input, the particulate emission
         limitation shall decrease as  the rate of heat input increases, according
         to the scales in Figure No. 1, contained hereinafter in Appendix No. 1.

(51.9)    Section 8-2:709.  INCINERATORS.

              (a)   Single Chamber and  Flue-Fed Incinerators.  The use of single
                   chamber and flue-fed incinerators is prohibited.  No person
                   shall be  permitted  to use an incinerator unless it is of multi-
                   ple chamber design, and otherwise in compliance with this regu-
                   lation.
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              (b)   Incinerators  Built  Before  Prohibition  is  Effective.  No person
                   shall  commence  operation of  any  new  incinerator after enactment
                   of this  regulation  which emits more  than  0.03 grains of particu-
                   late matter per standard dry cubic foot of exhaust gas  (maximum
                   two-hour average) corrected  to 12% carbon dioxide.

              (c)   Existing Incinerators.  After July 4,  1973,  no person shall
                   continue use  of any incinerator  which  is  in  existence at the
                   time of  enactment of these regulations which incinerator is of
                   more than 400 pounds per hour capacity, or which  emits more than
                   0.08 grains of  particulate matter per  standard dry cubic foot of
                   exhaust  gas (maximum two-hour average) corrected  to 12% carbon
                   dioxide.

              (d)   New Incinerators Prohibited. After  July  4,  1975, no new incinera-
                   tor shall  commence  operation except  where the Commissioner shall
                   find that any other system of waste  disposal would endanger the
                   public health.

              (e)   District Owned  Incinerator.   The District facility known as Solid
                   Waste Reduction Center No. 1 shall be  operated so as not to dis-
                   charge into the atmosphere particulate matter which is  in excess
                   of .08 grains of particulate matter  per standard  dry cubic foot
                   of exhaust gas  (maximum two-hour average) corrected to  12% carbon
                   dioxide.

              (f)   Hours of Operation.  No person shall operate or cause or permit
                   the operation of any incinerator at  any time other than between
                   the hours of 10:00  a.m. and  4:00 p.m.  This  restriction shall not
                   apply to incinerators having a refuse-burning capacity  of five  (5)
                   tons per hour or more.

(50.1.1) Section 8-2:710.  PROCESS EMISSIONS.

              (a)   Particulates.  No person  shall cause,  suffer, or  allow  discharge
                   of particulate  matter into the atmosphere from any process which
                   exceeds  the emission limits  set  forth  in  the table contained
                   hereinafter as  Appendix No.  2.   On and after July 1,  1972, such
                   allowable limits shall not exceed 0.03 grains per standard dry
                   cubic foot of exhaust gas.  Where the  process or  the  design of
                   equipment is such as to  permit more  than  one interpretation of
                   this section, the interpretation that  results  in  the  minimum
                   value of allowable  emissions shall apply.   Adding diluted air
                   to the exhaust  gas  stream for the purpose of complying  with the
                   provisions of this  subsection is prohibited.

              (b)   Sulfur Oxides.   No  person  shall  cause, suffer or  allow  discharges
                   into the atmosphere of sulfur oxides calculated as  sulfur  dioxide,
                   in excess of 0.05%  by volume.
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(51.13)   Section  8-2:711.   OPEN BURNING.

              (a)  Prohibition  of Open  Burning.   Except  as  otherwise  provided  by
                   subsection (b), no person  shall  ignite,  cause  to be  ignited,
                   permit  to be ignited,  or maintain,  any open  fire.

              (b)  Exceptions.   Open fires  may  be permitted for one or  more of the
                   following reasons or purposes:

                   (1)   The performance of  an official duty by  any public  health
                        or public safety officer, after  notification  to the Commis-
                        sioner;

                   (2)   Prevention of a fire  hazard which cannot  be abated by  other
                        means;

                   (3)   Instruction of  public fire fighters under the supervision
                        of a designated fire  marshal;

                   (4)   Recreational purposes,  including the cooking  of food for
                        human consumption on  other than  commercial premises; or

                   (5)   Providing warmth for  construction or other workers by  use
                        of Salamander heaters or other heating  devices  approved by
                        the Commissioner.

(50.1.3)  Section  8-2:712.   CONTROL OF FUGITIVE  DUST.

              No  person shall cause, suffer,  allow, or permit any materials to be
         handled, transported,  or stored; or  a  building  its appurtenances, or  a
         road, to be used, constructed, altered, repaired,  or demolished without
         taking reasonable precautions  to prevent particulate matter  from  becoming
         airborne.   Such reasonable precautions shall  include,  but are  not limited
         to,  the  following:

              (a)  Use, where possible, of  water or chemicals for control  of dust
                   in the  demolition of existing buildings  or structures,  construc-
                   tion operations, the grading of roads, or the  clearing  of land;

              (b)  Application of asphalt,  oil, water, or suitable chemicals on
                   dirt roads,  materials, stockpiles,  or other  surfaces which  can
                   create  airborne dusts;

              (c)  Installation and use of  hoods, fans,  and fabric filters to  en-
                   close and vent the handling  of dusty  materials, and  employment
                   of adequate containment  methods during sandblasting  or  similar
                   operations;

              (d)  Covering, at all times when  in motion, the contents  of  open
                   bodied  trucks transporting materials  likely  to become airborne;
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              (e)   Paving of roadways  and their maintenance  in  a  clean  condition;
                   and,

              (f)   Prompt removal  of earth or other material  from a  paved  street,
                   where the earth or  other material  has  been transported  thereto
                   or accidentally deposited by trucking  or  earth moving equipment
                   or erosion by water.

(50.1.2)  Section 8-2:713.  VISIBLE EMISSIONS.

              Except as  otherwise provided in this regulation,  no person shall
         cause,  suffer or allow to be  emitted into the outdoor  atmosphere,  visible
         emissions from  stationary sources:  Provided, That  discharges  not exceeding
         20% opacity shall  be permitted for 2 minutes in  any 60 minute  period and
         for an  aggregate of 12 minutes in any 24 hour period until  August 31,  1973.
         These discharges shall be allowed only for "start-up", cleaning,  soot
         blowing,  and/or adjusting combustion controls of boilers.   Where  the
         presence  of uncombined water  is the only reason  for failure of an emission
         to meet the requirements of this section, this section shall not  be  appli-
         cable.   The provisions of this section shall not apply to visible emissions
         from interior fireplaces, or  from sources set forth in Section 8-2:711(b).

(12.0)    Section 8-2:714.  EXHAUST EMISSIONS.

              (a)   Gasoline Powered Motor Vehicles.  No person  shall  cause, suffer,
                   or allow visible smoke emissions from  the engines or exhaust
                   systems of gasoline powered motor vehicles.

              (b)   Diesel Powered Motor Vehicles.  No person shall  cause,  suffer,
                   or allow visible smoke emissions from  the engines or exhaust
                   systems of disel powered motor vehicles,  except that emissions
                   of 20% equivalent opacity shall be permitted not more than 5
                   consecutive seconds.

              (c)   Engine Idling.   No  person, nor his servants  or agents,  shall
                   cause, suffer, permit or allow the engine of a gasoline, or
                   disel powered motor vehicle including  private  passenger vehicles,
                   on public or private space to idle for more  than 3 minutes
                   while such motor vehicle is parked, stopped  or standing, except
                   as follows:

                   (1)  To permit the  operation of power  takeoff  equipment such as,
                        but not limited to dumping, cement mixers, refrigeration
                        systems, content, delivery, winches  or  shredders.

                   (2)  To permit the  operation for 15 minutes  of air conditioning
                        equipment on buses with an occupancy of 12 or more persons.

                   (3)  To permit the  operation of heating equipment when  the local
                        temperature is 32° Fahrenheit or below.

              (d)   Lead  Content Reduction.  After July 4, 1974, all  gasoline service
                   stations shall  offer for sale at least one grade of  regular
                   gasoline which contains no more than .03  gram  of lead  per gallon.
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                   After January 1,  1974 no  gasoline  containing more  than  2.0
                   grams of lead per gallon  shall  be  sold.  After January  1, 1976
                   no gasoline containing more  than 1.0  grams of lead per  gallon
                   shall be sold.

(50.6)    Section 8-2:715.   ODOROUS OR OTHER  AIR POLLUTANTS.

              (a)  Injurious Pollutants.   No person shall  cause, suffer, or allow
                   an emission into  the atmosphere of odorous or other air pollu-
                   tants from any source in  such quantities and of  such character-
                   istics and duration as is, or is likely to be injurious to  the
                   public health or  welfare, or which interferes with the  reasonable
                   enjoyment of life and property.

              (b)  Odor Violations.   The emission of  an  odor shall  be deemed a
                   violation when after separate complaints of 3 or more persons:

                   (1)   The Commissioner using  the Barnebey-Cheney  Scentometer at
                        Number 1 odor strength  detects an  odor; or

                   (2)   The Commissioner using  any other device approved by him as
                        an effective instrument in the detection of odors, records
                        an odor.

(7.0)     Section 8-2:716.   CONTROL DEVICES AND  PRACTICES.

              (a)  Motor Vehicles.  No person shall remove or cause,  or permit to
                   become inoperative or ineffective  devices installed by  motor
                   vehicle manufacturers for the purpose of controlling emissions
                   or otherwise complying with  law.

              (b)  Stationary Sources.  No person shall  remove, or  cause,  or permit
                   to become inoperative or  ineffective  devices or  practices pro-
                   vided for the control  of  air pollutants discharged from stationary
                   sources, or otherwise complying with  law.

                   (1)   Shutdown of Stationary  Source Control Equipment.   Whenever
                        it is necessary to shut down  air pollution  control equipment
                        for periodic maintenance, the owner or operator of such
                        equipment shall report  the planned shutdown to the Commis-
                        sioner at least 48 hours prior thereto.  Such prior notice
                        shall include, but is not limited  to, the following:

                        A.   Identification  of  the specific facility  to be taken
                             out of service  as  well as its location and permit
                             number;

                        B-   The expected length of time that the air pollution
                             control  equipment  will be out of service;
                             The nature and quantity of emissions of air pollutants
                             likely  to occur during the shutdown period:
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                        D.    Measures that will  be taken  to  minimize  the  length
                             of the shutdown  period;  and

                        E.    The reasons that it would be impossible  or impractical
                             to shut down the source  operation  during the maintenance
                             period.

                   (2)   Notification by Commissioner.   The Commissioner shall  by
                        notice to the owner or operator permit  the  continued opera-
                        tion of the stationary source for the time  period proposed,
                        or  for such lesser time as he deems  reasonable, or he  may
                        order the owner or operator to discontinue  operation of the
                        stationary source until  the maintenance is  completed,  or the
                        malfunctioning equipment is repaired.

(13.0)    Section 8-2:717.   RECORDS. REPORTS,  AND MONITORING  DEVICES.

              (a)  Reporting of Information Upon Request  of  Commissioner.   The
                   Commissioner may require any person engaged  in operations which
                   may  result in air pollution or the handling  of products the use
                   of which may result in air pollution to file with  the  Commissioner
                   written  reports containing information as to:

                   (1)   Location and description of source;

                   (2)   The chemical composition, physical properties, and the
                        amount of any material used;  and

                   (3)   Such other information as the Commissioner  shall  require
                        for the enforcement of this regulation.

              (b)  Required Records and Periodic Reports. The  owner  or operator of
                   a stationary source which emits 25 tons or more  per year of any
                   air  pollutant shall maintain written records of  the nature  and
                   amount of emissions of such source. Such records  shall include,
                   (1)  emission data derived from stationary source monitoring and
                   measuring devices required by subsection  (c) of  this section,
                   and  (2)  the results of sampling of emissions, showing  sampling
                   methods  and procedures used.   Such records shall be made available
                   to the Commissioner during regular business  hours.

              (c)  Monitoring Devices.  The Commissioner  shall  require the owner or
                   operator of a stationary source which  emits  more than  100 tons
                   per  year of any air pollutant to install, maintain, and operate,
                   at the expense of said owner or operator, such  stationary source
                   monitoring devices as may be necessary to enable such  owner or
                   operator and the Commissioner to determine whether the source
                   is being, or will be operated in compliance  with all applicable
                   air  pollution standards, regulations,  and laws.  Monitoring
                   information shall be supplied as the Commissioner  may  require
                   in accordance with subsection (a)  of this section.
                                                -17-

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              (d)  Prohibited Devices.   No person shall  install  or use any article,
                   machine, equipment,  device, or other contrivance which conceals
                   an emission from any source.

(9.0)     Section 8-2:718.   SAMPLING, TESTS, AND MEASUREMENTS.

              (a)  General.  The Commissioner may conduct or cause to be conducted,
                   or require an owner  or operator to conduct, tests of emission of
                   air pollutants from  any source.  Upon request to the Commissioner,
                   the person responsible for the source to be tested shall  provide
                   necessary holes in stacks or ducts and such other safe and proper
                   sampling and testing facilities as may be necessary for proper
                   determination of the emission of air pollutants.  The Commissioner
                   may take or cause to be taken samples of fuel by any appropriate
                   means,  in such quantities as he feels are necessary for purposes
                   of determining compliance with this regulation.

              (b)  Particulate Matter.   Stack tests for particulate matter shall be
                   undertaken by generally recognized standards or methods of measure-
                   ment.   Methods found in the American Society of Mechanical
                   Engineers Test Code  for Determining Dust Concentration in Gas
                   Streams, PTC-27-1957, and the Los Angeles County California
                   Source  testing Manual shall be used, but such methods may be
                   modified or adjusted by the Commissioner to suit specific sampling
                   conditions or needs  based upon good practice, judgment, and
                   experience.

              (c)  Sulfur.   The method  for determining the sulfur content of fuel
                   oil shall be that described in the American Society for Testing
                   and Materials publication, D-129-64, "Standard Method of Test for
                   Sulfur  in Petroleum  Products and Lubrications by the Bomb Method".
                   The method for determining the sulfur content of coal shall be
                   that described in the American Society for Testing and Materials
                   publication, D-271-64, "Laboratory Sampling and Analysis of Coal
                   and Coke."  Equivalent methods may be approved by the Commissioner.

              (d)  Visible Emissions.  The Ringelmann Smoke Chart published and
                   described in the United States Bureau of Mines Information Circular
                   8333, or any other chart, recorder, indicator or device approved
                   by the  Commissioner  for the measurement of plume density shall be
                   used in determining  the grade of shade or opacity of visible air
                   contamination emissions.

              (e)  Odor.

                   (1)  Odor measurements shall be made with a scentometer, such
                        as that manufactured by the Barnebey-Cheney Company, or
                        by any device approved by the Commissioner as an effective
                        instrument in the detection of odor.

                   (2)  The odor strength as detected by the Barnebey-Cheney
                        Scentometer is  that number corresponding to the maximum
                        dilution when an odor is preceived on the following basis:
                                                -18-

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                     Number             Odor-Bearing Air                Odor-Free Air

                        1                    1  part             to           1  part
                        2                    1  part             to           2  parts
                        3                    1  part             to           8  parts
                        4                    1  part             to          32  parts
                        5                    1  part             to         128  parts


              (f)  Availability of Publications.   The publications  cited in this
                   section shall  be kept on file  at the office of the Director  of the
                   Department of Environmental  Services and shall be available  for
                   public  inspection.

(16.0)   Section 8-2:721.   COMPLAINTS AND INVESTIGATIONS.

              (a)  Complaints.   Any person may complain to the Commissioner about
                   air pollution conditions, violations of the Act, or violations
                   of rules, regulations, orders, or determinations of the Commis-
                   sioner.  The complaint shall provide the following information:

                   (1)  The location,  or source of the condition, or alleged
                        violation;

                   (2)  The name and address of the party  controlling the location
                        or source, if known; and

                   (3)  The factual basis for the complaint.

              (b)  Investigations.  The Commissioner shall be responsible for invest-
                   igation of such complaints.

(16.0)   Section 8-2:722.   INSPECTION.

              The Commissioner is authorized to make such  inspections of premises
         and records of operation as may be necessary for  the enforcement of  the
         Act and this regulation.

(15.0)   Section 8-2:723.   ORDERS FOR COMPLIANCE.

              Whenever the Commissioner has reason to believe that  a violation  of
         the Act or this regulation or rules made pursuant to either has occurred,
         he shall cause written notice to be served upon the alleged violator.   The
         notice shall specify the provision of the law, regulation  or rule alleged
         to be violated, the facts alleged to constitute a violation thereof, and
         shall order that necessary corrective action be taken within a reasonable
         time.  Nothing in this section shall  be construed to prevent the Commissioner
         from initiating appropriate action for the recovery of a  penalty pursuant
         to Section 8-2:726, or from seeking enforcement of this regulation by
         injunctive relief or other appropriate remedy.
                                               -19-

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(5.0)     Section 8-2:724.   VARIANCES.

              (a)  General  Conditions.
                   (1)   Any person required to perform an act by this  regulation
                        may be excused by the Commissioner from the performance of
                        such act,  either in whole or in part, upon a finding  by the
                        Commissioner that the full  performance of such act would
                        result in  exceptional or undue hardship by reason of  exces-
                        sive structural  or mechanical  difficulty, or the impractica-
                        bility of  bringing such activity into full compliance with
                        the requirements of this regulation:   Provided, That  a
                        variance may be granted only where, and to the extent
                        necessary  to ameliorate such exceptional or undue hardship,
                        and only when compensating factors are present which  are
                        adequate protection to the public health or welfare,  and
                        assure that the intent and purpose of the act, and this
                        regulation, are not impaired.   Such person shall  submit a
                        written request for a variance setting forth the nature of
                        the act required to be performed, the exceptional or  undue
                        hardship which would result from its performance, and any
                        variance from the terms of the notice and requirements of
                        this regulation which he may seek.  Such request for  a
                        variance shall be filed with the Commissioner  within  the
                        period specified in the order for compliance.

                   (2)   A variance is hereby granted for the operation of diesel
                        locomotives on common carrier railroads in the District of
                        Columbia.

              (b)   Publication in  the D.C. Register.  All requests for variances
                   shall be published in the District of Columbia Register, at the
                   expense of the  applicant, if over $5, at least 30 days before  the
                   Commissioner rules on the request.   The published notice shall
                   briefly set forth the information contained in the  applicant's
                   written request.  Any person may submit comments on the application
                   within 30 days  of the published notice.

              (c)   Commissioner to Maintain Written Record of Action on Requests.
                   The  Commissioner shall maintain a written record of all variances
                   granted and denied.  The record shall include all bases for the
                   grant or denial, and shall be available for public  inspection.

              (d)   Length of Variance.  No variance shall be granted for more than
                   one  year, and may be renewable annually if the Commissioner
                   finds that the  intent and purpose of the Act and this regulation
                   are  not impaired.  No renewal shall be granted except on applica-
                   tion therefor.   Any such application shall be made  at least sixty
                   (60) days prior to the expiration of the variance.   The require-
                   ments of subsection (b) shall apply in cases of renewal.

              (e)   Operation While Variance Request Pending.   Nothing  in this section
                   shall be construed to permit any operation in violation of this
                   regulation during the pendency of a request for a variance.
                                               -20-

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              (f)   Operation During Emergency.   Nothing in this section,  and no
                   variance or renewal  granted  pursuant hereton, shall  be construed
                   to prevent or limit  the application of the emergency provisions
                   and procedures of Section 8-2:719 of this regulation to any
                   person or his property.
(16.0)    Section 8-2:725.   HEARINGS.
              (a)  Right to Hearing.   Except as otherwise provided in this regula-
                   tion, any person aggrieved by any adverse action of the Commis-
                   sioner may have review thereof by the Commissioner in accordance
                   with the District of Columbia Administrative Procedure Act.   In
                   administration of the hearing the Commissioner may require the
                   production of persons, papers and materials under subpoena as is
                   set forth in D.C.  Code Section 1-237.

              (b)  Request for Hearing.  A request for a hearing to review adverse
                   action proposed by the Commissioner shall be made in writing
                   within 15 days following notification to the aggrieved person of
                   the contemplated action and of his right to a hearing with respect
                   to such action.

              (c)  Failure to Request Hearing or Appear at Hearing.  Upon failure
                   by an aggrieved person to request a timely hearing, or failure
                   of such party to appear at a scheduled hearing for which no con-
                   tinuance has been or is granted, the Commissioner may without a
                   hearing take the action contemplated in the notice.

              (d)  Alternative Remedies.  Nothing in this section shall be construed
                   to prevent the Commissioner from initiating appropriate action for
                   the recovery of a penalty pursuant to Section 8-2:726 of this
                   regulation, or from seeking enforcement by injunctive relief or
                   other appropriate remedy during the pendency of a review proceeding.
(15.0)    Section 8-2:726.   PENALTY.
              (a)  Any person who fails to comply with any provision of this regula-
                   tion, or who refuses, interferes with, or prevents any inspection
                   authorized by this regulation shall be punished by a fine not to
                   exceed $300 or imprisonment not to exceed 90 days, or both.   In
                   the event of any violation of, or failure to comply with, this
                   regulation, each and every day of such violation, or failure, shall
                   constitute a separate offense and the penalties described herein
                   shall be applicable to each such separate offense.

              (b)  Any person, other than a District employee who shall furnish
                   material and substantial evidence leading to the payment of a
                   fine or the forfeiture of collateral imposed under this regulation
                   shall be paid subject to appropriation one-half of each such fine
                   or forfeiture unless the Commissioner or a court of competent
                   jurisdiction shall so otherwise direct.  This section shall  not
                   be so construed as to create any right to the proceeds of any such
                                                -21-

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                   fine or forfeiture.   No person shall  receive more  than  $1,000
                   total  in any given 12 months under this  subsection.

(14.0)    Section 8-2:727.   PUBLIC DISCLOSURE OF RECORDS  AND INFORMATION:
                           CONFIDENTIALITY:

              Emission data secured as  the result of this  regulation, or other
         provisions of law shall  be correlated with applicable emission limitations
         or other control  measures and  shall  be available  for public  inpsection
         during regular business  hours  or by appointment at the offices of the air
         quality control  agency.

              Information, other  than emission data, which  relates  to production,
         sales figures, or processes of any owner or operator, shall  not be disclosed
         publicly upon finding by the Commissioner that  to  do so will result in a
         significant and adverse  effect upon the competitive position of such owner
         or operator; except in or following public hearing, or except as  may be
         necessary to protect the public health, safety  or  well-being.  Nothing
         herein shall be construed to prevent the use of such records or information
         by the Commissioner in compiling or publishing  analyses, or  summaries
         relating to the general  condition of the outdoor  atmosphere: Provided,
         That such analyses or summaries do not reveal any  information otherwise
         confidential under the provisions of this section.

(9.0)    Section 8-2:728.   AIR POLLUTION MONITORING.

              (a)  By February 1, 1973  the Commissioner  shall establish a  simpli-
                   fied,  daily, public  reporting index of  air pollution levels  in
                   the District of Columbia.   Such an index shall indicate the  levels
                   of pollutant which he determines the  public should be informed.
                   Such index shall also include a statement of the air quality
                   levels within  approximately a two mile  radius from the  White
                   House as well  as within any other geographic area  he may deter-
                   mine should be reported.   In adopting an index the Commissioner
                   shall  coordinate his efforts as closely as possible with the
                   Metropolitan Washington Council of Governments to  insure a
                   uniform regional system of air quality  levels reporting.

              (b)  By February 1, 1973  the Commissioner  shall report  to the District
                   of Columbia Council  the status of the air quality  monitoring
                   system within  the District and that system's relationship to
                   such monitoring systems in the region.   The report shall indicate
                   the number and location of permanent  air quality monitoring
                   stations in the District, the number  of average  spot checks
                   within a given month, and the types of pollution monitored in
                   each instance.  The  report shall also state the  goals for a
                   District of Columbia air quality monitoring system and  the time-
                   table and cost for achieving that goal.

(2.0)    Section 8-2:729.   CONSTRUCTION OF REGULATION.

              All regulations and parts of regulations in  effect in the  District
         which are inconsistent with the provisions of this regulation are hereby
         superseded with respect to matters covered by this regulation.
                                                -22-

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(2.0)     Section 8-2:730.   INDEPENDENCE OF SECTIONS.

              Each section and every part of each section of this  part  is  declared
         independent of every other section or part thereof, and the finding  or
         holding of any section or part thereof to be void or ineffective  for any
         cause shall not be deemed to affect any other section or  part  thereof.

(2.0)     Section 8-2:731.   EFFECTIVE DATE.

              Except as otherwise provided, this regulation shall  be effective
         immediately.
                                               -23-

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                                               APPENDIX NO. 1 FIGURE NO. 1 (Revised)
ro
-P»
i
2   3  4    6  8  10                      100                       1,000
                                    H(106 BTU/HR.)
   H =  TOTAL HEAT INPUT IN  MILLIONS OF BTU PER HOUR
   E =  MAXIMUM EMISSION IN  POUNDS OF PARTICULATE MATTER PER MILLION BTU HEAT  INPUT
                                                                                                               10,000
H
(106 BTU/HR.)
3.5
10
100
1,000
10,000
E
(#/106 BTU)
0.13
0.10
0.07
0.04
0.02

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                          APPENDIX  NO.
                                  TABLE
   Process Weight
   Per Hour in
      Pounds
Maximum Weight of
Particulate  Discharge
Per Hour in  Pounds
Process Weight
Per Hour in
   Pounds
Maximum Wei ght of
Particulate  Discharge
Per Hour in  Pounds
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
.24
.46
.66
.85
1.03
1.20
1.35
1.50
1.63
1.77
1.89
2.01
2.12
2.24
2.34
2.43
2.53
2.62
2.72
2.80
2.97
3.12
3.26
3.40
3.54
3.66
3.79
3.91
4.03
4.14
4.24
4.34
4.44
4.55
4.64
4.76
4.84
4.92
5.02
5.10
5.18
5.27
5.36
3400
3500
3600
3700
3800
3900
4000
4100
4200
4300
4400
4500
4600
4700
4800
4900
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
10000
11000
12000
13000
14000
15000
16000
17000
18000
19000
20000
30000
40000
50000
60000
or
more
5.44
5.52
5.61
5.69
5.77
5.85
5.93
6.01
6.08
6.15
6.22
6.30
6.37
6.45
6.52
6.60
6.67
7.03
7.37
7.71
8.05
8.39
8.71
9.03
9.36
9.67
10.0
10.63
11.28
11.89
12.50
13.13
13.74
14.36
14.97
15.58
16.19
22.22
28.3
34.3
40.0


*Where the process weight per hour falls between two values  in the  table,  the
 maximum weight per hour shall be determined by linear interpolation.
                                        -25-

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                              APPENDIX NO.  3

                    EMISSION LIMITS FOR NITROGEN OXIDE
     Emission limits for nitrogen oxide in fossil  fuel  fired steam
generating units of more than 100,000,000 B.T.U. per hour heat input
are as follows:

     (a)  0.20 Ib.  per million B.T.U. heat input (0.36 g. per million
          cal.), maximum 2-hour average, expressed as N02, when gaseous
          fossil fuel is burned.

     (b)  0.30 Ib.  per million B.T.U. heat input (0.54 g. per million
          cal.), maximum 2-hour average, expressed as N02> when liquid
          fossil fuel is burned.

     (c)  0.70 Ib.  per million B.T.U. heat input (1.26 g. per million
          cal.), maximum 20-hour average, expressed as N02> when solid
          fossil fuel (except lignite) is burned.

     (d)  When different fossil fuels are burned simultaneously in any
          combination the applicable standard shall be determined by
          proration, according to the following formula:

                        x (0.20) + y (0.30) + (0.70)
                                   x + y + z

     x is the percent of total heat input derived from gaseous fossil
     fuel;

     y is the percent of total heat input derived from liquid fossil
     fuel; and

     z is the percent of total heat input derived from solid fossil
     fuel.
                                       -26-

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FEDERALLY PROMULGATED



    REGULATIONS
            -27-

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(6.0)     52.476  Federal  compliance schedules.

              (a)

              (b)   (1)   The owner or operator of any  boiler  or  furnace  of more than
                        250 B.T.U.  per hour heat input  subject  to  the requirements
                        of section  8-2:705  of the Air Quality Control Regulations of
                        the District of Columbia shall  notify the  Administrator, no
                        later than  October  1, 1973, of  his intent  to utilize either
                        low-sulfur  fuel  or  stack gas  desulfurization to meet the
                        requirements of said regulation.

                   (2)   Any owner or operator of a stationary source subject to sub-
                        paragraph (1) of this paragraph who  elects low-sulfur fuel
                        and the owner or operator of  any  boiler or furnace of more
                        than 250 million B.T.U.  per hour  heat input subject to the
                        requirements of section  8-2:704 of the  Air Quality Control
                        Regulations of the  District of  Columbia shall be subject to
                        the following compliance schedule:

                        (i)  November 1, 1973 -  Submit  to the Administrator a pro-
                             jection of the amount of fuel,  by  types, that will be
                             substantially  adequate to  enable compliance with sec-
                             tions  8-2:704  and 8-2:705  of the Air  Quality Control
                             Regulations of the  District  of  Columbia on July 1,
                             1975,  and for  at least one year thereafter.

                       (ii)  December 31, 1973 - Sign contracts with fuel suppliers
                             for fuel requirements as projected above.

                      (iii)  January 31, 1974 -  Submit  a  statement as to whether
                             boiler modifications will  be required.  If modifications
                             will be required, submit plans  for such modifications.

                       (iv)  March  15, 1974 - Let contracts  for necessary boiler
                             modifications, if applicable.

                        (v)  May 15, 1974 - Initiate  onsite  construction, if
                             applicable.

                       (vi)  March  1, 1975  - Complete onsite construction, if
                             applicable.

                      (vii)  March  31, 1977 - Final compliance  with the low-sulfur
                             fuel requirements of either  section 8-2:704 or 8-2:705
                             of the Air Quality  Control Regulations of  the District
                             of Columbia.

                   (3)   Any owner or operator of a stationary source subject to sub-
                        paragraph (2) of this paragraph who  elects stack gas desul-
                        furization  shall be subject to  the following compliance
                        schedule:
                                                 -28-

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          (i)   November 1,  1973  -  Let  necessary  contracts  for con-
               struction.

         (ii)   March 1, 1974 -  Initiate  onsite construction.

        (iii)   March 1, 1975 -  Complete  onsite construction.

         (iv)   March 31, 1977 -  Final  compliance with  the  require-
               ments of section  8-2:705  of the Air  Quality Control
               Regulations  of the  District of Columbia.

          (v)   If a performance  test is  necessary for  a  determination
               as to whether compliance  has been achieved, such  a
               test must be completed  by March 31,  1977.   Ten days
               prior to the test,  a  notice must  be  given to the
               Administrator to  afford him the opportunity to have
               an observer  present.

     (4)   Any  owner or operator  subject  to the compliance  schedule  in
          either subparagraph (b)(2) or  (3) of this section shall
          certify to the Administrator within five  days  after the
          deadline for each increment  of progress,  whether or not the
          required increment of progress has been met.

     (5)   (i)   None of the  above subparagraphs shall apply to a  source
               which is presently  in compliance  with applicable  regu-
               lations and  which has certified such compliance to the
               Administrator by  October  1, 1973.  The  Administrator may
               request whatever supporting information he  considers
               necessary for proper  certification.

         (ii)   Any compliance schedule adopted by the  State and  approved
               by the Administrator  shall  satisfy the  requirements  of
               this paragraph for  the  affected source.

        (iii)   Any owner or operator subject to  the compliance schedule
               in either paragraphs  (b)(2) or (3) of this  section may
               submit to the Administrator, no later than  thirty days
               after the effective date  of this  paragraph  a proposed
               alternative  compliance  schedule.   No such final com-
               pliance schedule  may  provide for  final  compliance after
               March 31, 1977.   If promulgated by the  Administrator,
               such schedule shall satisfy the requirement of this
               paragraph for the affected source.

     (6)   Nothing in this paragraph  shall  preclude  the Administrator
          from promulgating a separate schedule  for any  source to
          which the application  of the compliance schedule in sub-
          paragraph (2) or  (3)  of  this paragraph fails to  satisfy the
          requirements of § 51.15  (b)  and (c) of this  chapter.

(c)   With respect to transportation  control strategies submitted by the
     District  of Columbia,  the requirements of § 51.15 are not fully
                                   -29-

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     met for the measures for parking surcharge,  elimination of free
     on-street commuter parking,  elimination of free employee park-
     ing, increased bus fleet and service,  and exclusive bus lanes.
     Provisions to implement the  requirements of § 51.15 are promul-
     gated in this section.

(d)  With respect to the parking  surcharge  measure approved in § 52.472:

     (1)  The District of Columbia shall  no later than June 30, 1974,
          submit to the Administrator for his approval a precise descrip-
          tion of areas within the District of Columbia which are at
          that time adequately served by  mass transit, and those areas
          which in the judgment of the District of Columbia will be
          adequately served by mass transit by June 30, 1975.  The
          documentation and policy assumptions used to select these
          areas shall  be included with this submission.

     (2)  The District of Columbia shall  by June 30, 1975, and each
          succeeding year submit  to the Administrator for his approval
          a revised list of those areas which are adequately served by
          mass transit.  Additional areas must be included as mass
          transit service is increased, unless the District of Columbia
          can affirmatively demonstrate that no additional areas can
          be included.

(e)  With respect to the measure  for elimination of free on-street
     commuter parking approved in § 52.427:

     (1)  The District of Columbia shall, no later than June 30, 1974,
          submit to the Administrator for his approval a compliance
          schedule, including legally adopted regulations, enforcement
          procedures,  and a description of  resources available.  The
          compliance schedule shall provide:

          (i)  For implementing the on-street commuter parking ban
               program in all areas within  which a surcharge will be
               required by paragraph (d)  of this section.  The program
               shall prohibit all parking for more than two hours by
               non-residents of the area  subject to the ban during the
               hours from 7 p.m., Monday  through Friday (excepting
               holidays) on any street within such areas.  The program
               shall also provide for a sticker system, under which
               residents of such  an area  may be exempted from the ban,
               and for a system (whether  by notification of the enforce-
               ment authorities,  or otherwise) for also exempting
               bona fide visitors to residents of such areas from
               the ban.

         (ii)  The precise resources that will be devoted to enforcing
               this measure, the  method of  enforcement to be used (for
               example, chalking  tires),  and the penalties for violation.
               The compliance schedule shall at a minimum provide that
               violators shall be subject to a $10.00 fine.
                                 -30-

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(10.0)    52.478    Review of New or Modified  Indirect  Sources

            (b)  Regulation for Review of New or Modified Indirect Sources

                 (1)  All terms used in this paragraph but not specifically defined
                      below shall have the meaning given them in 52.01 of this chapter.

                      (i)     The term "indirect source" means a facility, building,
                              structure, or installation which attracts or may attract
                              mobile source activity that results in emissions of a
                              pollutant for which there is a national standard.  Such
                              indirect sources include, but are not limited to:

                              (a)  Highways and roads.

                              (b)  Parking facilities.

                              (c)  Retail, commercial and industrial facilities.

                              (d)  Recreation, amusement, sports and entertainment
                                   facilities.

                              (e)  Airports.

                              (f)  Office and Government buildings.

                              (g)  Apartment and condominium buildings.

                              (h)  Education facilities.

                      (ii)    The term "Administrator" means the Administrator of the
                              Environmental Protection Agency or his designated agent.

                      (iii)   The term "associated parking area" means a parking facil-
                              ity or facilities owned and/or operated in conjunction
                              with an indirect source.

                      (iv)    The term "aircraft operation" means an aircraft take-off
                              or landing.

                      (v)     The phrase  "to commence construction" means to engage in
                              a continuous program of on-site construction including
                              site clearance, grading, dredging, or land filling specif-
                              ically designed for an indirect source in preparation for
                              the  fabrication, erection, or installation of the build-
                              ing components of the indirect source.  For the purpose
                              of this paragraph, interruptions resulting from acts of
                              God, strikes, litigation, or other matters beyond the
                              control of  the owner shall be disregarded in determining
                              whether a construction or modification program is contin-
                              uous.
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     (vi)     The  phrase  "to commence modification" means  to engage  in
             a  continuous  program  of on-site modification, including
             site clearance,  grading, dredging, or land filling  in
             preparation for  specific modification of  the indirect
             source.

     (vii)    The  term  "highway  section" means  the development  propo-
             sal  of a  highway of substantial length between logical
             termini (major crossroads, population centers, major
             traffic generators, or similar major highway control ele-
             ments) as normally included  in a  single location  study or
             multi-year  highway improvement program as set forth in
             23 CFR 770.201 (38 FR 31677).

     (viii)   The  term  "highway  project" means  all or a portion of a
             highway section  which would  result in a specific  con-
             struction contract.

     (ix)     The  term  "Standard Metropolitan Statistical  Area  (SMSA)"
             means such  areas as designated by the U.S. Bureau of the
             Budget in the following publication:  "Standard Metro-
             politan Statistical Area," issued in 1967, with subse-
             quent amendments.

(2)   The requirements  of this paragraph are applicable to the  follow-
     ing:

     (i)     In an SMSA:

             (a)   Any  new  parking  facility or  other new indirect
                  source with an associated parking area, which  has a
                  new  parking capacity of 1,000 cars or more;  or

             (b)   Any  modified  parking facility, or any modification
                  of an  associated parking area, which increases
                  parking  capacity by  500 cars or more;   or

             (c)   Any  new  highway  project with an anticipated  average
                  annual daily  traffic volume  of 20,000 or more  vehi-
                  cles per day  within  ten years of construction; or

             (d)   Any  modified  highway project which will increase
                  average  annual daily traffic volume  by  10,000  or
                  more vehicles per  day within ten years  after modifi-
                  cation.

     (11)     Outside an  SMSA:

             (a)   Any  new  parking  facility, or other new  indirect
                  source with an  associated  parking area, which  has
                  a parking  capacity of  2,000  cars or  more;   or
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             (b)   Any modified  parking facility, or any modification
                  of an  associated  parking area, which increases park-
                  ing capacity  by 1,000 cars or more.

     (iii)    Any  airport,  the construction or general modification
             program of  which is expected to result in the following
             activity within ten years of construction or modifica-
             tion:

             (a)   New airport:  50,000 or more operations per year by
                  regularly scheduled air carriers, or use by 1,600,000
                  or more  passengers per year.

             (b)   Modified airport:  Increase of 50,000 or more opera-
                  tions  per year by regularly scheduled air carriers
                  over the existing volume of operations, or increase
                  of 1,600,000  or more passengers  per year.

     (iv)     Where an indirect  source is constructed or modified in
             increments  which individually are not subject to review
             under this  paragraph,  and which are not part of a program
             of construction or modification in planned incremental
             phases approved by the Administrator, all such increments
             commenced after December 31, 1974, or after the latest
             approval hereunder, whichever date is most recent, shall
             be added together  for  determining the applicability of
             this paragraph.

(3)  No owner or operator  of an indirect source subject to this para-
     graph  shall  commence  construction or modification of such source
     after  December 31,  1974, without first obtaining approval from
     the Administrator.  Application for approval  to construct or mod-
     ify shall  be by means prescribed by the Administrator, and shall
     include a copy of any draft or final environmental impact state-
     ment which has been prepared pursuant to the  National Environmen-
     tal Policy Act (42  U.S.C.  4321).   If not included in such environ-
     mental impact statement, the Administrator may  request the follow-
     ing information:

     (i)     For all  indirect sources subject to this paragraph, other
             than highway  projects:

             (a)   The name and  address of the applicant.

             (b)   A map  showing the location of the  site  of  indirect
                  source and  the topography of the area.

             (c)   A description of  the  proposed use  of the  site, in-
                  cluding  the normal hours of operation of the facil-
                  ity, and the  general  types of activities to be op-
                  erated therein.
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        (d)  A  site  plan  showing  the  location of  associated
            parking  areas,  points of motor  vehicle  ingress and
            egress  to  and from the site and its  associated
            parking  areas,  and the location and  height of
            buildings  on the  site.

        (e)  An identification of the principal roads, highways,
            and intersections that will be  used  by  motor vehi-
            cles moving  to  or from the indirect  source.

        (f)  An estimate, as of the first year after the date
            the indirect source  will be substantially complete
            and operational,  of  the  average daily traffic vol-
            umes, maximum traffic volumes for one-hour and
            eight-hour periods,  and  vehicle capacities of the
            principal  roads,  highways, and  intersections iden-
            tified  pursuant to subdivision  (i) (e)  of this sub-
            paragraph  located within one-fourth  mile of all
            boundaries of the site.

        (g)  Availability of existing and projected  mass transit
            to service the  site.

        (h)  Where approval  is sought for indirect sources to be
            constructed in  incremental phases, the  information
            required by this  subparagraph  (3) shall be submitted
            for each phase  of the construction project.

        (i)  Any additional  information or documentation that the
            Administrator deems  necessary to determine the air
            quality impact  of the indirect  source,  including the
            submission of measured air quality data at the pro-
            posed site prior  to  construction or  modification.
(ii)     For airports:
        (a)   An estimate of the average number and maximum number
             of aircraft operations  per day by type of aircraft
             during the first,  fifth and tenth years after the
             date of expected completion.

        (b)   A description of the commercial,  industrial,  resi-
             dential and other development that the applicant
             expects will occur within three miles of the  perim-
             eter of the airport within the first five and the
             first ten years after the date of expected comple-
             tion.

        (c)   Expected passenger loadings at the airport.

        (d)   The information required under subdivisions  (i)  (a)
             through (i) of this subparagraph.
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     (iii)    For highway projects:

             (a)  A description of the average and maximum traffic
                 volumes for one, eight, and 24-hour time periods
                 expected within 10 years of date of expected comple-
                 tion.

             (b)  An estimate of vehicle speeds  for average and maxi-
                 mum traffic volume conditions  and the vehicle capac-
                 ity of the highway project.

             (c)  A map showing the location of  the highway project,
                 including the location of buildings along the right-
                 of-way .

             (d)  A description of the general features of the high-
                 way project and associated right-of-way, including
                 the approximate height of buildings adjacent to the
                 highway.

             (e)  Any additional information or  documentation that  the
                 Administrator deems necessary  to determine the air
                 quality impact of the indirect source,  including  the
                 submission of measured air quality data at the pro-
                 posed site prior to construction or modification.

     (iv)     For  indirect sources other than airports and those high-
             way  projects subject to the provisions of  paragraph (b)
             (6)  (iii) of this section, the air  quality monitoring  re-
             quirements of paragraph  (b) (3) (i) (i) of this section
             shall be limited to carbon monoxide, and shall be con-
             ducted  for a period of not more than 14 days.

(4)   (i)      For  indirect sources other than highway projects and air-
             ports,  the Administrator shall not'approve an application
             to construct or modify if he  determines that the indirect
             source will:

             (a)  Cause a violation of the control strategy of any
                 applicable state implementation plan;  or

             (b)  Cause or exacerbate a violation of the  national stan-
                 dards  for carbon monoxide in any region or portion
                 thereof.

     (ii)     The  Administrator  shall  make  the  determination pursuant
             to paragraph  (b)  (4)  (i)  (b)  of this section by evaluat-
             ing  the  anticipated concentration of carbon  monoxide at
             reasonable  receptor or exposure sites which  will be af-
             fected  by  the mobile  source activity expected to be at-
             tracted  by  the  indirect  source.   Such determination may
             be made  by  using  traffic flow characteristic guidelines
                              -35-

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             published  by  the  Environmental  Protection  Agency which
             relate  traffic  demand  and  capacity  considerations  to  am-
             bient carbon  monoxide  impact,  by  use  of appropriate at-
             mospheric  diffusion  models (examples  of which  are  refer-
             enced in Appendix 0  to Part 51  of this  chapter), and/or
             by  any  other  reliable  analytic method.   The applicant
             may (but need not) submit  with his  application, the re-
             sults of an appropriate diffusion model  and/or any other
             reliable analytic method,  along with  the technical data
             and information supporting such results.  Any  such results
             and supporting  data  submitted  by  the  applicant shall  be
             considered by the Administrator in  making  his  determina-
             tion pursuant to  paragraph (b) (4)  (i)  (b) of  this sec-
             tion.

(5)   (i)      For airports  subject to this paragraph, the Administrator
             shall base his  decision on the approval  or disapproval of
             an  application  on the  considerations  to be published  as
             an  Appendix to  this  Part.

     (ii)     For highway projects and parking  facilities specified
             under paragraph (b)  (2) of this section which  are  assoc-
             iated with airports, the requirements and  procedures
             specified  in  paragraphs (b) (4) and (6) (i) and  (ii)  of
             this section  shall be  met.

(6)   (i)      For all highway projects subject  to this paragraph,  the
             Administrator shall  not approve an  application to  con-
             struct  or  modify  if  he determines that the indirect  source
             will:

             (a)  Cause a  violation of the control strategy of  any ap-
                  plicable state  implementation  plan;  or

             (b)  Cause or exacerbate a violation of the national  stan-
                  dards for  carbon monoxide in any region or portion
                  thereof.

     (ii)     The determination pursuant to paragraph (b) (6)  (i)   (b)
             of this section shall  be made by  evaluating the anticipa-
             ted concentration of carbon monoxide at reasonable  re-
             ceptor or exposure sites which will be affected by the
             mobile  source activity expected on  the highway for the ten
             year period following the expected date of completion ac-
             cording to the  procedures specified in paragraph  (b)  (4)
             (ii) of this section.

     (iii)   For new highway projects subject  to this paragraph with
             an anticipated average daily traffic volume of 50,000 or
             more vehicles within ten years of construction,  or mod-
             ifications to highway projects subject to this paragraph
             which will increase  average daily traffic volume  by 25,000
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             or more vehicles  within  ten  years  after modification,  the
             Administrator's  decision on  the  approval  or disapproval
             of an application shall  be based on  the considerations  to
             be published as  an Appendix  to this  Part in addition to
             the requirements  of paragraph  (b)  (6)  (i)  of this  section.

(7)   The determination of the  air quality impact  of a proposed  indi-
     rect source "at reasonable receptor  or exposure sites",  shall mean
     such locations where people might reasonably be exposed  for time
     periods consistent with  the national  ambient air quality standards
     for the pollutants specified for analysis  pursuant to this para-
     graph.

(8)   (i)     Within 20 days after receipt of  an application or  addition
             thereto, the Administrator shall advise the owner  or opera-
             tor of any deficiency in the information submitted in  sup-
             port of the application.  In the event of such a defi-
             ciency, the date of receipt  of the application for the
             purpose of paragraph (b) (8) (ii)  of this section  shall
             be the date on which all required  information is received
             by the Administrator.

     (ii)    Within 30 days after receipt of  a  complete application,
             the Administrator shall:

             (a)  Make a preliminary  determination whether the  indirect
                  source should be approved,  approved with conditions
                  in accordance with  paragraphs (b) (9) or (10) of  this
                  section, or disapproved.

             (b)  Make available in at least  one  location in  each  re-
                  gion in which the proposed  indirect source  would  be
                  constructed, a copy of  all  materials submitted by the
                  owner or operator,  a copy of  the Administrator's
                  preliminary determination,  and  a copy or summary  of
                  other materials, if any, considered by the  Adminis-
                  trator in making his preliminary determination;   and

             (c)  Notify the  public,  by prominent advertisement in  a
                  newspaper of general circulation in each region  in
                  which the proposed indirect source would be con-
                  structed, of the opportunity  for written public  com-
                  ment on the information submitted by the owner or
                  operator and the Administrator's preliminary  deter-
                  mination on the approvability of the indirect source.

     (iii)   A copy of the notice required pursuant to this subpara-
             graph shall be sent to the applicant and to officials
             and agencies having cognizance over the location where
             the indirect source will be  situated, as follows:   State
             and local air pollution control  agencies, the chief exec-
             utive of the city and county,  any comprehensive regional
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             land  use  planning  agency;  and  for highways, any local
             board or  cormiittee charged with responsibility for activ-
             ities in  the  conduct of  the urban transportation planning
             process  (3-C  process) pursuant  to 23 U.S.C. 134.

     (iv)     Public comments  submitted in writing within 30 days after
             the date  such information is made available shall be con-
             sidered by  the Administrator in making his final decision
             on the application.  No  later than 10 days after the close
             of the public comment period, the applicant may submit a
             written response to any  comments submitted by the public.
             The Administrator  shall  consider the applicant's response
             in making his final decision.   All comments shall be made
             available for public inspection in at least one location
             in the region in which the indirect source would be lo-
             cated.

     (v)      The Administrator  shall  take final action on an applica-
             tion  within 30 days after the close of the public comment
             period.   The Administrator shall notify  the applicant  in
             writing of  his approval, conditional approval, or denial
             of the application, and  shall set forth  his reasons for
             conditional approval or  denial. Such notification shall
             be made available  for public inspection  in at least one
             location  in the  region in which the indirect source would
             be located.

     (vi)     The Administrator  may extend each of the time periods
             specified in paragraphs  (b)  (8) (ii),  (iv), or  (v) of
             this  section by  no more  than 30 days, or such other peri-
             od as agreed to  by the applicant and the Administrator.

(9)   (i)      Whenever  an indirect source  as  proposed  by an owner or
             operator's  application would not be permitted to be con-
             structed  for failure to  meet the tests set forth pursuant
             to paragraphs (b)  (4)  (i),  (b)  (5)  (i),  or  (b)  (6)  (i)
             and  (iii) of this  section, the  Administrator may impose
             reasonable  conditions on an  approval related to the air
             quality  aspects  of the proposed indirect source so  that
             such  source, if  constructed  or  modified  in accordance
             with  such conditions, could  meet the tests set  forth
             pursuant to paragraphs  (b)  (4)  (i),  (b)  (5)  (i), or  (b)
             (6)  (i)  and (iii)  of this section.  Such conditions may
             include,  but not be limited  to:

             (a)   Binding commitments to  roadway improvements or ad-
                  ditional mass transit  facilities  to serve  the  in-
                  direct source secured by the owner  or operator from
                  governmental  agencies having jurisdiction  thereof;

             (b)   Binding commitments by  the owner  or operator  to
                  specific programs  for mass transit  incentives  for
                  employees and patrons  of the source;   and
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              (c)   Binding  commitments  by  the  owner or operator  to con-
                   struct,  modify,  or operate  the  indirect  source in
                   such  a manner  as may be necessary  to  achieve  the
                   traffic  flow characteristics  published by  the Envi-
                   ronmental  Protection Agency pursuant  to  paragraph
                   (b)  (4)  (ii) of  this section.

      (ii)     The  Administrator may specify that any  items  of informa-
              tion provided in an application  for  approval  related to
              the  operation of an indirect source  which  may affect the
              source's  air  quality  impact  shall  be considered permit
              conditions.

(10)   Notwithstanding the provisions relating  to modified indirect
      sources contained  in  paragraph (b) (2) of  this  section, the Ad-
      ministrator  may condition any approval by  reducing the  extent to
      which the indirect source may be  further modified  without  resub-
      mission for  approval  under  this paragraph.

(11)   Any owner or operator who fails to construct an indirect source
      in accordance with the application as approved  by  the Administra-
      tor;   any owner or operator who fails to construct and  operate an
      indirect source in accordance with conditions  imposed by the Ad-
      ministrator  under paragraph (b)  (9)  of this  section;  any  owner
      or operator  who modifies an indirect source  in  violation of con-
      ditions imposed by the Administrator under paragraph  (b) (10) of
      this section;  or any owner or operator  of an  indirect  source
      subject to this paragraph who commences  construction  or modifi-
      cation thereof after  December 31, 1974,  without applying for and
      receiving approval hereunder, shall  be subject  to  the penalties
      specified under section 113 of the Act and shall be considered  in
      violation of an emission  standard or limitation under section 304
      of the Act.   Subsequent modification to  an approved  indirect
      source may be made without  applying for  permission pursuant to
      this paragraph only where  such modification  would  not violate any
      condition imposed pursuant  to paragraphs (b) (9) and  (10)  of this
      section and  would not be  subject  to the  modification  criteria set
      forth in paragraph (b) (2)  of this section.

(12)   Approval to  construct or  modify shall become invalid  if construc-
      tion or modification  is not commenced within 24 months  after  re-
      ceipt of such approval.  The  Administrator may  extend such time
      period upon  satisfactory  showing  that an extension is justified.
      The applicant may apply for such  an extension  at the  time  of  ini-
      tial application or at any  time thereafter.

(13)   Approval to construct or modify shall not  relieve  any owner or
      operator of the responsibility to comply with  the  control  strategy
      and all local, State  and  Federal  regulations which are  part of  the
      applicable State implementation plan.
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(14)   Where the Administrator delegates  the responsibility for imple-
      menting the procedures for conducting indirect source review pur-
      suant to this paragraph to any agency, other than a regional  of-
      fice of the Environmental  Protection Agency, the following pro-
      visions shall apply:

      (i)      Where the agency designated is not an air pollution
              control  agency, such agency shall  consult the appropri-
              ate State or local air pollution control agency prior to
              making any determination required by paragraphs (b) (4),
              (5), or (6) of this section.  Similarly, where the agency
              designated does not have continuing responsibilities for
              land use planning, such agency shall consult with the
              appropriate State or local  land use and transportation
              planning agency prior to making any determination re-
              quired by paragraph (b) (9) of this section.

      (ii)    The Administrator of the Environmental Protection Agency
              shall conduct the indirect source review pursuant to
              this paragraph for any indirect source owned or operated
              by the United States Government.

      (iii)   A copy of the notice required pursuant to paragraph (b)
              (8) (ii) (c) of this section shall be sent to the Admin-
              istrator through the appropriate Regional Office.

(15)   In any area in which a "management of parking supply" regulation
      which has been promulgated by the Administrator is in effect, in-
      direct sources which are subject to review under the terms of such
      a regulation shall not be required to seek review under this para-
      graph but instead shall be required to seek review pursuant to
      such management of parking supply regulation.  For purposes of
      this paragraph, a "management of parking supply" regulation shall
      be any regulation promulgated by the Administrator as part of a
      transportation control plan pursuant to the Clean Air Act which
      requires that any new or modified facility containing a given num-
      ber of parking spaces shall receive a permit or other prior approv-
      al,  issuance of which is to be conditioned on air quality consid-
      erations.

(16)   Notwithstanding any of the foregoing provisions to the contrary,
      the operation of this paragraph is hereby suspended pending fur-
      ther notice.  No facility which commences construction prior to
      the expiration of the sixth month after the operation of this para-
      graph is reinstated (as to that type of facility) shall be subject
      to this paragraph.

      (37 FR 10846, May 31, 1972 as amended at 40 FR 28065, July 3,
       1975;  40 FR 40160, Sept. 2, 1975)
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(9.0)     52.479  Source surveillance.
              (a)   The requirements of §  51.19(d)  of this  chapter  are  not  met
                   because the plan does  not include adequate  procedures for
                   determining emission reductions achieved  from any of the pro-
                   posed transportation control  measures.

              (b)   The requirements of §  51.19(d)  are not  met  with respect to  the
                   strategies  for parking surcharge, car pool  locator, vehicle
                   inspection, express bus lanes,  increased  bus fleet  and  service,
                   elimination of free on-street parking,  and  elimination  of free
                   parking by  employers.

              (c)   Monitoring  transportation trends.

                   (1)  This section is applicable in the  District of  Columbia
                        portion of the National  Capital  Interstate Air Quality
                        Control Region.

                   (2)  In order to assure the effectiveness of the inspection and
                        maintenance program approved in  §  52.472 and the retrofit
                        devices required  pursuant  to §§  52.490, 52.492, 52.494,
                        52.495, and 52.496, the State shall  monitor the actual
                        per vehicle emissions reductions occurring as  a result of
                        such measures.  All data obtained  from such monitoring
                        shall  be included in the quarterly report  submitted to the
                        Administrator by  the State in accordance with  § 51.7 of
                        this chapter.   The first quarterly report  shall cover  the
                        period January 1  to March  31, 1976.

                   (3)  In order to assure the effective implementation of the
                        parking surcharge, car pool  locator, express bus lanes,
                        increased bus fleet and service, elimination of free on-
                        street community  parking and elimination of free parking
                        by employers, the District of Columbia shall monitor
                        vehicle miles traveled and average vehicle speeds  for
                        each area in which such measures are in effect and during
                        such time periods as may be appropriate to evaluate the
                        effectiveness of such a program.  All  data obtained from
                        such monitoring shall be included  in the quarterly report
                        submitted to the  Administrator by  the  District of  Columbia
                        in accordance with § 51.7  of this  chapter.  The first
                        quarterly report  shall cover the period from July  1 to
                        September 30, 1974.  The vehicle miles traveled and vehicle
                        speed  data shall  be collected on a monthly basis and sub-
                        mitted in a format similar to Table  1.

                   (4)  No later than March 1, 1974, the District  of Columbia  shall
                        submit to the Administrator a compliance schedule  to imple-
                        ment this section.  The program description shall  include
                        the following:
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               (i)  The agency or agencies responsible for conducting,
                    overseeing, and maintaining the monitoring program.


                                    TABLE 1
Time period...
Affected area.
                                           VMT or average vehicle speed
       Roadway type
                                       Vehicle type (1) Vehicle type(2)]
Freeway...
Arterial..
Collector.
Local	
    Continue with other vehicle types as appropriate.
              (ii)  The administrative procedures to be used.

             (iii)  A description of the methods to be used to collect the
                    emission data, VMT data, and vehicle speed data; a de-
                    scription of the geographical area to which the data
                    applies; identification of the location at which the
                    data will be collected; and the time periods during
                    which the data will be collected.
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(12.0)    52.488  Control  of evaporative losses from the filling  of vehicular tanks.

              (a)  "Gasoline" means any petroleum distillate having a  Reid vapor
                   pressure of 4 pounds or greater.

              (b)  This section is applicable in the District of Columbia  portion
                   of the National Capital Interstate AQCR.

              (c)  A person shall  not transfer gasoline to  an automotive  fuel  tank
                   from a gasoline dispensing system unless  the  transfer  is made
                   through a fill  nozzle designed to:

                   (1)  Prevent discharge of hydrocarbon vapors  to the atmosphere
                        from either the vehicle filler neck  or dispensing  nozzle;

                   (2)  Direct vapor displaced from the automotive fuel tank to a
                        system wherein at least 90 percent  by weight of the organic
                        compounds  in displaced vapors are recovered; and

                   (3)  Prevent automotive fuel tank overfills or spillage on fill
                        nozzle disconnect.

              (d)  The system referred to in paragraph (c)  of this section may
                   consist of vapor-tight return line from the fill nozzle-filler
                   neck interface to the dispensing tank or to an adsorption,
                   absorption, incineration, refrigeration-condensation system
                   or its equivalent.

              (e)  Components of the systems required by §  52.487 may  be  used for
                   compliance with paragraph (c) of this section.

              (f)  If it is demonstrated to the satisfaction of  the Administrator
                   that it is impractical to comply with the provisions of paragraph
                   (c) of this section as a result of vehicle fill neck configura-
                   tion, location, or other design features of a class of vehicles,
                   the provisions of this section shall not apply to such vehicles.
                   However, in no case shall such configuration  exempt any gasoline
                   dispensing facility from installing and using in the most effective
                   manner a system required by paragraph (c) of  this section.

              (g)  Every owner or operator of a gasoline dispensing system subject
                   to this section shall comply with the following compliance
                   schedule.

                   (1)  January 1, 1975 - Submit to the Administrator  a final control
                        plan, which describes at a minimum the steps which will be
                        taken by the source to achieve compliance with the provisions
                        of paragraph (c) of this section.

                   (2)  March 1, 1975 - Negotiate and sign all necessary  contracts
                        for emission control systems, or issue orders  for the pur-
                        chase of component parts to accomplish emission control.
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          (3)  May 1, 1975 - Initiate on-site construction or installa-
               tion of emission control equipment.

          (4)  May 1, 1977 - Complete on-site construction or installa-
               tion of emission control equipment or process modification.

          (5)  May 31, 1977 - Assure final  compliance with the provisions
               of paragraph (c) of this section.

          (6)  Any owner or operator of sources subject to the compliance
               schedule in this paragraph shall certify to the Administrator,
               within 5 days after the deadline for each increment of pro-
               gress, whether or not the required increment of progress has
               been met.

     (h)  Paragraph (g) of this section shall not apply:

          (1)  To a source which is presently in compliance with the pro-
               visions of paragraph (c) of this section and which has
               certified such compliance to the Administrator by January 1,
               1975.  The Administrator may request whatever supporting
               information he considers necessary for proper certification.

          (2)  To a source for which a compliance schedule is adopted by
               the State and approved by the Administrator.

          (3)  To a source whose owner or operator submits to the Adminis-
               trator, by June 1, 1974, a proposed alternative schedule.
               No such schedule may provide for compliance after May 31,
               1977.  Any such schedule shall provide for certification to
               the Administrator, within 5 days after the deadline for each
               increment therein, as to whether or not that increment has
               been met.  If promulgated by the Administrator, such schedule
               shall satisfy the requirements of this paragraph for the
               affected source.

     (i)  Nothing in this section shall preclude the Administrator from
          promulgating a separate schedule for any source to which the
          application of the compliance schedule in paragraph (g) of this
          section fails to satisfy the requirements of § 51.15(b) and (c)
          of this chapter.

     (j)  Any gasoline dispensing facility subject to this section which
          installs a gasoline dispensing system after the effective date
          of this section shall comply with the requirements of paragraph
          (c) of this section by May 31, 1977, and prior to that date shall
          comply with paragraph (g) of this section as far as possible.
          Any facility subject to this section which installs a gasoline
          dispensing system after May 31, 1977, shall comply with the
          requirements of paragraph (c) of this section at the time of
          installation.

     NOTE:  The compliance dates given in paragraphs (g) (l)-(3) were sus-
pended indefinitely at 40 FR 1127, Jan. 6, 1975.
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(12.0)    52.490  Inspection and maintenance program.

              (a)   Definition:

                   (1)   "Inspection and maintenance program"  means  a  program  for
                        reducing emissions  from in-use vehicles  through  identifying
                        vehicles that need  emission control-related maintenance and
                        requiring that such maintenance be  performed.

                   (2)   "Light-duty vehicle" means  a gasoline-powered motor vehicle
                        rated at 6,000 Ib.  gross vehicle weight  (GVW)  or less.

                   (3)   "Medium-duty vehicle" means a gasoline-powered motor  vehicle
                        rated at more than  6,000 Ib.  GVW and  less than 10,000 Ib.  GVW.

                   (4)   "Heavy-duty vehicle" means  a gasoline-powered motor vehicle
                        rated at 10,000 Ib.  GVW or  more.

                   (5)   All other terms used in this section  that are defined in
                        Part 51, Appendix N, of this chapter  are used herein  with
                        the meanings so defined.

              (b)   This section is applicable within the District of  Columbia portion
                   of the National Capital  Interstate AQCR.

              (c)   In connection with the light duty vehicle  inspection  and mainten-
                   ance program for the District of Columbia  approved by the  Adminis-
                   trator pursuant to § 52.472 the  District shall establish an inspec-
                   tion and maintenance program applicable  to all medium duty and
                   heavy duty vehicles registered in the District that operate on
                   public streets or highways over  which it has  ownership or  control.
                   The District may exempt  any class or category of vehicles  that  the
                   District finds is rarely used on public  streets  or highways (such
                   as classic or antique vehicles).  Under  the program,  the District
                   shall:

                   (1)   Inspect all medium-duty and heavy-duty motor  vehicles at
                        periodic intervals  not more than 1  year apart.

                   (2)   Use inspection failure criteria consistent  emission reduc-
                        tions claimed in the plan for the strategy.

                   (3)   Ensure that failed  vehicles receive the maintenance necessary
                        to achieve compliance with  the inspection standards,  and
                        retest failed vehicles following maintenance.

                   (4)   [Reserved]

                   (5)   Begin the first inspection  cycle by January 1, 1975,  com-
                        pleting it by January 1, 1976.

                   (6)   Designate an agency or agencies responsible for  conducting
                        the inspection and  maintenance program.
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              (d)   After January 1,  1976,  the District shall  not  register or  allow
                   to operate on public streets or highways  any medium-duty or
                   heavy-duty vehicle that does not comply with the  applicable
                   requirements of the program established under  paragraph (c)  of
                   this section.  This shall  not apply to the initial  registration
                   of a new motor vehicle.

              (e)   After January 1,  1976,  no  owner of a medium-duty  or heavy-duty
                   vehicle shall operate or allow the operation of such vehicle that
                   does not comply with the applicable requirements  of the program
                   established under paragraph (c) of this section.  This shall  not
                   apply to the initial registration of a new motor  vehicle.

              (f)   The District shall submit, no later than  February 1, 1974, a
                   detailed compliance schedule showing the  steps it will  take  to
                   establish an inspection and maintenance program pursuant to
                   paragraph (c) of this section.

(12.0)    52.491   Bicycle lanes and bicycle storage facilities.

              (a)   Definitions:

                   (1)  "Bicycle" means a  two-wheel nonmotor powered vehicle.

                   (2)  "Bicycle lane" means  a route for the exclusive use of
                        bicycles, either constructed specifically for  that purpose
                        or converted from an  existing lane.

                   (3)  "Bicycle parking facility" means any storage facility for
                        bicycles, which allows bicycles to be locked securely.

                   (4)  "Parking space" means the area allocated  by  a  parking
                        facility for the temporary storage of one automobile.

                   (5)  "Parking facility" means a lot, garage,  building, or  portion
                        thereof, in or on which motor vehicles are temporarily  parked.

              (b)   This section shall be applicable in the District  of Columbia
                   portion of the National Capital Interstate Air Quality Control
                   Region.

              (c)   On or before July 1, 1976, the District of Columbia shall  establish
                   a network of bicycle lanes linking residential areas with  employ-
                   ment, educational, and commercial centers in  accordance with the
                   following requirements:

                   (1)  The network shall  contain no less than 60 miles of bicycle
                        lanes in addition to  any in existence as  of  November  20, 1973.

                   (2)  Each bicycle lane shall at a minimum:

                        (i)  Be clearly marked by signs indicating that the  lane is
                             for the exclusive use of bicycles (and  pedestrians, if
                             necessary);


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         (ii)   Be separated from motor  vehicle  traffic  by  appropriate
               devices,  such as  physical  barriers,  pylons,  or
               painted lines;

        (iii)   Be regularly maintained  and  repaired;

         (iv)   Be of a hard, smooth  surface suitable  for bicycles;

          (v)   Be at least 5 feet wide  for  one-way  traffic, or 8
               feet wide for two-way traffic;

         (vi)   If in a street used by motor vehicles, be a  minimum of
               8 feet wide whether one-way  or two-way;  and

        (vii)   Be adequately lighted.

     (3)   Off-street bicycle lanes which  are not  reasonably suited for
          commuting to and from  employment, educational, and commercial
          centers shall  not be considered a part  of this network.

     (4)   On or before October 1, 1974, the District  of Columbia  shall
          establish 25 percent of the total mileage of  the  bicycle
          lane network;  on or before June 1, 1975,  50 percent of  the
          total mileage  shall be established; on  or before  July 1,
          1976, 100 percent of the total  mileage  shall  be  established.

(d)   On or before June 1, 1974,  the  District of Columbia shall submit
     to the Administrator a comprehensive study of  a  bicycle lane and
     bicycle path network.  The  study shall include,  but not be
     limited to the following:

     (1)   A bicycle user and potential  user survey, which  shall at a
          minimum determine:

          (i)   For present bicycle riders,  the  origin,  destination,
               frequency, travel time,  and  distance of  bicycle trips;

         (ii)   In high density employment areas,  the  present modes of
               transportation of employees  and  the  potential modes of
               transportation, including  the number of  employees  who
               would convert to  the  bicycle mode  from other modes upon
               completion of the bicycle  lane network described in
               paragraph (c) of  this section.

     (2)   A determination of the feasibility and  location  of on-street
          bicycle lanes.

     (3)   A determination of the feasibility and  location  of off-street
          lanes.

     (4)   A determination of the special  problems related  to feeder
          lanes to bridges, on-bridge lanes, feeder lanes  to METRO
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          and railroad stations,  and feeder lanes to fringe parking
          areas, and the means necessary to include such lanes in
          the bicycle lane network described in paragraph (c)  of
          this section.

     (5)  A determination of the  feasibility and location of various
          methods of safe bicycle parking.

     (6)  The study shall make provision for the receipt of public
          comments on any matter  within the scope of the study,
          including the  location  of the bicycle lane network described
          in paragraph (c) of this section.

(e)  By June 1, 1974, in addition to the comprehensive study required
     pursuant to paragraph (d) of this section, the District of
     Columbia shall submit to the Administrator a detailed compliance
     schedule showing the steps it will take to establish this net-
     work pursuant to paragraphs  (c) and (h) of this section.  The
     compliance schedule shall identify in  detail the names of streets
     that will provide bicycle lanes and the location of any lanes to
     be constructed especially for bicycle  use.  It shall also include
     a statement indicating the source amount,  and adequacy of funds to
     be used in implementing this section,  and  the text of any needed
     statutory proposals and needed regulations which will be proposed
     for adoption.

(f)  On or before October 1, 1974, the District of Columbia shall submit
     to the Administrator legally adopted regulations sufficient to
     implement and enforce all of the requirements of this section.

(g)  On or before May 1, 1974, the District of  Columbia shall  establish
     a pilot bicycle lane from Key Bridge via Pennsylvania Avenue past
     the White House to  the U.S.  Capitol and from the Capitol  along
     Pennsylvania Avenue to Alabama Avenue  SE.

(h)  On or before June 1, 1975, the District of Columbia shall require
     all owners and operators of  parking facilities containing more
     than 50 parking spaces (including both free and commercial  facili-
     ties) within the area specified in paragraph (b) of this section
     to provide spaces for the storage of bicycles in the following
     ratio:  one automobile-sized parking space (with a bicycle
     parking facility) for the storage of bicycles for every 75
     parking spaces for  the storage of autos.  The District shall
     also require that:

     (1)  Bicycle parking facilities shall  be so located as to be safe
          from motor vehicle traffic and secure from theft.  They
          shall be properly repaired and maintained.

     (2)  The METRO Subway System shall provide a sufficient number
          of safe and secure bicycle parking facilities at each
          station to meet the needs of its  riders.
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                   (3)   All  parking facilities owned,  operated,  or leased by the
                        Federal  Government shall  be subject to this paragraph.

                   (4)   Any  owner or operator of a parking  facility which charges
                        a fee for the storage of motor vehicles  shall  store bicycles
                        at a price per unit per hour which  is  no greater in relation
                        to the cost of storing them than is the  price  of parking for
                        a motor vehicle in relation to the  cost  of storing it.
                        Unless the owner or operator makes  an  affirmative showing  to
                        the  District of Columbia of different  facts, and agrees to
                        charge in conformity with that showing,  the ratio in costs
                        and  prices shall be determined by the  maximum  number of
                        bicycles that can be stored in a single  standard-sized
                        automobile parking space.

                        [38  FR 33713, December 6,  1973]

(12.0)    52.492  Medium duty air/fuel control retrofit.

              (a)  Definitions:

                   (1)   "Air/fuel Control Retrofit" means a system or  device (such
                        as modification to the engine's carburetor or  positive
                        crankcase ventilation system)  that  results in  engine
                        operation at an increased air/fuel  ratio so as to achieve
                        reduction in exhaust emissions of hydrocarbon  and carbon
                        monoxide from 1973 and earlier medium-duty vehicles of  at
                        least 15 and 30 percent, respectively.

                   (2)   "Medium-duty vehicle" means a  gasoline powered motor vehicle
                        rated at more than 6,000 Ib. GVW and less than 10,000 Ib.  GVW.

                   (3)   All  other terms used in this section that are  defined in
                        Part 51, Appendix N, of this chapter are used  herein with
                        meanings so defined.

              (b)  This section is applicable within the District of Columbia portion
                   of the National Capital Interstate  AQCR.

              (c)  The  District of Columbia shall  establish a  retrofit program  to
                   ensure that on or before May 31, 1976, all  medium-duty vehicles
                   of model  years prior to 1973 which  are not  required to be retro-
                   fitted with an oxidizing catalyst or other  approved device pur-
                   suant to  § 52.495 which are registered in the area  specified in
                   paragraph (b) of this section are equipped  with an  appropriate
                   air/fuel  control device or other device  as  approved by the Adminis-
                   trator that will reduce exhaust emissions of hydrocarbons and
                   carbon monoxide to the same extent  as an air/fuel control device.
                   No later  than February 1, 1974, the District of Columbia shall
                   submit to the Administrator a detailed compliance schedule showing
                   the  steps it will take to establish and  enforce a retrofit program
                   pursuant  to this section.  The compliance schedule  shall include a
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     date by which the District shall  evaluate and approve devices
     for use in this program.   Such date shall be no later than
     September 30, 1974.

(d)  No later than April  1, 1974,  the  District shall  submit legally
     adopted regulations  to the Administrator establishing such  a
     program.  The regulations shall  include:

     (1)  Designation of  an agency responsible for evaluating and
          approving devices for use on vehicles subject to this
          section.

     (2)  Designation of  an agency responsible for ensuring that the
          provisions of paragraph  (d)  (3) of this section are enforced.

     (3)  Provisions for  beginning the installation of the retrofit
          devices by August 1, 1975, and completing the installation
          of the devices  on all vehicles subject to this section no
          later than May  31, 1976.

     (4)  A provision that no  later than May 31, 1976, no vehicle for
          which retrofit  is required under this section shall pass
          the annual emission  tests provided for by § 52.490 unless
          it has been first equipped with an approved air/fuel control
          device, or other device  approved pursuant to this section,
          which the test  has shown to  be installed and operating cor-
          rectly.  The regulations shall include test procedures and
          failure criteria for implementing this provision.

     (5)  Methods and procedures for ensuring that those installing
          the retrofit devices have the training and ability to  perform
          the needed tasks satisfactorily and have an adequate supply
          of retrofit components.

     (6)  Provision (apart from the requirements of any general  program
          for periodic inspection  and  maintenance of vehicles) for
          emission testing at  the  time of device installation or some
          other positive  assurance that the device is installed  and
          operating correctly.

(e)  After May 31, 1976,  the District  shall not register or allow to
     operate on its streets or highways any vehicle that does not comply
     with the applicable  standards and procedures adopted pursuant  to
     paragraph (d) of this section.

(f)  After May 31, 1976,  no owner  of a vehicle subject to this section
     shall operate or allow the operation of any such vehicle that
     does not comply with the  applicable standards and procedures
     implemented by this  section.

(g)  The District may exempt any class or category of vehicles from
     this section which the District finds is rarely used on public
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                   streets  and highways (such as  classic  or antique  vehicles)  or
                   for which the District demonstrates  to the  Administrator that
                   air/fuel  control  devices or other devices approved  pursuant to
                   this section are  not commercially available.

(12.0)    52.493  Management of parking supply.

              (a)  Definitions:

                        All  terms used in this section  but not specifically defined
                   below shall have  the meaning given them in  Part 51  of this
                   Chapter  and this  Part 52.

                   (1)  "Parking facility" (also called "facility")  means a lot,
                        garage, building or structure,  or combination  or portion
                        thereof, in  or on which motor vehicles are temporarily
                        parked.

                   (2)  "Vehicle trip" means a single movement by a  motor vehicle
                        that originates or terminates at  a parking facility.

                   (3)  "Construction" means fabrication, erection,  or installation
                        of  a parking facility, or any conversion of  land, a building
                        or  structure, or portion thereof, for  use as a facility.

                   (4)  "Modification" means any change to a parking facility  that
                        increases or may increase the motor vehicle  capacity of or
                        the motor vehicle activity associated  with such parking
                        facility.

                   (5)  "Commence" means to undertake a continuous program of  onsite.
                        construction or modification.

              (b)  This regulation is applicable in the District of  Columbia.

              (c)  The requirements  of this section are applicable to  the following
                   parking  facilities in the areas specified in paragraph (b)  of
                   this section, the construction or modification of which is  com-
                   menced after January 1, 1975.

                   (1)  Any new parking facility with parking  capacity for 250 or
                        more motor vehicles;

                   (2)  Any parking  facility that will  be modified to  increase parking
                        capacity by  250 or more motor vehicles; and

                   (3)  Any parking  facility constructed  or modified in increments
                        which individually are not subject to  review under this
                        section, but which, when all such increments occurring
                        since January 1, 1975, are added  together, as  a total  would
                        subject the  facility to review  under this section.
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(d)   No person shall  commence construction or modification of any
     facility subject to this section without first obtaining written
     approval from the Administrator or an agency designated by him;
     provided, that this paragraph shall  not apply to any proposed
     construction or modification for which a general  construction
     contract was finally executed by all  appropriate parties on or
     before January 1, 1975.

(e)   No approval  to construct or modify a  facility shall  be granted
     unless the applicant shows to the satisfaction of the Administrator
     or agency approved by him that:

     (1)  The design or operation of the facility will not cause a
          violation of the control strategy which is part of the
          applicable implementation plan,  and will be consistent
          with the plan's VMT reduction goals.

     (2)  The emissions resulting from the design or operation of the
          facility will not prevent or interfere with the attainment
          or maintenance of any national  ambient air quality standard
          at any time within 10 years from the date of application.

(f)   All applications for approval under this section shall include
     the following information:

     (1)  Name and address of the applicant.

     (2)  Location and description of the parking facility.

     (3)  A proposed construction schedule.

     (4)  The normal  hours of operation of the facility and the
          enterprises and activities which it serves.

     (5)  The total motor vehicle capacity before and after the con-
          struction or modification of the facility.

     (6)  The number of people using or engaging in any enterprises
          or activities that the facility will serve on a daily basis
          and a peak hour basis.

     (7)  A projection of the geographic areas in the community from
          which people and motor vehicles will be drawn to the
          facility.  Such projection shall include data concerning
          the availability of mass transit from such areas.

     (8)  An estimate of the average and peak hour vehicle trip
          generation rates, before and after construction or modifi-
          cation of the facility.

     (9)  An estimate of the effect of the facility on traffic pattern
          and flow.
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                  (10)   An estimate of the effect of the facility on total  VMT for
                        the air quality control  region.

                  (11)   An analysis of the effect of the facility on site and
                        regional  air quality, including  a showing that the facility
                        will  be compatible with  the applicable implementation plan,
                        and that the facility will  not cause any national air
                        quality standard to be exceeded  within 10 years from date
                        of application.  The Administrator may prescribe a stan-
                        dardized screening technique to  be used in analyzing the
                        effect of the facility on ambient air quality.

                  (12)   Additional  information,  plans, specifications, or documents
                        required by the Administrator.

              (g)  Each application shall be signed by the owner or operator of the
                   facility,  whose signature shall  constitute an agreement that the
                   facility shall be operated in accordance with the design sub-
                   mitted in  the application and with applicable rules, regulations,
                   and  permit conditions.

              (h)  Within 30  days after receipt  of an application, the Administrator
                   or agency  approved by him shall  notify the public, by prominent
                   advertisement in the Region affected, of the receipt of the
                   application and the proposed  action on it (whether approval,
                   conditional approval, or denial), and shall invite public comment.

                   (1)   The application, all submitted information, and the terms
                        of the proposed action shall be  made available to the public
                        in a  readily accessible  place within the affected air quality
                        region.

                   (2)   Public comments submitted within 30 days of the date such
                        information is made available shall be considered in making
                        the final decision on the application.

                   (3)   The Administrator or agency approved by him shall take final
                        action (approval, conditional approval, or denial) on an
                        application within 30 days after close of the public comment
                        period.

              NOTE:   The provisions of § 52.493  were suspended indefinitely at 40
         FR 29714, July 15, 1975.

(12.0)    52.494  Heavy  duty air/fuel control retrofit.

              (a)  Definitions:

                   (1)   "Air/Fuel Control Retrofit" means a system or device (such
                        as modification to the engine's  carburetor or positive crank-
                        case  ventilation system) that results in engine operation
                        at an increased air/fuel ratio so as to achieve reduction
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          in exhaust emissions of hydrocarbon  and carbon  monoxide
          from heavy-duty vehicles of at least 30 and  40  percent,
          respectively.

     (2)   "Heavy-duty vehicle" means a gasoline-powered motor vehicle
          rated at 10,000 Ib.  gross vehicle weight (GVW)  or more.

     (3)   All  other terms used in this section that are defined  in
          Part 51, Appendix N, of this chapter are used herein with
          meanings so defined.

(b)  This section is applicable within the District of Columbia  por-
     tion of the National Capital Interstate AQCR.

(c)  The  District of Columbia  shall establish  a retrofit  program to
     ensure that on or before  May 31, 1977, all heavy-duty vehicles
     registered in the area specified in paragraph (b) of this section
     are  equipped with an appropriate air/fuel control device, or
     other device as approved  by the Administrator that will  reduce
     exhaust emissions of hydrocarbons and carbon monoxide to the
     same extent as an air/fuel control  device.  No later than April  1,
     1974, the District of Columbia shall  submit to the Administrator
     a detailed compliance schedule showing the steps  it  will  take
     to establish and enforce  a retrofit program pursuant to this
     section.   The compliance  schedule shall include a date by which
     the  District shall  evaluate and approve devices for  use in  this
     program.   Such date shall be no later than January 1, 1975.

(d)  No later than September 1, 1974, the District shall  submit  legally
     adopted regulations to the Administrator  establishing such  a
     program.   The regulations shall include:

     (1)   Designation of an agency responsible for evaluating and
          approving devices for use on vehicles subject to this  section.

     (2)   Designation of an agency responsible for ensuring that the
          provisions of paragraph (d) (3) of this section are enforced.

     (3)   Provisions for beginning the installation of the retrofit
          devices by January 1, 1976, and completing the  installation
          of the devices on all vehicles subject to this  section no
          later than May 31, 1977.

     (4)   A provision that starting no later than May  31, 1977,  no
          vehicle for which retrofit is required under this section
          shall pass the annual emission tests provided for by § 52.490
          unless it has been first equipped with an approved air/fuel
          control device, or other device approved pursuant to this
          section, which the test has shown to be installed and  operating
          correctly.  The regulations shall include test  procedures  and
          failure criteria for implementing this provision.
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                   (5)  Methods and procedures for ensuring that  those  installing
                        the retrofit devices have the training  and  ability  to  pert
                        form the needed tasks satisfactorily and  have an  adequate
                        supply of retrofit components.

                   (6)  Provision (apart from the requirements  of any general  program
                        for periodic inspection and maintenance of  vehicles) for
                        emissions testing at the time of device installation or
                        some other positive assurance that the  device is  installed
                        and operating correctly.

              (e)   After May 31, 1977, the District shall  not register  or allow to
                   operate on its streets or highways any vehicle that  does not
                   comply with the applicable standards  and procedures  adopted pur-
                   suant to paragraph (d) of this section.

              (f)   After May 31, 1977, no owner of a vehicle subject to this section
                   shall operate or allow the operation  of any  such vehicle that
                   does not comply with the applicable standards  and procedures
                   implementing this section.

              (g)   The District may exempt any class or  category  of vehicles from
                   this section which the District finds is rarely  used on  public
                   streets and highways (such as classic or antique vehicles)  or
                   for which the District demonstrates to the Administrator that
                   air/fuel control or other devices approved pursuant  to this
                   section are not commercially available.

(12.0)    52.495  Oxidizing catalyst retrofit.

              (a)   Definitions:

                   (1)  "Oxidizing catalyst" means a device that  uses a catalyst
                        installed in the exhaust system  of a vehicle (and if necessary
                        includes an air pump) so as to achieve  a  reduction  in  exhaust
                        emissions of hydrocarbon and carbon monoxide of at  least 50
                        and 50 percent, respectively, from light-duty vehicles of
                        1971 through 1975 model years, and of at  least  50 and  50
                        percent respectively, from medium duty  vehicles of  1971
                        through 1975 model years.

                   (2)  "Light-duty vehicle" means a gasoline-powered motor vehicle
                        rated at 6,000 Ib. gross vehicle weight (GVW) or  less.

                   (3)  "Medium-duty vehicle" means a gasoline-powered  motor vehicle
                        rated at more than 6,000 Ib. GVW and less than  10,000  Ib.  GVW.

                   (4)  "Fleet vehicle" means any of 5 or more  light-duty vehicles
                        operated by the same person(s),  business, or governmental
                        entity and used principally in connection with  the  same or
                        related occupations or uses.  This definition shall also
                        include any taxicab (or other light-duty  vehicle-for-hire)
                        owned by any individual or business.
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     (5)   All  other terms used in this  section  that  are  defined  in
          Part 51,  Appendix N, are used herein  with  meanings  so
          defined.

(b)  This section is applicable within  the District  of Columbia  portion
     of the National Capital  Interstate AQCR.

(c)  The District of Columbia shall  establish a retrofit program to
     ensure that on or before May 31, 1977,  all  light-duty  fleet
     vehicles  of model years  1971 through 1975  and all medium-duty
     vehicles  of model years  1971 through 1975  which are registered
     in the area specified in paragraph (b)  of  this  section and  are
     able to operate on 91 RON gasoline  are equipped  with an appropriate
     oxidizing catalyst retrofit device or other device, as approved  by
     the Administrator, that  will reduce exhaust emissions  of hydro-
     carbon and carbon monoxide to the  same  extent as an oxidizing
     catalyst  retrofit device.  No later than April  1, 1974,  the
     District  of Columbia shall submit  to the Administrator a
     detailed  compliance schedule showing the steps  it will take to
     establish and  enforce a  retrofit program pursuant to this section.
     The compliance schedule  shall include a date by which  the District
     shall  evaluate and approve devices for  use in this  program.
     Such date shall be no later than January 1, 1975.

(d)  No later  than  September  1, 1974, the District shall submit
     legally adopted regulations to the Administrator establishing
     such a program.

     The regulations shall  include:

     (1)   Designation of an agency responsible  for evaluating and
          approving devices for use on  vehicles subject  to  this  section.

     (2)   Designation of an agency responsible  for ensuring that the
          provisions of paragraph (d)  (3) of this section are enforced.

     (3)   Provisions for beginning the  installation  of the  retrofit
          devices by January  1, 1976, and completing the installation
          of the devices on all vehicles subject to  this section no
          later than May 31,  1977.

     (4)   A provision that starting no  later than May 31, 1977,  no
          vehicle for which retrofit is required under this section
          shall pass the annual emission tests  provided  for by
          §§ 52.472 and 52.490 unless  it has been first  equipped with
          an approved oxidizing catalyst device, or  other device
          approved pursuant to this section, which the test has
          shown to  be installed and operating correctly. The regula-
          tions shall include test procedures and failure criteria
          for  implementing this provision.

     (5)   Methods and procedures for ensuring that those installing
          the  retrofit devices have the training and ability  to
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                        perform the needed tasks  satisfactorily  and  have  an
                        adequate supply of retrofit components.

                   (6)   Provision (apart from the requirements of  any  general
                        program for periodic inspection  and maintenance of vehicles)
                        for emissions testing at  the time  of device  installation
                        or some other positive assurance that the  device  is
                        installed and operating correctly.

              (e)  After May 31, 1977, the District shall  not register or allow to
                   operate on its streets or highways any  vehicle  that does  not
                   comply with the applicable standards  and procedures adopted
                   pursuant to paragraph (d) of this section.

              (f)  After May 31, 1977, no owner of a vehicle subject to this
                   section shall operate or allow the operation  of any such  vehicle
                   that does not comply with the  applicable standards  and procedures
                   implementing this section.

              (g)  Any  vehicle which is manufactured equipped with an  oxidizing
                   catalyst, or which is certified to meet the original 1975 duty
                   vehicle emissions standards set forth in section  202(b)(l)(a)
                   of the Clean Air Act of 1970 (without regard  to any suspension
                   of such standards), shall be exempt from the  requirements of
                   this section.

(12.0)   52.496   Vacuum spark advance disconnect retrofit.

              (a)  Definitions:

                   (1)   "Vacuum spark advance disconnect retrofit" means  a device or
                        system installed on a motor vehicle that prevents the ignition
                        vacuum advance from operating either when  the  vehicle's
                        transmission is in the lower gears, or when  the vehicle is
                        traveling below a predetermined  speed, so  as to achieve
                        reduction in exhaust emissions of  hydrocarbon  and carbon
                        monoxide from 1967 and earlier light-duty  vehicles of at
                        least 25 and 9 percent, respectively.

                   (2)   "Light-duty vehicle" means a gasoline-powered  motor  vehicle
                        rated at 6,000 Ib. gross  weight  (GVW) or less.

                   (3)   All other terms used in this section that  are  defined in
                        Part 51, Appendix N, are  used herein with  meanings so
                        defined.

              (b)  This section is applicable within the District  of Columbia portion
                   of the National Capital Interstate AQCR.

              (c)  The  District of Columbia shall establish a retrofit program to
                   ensure that on or before January 1, 1976, all light-duty  vehicles
                   of model years prior to 1968 registered in the  area specified  in
                   paragraph (b) of this section  are equipped with an  appropriate
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     vacuum spark advance disconnect retrofit.   No later than
     February 1,  1974,  the District shall  submit to the Administrator
     a detailed compliance schedule showing the  steps  it will  take  to
     establish and enforce a retrofit program pursuant to this section.
     The compliance schedule shall  include a date by which the District
     shall  evaluate and approve devices for use  in this program.
     Such date shall  be no later than September  30, 1974.

(d)  No later than April  1, 1974, the District shall submit legally
     adopted regulations  to the Administrator establishing such a
     program.   The regulations shall include:

     (1)  Designation of an agency responsible for evaluating  and
          approving devices for use on vehicles  subject to this section.

     (2)  Designation of an agency responsible for ensuring that the
          provisions  of paragraph (d) (3)  of this section are  enforced.

     (3)  Provisions  for beginning the installation of the retrofit
          devices by  January 1, 1975, and  completing the installation
          of the devices  on all vehicles subject to this section no
          later than  January 1, 1976.

     (4)  A provision that starting no later than January 1, 1976,
          no vehicle  for which retrofit is required under this section
          shall pass  the  annual emission tests provided for by § 52.472
          unless it has been first equipped with an approved vacuum
          spark advance disconnect retrofit device, or other device
          approved pursuant to this section, which the test has shown
          to be installed and operating correctly.  The regulations
          shall include test procedures and failure criteria for
          implementing this provision.

     (5)  Methods and procedures for ensuring that those installing
          the retrofit devices have the training and ability to perform
          the needed  tasks satisfactorily and have an  adequate supply
          of retrofit components.

     (6)  Provision (apart from the requirements of any general program
          for periodic inspection and maintenance of vehicles) for
          emissions testing at the time of device installation, or
          some other  positive assurance that the device is installed
          and operating correctly.

(e)  After January 1, 1976, the District shall not register or allow
     to operate on its streets or highways any light-duty vehicle that
     does not comply  with the applicable standards and procedures
     adopted pursuant to  paragraph (d) of this section.

(f)  After January 1, 1976, no owner of a  vehicle subject to this
     section shall operate or allow the operation of any such  vehicle
     that does not comply with the applicable standards and procedures
     implementing this section.
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(g)   The District may exempt any class or category of vehicles  from
     this section which the District finds is  rarely  used on  public
     streets and highways (such as classic or  antique vehicles)  or
     for which the State demonstrates to the Administrator that
     vacuum spark advance disconnect devices or other devices
     approved pursuant to this section are not commercially available.
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(17.0)   52.499    Prevention of Significant Deterioration

           (b)  Definitions.  For the purposes of this section:

                (1)  "Facility" means an identifiable piece of process equipment.  A
                     stationary source is composed of one or more pollutant-emitting
                     facilities.

                (2)  The phrase "Administrator" means the Administrator of the Envi-
                     ronmental Protection Agency or his designated representative.

                (3)  The phrase "Federal Land Manager" means the head, or his desig-
                     nated representative, of any Department or Agency of the Fed-
                     eral Government which administers federally-owned land, includ-
                     ing public domain lands.

                (4)  The phrase "Indian Reservation" means any federally-recognized
                     reservation established by Treaty, Agreement, Executive Order,
                     or Act of Congress.

                (5)  The phrase "Indian Governing Body" means the governing body of
                     any tribe, band, or group of Indians subject to the jurisdiction
                     of the United States and recognized by the United States as pos-
                     sessing power of self-government.

                (6)  "Construction" means fabrication, erection or installation of a
                     stationary source.

                (7)  "Commenced" means that an owner or operator has undertaken a
                     continuous program of construction or modification or that an
                     owner or operator.has entered into a contractual obligation to
                     undertake and complete, within a reasonable time, a continuous
                     program of construction or modification.

           (c)  Area designation and deterioration increment

                (1)  The provisions of this paragraph have been incorporated by ref-
                     erence into the applicable implementation plans for various
                     States, as provided in Subparts B through ODD of this part.  Where
                     this paragraph is so incorporated, the provisions shall also be
                     applicable to all lands owned by the Federal Government and In-
                     dian Reservations located in such State.  The provisions of this
                     paragraph do not apply in those counties or other functionally
                     equivalent areas that pervasively exceeded any national ambient
                     air quality standards during 1974 for sulfur dioxide or particu-
                     late matter and then only with respect to such pollutants.
                     States may notify the Administrator at any time of those areas
                     which  exceeded the national standards during 1974 and therefore
                     are exempt from the requirements of this paragraph.
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(2)   (i)      For purposes  of this  paragraph,  areas  designated  as  Class
             I or II  shall  be limited to  the  following increases  in
             pollutant concentration occurring since  January 1, 1975:

             	Area Designations	

                  Pollutant                      Class I       Class  II
                                                 (ug/m3)       (ug/m3)
             Particulate matter:
               Annual  geometric mean 	        5             10
               24-hr maximum	       10             30

             Sulfur dioxide:
               Annual  arithmetic  mean 	        2             15
               24-hr maximum	        5            100
                3-hr maximum 	       25            700
     (ii)    For purposes of this paragraph, areas designated as  Class
             III shall be limited to Concentrations'of parti cul ate
             matter and sulfur dioxide no greater than the national
             ambient air quality standards.

     (iii)   The air quality impact of sources granted approval  to
             construct or modify prior to January 1, 1975 (pursuant to
             the approved new source review procedures in the plan)
             but not yet operating prior to January 1, 1975,  shall not
             be counted against the air quality increments specified
             in paragraph (c) (2) (i) of this section.

(3)  (i)     All areas are designated Class II as of the effective
             date of this paragraph.  Redesignation may be proposed by
             the respective States, Federal  Land Manager, or Indian
             Governing Bodies, as provided below, subject to approval
             by the Administrator.

     (ii)    The State may submit to the Administrator a proposal to
             redesignate areas of the State Class I, Class II, or
             Class III, provided that:

             (a)  At least one public hearing is held in or near the
                  area affected and this public hearing is held in
                  accordance with procedures established in 51.4 of
                  this chapter, and

             (b)  Other States, Indian Governing Bodies, and Federal
                  Land Managers whose lands may be affected by the
                  proposed redesignation are notified at least 30 days
                  prior to the public hearing, and
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        (c)   A discussion  of the  reasons  for the  proposed  redes-
             ignation  is available  for public inspection at  least
             30 days prior to the hearing and the notice announc-
             ing the hearing contains  appropriate notification  of
             the availability of  such  discussion, and

        (d)   The proposed  redesignation is based  on  the record  of
             the State's hearing, which must reflect the basis
             for the proposed redesignation, including consider-
             ation of  (1)   growth anticipated in  the area,  (2)
             the social, environmental, and economic effects of
             such redesignation upon the area being  proposed for
             redesignation and upon other areas and  States,  and
             (3)  any  impacts of  such  proposed redesignation upon
             regional  or national interests.

        (e)   The redesignation is proposed after  consultation
             with the  elected leadership of local and  other  sub-
             state general purpose  governments in the  area cov-
             ered by the proposed redesignation.

(iii)    Except as provided in paragraph (c) (3)  (iv) of this
        section, a State in which lands owned by  the Federal Gov-
        ernment are located may submit to the Administrator  a
        proposal to redesignate such lands Class  I,  Class  II, or
        Class III in accordance with subdivision  (ii)  of this
        subparagraph  provided that:

        (a)   The redesignation is consistent with adjacent State
             and privately owned  land, and

        (b)   Such redesignation is  proposed after consultation
             with the  Federal Land  Manager.

(iv)    Notwithstanding subdivision (iii) of this subparagraph,
        the Federal Land Manager may submit to the Administrator
        a proposal to  redesignate any  Federal lands  to a more
        restrictive designation than would otherwise be applic-
        able provided  that:

        (a)   The Federal  Land Manager  follows procedures equiv-
             alent to  those required of States under paragraph
             (c) (3)  (ii)  and,

        (b)   Such redesignation is  proposed after consultation
             with the  State(s) in which the Federal  Land  is  lo-
             cated or which border the Federal Land.

(v)     Nothing in this section is  intended to convey  authority
        to the States  over Indian Reservations where States  hava
        not assumed such  authority  under other laws nor is it
        intended to deny  jurisdiction  which States have  assumed
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        under other laws.   Where  a  State  has  not assumed  juris-
        diction  over an Indian  Reservation  the  appropriate In-
        dian  Governing Body may submit to the Administrator a
        proposal  to'redesignate areas  Class I,  Class  II,  or
        Class III,  provided that:

        (a)   The Indian Governing Body follows  procedures equiv-
             alent  to those required of States  under  paragraph
             (c)  (3) (ii)  and,

        (b)   Such redesignation is  proposed after consultation
             with the State(s)  in which the Indian Reservation
             is  located or which  border the Indian Reservation
             and, for those lands held in trust, with the approv-
             al  of  the Secretary  of the Interior.

(vi)     The  Administrator shall approve,  within 90 days,  any re-
        designation proposed pursuant  to this subparagraph as
        follows:

        (a)   Any redesignation  proposed pursuant to subdivisions
             (ii) and (iii) of  this subparagraph shall be approv-
             ed  unless the Administrator determines (1)  that the
             requirements of subdivisions (ii)  and (iii)  of this
             subparagraph have  not  been complied with, (2)  that
             the State has arbitrarily and capriciously disre-
             garded relevant considerations set forth in  sub-
             paragraph (3) (ii) (d) of this paragraph, or (3)
             that the State has not requested and received dele-
             gation of responsibility  for carrying out the new
             source review requirements of paragraphs (d) and (e)
             of this section.

        (b)   Any redesignation  proposed pursuant to subdivision
             (iv) of this subparagraph shall  be approved  unless
             he  determines (1)   that the requirements of subdivi-
             sion (iv) of this  subparagraph have not been complied
             with,  or (2)  that the Federal Land Manager has arbi-
             trarily and capriciously disregarded relevant con-
             siderations set forth  in subparagraph (3) (ii) (d) of
             this paragraph.

        (c)   Any redesignation  submitted pursuant to subdivision
             (v) of this subparagraph shall be approved unless he
             determines (1)  that the requirements of subdivision
             (v) of this subparagraph have not been complied with,
             or  (2)  that the  Indian Governing Body has arbitrar-
             ily and capriciously disregarded relevant consider-
             ations set forth  in subparagraph (3) (ii) (d) of this
             paragraph.
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                  (d)  Any  redesignation  proposed  pursuant  to  this  para-
                      graph  shall  be approved  only  after the  Administrator
                      has  solicited written  comments  from  affected Federal
                      agencies and Indian  Governing Bodies and  from the
                      public on  the proposal.

                  (e)  Any  proposed redesignation  protested to the  propos-
                      ing  State, Indian  Governing Body, or Federal  Land
                      Manager and to the Administrator by  another  State  or
                      Indian Governing Body  because of the effects upon
                      such protesting State  or Indian Reservation  shall  be
                      approved by the Administrator only if he  determines
                      that in his judgment the redesignation  appropriately
                      balances considerations  of  growth anticipated in the
                      area proposed to be  redesignated;  the  social, envi-
                      ronmental  and economic effects  of such  redesignation
                      upon the area being  redesignated and upon other areas
                      and  States;  and any impacts  upon regional or nation-
                      al interests.

                  (f)  The  requirements of  paragraph (c) (3) (vi)  (a) (3)
                      that a State request and receive delegation  of the
                      new  source review  requirements  of this  section as  a
                      condition  to approval  of a  proposed  redesignation,
                      shall  include as a minimum  receiving the  administra-
                      tive and technical functions  of the  new source re-
                      view.   The Administrator will carry  out any  required
                      enforcement action in  cases where the State  does not
                      have adequate legal  authority to initiate such ac-
                      tions. The Administrator may waive  the requirements
                      of paragraph (c)  (3) (vi) (a) (3) if the  State Attor-
                      ney-General has determined  that the  State cannot ac-
                      cept delegation of the administrative/technical func-
                      tions.

          (vii)    If the Administrator disapproves any proposed  area desig-
                  nation under this subparagraph,  the  State, Federal Land
                  Manager or  Indian Governing Body,  as appropriate, may re-
                  submit the  proposal after correcting the  deficiencies
                  noted  by  the Administrator  or reconsidering  any area des-
                  ignation  determined by  the  Administrator  to  be arbitrary
                  and capricious.

(d)   Review of new sources

     (1)   The provisions of this  paragraph  have been incorporated by refer-
          ence into the  applicable implementation  plans for various States,
          as provided in Subparts 8 through ODD of this part.  Where this
          paragraph is so incorporated,  the requirements of this paragraph
          apply to any new  or modified stationary  source of the  type iden-
          tified below which  has  not commenced  construction or modification
          prior to June  1,  1975  except as specifically provided  below. A
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    source which is modified, but does not increase the amount of
    sulfur oxides or particulate matter emitted, or is modified to
    utilize an alternative fuel, or higher sulfur content fuel, shall
    not be subject to this paragraph.
    (i)     Fossil-Fuel Steam Electric Plants of more than 1000 mil-
            lion B.T.U. per hour heat input.
    (ii)    Coal Cleaning Plants.
    (iii)   Kraft Pulp Mills.
    (iv)    Portland Cement Plants.
    (v)     Primary Zinc Smelters.
    (vi)    Iron and Steel Mills.
    (vii)   Primary Aluminum Ore Reduction Plants.
    (viii)  Primary Copper Smelters.
    (ix)    Municipal Incinerators capable of charging more than 250
            tons of refuse per  24 hour day.
    (x)     Sulfuric Acid Plants.
    (xi)    Petroleum Refineries.
    (xii)   Lime Plants.
    (xiii)  Phosphate Rock Processing Plants.
    (xiv)   By-Product Coke Oven Batteries.
    (xv)    Sulfur Recovery Plants.
    (xvi)   Carbon Black Plants (furnace  process).
    (xvii)  Primary Lead Smelters.
    (xviii) Fuel Conversion Plants.
    (xix)   Ferroalloy production facilities commencing construction
            after October 5, 1975.
(2)  No owner  or operator shall  commence  construction  or modification
    of a  source subject to this paragraph unless  the  Administrator  de-
    termines  that, on the basis of  information  submitted  pursuant to
    subparagraph  (3) of this paragraph:
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     (i)     The effect on air quality concentration of the source or
            modified source, in conjunction with the effects of growth
            and reduction in emissions after January 1, 1975, of other
            sources in the area affected by the proposed source, will
            not violate  the air quality increments applicable in the
            area where the source will be located nor the air quality
            increments applicable in any other areas.  The analysis of
            emissions growth and reduction after January 1, 1975, of
            other  sources in the areas affected by the proposed source
            shall  include all new and modified sources granted approv-
            al to  construct pursuant to this paragraph;  reduction in
            emissions from existing sources which contributed to air
            quality during all or part of 1974;  and general commer-
            cial,  residential, industrial, and other sources of emis-
            sions  growth not exempted by paragraph (c) (2) (111) of
            this section which has occurred since January 1, 1975.

     (ii)    The new or modified source will meet an emission limit,
            to be  specified by the Administrator as a condition to
            approval, which represents that level of emission reduc-
            tion which would be achieved by the application of best
            available control technology, as defined in 52.01 (f),
            for particulate matter and sulfur dioxide.  If the Admin-
            istrator determines that technological or economic limi-
            tations on the application of measurement methodology to
            a particular class of sources would make the imposition
            of an  emission standard infeasible, he may instead pre-
            scribe a design or equipment standard requiring the appli-
            cation of best available control technology.  Such standard
            shall  to the degree possible set forth the emission re-
            ductions achievable by implementation of such design or
            equipment, and shall provide for compliance by means which
            achieve equivalent results.

     (iii)   With respect to modified sources, the requirements of sub-
            paragraph  (2)  (ii) of this paragraph shall be applicable
            only to the  facility or facilities from which emissions
            are  increased.

(3)  In making the  determinations required by paragraph (d) (2) of this
     section,  the Administrator shall, as a minimum, require the owner
     or operator of the source subject to this paragraph to submit:
     site information,  plans, description, specifications, and drawings
     showing the  design of the source;  information necessary to de-
     termine the  impact that the construction or modification will have
     on sulfur dioxide  and  particulate matter air quality levels;  anJ
     any other information necessary to determine that best available
     control technology will be applied.  Upon request of the Adminis-
     trator, the  owner  or operator of the source shall provide informa-
     tion on the  nature and extent of general commercial, residential,
     industrial,  and other  growth which has occurred in the area af-
     fected by the  source's emissions  (such area to be specified by  the
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         Administrator) since January 1, 1975.

     (4)  (i)     Where a new or modified source is located on Federal
                 Lands, such source shall be subject to the procedures
                 set forth  in paragraphs (d) and  (e) of this section.
                 Such procedures shall be in addition to applicable pro-
                 cedures conducted by the Federal Land Manager for admin-
                 istration  and protection of the  affected Federal Lands.
                 Where feasible, the Administrator will coordinate his
                 review and hearings with the Federal Land Manager to
                 avoid duplicate administrative procedures.

         (ii)    New or modified sources which are located on Indian
                 Reservations shall be subject to procedures set forth  in
                 paragraphs (d) and (e) of this section.  Such procedures
                 shall be administered by the Administrator in cooperation
                 with the Secretary of the Interior with respect to lands
                 over which the State has not assumed jurisdiction under
                 other laws.

         (iii)   Whenever any new or modified source is subject to action
                 by a Federal Agency which might  necessitate preparation
                 of an environmental impact statement pursuant to the
                 National Environmental Policy Act (42 U.S.C. 4321), re-
                 view by the Administrator conducted pursuant to this
                 paragraph  shall be coordinated with the broad environmen-
                 tal reviews under that Act, to the maximum extent feas-
                 ible and reasonable.

     (5)  Where  an  owner or  operator has applied for permission to con-
         struct or modify pursuant to this paragraph and the proposed
         source would be located in an area which has been proposed  for
         redesignation to a more stringent class  (or the State,  Indian
         Governing Body, or Federal Land Manager  has announced such  con-
         sideration), approval shall not be granted until the Administra-
         tor has acted on the proposed redesignation.

(e)   Procedures  for public participation

     (1)   (i)    Within 20  days after receipt of  an application  to con-
                 struct, or any addition to such  application, the Admin-
                 istrator shall advise the owner  or operator of  any  de-
                 ficiency in  the information  submitted  in support of the
                 application.   In  the event of  such a deficiency, the  date
                 of  receipt of  the  application  for the  purpose of para-
                 graph  (e)  (1)  (ii) of this section shall be the date  on
                 which  all  required  information  is received by the Admin-
                  istrator.

          (ii)   Within  30  days after  receipt of  a complete application,
                 the  Administrator shall:
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        (a)   Make a  preliminary  determination  whether the  source
             should  be  approved, approved with conditions, or  dis-
             approved.

        (b)   Make available  in at least  one  location  in  each re-
             gion in which the proposed  source would  be  construct-
             ed,  a copy of all materials submitted  by the  owner or
             operator,  a copy of the  Administrator's  preliminary
             determination and a copy or summary  of other  materi-
             als, if any, considered  by  the  Administrator  in mak-
             ing  his preliminary determination;  and

        (c)   Notify  the public,  by prominent advertisement in
             newspaper  of general  circulation  in  each region in
             which the  proposed  source would be constructed, of
             the  opportunity for written public comment  on the in-
             formation  submitted by the  owner  or  operator  and  the
             Administrator's preliminary determination on  the  ap-
             provability of  the  source.

(iii)    A copy of the notice required pursuant to this subpara-
        graph shall  be  sent  to the applicant and  to officials  and
        agencies  having cognizance over  the  locations where the
        source will  be  situated  as follows:  State  and local air
        pollution control agencies, the  chief  executive  of the
        city and  county; any comprehensive  regional  land  use  plan-
        ning agency; and any State,  Federal Land Manager  or  In-
        dian Governing  Body  whose lands  will be significantly  af-
        fected by the source's emissions.

(iv)     Public comments submitted in  writing within 30 days after
        the  date  such information is  made available shall  be con-
        sidered by the  Administrator  in  making his  final decision
        on the application.  No  later than 10  days  after the
        close of  the public  comment period,  the applicant  may  sub-
        mit  a written response to any comments submitted by the
        public.  The Administrator shall consider the applicant's
        response  in  making his final  decision. All comments shall
        be made available for public  inspection in  at least one
        location  in  the region in which  the  source  would be located.

(v)     The  Administrator shall  take  final action on  an  applica-
        tion within  30  days  after the close  of the  public  comment
        period.  The Administrator shall notify the applicant  in
        writing of his  approval, conditional approval, or  denial
        of the application,  and  shall set forth his reasons for
        conditional  approval or  denial.  Such  notification shall
        be made available for public  inspection in  at least one
        location  in  the region  in which  the  source  would be lo-
        cated.
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          (vi)     The  Administrator  may  extend  each  of the  time  periods
                  specified  in  paragraph (e)  (1)  (ii), (iv),  or  (v)  of this
                  section  by no more than 30  days  or such other  period as
                  agreed to  by  the applicant  and  the Administrator.

     (2)   Any owner or operator who  constructs, modifies, or  operates  a
          stationary source  not in accordance with the application,  as ap-
          proved and conditioned by  the  Administrator, or any owner  or op-
          erator of a  stationary source  subject to this paragraph  who  com-
          mences construction or modification after  June 1, 1975,  without
          applying for and receiving approval hereunder, shall be  subject
          to enforcement action under section 113 of the Act.

     (3)   Approval to  construct or modify shall become invalid if  construc-
          tion or expansion  is  not commenced  within  18 months after  receipt
          of such approval or if construction is  discontinued for  a  period
          of 18 months or  more.  The Administrator may extend such time  pe-
          riod upon a  satisfactory showing that an extension  is  justified.

     (4)   Approval to  construct or modify shall not  relieve any  owner  or
          operator of  the  responsibility to comply with the control  strat-
          egy and all  local, State,  and  Federal regulations which  are  part
          of the applicable  State Implementation  Plan.

(f)  Delegation of authority

     (1)   The Administrator  shall have the authority to delegate responsi-
          bility for implementing the procedures  for conducting  source re-
          view pursuant to paragraphs (d) and (e), in accordance with  sub-
          paragraphs (2),  (3),  and  (4) of this  paragraph.

     (2)   Where the Administrator delegates the responsibility for imple-
          menting the  procedures for conducting source review pursuant to
          this section to  any Agency, other than  a regional office of  the
          Environmental Protection Agency, the  following provisions  shall
          apply:

          (i)     Where the  agency designated is  not an air pollution  con-
                  trol agency,  such  agency shall  consult with the  appropri-
                  ate  State  and local air pollution  control agency prior to
                  making any determination required  by paragraph (d) of
                  this section.  Similarly, where the agency designated
                  does not have continuing responsibilities for  managing
                  land use,  such agency shall consult with  the appropriate
                  State and  local agency which  is primarily responsible  for
                  managing land use  prior to  making  any determination  re-
                  quired by  paragraph (d) of  this section.

          (ii)    A copy of the notice pursuant to paragraph (e) (1) (ii)
                  (c)  of this section shall be  sent  to the  Administrator
                  through  the appropriate regional office.
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(3)   In accordance with  Executive  Order 11752,  the  Administrator's
     authority for implementing the procedures  for  conducting  source
     review pursuant to  this  section shall  not  be delegated, other  than
     to a regional office of  the Environmental  Protection  Agency, for
     new or modified sources  which are  owned  or operated by the  Federal
     government or for new or modified  sources  located  on  Federal lands;
     except that,  with respect to  the latter  category,  where new or
     modified sources are constructed or operated on  Federal lands  pur-
     suant to leasing or other Federal  agreements,  the  Federal land
     Manager may at his  discretion, to  the  extent permissible  under ap-
     plicable statutes and regulations, require the lessee or  permittee
     to be subject to a  designated State or local agency's procedures
     developed pursuant  to paragraphs (d) and (e) of  this  section.

(4)   The Administrator's authority for  implementing the procedures  for
     conducting source review pursuant  to this  section  shall not be re-
     delegated, other than to a regional  office of  the  Environmental
     Protection Agency,  for new or modified sources which  are  located
     on Indian reservations except where the  State  has  assumed juris-
     diction over such land under other laws, in which  case the  Admin-
     istrator may delegate his authority to the States  in  accordance
     with subparagraphs  (2),  (3),  and (4) of  this paragraph.

     (39 FR 42514, Dec.  5, 1974;  40 FR 2802, Jan.  16,  1975, as
      amended at 40 FR 24535, June 9, 1975;  40 FR  25005,  June 12,
      2975;  40 FR 42012, Sept. 10, 1975)
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