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                           Introduction'
     The United States asserts that GM equipped approximately
470,000 model year 1991 through model year 1995 4.9 liter
Cadillacs with a fueling strategy that reduces the effectiveness
of the vehicles' emission controls in normal urban driving, and
that GM did not adequately disclose to the U.S. Environmental
Protection Agency its use of emissions-related fueling strategies
on model year 1989 through 1992 heavy duty truck engines and on
certain additional model year 1991 through 1995 passenger cars.
GM denies this, but has agreed to modify -the fueling strategy for
these 4.9L Cadillac vehicles in a way that reduces the emissions
of air pollutants from the vehicles without compromising
driveability.  GM has also agreed to pay a civil penalty and to
implement programs to reduce the emission of certain air
pollutants to the environment.
     1  This  introduction is a general description of this
settlement and not a substantive part of this Consent Decree.  To
the extent that any inconsistency exists between this intro-
duction and^the specific provisions of the Consent Decree,  the
specific provisions control.

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                         TABLE OF  CONTENTS


I.  JURISDICTION AND VENUE   	  .........    6

II.  DEFINITIONS	    6

III.  APPLICABILITY	    9
                   . -p
IV.  FACTUAL BACKGROUND  	    9

V.  OBJECTIVES	12

VI.  REMEDIAL PROGRAM	   12

     A.   Remedial Campaign	12
     B.   Emission Remedial  Projects   	   25
     C.   Emission Testing Program  	   30
     D.   Alternate Mapping	32

VII.  CIVIL PENALTY	32

VIII.  STIPULATED PENALTIES	33

IX.  FORCE MAJEURE	•  .  .   35

X.  DISPUTE RESOLUTION	38

XI.  GENERAL PROVISIONS	39

     A.  Effect of Settlement	39
     B.  Third Parties	........   41
     c.  costs  .	:	41
     D.  Public Documents	41
     E.  Public Comments	42
     F.  Reports,  Submissions, Notices, Communications   ...   42
     G.  Modification	45
     H.  Continuing Jurisdiction  	 ....   45
     I.  Confidential Business Information   	   46
     J.  Other Laws	46

XII.  TERMINATION	46

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            WHEREAS,  plaintiff,  the United States of America,  at
  the  request of  the  Administrator of the United States
'  Environmental Protection Agency and by authority of the Attorney
  General,  filed  the  Complaint herein against defendant General
  Motors  Corporation  ("GM")  alleging violations of the Clean Air
  Act,  as amended,  42 U.S.C.  §§  7401 et seq.  in connection with
  certain light duty  vehicles, and heavy duty gasoline engines
  manufactured and  sold by GM;
            WHEREAS,  GM has denied and continues to deny the
  violations alleged  in the Complaint;
            WHEREAS,  GM has developed a recalibration of the
  programmable read-only memory  chips used in the approximately
  470,000 4.9 liter Cadillacs  that are a focus of the United
  States'  Complaint;  the recalibrated memory  chip would result in
  significant emission reductions from such vehicles if installed
  on the  4.9 liter  vehicles; and GM has completed warm-weather
  validation of the recalibrated chips;  and will continue and
  complete cold-weather validation of the  recalibrated chips;
            WHEREAS,  the United  States and GM have consented to
  entry of .this Consent Decree without trial  of any issues;
            WHEREAS,  the United  States and GM assert,  and the  Court
  by entering this  Consent Decree finds,  that this Consent Decree
  has  been negotiated by the United States and GM in good faith and
  implementation  of this Consent Decree will  avoid prolonged and
             >*
  complicated litigation between the United States and GM, and that
                                  4

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this Consent Decree  is  fair,  reasonable, and  in  the public



interest;



     NOW, THEREFORE,  it  is hereby ORDERED AND DECREED as  follows;



                    I.  JURISDICTION AND VENUE



          1.  This Court has  jurisdiction of  the subject  matter



of this'action and the parties pursuant  to 28 U.S.C. §§ 1331,



1345, 1355, and Title II of the Clean Air Act, 42 U.S.C.  §§  7521-



7590.  Venue in this District is proper.



                         II.   DEFINITIONS



          2.  Unless specifically defined in  this section or



elsewhere in this Consent Decree, terms used  herein shall have



the meanings currently set forth in Sections  216 and 302  of  the



Act,  42 U.S.C. §.§ 7550 and 7602, and any regulations promulgated



under Title II of the Act, 42 U.S.C. §§ 7521-7590.



          3.  "Act" means the Clean Air Act,  as amended, 42



U.S.C. §§ 7401 et seq.



          4.  "California" means the State of California.



          5.  "GARB" means the California Air Resources Board.



          6.  "California 4.9L vehicles" means those 4.9  liter



vehicles certified to California emissions standards and



registered in the State of California.



          7.  "Certificate of Conformity" means a certificate



issued by the U.S. Environmental Protection Agency pursuant to



Section 206 of the Act,  42 U.S.C. § 7525.

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          8.   "Consent Decree"  or  "Decree" means  this  Consent
Decree, including the Appendices identified herein.
         / 9.   "Day" means a calendar day.  In computing any
period of time under this Consent Decree, where the last day
would fall on a Saturday, Sunday, or Federal Holiday,  the period
shall run until the close of business of the next working day.
          10.  "EPA" means the  United States Environmental
Protection Agency.
          11.  "4.9L vehicles"  means 1) vehicles in engine
families P1G4.9V8X6AO, P1G4.9W8XTAX, R1G4.9V8GAEB, R1G4.9V8G1EA,
S1G4.9V8GAEB, and S1G4.9V8G1EA; 2)  vehicles with engine codes
1D-1F, 2C-2E, 3C-3E, 4C-4E,  5C-5E,  and 6C-6E of engine family
N2G4.9V8X6A8; 3)  vehicles with  engine codes 1C-1E, 2D-2F,  3C-3E,
4C-4E, and 5C-5E of engine family N2G4.9W8XTA7;  and 4)  those
vehicles in engine families M2G4.9V8X6A7, M2G4.9W8XTA6,
N2G4.9V8X6A8, and N2G4.9W8XTA7  that received a service PROM
incorporating the accessory-based transient enrichment
calibration pursuant to running change N2-070 (August 9,  1991}
and Technical Service Bulletins T-91-81B {October 1991),  T-92-87
(April 1992), and T-93-44 (January 1993).
          12.  "GM" means General Motors Corporation.
          13.  "HDGEs" means GM heavy-duty gasoline engines.
          14.  "Interest" means interest at the rate specified
for debts owed to departments or agencies of the United States
pursuant to 31 U.S.C. § 3717.
                                6

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          15.   "Jumper TPS" means the  inoperative or partially

inoperative throttle position sensor employed by GM when

conducting engine mapping on model-year 1989 through 1996 HDGEs

in connection with applications for certificates of conformity.

          16.   "LDVs" means light duty vehicles.

          17.   "MY" means model year as defined in  40 C.F.R. §

 86.082-2.

          18.   "Other LDVs" means vehicles in engine families

M2G4.5V8X2W2 , N2G4.5V8X2W3, P4G1.9W8JPD9, P4G1.9V9JPD4,
   v
P4G1.9W5J817, P4G1.9V5J8H9, P1G4.6V8X8V1, P1G4.6W8XEB8,

P1G4 . 6V8X8B9 , R4G1.9VHG1EA, R4G1. 9VHGBEA, R4G1. 9V5G1EA,        ,«,

R4G1.9VSGEEA, R1G3.4V8GOEA, R1G3.4V8GAEA, R1G4.6VJG1EA,

R1G4. 6VJGAEA, S4G1.9VHGFEA, S4G1.9V7G2EA, S4G1.9V7GFEA,

S1G3.4V8GAEA, and S1G4.6VJGFEA.

          19.   "Paragraph" means a portion of this  Consent Decree

identified by an arabic numeral.

          20.   "Remedy PROMs" means the programmable read-only

memory chips incorporating the software and calibration changes

described in Appendices A and/or B hereto.

          21.   "Section" shall mean a  portion of this Consent

Decree identified by a roman numeral.

          22.   "Subject HDGEs" means vehicles or engines in

engine families KGM05.7BLA4, LGM4.3BLA3, LGM05.7BLA3,

LGM06.OAGA8, LGM07.4BLA3, MGM04.3BLA2, MGM05.7BLA2, MGM07.OBLA8,

MGM07.4ENA6, NGM04.3BLA1, NGM05.7BLA1, NGM07.OBLA7, NGM07.4BNA5,

                                7

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 PGM04.3BLAX, PGM05.7BLAX, PGM07.OBLA5, PGM07.4BNA3, RGM4.3C5GAAA,

 RGM5. 7C5GAAA, RGM7. OC5GAAA, RGM7.4C5GAEA, SGM4.3C5GAAA,

. SGM5.7C5GAAA, SGM7.0C5GAAA, SGM7. 4C5GAEA, TGM5. 7C5GAAA,

 TGM7.0C5GAAA, and TGM7.4C5GAEA.

           23.  "Subject Vehicles/Engines" means, collectively,

 4.9L vehicles, the Other LDVs, and the Subject HDGEs.

           24.  "US06" means the "high speed and/or high

 acceleration" driving cycle proposed in 60 Fed. Reg. 7404 {Feb.

 7,  1995),  or as such may be finally adopted.

           25.  "United States" means the United States of

 America,  acting on behalf of EPA.

                        III.  APPLICABILITY

           26.  This Consent Decree applies to and is binding upon

 the United States,  its employees and contractors,  and upon GM and

 its agents,  successors and assigns.  Any change in GM's ownership

 or corporate status shall in no way alter GM's responsibilities

 under this Consent Decree.  In any action to enforce-this Consent

 Decree,  GM shall not raise as a defense the failure of its

 officers,  directors,  agents, servants,  contractors, or employees

 to take actions necessary to comply with the provisions hereof.

                      IV.   FACTUAL BACKGROUND

           27.  GM has manufactured and sold, offered for sale, or

 introduced or delivered for introduction into commerce in the

 United States new motor vehicles and new motor vehicle engines,
            **
 including 4.9L Cadillacs, Other LDVs and Subject HDGEs.

                                 8

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          28.  Each certificate of conformity issued to GM by EPA


during the time period relevant to the claims alleged in the


Complaint provides that the certificate covers only those new


motor vehicles or new motor vehicle engines which conform in all


material respects to the vehicle or engine design specifications


provided to EPA in the certificate application for such vehicle


or engine; except that each certificate of conformity issued by


SPA for vehicles or engines that GM proposed or proposes to sell


only in California, or other states that have adopted the


California emission standards, provides that the certificate


covers only those new motor vehicles or new motor vehicle engines


which conform, in all material respects,  to the vehicle or engine


design specifications described in the application submitted to


the California Air Resources Board.
                           ~?s

          29.  In August 1991, GM implemented a change in its


production MY 1992 4.9L Cadillac vehicles that introduced an


enrichment calibration to the fueling strategy.   This calibration


was subsequently included in production MY 1993-1995 4.9L


Cadillacs and in service parts received by certain MY 1991-1992


4.9L Cadillacs.  The United States alleges in its Complaint that


this calibration has a detrimental effect on a vehicle's emission


control system and that this calibration was not adequately


reported to EPA.


          30.  GM also equipped the Other LDVs with enrichment
           ,*•
calibrations relating to the operation of certain accessories


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 (the "accessory calibrations").  The United States alleges.in  its
Complaint that GM's applications for certificates of conformity
for the Other LDVs did not fully describe the accessory
calibrations installed on the Other LDVs.
          31.  GM equipped its MY 1989 through 1996 Subject HDGEs
with timer-based enrichment calibrations  (the "timer
calibrations").  The United States alleges in its Complaint that
GM's applications for certificates of conformity for the MY 1989
through 1992 Subject HDGEs did not adequately describe the
timer-based enrichment calibration installed on the engines.
          32.  As required by EPA's regulations, GM conducted
emission tests of its MY 1989 through 1992 Subject HDGEs prior to
submitting applications to EPA for certificates of conformity for
those engines.  In connection with such testing, GM used an
engine mapping procedure that differed from the engine mapping
procedure found in 40 C.F.R. §§ 86.1332-84(a)-(e)  and 86.1332-
90(a)-(e).  The United States alleges in its Complaint that GM
               *
did not disclose to EPA its use of an alternate mapping procedure
for the Subject HDGEs.
          33.  GM also used the alternate mapping procedure on
two Subject HDGEs audited by EPA in July and August '19.91 pursuant
to Section 206(b)  of the Act.  The United States alleges in its
Complaint that GM did not adequately disclose the use of the
alternate mapping procedure during such tests.
                                10

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           34.   GM denies the material allegations of the
 Complaint  and  denies  that it has violated the Act or failed to
 comply with. EPA' s regulations as alleged in the Complaint.
                          V.  OBJECTIVES
           35.   The objectives of this Consent Decree are (a)  to
 implement  an emission remedial  campaign  to reduce emissions
 associated with the enrichment  strategy  on the 4.9L  Cadillac
 vehicles without  creating unreasonable safety risks;  (b)  to
 implement  one  or  more emission  remedial  projects  and an  emission
 test program to remedy and/or assess  the past and future emission
 of air pollutants  from the vehicles and  engines covered  by  this
 Consent Decree; and (c)  to resolve the United States' claims  for
 civil penalties and injunctive  relief described in Paragraph  96
below.
                      VI .  pBMEDIAL PROGRAM
A.   Ro
          36.  For those vehicles that are not California 4.9L
vehicles, GM shall submit to EPA for review and approval a plan
or plans for the conduct of a remedial campaign with respect to
each class  (as determined by the specific Remedy PROM a group of
vehicles will receive) of the 4.9L vehicles.  Such plan shall be
submitted within 30 days of either the entry of this Consent
Decree or the completion of validation of a particular package of
calibration and software changes, whichever is later.  The
remedial campaign plan shall include:
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               a.  A description of the vehicles to receive the
Remedy PROM, including the method or methods by which GM
identified the vehicles serviced pursuant to Technical Service
Bulletin T-91-81B and its updates;
               b.  A description of the method by which GM will
determine the names and addresses of vehicle owners;
               c.  A description of the procedure to be followed
by vehicle owners to have the Remedy PROMs installed.  This shall
include designation of the date on or after which the owner can
have the Remedy PROMs installed, the time reasonably necessary to
perform the labor required to install the Remedy PROMs, and the
designation of facilities at which the Remedy PROMs can be
installed;
               d.  If any vehicles are to be remedied by persons
other than dealers or authorized warranty agents of the
manufacturer, a description of the class of persons other than
dealers and authorized warranty agents of the manufacturer who
will remedy the vehicles, and a statement indicating that the
participating members of the class will be properly qualified and
equipped to perform such remedial action;
               e.  Copies of the letters of notification to be
sent to vehicle owners;
               f.  A description of the system by which GM will
assure that an adequate supply of parts will be available to
           .--*                                            '    '
perform-the remedy under the remedial campaign plan including the
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date by which an adequate supply  of parts will be available  to

initiate the remedial campaign, the percentage of the total

number of parts required by each  repair facility performing  the

remedy that will be shipped to such facility to initiate.the

campaign, and the method to be used to assure the supply remains

both adequate and responsive to owner demand;

               g.  A copy of all  necessary instructions to be

sent to those persons who are to  perform the repair under the

remedial campaign plan, including instructions for rendering the

old PROMs inoperative and the means by which a service technician

determines the correct PROM to be installed in each vehicle

subject to this remedial campaign; and

               h.  A description  of the impact of the proposed
                  ta-^
changes on fuel consumption, safety, and driveability of each

class or category of vehicles to  be recalled and a brief summary

of the data, technical studies, or engineering evaluations which

support these conclusions.

          37.  Notification to vehicle owners shall be made by

first class mail.

          38.  The notification of vehicle owners shall contain

the following:

               a.  The statement:   "The Administrator of the U.S.

Environmental Protection Agency has determined that MY 199X GM

Cadillacs equipped with 4.9L engines may require modifications in
           **
order to comply with requirements of the Clean Air Act designed

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 to protect public health and welfare.   GM has determined that the
 modifications required by EPA will help reduce emissions of
 carbon monoxide and hydrocarbons,  which are regulated by EPA
 under the Clean Air Act.   Because  GM has achieved this improved
 emissions performance without compromising driveability,  EPA and
 GM strongly encourage you to bring your car to a dealer to
 perform the modification."
                b.   A statement that the vehicles will be remedied
 at GM's expense;
                c.   A clear description of the components that
 will  be affected by the remedy and a general statement of the
 measures to be taken to implement  the  remedy;
                d.   A description of the procedure which the
 vehicle owner should follow to obtain  installation of the Remedy
 PROMS.   This shall include designation of the date on or after
 which the owner can have  the Remedy PROMs installed,  the time
 reasonably necessary to perform the labor required to install the
 Remedy PROMs,  and the designation  of facilities at which the
 Remedy PROMs can be obtained;
                e.   A card to be used by a vehicle owner in the
 event the vehicle to be recalled has been sold,  retired,  or
'otherwise removed from service.  -Such  card should be  addressed to
 the manufacturer and shall provide a space in which the owner may
 indicate the name and address  of the person to whom the vehicle
 was sold.
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          39.  GM shall take appropriate steps to locate vehicle
owners, including obtaining motor vehicle registration lists as
available from State or commercial sources, as necessary to
obtain the names and addresses of vehicle owners to ensure an
effective notification.
          40.  EPA may require GM to send a subsequent
notification to vehicle owners by first class mail.
          41.  The remedial campaign plan shall provide that
those who perform the repair shall be required to affix a label
to each vehicle repaired under the remedial campaign plan.  The
label shall be placed in such location as approved by EPA
consistent with State law and shall be fabricated of a material
suitable for the location in which it is installed and.which is
not readily removable intact.  The label shall contain:
               a.  The recall campaign number; and
               b.  A code designating the campaign facility at
which the repair was performed.
          42.  GM shall arrange under its existing agreements
with repair facilities to ensure that vehicles brought^to such
facilities in response to the remedial campaign are equipped with
Remedy PROMs and that old PROMs are rendered inoperative.   The
Remedy PROMs for MY 1991-1993 vehicles shall include the
calibration and software changes described in both Appendices A
and B.  The Remedy PROMs for MY 1994-1995 vehicles shall include
           ^
only the calibration and software changes described in
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Appendix A.  GM shall direct repair  facilities  to render
inoperative each old PROM removed  from a 4.9L vehicle.  GM shall
give notice to such repair facilities that any  reuse of an old
PROM in any vehicle would be regarded by EPA as tampering  under
the Clean Air Act that could subject the repair facility to
penalties of up to $2500 per violation.
          43.  EPA shall provide GM with notice of approval or
disapproval of the remedial campaign plan(s) within 30 days of
its submittal to the Agency.  If the plan is disapproved,  EPA
shall provide the reasons for disapproval, and GM shall have 30
days to submit a revised remedial  campaign plan for approval.
Any disagreements between GM and EPA regarding the remedial
campaign plan shall be resolved through the dispute resolution
provisions in Section X of this Consent Decree.
          44.  Within 30 days of signing this Consent Decree, GM
shall submit to the United States  documents or a complete
narrative description reflecting the validation testing conducted
with respect to the Remedy PROMs through the date of such
submission and its plan for further testing.  GM shall complete
cold-weather validation testing by March 1,  1996.  The United
States recognizes,  however,  that a need for additional testing
may be identified during such testing.   For this reason GM will
report on the progress of its cold weather validation testing on
February 1, 1996 and advise the United States and the Court of
           -*•
any additional testing that it has identified and the reasons for
                                16

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such additional testing.  If a need for such additional  testing
arises after February 1, 1996, GM will notify the United States
and the Court within 5 days of its determination to conduct
additional testing.  In either event, GM shall be afforded such
time as is reasonably necessary to complete such testing.
          45.  If GM determines, based on its customary
cold-weather validation testing for vehicles of the same kind,
that an element of any set of the software and/or calibration
changes described in Appendices A and/or B causes a vehicle to
perform unsatisfactorily during validation, GM will provide the
United States with all records relating to the validation of the
software and calibration changes for the relevant class of
vehicles.  GM may, subject to the review and approval of the
United States, revise or delete that element to achieve
satisfactory performance of the recalibration during validation.
In such circumstances,  GM shall employ best efforts to identify
alternate software or calibration changes that would provide
emission reductions that EPA agrees are equivalent to those
projected to result from the Remedy PROMs and that would not pose
unacceptable safety or driveability risks.
          46.  If GM,  despite its best efforts,  concludes that it
cannot identify software or calibration changes providing the
emission reductions that EPA agrees are equivalent to those
projected to result from the Remedy PROMs,  GM shall notify EPA
           ^
and shall propose software or calibration changes for the
                                17

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affected vehicles which would provide the greatest achievable
level of emission reductions while avoiding unreasonable safety
or driveability risks.  GM will provide emissions data on the
proposed revised calibration within 30 days of proposing any
revision.  If EPA approves GM's proposal, GM shall implement the
remedial program using the alternate software or calibration
changes for the affected vehicles in lieu of those set out in
Appendices A and/or B.
          47.  In the event that GM and the United States cannot
agree on the revision or deletion of an element to achieve
satisfactory performance of a particular recalibration during
validation and GM considers the United States'  recalibration
remedy to pose unacceptable risks for vehicle safety and/or
driveability, the affected vehicles shall be withdrawn from the
remedial emissions campaign.  If vehicles are withdrawn,  GM shall
contribute to the emission remedial project the amount of money
saved by withdrawing these vehicles from the campaign, based on
the assumption,-for this purpose, that 100 percent of the
vehicles withdrawn from the remedial emissions campaign (rather
than some lower percentage based on historical campaign capture
rate) would have responded to the campaign.  Such amount will be
calculated as $78 times the total number of vehicles withdrawn
from the remedial campaign and provides a financial disincentive
to GM for withdrawal of vehicles from the campaign.
                                18

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          48.  Subject to Paragraph 49 of this Consent Decree
with respect to California 4.9L vehicles, GM shall commence the
remedial program by sending notifications to 4.9L vehicle owners
pursuant to the remedial campaign plan(s)'and shall implement the
plan(a) based on the schedule set out therein.
          49.  At the same time as GM submits to EPA remedial
campaign plans for 4.9L vehicles other than California 4.9L
vehicles, GM shall submit to EPA the remedial campaign plan(s)
for California 4.9L vehicles of the same model and model year.
The remedial campaign plan for the California 4.9L vehicles shall
conform to the applicable requirements of Paragraph 36 of this
Decree and Article 2.1 of Title 13, California Code of
Regulations, which requires, inter alia,  that any manufacturer
proposing to initiate an emission remedial campaign shall submit
a plan for approval to CARB.  If any delay occurs in obtaining
CARB approval of one or more remedial campaign plans for
California 4.9L vehicles, GM will be entitled to relief urider the
Force Majeure provisions of Section IX of this Consent Decree
from the requirement to implement the remedial campaign with
respect to the affected class or classes of California 4.9L
vehicles, for so long as GM is undertaking diligent efforts to
secure approval of such remedial campaign plan(s).  Such efforts
to avoid delay include:
                                19

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      (a) the prompt initiation of discussions with GARB regarding
the installation of the Remedy PROMs on California 4.9L vehicles
pursuant to the remedial campaign plan; and
      (b) timely compliance with reasonable information requests
from California regarding the remedial campaign plan.
     In the event that, notwithstanding diligent efforts by GM to
secure CARB's approval of the Remedy PROMs on California 4.9L
vehicles, GM and CARS have failed to reach and reduce to writing
substantial agreement within six months of lodging of this
Consent Decree concerning the appropriate remedy for California
4.9L vehicles GM shall file, within 15 days after the close of
such six-month period, an emission remedial campaign plan with
CARB pursuant to 13 C.C.R. § 2113 and shall use best efforts to
obtain approval of such plan.  Such plan shall provide for
implementation of the remedial calibration and software changes
described in Appendices A and B to this Consent Decree.
          50.  In the event that CARB approves the implementation
of the remedial calibration and software changes described in
Appendices A and B, GM will implement those changes in a remedial
emissions campaign for California 4.9L vehicles.  If GM's plan as
filed with CARB pursuant to 13 C.C.R. § 2113 is ultimately
determined to conform to applicable requirements of California
law, GM shall implement the final,  validated federal calibration
and software changes on California 4.9L vehicles.  If CARB
           ,*
determines that the current calibration is more appropriate for
                               20

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California 4.9L vehicles than an alternate calibration in some or
all California 4.9L vehicles owing to environmental conditions
existing in California, no remedial campaign will be required by
this Decree for those California 4.9L vehicles, and those
vehicles will not be counted in the calculation of the Campaign
Capture Rate used to determine the level of the Emission Remedial
Project funding pursuant to Section VLB of this Consent Decree.
           51.  GM's implementation of any remedy agreed to,
approved by, or ordered by CARB under its authority pursuant to
Article 2.1, California Code of Regulations for a class of
California 4.9L vehicles,  will serve as full satisfaction of its
remedial campaign obligations under this Decree regarding such
class of California 4.9L vehicles.   The United States agrees that
any agreement or order regarding the scope of a remedy applied to
California 4.9L vehicles will not affect the remedy for other
4.9L vehicles, the amount of the civil penalty, or the level of
funding of the emission remedial projects.  Nothing herein,
however, shall be construed to allow GM to delay commencement of
the remedial campaign plan with respect to other 4.9L vehicles.
          52.  If, through validation,  GM determines that an
element of any set of the software  and/or calibration changes
described in Appendices A or B would cause unreasonable
driveability and/or safety risks for all or some class of
California 4.9L vehicles,  the provisions of Paragraphs 45-47
           .-«
shall apply with respect to those California 4.9L vehicles,
                               21

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except that changes to GARB-approved Remedy  PROMs shall be
subject to the review and approval of CARS instead of EPA.
          53.  GM shall send to EPA a copy of all communications
which relate to the remedial campaign plan directed to dealers
and other persons who are to perform the repair under the
remedial campaign plan. , Such copies shall be mailed to EPA
contemporaneous'ly with their transmission to dealers and other
persons who are to perform the repair under  the remedial campaign
plan.
          54.  GM shall provide for the establishment and
maintenance of records to enable the parties to monitor the
implementation of the remedial campaign.  The records shall
include the following:
               a.  the remedial campaign number as designated by
GM;
               b.  the date owner notification was begun,  and
date completed;
               c.  the number of 4.9L vehicles referenced in
Paragraph 11 of this Consent Decree;
               d.  the number of vehicles determined to be
unavailable for repair under the remedial campaign plan due to
exportation,  theft,  scrapping,  or other reasons specifically
described and supported by GM;  and
               e.  the number of vehicles in each class of 4.9L
vehicles actually receiving repair under the remedial campaign plan.
                               22

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If GM determines that information provided to EPA pursuant  to
subparagraph c and d of this Paragraph is incorrect, GM shall
maintain revised figures together with an explanation of the
discrepancy.  Figures maintained pursuant to subparagraph e of
this Paragraph shall be cumulative totals.
          55.  GM shall maintain in a form suitable for
inspection, such as computer information storage devices or card
files, lists of the names and addresses of vehicle owners to whom
notification was given and who received the Remedy PROM under the
remedial campaign plan.  The records described in this Paragraph
shall be made available to EPA upon request.
          56.  The records required by this section shall be
retained until termination of this Consent Decree pursuant  to
Paragraph 112 of this Consent Decree.
          57.  Within 30 days of the signing of this Consent
Decree,  GM shall provide to EPA three PROMs incorporating the
remedial calibration and software changes described in
Appendices A and B to this Consent Decree,  one each for 1992
Seville, 1992 DeVille and 1993 DeVille configurations.  Upon
request of EPA,  GM shall.provide to EPA a PROM representing each
nonidentical recalibration employed for purposes of the remedial
campaign within 30 days of commencement of production of each
such PROM.
          58.  Not later than 180 days after the close of the
six-quarter period for the last emission remedial campaign,  GM
                               23

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shall conduct an audit to verify  the extent to which vehicles
that have been brought in for service under the emissions
remedial campaign, have had the correct Remedy PROMs installed.
The audit will consist of an appropriate representative sampling
of 50 vehicles selected from the  general public that have the
repair label required by Paragraph 41 of this Consent Decree.
The audit report shall'be maintained by GM until termination of
this Decree pursuant to Paragraph 112 and shall be made available
to EPA for its review upon request.
          59.  GM shall submit the proposed remedial campaign
plan and reports required by this Consent Decree and the approved
remedial campaign plan to:
          Director, Air Enforcement Division (2242A)
          Office of Enforcement and Compliance Assurance
          U.S. Environmental Protection Agency
          401 M Street,  S.W.                   '
          Washington, D.C.-20460
          Chief, Environmental Enforcement Section
          Environment and Natural Resources Division
          U.S. Department of Justice
          P.O. Box 7611 Ben Franklin Station
          Washington, D.C. 20044-7611
by first class mail.
B.   Emission Remedial Prelects
          60.  GM shall establish an emission remedial project
fund of at least $7.05 million and (except as may be required
pursuant to Paragraph 47 of this Consent Decree)  not more that
$8.75 million for the implementation of projects to reduce
emissions of regulated air pollutants.   GM shall propose at least
                               24

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two of the projects identified in Appendix C to this Consent
Decree.  Either party may suggest additional projects for
inclusion in Appendix C.
          61.  The amount to be spent on the emission remedial
projects shall be as follows:  if GM achieves a campaign capture
rate of 70 percent or less, then the fund shall be $8.75 million;
if GM achieves a campaign capture rate of 75 percent or greater,
then the fund shall be .$7.05 million; and if GM achieves a
campaign capture rate of 70 percent or greater, but less than 75
percent, then the fund shall be $7.05 million plus $34,000 for
each tenth of a percentage point in the campaign capture rate
below 75 percent, up to a maximum of $8.75 million.
          62.  For purposes of the preceding Paragraph,  the
campaign capture rate shall be determined at the end of six
quarters from the mailing of owner notification letters.  The
campaign capture rate shall be determined by dividing the number
of subject 4.9L vehicles•that receive Remedy PROMs during the six
quarter period from the mailing of the initial owner notification
by the simple average of the number of vehicles subject to the
remedial campaign at the time of owner notification and at the
close of the six quarter period,  as evidenced by data obtained by
GM from R.L. Polk & Co. (or a comparably reliable third party
source if R.L. Polk data is not available).   Any California 4.9L
vehicles required to be excluded from the remedial campaign in
           «*•                           '
California, as described in Paragraph 50 of this Consent Decree,
                               25

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shall be wholly excluded from such computation.  The campaign

capture rate shall be calculated to two decimal points and

rounded to one decimal point, using the rounding procedures set

forth in ASTM E 29-67  (Reapproved in 1980)  (cited in 40 C.F.R.

§ 86.088-28(a)(4)(i)(B)) and shall be reported to EPA.in a

campaign capture rate determination report within 180 days of the

close of the six-quarter period for the last emission remedial

campaign.

          63.  GM shall commence implementation of emission

remedial- projects consistent with the schedules contained in the

plans approved pursuant to Paragraph 65 at the $7.05 million

level and shall supplement the funding of the projects,  if

required by Paragraph 61 of this Consent Decree,  promptly after

the campaign capture rate has been determined.

          64.  Within 30 days of entry of this Consent Decree, GM

shall submit to the United States an emission remedial project

plan describing in detail the steps to be taken to implement the

emission remedial projects.  The emission remedial project plan

shall contain a detailed description of the program,  including
                <
the expected reductions in the emission of air pollutants,  the

amount of money to be spent on administrative and other costs not

directly related to reducing the emission of air pollutants,  and

the expected time frames for commencing and completing projects.

Each date for commencement of a remedial project included in the
           ,i*
remedial project plan shall be the earliest practicable date,

                               26

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given the nature of the project, for commencement of the project
after EPA approval of the emission remedial project plan.
          65.  The United States shall review and approve or
disapprove the proposed emission remedial project plan within 30
days of receiving it.  If the emission remedial project plan is
disapproved, the United States shall provide an explanation as to
why it is being disapproved along with suggestions for
modifications to the plan.  GM shall have 30 days to revise its
emission remedial project plan to incorporate those suggestions
or to request that the matter be resolved through the dispute
resolution provisions in Section X of this Consent Decree.
          66.  Any modification to the emission remedial project
plan after it has been approved by the United States must receive
the written consent of both parties.
          67.  The emission remedial projects shall be completed
consistent with the schedule set out in the emission remedial
project plans approved pursuant to Paragraph 65 of this Consent
Decree,  but in no event shall completion of any program be
scheduled to occur after November 30,  1999.
          68.  GM shall not use or rely on the emission
reductions generated as a result of projects undertaken pursuant
to the emission remedial project plan in any Federal or State
emission averaging,  banking,  trading or other emission compliance
program.
                               27

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          69.  GM shall:  (1) allow EPA access, at  reasonable
times and with reasonable advance notice, to any GM facilities
where emission remedial projects are being  implemented pursuant
to this Consent Decree; and  (2) respond to  reasonable requests by
EPA for information on the implementation of such  emission
remedial projects.
          70.  GM shall maintain legible copies of documentation
underlying research and data for all documents submitted to the
United States pursuant to the approved emission remedial project
plan until termination of this Consent Decree pursuant to
Paragraph 112, and GM shall provide the documentation of any such
underlying research and data to the United States within fifteen
days of a request for such information.
          71.  GM shall submit to EPA an emission remedial
project completion report with respect to each project in an
approved plan within 120 days of completion of the project.  Each
completion report shall identify the completed project,  describe
the results achieved in implementing the approved emission
remedial^project plan,  estimate the reductions in the emission of
air pollutants achieved by the project,  and describe funding of
the project, including a break-out of administrative and other
costs not directly related to reducing the emission of air
pollutants.
          72.  In any pre-prepared written materials intended for
public dissemination and any pre-prepared broadcast announcements
                               28

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made by GM in reference to any emission remedial project

undertaken pursuant to this Consent Decree, GM shall include  the

following language "[tjhis program is required by an agreement

with the United States Environmental Protection Agency."  In

addition, GM shall make best efforts to include this statement in

other public announcements regarding any emission remedial

project.

          73.  GM shall submit the proposed plan and all notices

and reports required by this Consent Decree related to the

emission remedial projects to:

          Director, Air Enforcement Division  (2242A)
          Office of Enforcement and Compliance Assurance
          U.S. Environmental Protection Agency
          401 M Street,  S.W.
          Washington,  D.C. ,20460

          Chief, Environmental Enforcement Section
          Environment and Natural Resources Division
          U.S. Department of Justice
          1425 New York Avenue,  N.W.
          Washington,  D.C.  20005

by first class mail.

C.   Emission Testing Program

          74.  GM shall implement the emission testing program

set forth in Appendix D to this Consent Decree.   The program will

apply to future configurations of the Subject Vehicle/Engines for

model years 1997,  1998,  and 1999, as the term "model year" is

defined in 40 C.F.R.  § 86.082-2.   After the initial testing of

model year 1997 engine families,  further testing (to be conducted
           .•""
only once a year,  if necessary)  under this Paragraph of a

                               29

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particular engine family will be required only in the following
circumstances:  (l) addition of an accessory or timer-based
enrichment strategy;  (2) changes to accessory or timer-based
enrichment strategies, as applicable, present in the vehicles or
engines involved in the initial testing that would increase the
degree, extent or likelihood of enrichment; or (3) other changes
to engine fueling strategy or emissions control systems employed
on vehicles involved  in the initial testing that would, pursuant
to best engineering judgment, increase the impact on exhaust
emissions of carbon monoxide or hydrocarbons of a previously-
tested enrichment strategy.  Further testing under this Paragraph
required by such other changes to engine fueling strategies or
emission control systems employed by engine families that were
initially tested under this Paragraph shall be limited to the
applicable engine and chassis dynamometer testing procedures
required for a specific enrichment timer- and/or accessory-based
strategy pursuant to Appendix D,  including any custom dynamometer
schedules prepared in connection with the on-road testing
described in Appendix D, unless the other changes referred to
above increase emissions of carbon monoxide or hydrocarbons over
the prior vehicle configuration by more than 30 percent.
     In determining whether such other changes increase emissions
from light-duty vehicles or heavy-duty vehicles subject to
chassis dynamometer testing under Appendix D,  GM shall compare
the average results of US06 tests conducted for the vehicles or
                               30

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engines in the two relevant configurations.  In determining
whether such other changes increase emissions by more than 30 per
cent from heavy-duty engines subject to engine dynamometer
testing under Appendix D, GM shall compare the average results of
FTP transient tests conducted for-the vehicle or engines in the
two relevant configurations.
     Any further annual testing required under any portion of
this Paragraph shall be commenced at a time consistent with the
requirements of Appendix D relating to on-road vehicle or engine
testing in the month of July or August.
D.   Alternate Mapping
          75.  GM shall not make any unauthorized modification to
any HDGE used for mapping when testing the engine for the purpose
of seeking a certificate of conformity.  GM shall report to EPA
the information regarding alternate mapping used in certification
or selective enforcement audit testing that is required to be
maintained pursuant to EPA regulations.  GM shall not use the
                                                           ^
jumper TPS when mapping engine's during certification or auditing
of HDGEs after model year 1996.
          76.  Nothing in these provisions shall alter,  in any
way, GM's obligations to comply with all applicable'reporting
requirements found in the EPA regulations under Title II of the
Act, 42 U.S.C. §§ 7521-7590.

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                       VII.   CIVIL PENALTY
          77.  GM shall pay  to  the United States  $11 million
 ($11,000,000)  in   civil penalties  within  15 days  of entry of this
Consent Decree.   Late payment of the  civil penalty is .subject to
interest and fees as specified  in  31  U.S.C. §3717.
          78.  Payment shall  be made  by Electronic Funds
Transfers by 4:00 p.m. Eastern  Time on the due date to the
Department of Justice lockbox bank in accordance  with specific
instructions to be provided  to  GM  upon entry of this Consent
Decree and shall  reference Department of Justice  Case No.
90-5-2-1-2011 and the civil action number  of this matter.  GM
shall transmit notice of such payments to  the United States and
EPA.
          79.  Penalty payments made pursuant Paragraph 77 of
this Consent Decree are civil penalties within the meaning of
Section 162(f)  of  the Internal Revenue Code,  26 U.S.C.  § 162(f)
and are not tax deductible for the purposes of Federal Law.
                   VIII.   STIPULATED PENALTIES
          80.  GM will pay stipulated penalties to the United
States for failure by GM to comply with the terms of this Consent
Decree as follows:
               a.  for failure to certify commencement of the
remedial campaign plan by the date specified in the approved
remedial campaign plan,  $2,500 per day.
                                32

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               b.  for failure to certify substantial completion
of the remedial campaign  {including submission of a campaign
capture rate determination report) to the United States by the
date within the time specified in Paragraph 62 of this Consent
Decree, $2,500 per day.
               c.  for failure to submit an emission remedial
project plan proposal to the United States within the time
required by Paragraph 64 of this Consent Decree, $2,500 per day.
               d.  for failure to certify substantial completion
of emission remedial project plans (including submission of an
emission remedial project completion report) within the time
required by Paragraph 71 of this Consent Decree, $2,500 per day.
               e.  for failure to submit a quarterly report
within the time required by Paragraph 103,  $500 per day;
               f.  for failure to supplement a quarterly report
within 30 days after receiving notice from EPA that information
required to be included in any quarterly report by Paragraph 103
of this Consent Decree was omitted from such report, $500 per
day.
          81.  Stipulated penalties are not the United States'
exclusive remedy for GM's violation of this Consent "Decree.  The
United States reserves the right to pursue any other remedies to
which it is entitled, including, but not limited to, additional
injunctive relief for GM's violations of the Consent Decree or
           **•
the Actr.
                                33

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          82.  GM will pay stipulated penalties upon written
demand by the United States Department of Justice within 30 days
after GM receives such demand, or if the dispute resolution
provisions of Section X are invoked and GM is determined to be
liable at the conclusion of that process, GM will pay stipulated
penalties within 31 days after completion of the Section X
dispute resolution process.  Stipulated penalties shall be paid
by cashier's or certified check, payable to the "Treasurer,
United States of America," and sent to the United States Attorney
for the District of Columbia, Judiciary Center Building, 555
Fourth Street, N.W.,  Washington, D.C. 20001, referencing the
civil action number of this matter.  A copy of the transmittal
letter and check shall be sent to the United States and EPA.
          83.  Stipulated penalties shall continue to accrue
during any dispute resolution process.  Should GM dispute its
obligation to pay part or all of a stipulated penalty, it may
place the disputed amount demanded by the United States in a
commercial escrow account pending resolution of the matter and
request that the matter be resolved through the' dispute
resolution provisions in Section X of this Consent Decree.  In
the event that the Court resolves the dispute in GM's favor, the
escrowed amount plus accrued interest shall be returned to GM.
                        IX.   FORCE  MAJEURE
          84.  A Force Majeure event is an event resulting from
circumstances beyond the control of GM or any entity controlled
                                34

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by GM that causes or may cause a delay in compliance with any
provision of this Consent Decree.  For purposes of Paragraphs 48-
52, inclusive, of this Consent Decree, with respect to GM's
  .<•*.
obligation to implement the remedial campaign for California 4.9L
vehicles, CARS's failure to approve, or delay in approving, the
remedial campaign plan for California 4.9L vehicles shall be
deemed a Force Majeure event for so long as GM is complying with
the requirements of those Paragraphs of this Consent Decree.  If
a Force Majeure event occurs, GM shall notify the United States
in writing as soon as practicable, but in any event within 30
days of when GM first knew of the event or should have known of
the event by the exercise of due diligence.  In this notice GM
shall specifically invoke the Force Majeure provisions of this
Consent Decree and describe the anticipated length of time the
delay may persist,  the cause or causes of the delay,  and the
measures taken or to be taken by GM to prevent or minimize the
delay and the schedule by which those measures will be
implemented.  GM shall adopt all reasonable measures to avoid and
minimize such delays.
          85.  The United States may render GM's force majeure
rights voidable as to the specific event for which GM has failed
to comply with such notice requirement,  and, if voided, such
rights shall be of no effect as to the particular event involved.
All issues between the parties respecting the timeliness or
                                35

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  adequacy of the notice required by this Section are subject to
  the Dispute Resolution provisions in Section X of this Decree.
            86.  The United States shall notify GM in writing of
  its agreement or disagreement with GM's claim of a delay or
  impediment to performance within 30 days of receipt of the force
  majeure notice required by this Section.  If the United States
  agrees, the parties shall stipulate to an extension of the
  particular compliance requirement(s)  affected by the delay.  Such
  stipulation shall be submitted as a modification to this Consent
  Decree pursuant to the modification procedures established in
  this Consent Decree.  GM shall not be liable for stipulated
  penalties for the period of any such delay.
            87.  If the United States does not agree with GM's
  claim of a delay or impediment to performance,  either party may
  submit the matter to the Court for resolution through the dispute
  resolution provisions in Section X of this Decree.  If the Court
  determines that the violation has been or will be caused by
  circumstances beyond the control of GM or any entity controlled
.  by GM, including its contractors,  GM shall be excused as to that
  violation and delay (including stipulated penalties for that
  period).
            88.  In any dispute before the Court pursuant to the
  Dispute Resolution provisions of Section X of this Decree,  GM
  shall bear the burden of proving the existence and duration of
             .-^
  the claimed force majeure.   An extension of  the compliance date
                                  36

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based on a particular event shall result in extension of
subsequent compliance dates to the extent that the delay in
subsequent compliance is caused by the delay resulting from the
Force Majeure event.
          89.  Unanticipated or increased costs or expenses
associated with the performance of GM's obligations under this
Decree, in and of themselves, do not constitute Force Majeure
events.
                     X.  DISPUTE  RESOLUTION
          90.  The dispute resolution procedures provided by this
section shall be available to resolve all disputes arising under
this Consent Decree, provided that the party making such
application has made a good faith attempt to resolve the matter
with the other party.
          91.  The dispute resolution procedure required herein
is invoked upon written notice by one of the parties to this
Decree to the other advising of a dispute pursuant to this~
Section.  The notice shall describe the nature of the dispute,
and shall state the noticing party's position with regard to such
dispute.  The party receiving such a notice shall acknowledge
receipt of the notice and the parties shall expeditiously
schedule a meeting, to occur not later than seven days from the
receipt of such notice,  to discuss the dispute informally in
accordance with this Section.
                                37

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          92.  Disputes submitted to dispute resolution shall,  in
the first instance, be the subject of informal negotiations
between the parties.  Such period of informal negotiations shall
not extend beyond 30 calendar days from the date of the first
meeting between representatives of the United States and GM,
unless the parties' representatives agree to extend this period.
          93.  In the event that the parties are unable to reach
agreement during the informal negotiation period, either party
may file with the Court a petition which describes the nature of
the dispute.  The other party shall respond to the petition
within 30 calendar days of filing.  Where the nature of the
dispute is such that a more timely resolution of the issue is
required, the time periods set out in this section may be
shortened upon mutual agreement by the parties to the dispute.
Additionally, if mutual agreement cannot be achieved,  the notice
and informal negotiation periods set out in this section may be
shortened upon notice of one of the parties.  In such event the
response date shall be as provided by Federal Rules of Civil
Procedure or as provided by the Court.
          94.  As part of the resolution of any dispute submitted
to dispute resolution,  the parties may ask the Court to extend or
modify the schedule for meeting any deadlines under this Consent
Decree, the approved remedial campaign plan, or the approved
emission remedial project to account for the delay that occurred
           .*•»•
as a result of dispute resolution.
                               38

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                      XI.   GENERAL PROVISIONS

A.  Effect  of  Settlement

          95.   Compliance  with the terms of this Consent Decree

does not guarantee  compliance  or excuse noncompliance with any

applicable  Federal,  State  or local law or regulation,  except as

set forth below.

          96.   Satisfaction of all of  the requirements of this

Consent Decree  constitutes full  settlement  of  and shall resolve

all civil liability  of GM  to the United States for (l)  the claims

alleged in  the  Complaint and (2)  all claims under Title II of  the

Act, 42 U.S.C.  §§  7521-7590,  and-regulations  promulgated

thereunder based on  alleged violations  occurring prior to lodging

of this Consent Decree (i)  that  the heavy-duty engines  covered by

this Decree are equipped with  timer-based fuel  strategies  that

are prohibited parts or components under Section 203(a)(3)  of  the

Act, 42 U.S.C.  § 7522 or defeat  devices as  defined in 40  C.F.R.

§§  86.082-2 or 86.094-2;   (ii)  that the LDVs covered by this

Decree are equipped with climate  control or air

conditioning-based fueling strategies that are  prohibited parts

or components under Section 203(a){3} of the Act, 42 U.S.C.

§ 7522 or defeat devices as defined in 40 C.F.R.  §§'86.082-2 or

86.094-2;  and (iii)  that arise  from the certification and/or

auditing of, responses to information requests  regarding, or the

incorporation in,  and/or reporting of,  alleged accessory or
          ***
timer-based AECDs and/or defeat devices in,  GM's MY 1993-1995

                                39

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1.9L vehicles, MY 1994-1995 3.4L vehicles, MY 1993-1995 4.0/4.6L
vehicles, MY 1991-1992 4.5L vehicles, MY 1991-1995 4.9L vehicles
and MY 1989-1996 Subject HDGEs.
          97.  EPA shall not base a determination under Section
207(c)(1) of the Act, 42 U.S.C. § 7541, that any class or
category of the Subject Vehicles/Engines does not conform to the
regulations prescribed under Section 202 of the Act, 42 U.S.C. §
 7521, or a determination under Section 206 of the Act, 42 U.S.C.
§ 7525,  to suspend or revoke a certificate of conformity,  on the
observed or projected emission performance of the 4.9L vehicles
or the Other LDVs with air conditioning or climate control
accessories engaged,  or on the observed or projected emission
performance of the MY 1989 through 1996 Subject HDGEs except by
using the mapping procedure used by GM during certification of
those engines.
          98.  GM has indicated its intention to proceed
expeditiously to satisfy the requirements of the Act and of this
Consent Decree and may have taken certain measures,  such as
completing validation testing, submitting a remedial campaign
plan, and submitting an emission remedial project plan, prior to
the date of entry of this Consent Decree.  Nothing herein is
intended to require that such actions be repeated after entry of
the Consent Decree,  provided that such measures fully comply with
the requirements of this Consent Decree.
                                40

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B.  Third Parties
          99.  This Consent Decree does not.limit, enlarge or
affect the rights of any party to the Consent Decree as against
any third parties.
C.  Costs
          100.  Each party to this action shall bear its own
costs  and attorneys' fees.
D .  p^H Ij. c pQC'V1**" t S
          101.  All information and documents submitted by GM to
the United States pursuant to this Consent Decree shall be
subject to public inspection, unless identified and supported as
confidential business information by GM in accordance with 40
C.F.R. Part 2.
E.  Public P""""*"*-**? Protection of Public Interest
          102.  The parties agree and acknowledge that final
approval by the United States and entry of this Consent Decree is
subject to the requirements of 28 C.F.R. § 50.7.'  The United
States also may withdraw or withhold its consent if the United
States receives information during the public comment period that
leads it to believe that GM has not acted in good faith in
performing or evaluating validation testing of the Remedy PROMs
or in proposing any modification of the Remedy PROMs pursuant to
Paragraphs 44-47 and 52 of this Consent Decree.  GM consents to
the entry of this Consent Decree without further notice.
                                41

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          103.  In addition to any other requirement of  this
Consent Decree, GM shall submit to EPA written quarterly progress
reports that:   (a) describe the actions which have been  taken
toward achieving compliance with this Consent Decree during the
previous quarter; (b) include a summary of any validation testing
conducted by GM; (c) include the information required by
Paragraphs 53 and 54 of this Consent Decree; (d) include a
summary of any tests conducted pursuant to the emissions test
program and the results thereof; (e)  describe all actions,
including, but not limited to, actions relating to implementation
of the remedial campaign plan, the emission remedial project
plan, and the emissions test program, which are scheduled for the
next six weeks; and  (f)  include the current remedial campaign
capture rate.  GM shall submit an initial progress report to EPA
within 45 days of the close of the quarter during which  this
Consent Decree is entered and within 15 days of the close of each
quarter thereafter,  through and including the quarter in which
this Consent Decree is terminated pursuant to Section XII of this
Consent Decree.  If requested by EPA, GM shall provide briefings
for EPA to discuss the progress ,of implementation of this Consent
Decree.
          104.  Each submission, report,  and plan required by
this Consent Decree shall be accompanied by a transmittal letter
refereneing'the appropriate Paragraph of this Consent Decree or
                                42

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the appropriate portion of an applicable plan.  GM shall, through
a duly authorized representative having knowledge of the report's
or submission's contents, sign and certify under 28 U.S.C. § 1746
that the information contained in the report or submission is to
the best of the representative's knowledge and belief true,
accurate, and complete.  GM shall not object to the admissibility
in evidence of any such reports in any proceeding to enforce this
Consent Decree.
          105.  Compliance with the reporting and notification
requirements of this Consent Decree shall not relieve GM of its
obligation to comply with any other reporting and notification
requirements imposed by any applicable federal, state,  or local
laws, regulations, or permits.
          106.  Unless otherwise provided herein,  reports,
submissions, notifications to, or communications with the United
States, EPA, or GM shall be deemed submitted on the date they are
postmarked and sent by first class mail,  overnight receipt mail
service or by certified or registered mail,  return receipt
requested.  Except as otherwise provided herein, when written
notification to or communication with the United States,  EPA,  or
GM is required by the terms of this Consent Decree,  it shall be
addressed as follows:
                                43

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     As  to  the  United States:

     Chief
     Environmental Enforcement  Section
     Environment and  Natural Resources Division
     U.S. Department  of Justice
     P.O. Box 7611, Ben Franklin Station
     Washington, D.C.  20044
     As to the U.S. EPAr

     "Director, Air Enforcement Division  (2242A)
     U.S. Environmental Protection Agency
     401 M Street, S.w.
     Washington, D.C. 20460

     As to General Motors Corporation;

     Practice Area Manager
     Environmental and Energy Section
     Legal Staff
     General Motors Corporation
     Room 12-149 (Mail Code: 482-112-149)
     3044 West Grand Boulevard
     Detroit, Michigan 48202

     Director
     Vehicle Emissions and Fuel Efficiency
     Environmental and Energy Staff
     General Motors Corporation
     Room 12-268 {Mail Code 482-112-267)
     3044 West Grand Boulevard
     Detroit, Michigan 48202

          107.  Any party may change the address for providing

notices to it by serving all other addressees identified above

with a notice setting forth such new address.

G.  Modification
                               44

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           108.   There shall be no modification of this Consent
Decree  without  written approval by both parties to this Consent
Decree  and Order of  the Court.
H.  Continuing  Jurisdiction
           109.   The  Court  retains jurisdiction of this case after
entry of  this Consent Decree to enforce compliance with the terms
and conditions  of this Consent  Decree and  to  take any  action
necessary or appropriate for its  interpretation,  construction,
execution,  or modification.   Any  party  may apply  to the Court  for
any relief  necessary  to construe  or effectuate this Consent
Decree.
I..  Confidential Business  Information
          110.  The United States agrees to lodge Appendices A
and B (each reflecting the software and calibration changes to be
included  in the Remedy PROMs) under seal to protect GM's claim to
protection  of the information contained therein as  confidential
business  information pending  the Court's determination  that
sealing these documents is appropriate.   The United States agrees
that these  documents contain confidential business  information
under applicable law and will not object to GM's motion for
filing of Appendices A and B under seal  upon entry of this
Consent Decree by the Court.  The parties agree that general
descriptions of the contents of documents lodged or filed under
seal shall be included in publicly filed or available materials
                               45

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as necessary to fully describe  the settlement set  forth  in  this
Consent Decree.
J.   Other Laws
          111.  Except as provided in Paragraph 96 of this
Decree,  (1) nothing in this Consent Decree shall relieve GM of
its obligation to comply with applicable Federal, State  and.local
laws and regulations and  (2) this Consent Decree is not  intended
to release the liability, if any, of any person under criminal
law or under any Federal, State, or local law or regulation.
                        XII.  TERMINATION
          112..  This Consent Decree may terminate upon further
order of this Court six months after GM certifies that it has (a)
paid in full the civil penalties and any accrued interest imposed
by this Consent Decree;  (b)  paid in full any stipulated penalties
imposed by this Consent Decree;   and (c) completed all other
requirements of this Consent Decree.   If the United States does
not dispute GM's certification,  then the parties shall",  within 90
days, jointly petition the Court for termination of this Consent
Decree.  If the United States disputes GM's certification,  then
the parties shall,  within 30 days of certification, enter dispute
resolution under Section X.
                               46

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United. States v. General Motors Corporation Consent Decree  --
Signature Page	

FOR PLAINTIFF, UNITED STATES OF AMERICA


                                                    ///rV*r
                                             Dated:
Lois 3. Jschiffer
Assistant Attorney General
Environment and Natural Resources Division
U.S. Department of Justice
10th & Pennsylvania Avenue, N.W.
Washington, D.C. 20530
Bruce C. Buckheit
Senior Counsel
Environment and Natural Resources Division
U.S. Department of Justice
1425 New York Avenue,  N.W.
Washington, D.C. 20005
                                             Dated
                                             Dated:
Thomas P. Carroll (Bar No.  388593)
Trial Attorney, Environmental Enforcement  Section
Environment and Natural Resources Division
U.S. Department of Justice
1425 New York Avenue,  N.W,
Washington, D.C.  20005
                               47

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United States v. General Motors Corporation Consent Decree
Signature Page	  _

ERIC H. HOLDER, JR.
United States Attorney
District of Columbia
                                             Dated:
Mark Nagle (Bar No. 416364)
Dan Van Horn (Bar No. 324092)
Assistant United States Attorneys
Judiciary Center Building
555 Fourth Street, N.W.
Washington, D.C. 20001
(202) 514-7700
                               48

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United  States v.  General  Motors  Corporation Consent Decree --
Signature  Facie
                                              Dated:
Steven
Assistant"Administrator
 Office of Enforcement
 and Compliance Assurance
U.S. Environmental Protection Agency
401 M Street, S.W.
Washington,/DTCx 20460
                                        Dated:
E. Bruce Fergifsson
Attorney-Advisor
Air Enforcement Division
Office of Regulatory Enforcement
U.S. Environmental Protection Agency
401 M Street, S.W.
Washington, D.C. 20460
                                        Dated:  ///?0
David J. 'Gottfried (Bar No. 420801)
Attorney-Advisor
Air Enforcement Division
Office of Regulatory Enforcement
U.S. Environmental Protection Agency
401 M Street, S.W.
Washington, D.C. 20460
                               49

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NOV-30-95 THU 16:02      LEGAL STAFF               FAX NO. 13135562199             P. 02/02
     KU-38-1995  12:11-       GD8C URSHINOTON EC                  202 off? 0539  P.a5Bx*E0
         United States v.  General Motors Corporation Consent Decree
         Signature Page	_	•


         FOR DEFENDANT, GENERAL MOTORS CORPORATION
             	          Dated:
              A. Hester
         Legal Staff
         General Motors Corporation
         304« w. Grand  Blvd.
         Detroit. Michigan 48202
         David w. Schnut^jf    f
         Legal Staff         U
         General Motors Corporation
         3044 w. Grand Blvd.
         Detroit, Michigan  43202


              So entered  in accordance with the foregoing this 	  day of
         	  ,  1996.
                                        United States  District Judge
                                          50
                                                                     TOTAL P.£350

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    Description of Appendix A and Appendix B to Consent Decree

       The Appendices describe  in excess of  two dozen specific
 changes to the software and  calibration in  different sets  of 4.9L
 Cadillacs.   These changes  include:

 (a)  elimination of the previously employed  enrichment based on
 whether the climate control  button has  been engaged.  To prevent
 the  possibility of low speed stalls,  some enrichment is retained
 when the air conditioning  is actually engaged  and the vehicle is
 operating at low speeds;

 (b)  reducing the amount of enrichment added when  the air
 conditioning is operating  and  the vehicle speed is low, but under
•conditions of temperature  and  load where the full enrichment is
 not  needed;  and

 (c)  reducing the amount and  duration  of a fuel enrichment  that
 had  been added just  prior  to engagement of  the air conditioner
 compressor.

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11/28/95   19:03   Q202 879 5200  4202    KIRKLAND&ELLIS                    @ 002/005
                    Appendix C — Emissions Remedial Projects

               Following  is the  list  of possible  emissions remedial
    projects developed by General Motors, and the United States during
    preparation of the Consent Decree.   Pursuant to  paragraph 60 of the
    Decree,  either party may suggest additional projects for inclusion
    in this Appendix.

          l.    Accelerated vehicle  retirement projects.   Accelerated
    vehicle  retirement  projects  would  involve  the  purchase  and
    scrappage  of  older  model-year  vehicles.     Eligibility  for
    participation in the program would not be limited to GM vehicles.
    Criteria for purchasing the vehicles would ensure that the vehicles
    retired were  from the current in-use vehicle population.

          2.   Off-hiohwav alternative-fual_p_r_Qpul9ion systems.    Under
    this  project,  off-highway alternative-fuel  technologies would be
    developed and produced for use on vehicles that are currently not
    regulated in  the -same manner  as other  mobile sources,  such as
    airport service vehicles.

          3.    High-mileaae emissions  control  sya±eni_^repairs.   This
    project  would provide free replacement of  certain emissions control
    components on  high-mileage vehicles  at   dealerships.   The  free
    replacements would be performed at  the same time the vehicles were
    brought in for service for other reasons.  The  replacements would
    be made at  the  vehicles  owners'  option.    The  costs  of  the
    replacement would be paid by GM.

          4,    Noble-metal catalytic coatings r for  vehicle  radiators*
    Under this project, vehicles would be equipped with radiators that
    had been treated with noble-metal formulations designed to promote
    ozone reduction.   The  vehicles that  would be  included in  the
    program  would be vehicles registered or  normally operating in ozone
    nonattainment  areas.

          5.   Accelerated o£f-road engine retirement projects.   Under
    this  project,  older model-year equipment powered by small gasoline
    engines  (such as lawnmowers and generator  sets)  would be purchased
    for scrappage.  Equipment owners would receive cash  payments  for
    old equipment or credit towards hew equipment meeting the emissions
    standards for such equipment that  begin to take effect in 1997.

          6.   Alternative-fuel  achool  buses or vehicles..   Under this
    project, funds would  be provided to local governments to obtain
    alternative-fuel school buses or other vehicles.  The program would
    be focussed on ozone or carbon monoxide nonattainment areas.

          7,   Advanced vehicle battery technology project.   under this
    project, vehicles equipped with battery technologies that  meet or
    exceed the U.S. Advanced Battery Consortium criteria for electric
    vehicle  powerplant systems would be deployed in  ozone nonattainment
    areas."  The batteries would employ technologies other than lead-
    acid battery  technology.

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    United States v. General Motors Corporation Consent Decree
                            Appendix D
Overview
This document outlines the test program to be utilized to evaluate
the  emissions ' impact  of  any  accessory-  or  timer-based  fuel
enrichment calibration strategies that are used in the following. GM
light  duty vehicle engine  families from  the  1997  to 1999 model
years:

               VGM1.9V8GKEK  (1997 MY  Engine  Family Name)
               VGM1.9VJGKEK  (1997 MY  Engine  Family Name)
               VGM4.6VJGFEK  (1997 MY  Engine  Family Name)

The general form of this proposal is  a process for:

     1.   Defining the timer- based  fuel enrichment strategies used
          in each of the engine families which are subject to this
          agreement.

     2.   Selecting the test vehicles  and  test process to be used
          to  determine  the  emissions  impact  of   each of  the
          accessory- and timer- based  enrichment strategies.

     3.   Conducting the vehicle tests and analyzing  and reporting
          the results to the EPA.

The detailed requirements for  each  of the above deliverables are
defined in the following sections of the document.

Defining Timer-Based Fuel Enrichment Strategies

For the purpose  of distinguishing  the relevant  timer-based fuel
enrichment strategies which are included in this test  plan from the
wide range of time-based or time-correlated features and algorithms
necessarily existent in a real-time  computer  based control system,
GM will use the following definition of timer  based fuel enrichment
strategies:

     1.   The strategy has the effect of shifting the control of
          fuel delivery from a stoichiometric or closed loop mode
          to a mode of  commanded  enrichment  from the otherwise
          applicable  A/F ratio, where additional  fuel  will  be
          delivered,   but  does not  include periodic  closed loop
          variations  in  commanded  A/F ratio that are a  part  of
          normal closed loop operation.

     2.   The strategy uses  as  an integral  component of its design
          the monitoring  and  accumulation of time   intervals  or
          counts during which one or more other sensed parameters,
        .  including throttle position, manifold  pressure, engine
          speed,  vehicle speed, transmission  ratio, engine airflow

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                    Light Duty Vehicle Evaluation Program
           rate,  and coolant temperature, transition to  or remain
           within calibrated operating ranges.

     3.    The  strategy  links the  enablement  or disablement of the
           commanded enrichment mode to a timer counting up to or
           down from a calibrated  threshold value  for the timer or
           counter being monitored or accumulated.

GM  will  meet  with  designated EPA  representatives  to  review  the
pertinent  timer-based  fuel  enrichment calibration  strategies
included in each of the engine families  which  are subject  to this
agreement.   At  least  one month  prior to this meeting,  GM  will
provide to EPA the Fuel Control Definition section of the Software
Functional Definition  (if such exists) or the nearest equivalent
thereto and the  corresponding software code and calibrations  for
each of  the subject engine  families.   The rules  pertaining  to
confidential business information found  at 40  CFR Part 2,  Subpart
B shall be applicable to such information provided by GM.   GM will
provide a  copy of all material presented to  EPA at the meeting.

To the extent that GM implements new accessory  or timer-based fuel
enrichment calibration strategies on 1997,  1998 or 1999 model year
engine families  covered by  this  agreement,  GM will provide  the
above information to EPA  at the time of certification or  running
change application.


Selecting the  Test Vehicles  and Test  Processes

For each of the subject engine families, at the completion  of  the
EPA review of GM's material defining the accessory- and timer-based
fuel enrichment  strategies, GM will procure  one  (1)  production
vehicle to conduct the  testing required under this agreement.   The
vehicle will be selected on the basis of the configuration expected
to  have  the largest increase  in emissions  from accessory-  and
timer-based fuel enrichment  strategies  based  on an  engineering
evaluation of each individual enrichment strategy.  Where there is
no  anticipated difference in  emissions  impact within an   engine
family, or where a family has multiple enrichment strategies that
lead  to different   vehicle  selections  based   on  the  criterion
outlined  above,   the configuration  employed  will  be  one that
represents the  expected worst case emissions configuration based on
certification protocols.

GM will-select the  particular test vehicle which  satisfies these
requirements on  a  random  basis  from regular  production  to  the
extent that the  vehicle configuration selected is available from

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                   Ltoht Duty Vehicle Evaluation Program
regular production, as is done for Selective Enforcement Audit test
orders.   GM will  then transport the selected  vehicle to the  GM
Milford Proving Grounds  and conduct a minimum of 4,000  miles (and
no more than 4,500 miles) of AMA mileage accumulation  on  the test
vehicle for break-in purposes.

Prior to any mileage accumulation,  GM will provide  EPA with a copy
of the vehicle build manifest which describes the vehicle,  engine,
emission-control, system  and drive train.   EPA will be  allowed ten
(10) working days  to review this document.

No maintenance or adjustment to any engine or vehicle  component and
no  emission  or other  parameter  interrogation/evaluation will  be
permitted without  the  advanced approval of EPA.

Evaluation  of  the accessory-  and  timer-based fuel   enrichment
calibration strategies shall be  based on chassis dynamometer and
on-road emissions  testing,  using the same vehicle for each engine
family.   GM  will  commence  LDV dynamometer testing  under   this
agreement within 28 days of  the completion of all on-road testing.

On-Road Testing

The following on-road test process will be used for  each vehicle  in
the test program:

     •    Testing  will be conducted during the  months of July  or
          August  at  daytime periods  of  peak temperature and
          relatively unimpeded traffic flow (nominally 10:30  am  to
          3:30 pm)  with no visible moisture on pavement.

     •    A video of the test  run will be recorded which shows the
          prevailing traffic conditions ahead of the  test vehicle.

     •    The  test vehicle will be driven  over the  road  route
          described in Attachment I.

     •    Prior to conducting the  road  test,  the vehicle will be
          driven over  the road route  (preconditioned)  and soaked
          for  12 to  36 hours to incorporate  a  cold  start in the
          emission test.   The onboard measurement system may be
          operated  during  the  preconditioning  drive  to  verify
          proper operation  of  the system  and the  onboard system
          should not be altered after preconditioning.  A copy of
       "*  any data  recorded during preconditioning must be provided
          to EPA.

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         Light Duty Vehicle Evaluation Program
For    vehicles   .with    accessory-based    enrichment
calibrations,  one  run over the test route will be  made
with accessories off and one run will be made with the
relevant accessory engaged.  Vehicles without accessory-
related enrichment strategies will make  one  run through
the test route.

The vehicle  will be  driven to match prevailing traffic
flow at  the  time of  the  test,  and will be  operated in
compliance with all  applicable motor vehicle codes  and
regulations.    Traffic  permitting,   the vehicle  will
maintain the posted speed limits or be operated at wide-
open throttle in an attempt to maintain the posted speed
limits.

The driver is not to  have access to any displays or other
feedback of vehicle operating parameters during the  road
testing except those  normally provided to the purchaser
of the vehicle.

Driving of test vehicles may be conducted by GM employees
or GM contractors,  at GM's option.

On-road  emissions  will   be  measured using a   system
comparable to the EPA portable emissions  testing system,
as defined in Attachment II.  The system assembled  by GM,
or  its  contractors,  will  be  subject  to   review  and
approval by EPA.

The  engine  data  and emission measurements  will  be
simultaneously  recorded   at  1 second  intervals   in an
electronic format {e.g.,  floppy disk) and made available
to EPA on the internet by midnight of the same day  (may
be  accomplished by  posting  information on a GM  web
accessible to EPA)  or by providing it to a designated EPA
representative if present on the test site.

For all  on-road  testing, GM or  its contractor will
document the  date, start time, GVW,  humidity and starting
ambient temperature (humidity and temperature  as measured
at the  nearest airport) ; and record at l Hz or a multiple
integral of  l Hz the throttle  position,  engine   speed,
vehicle speed, MAP,  MAT,  measured  A/F ratio, the block
learn cell, timer counts,  and standard data  format from
the EPA portable emissions testing system,  and catalyst
front bed temperature.

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                     Light Duty Vehicle Evaluation Program
       •    An  EPA representative will  be  available  to  approve
            variances from the test plan  (in writing) and to verify
            that-the times and ambient conditions are acceptable.

  GM may,  at its option,  hire a contractor to perform any of its on-
  road testing requirements under this agreement.  In such a case, GM
  will incorporate this test  plan  into  the scope of work  and provide
  a copy of  this Consent  Decree and this appendix to  the  contractor.
  GM will  provide EPA with a scope of  work document setting out in
  detail  all  test  procedures, equipment  to  be  used,  and  other
  information necessary  to assure compliance with  this  agreement.
  SPA shall have  15 :days to  review  and approve the scope  of work
  document.   If EPA disagrees, it  will notify GM within  15 days and
  submit proposed modifications.  If  GM accepts these modifications
  it  may   contract  the  on-road   testing  out  to  a  third-party
  contractor.   Any further disagreement regarding this issue may be
  submitted  by either party to dispute resolution under Section IX of
  the Consent  Decree.

  Substantial  completion of the EPA-approved work plan by GM or its
  contractors  or both shall satisfy GM's obligations with respect to
  the on-road  testing under this portion of the Decree.

-  Dynamometer  Testing of  Accessory-Based Enrichment

  The following evaluation process  will  be  used to evaluate accessory
  based fuel enrichment calibration strategies:

       •    For all  accessory-based  fuel  enrichment strategies,
            conduct one (l) standard FTP baseline test pursuant to 40
            C.F.R.  Part  86   and one  (1)   cold US06 at  76°F +/-  2
            degrees.

       •    For air  conditioning   accessory-based  fuel  enrichment
            strategies, conduct a standard FTP and one (1) cold US06
            at 76°F +/- 2 degrees,   except  that  the air  conditioning
            system controls  will  be  set  as  follows:   vehicles
            equipped with climate  control  systems, mode  setting  to
            "MAX" cooling, temperature setting to lowest temperature,
            and fan speed to  "AUTO";  vehicles equipped with manual
            air conditioning  systems,  mode setting to "MAX" cooling,
            temperature set to lowest temperature,  and fan speed set
            to second-lowest  speed  setting on fan switch  or higher.
            .•"*
       • "  For accessory-based fuel enrichment strategies other than
            air conditioning,  an   engine   family  subject  to  this
            agreement  equipped with one  or more driver  selectable

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                   Light Duty Vehicle Evaluation Program
          accessories  that  have  been  defined  as  an  enabling
          component   in  the   accessory-based  fuel   enrichment
          strategies for  the engine  family will be evaluated.   An
          additional standard FTP will be conducted for each of the
          accessories meeting the above condition,  except that the
          accessory will  be operated in a  representative fashion
          during the emissions  test.

     •    At least two replicates of  each of the baseline and "A/C-
          on"  or other  "accessory-on" tests  will be  conducted.
          During all emissions  tests,  second by second measurements
          of  HC,  CO, NOx,  measured  A/F ratio, MAP  and MAT  and
          monitoring of throttle position and engine speed shall be
          recorded in  addition to bag samples taken.   All  tests
          conducted  will  simultaneously use  the  portable data
          acquisition system.

Dynamometer Testing of Timer-Based Enrichment

For those vehicles with  timer-related enrichment  strategies,  GM
will conduct testing over the US06 cycle.  Where US06 data on  the
relevant engine families exists  through the FTP revision  process,
that data will be substituted for this  testing requirement  and
provided to  EPA at  the  same  time  the review  outlined above  is
provided.

The following  general  chassis  dynamometer  test sequence will  be
used to conduct the timer-related based fuel enrichment calibration
strategy testing:

     •    Conduct  an  FTP  in  accordance  with  40  CFR  Part   86
          (baseline test).

     •    Drain the vehicle fuel tank.

     •    Fill to 40% capacity with 9 psi  RVP Federal certification
          fuel.

     •    Soak vehicle for 12 to 36 hours at 68°F to 86°F.

     •    Drive one LA4 warmup cycle.

     •    Drive one US06 preconditioning cycle.
           ,*•
     • "  Drive two US06 emissions test cycles.

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                    Light Duty Vehicle Evaluation Program
      •     During all emission tests'; second by second measurements
           of HC, CO, NOx, A:F ratio,  MAP, and MAT and monitoring of
           throttle  position and engine speed shall be recorded in
           addition  to  bag samples taken.

Dynamometer Simulation of On-Road Testing

GM  will prepare  one  custom test cycle  representing the  speed,
normal road loading, acceleration and grade conditions encountered
during  the 1-75  on-road testing for the 4.0/4.6L  vehicle  and one
1.9L  vehicle  tested on-road.  For those vehicles  with accessory-
related  enrichment  calibrations,  the custom  test cycle will  be
based on  the  test  route run  made  with  the  relevant  accessory
engaged.  GM will provide EPA with a copy of its test  cycles seven
days  prior to conducting tests  over  such a cycle.

GM will conduct three tests for  each vehicle over the custom "1-75"
test  cycle designed for  each vehicle,  except that an additional
test  of  the  1.9L shall also be done with  the  A/C off .   GM will
follow the following guidelines for  such testing:

      •     For those vehicles with accessory-related calibrations,
           the relevant accessory  or accessories will  be operated
           over the cycle.

      •    During the chassis dynamometer testing over the  custom
           cycles  representing  the  1-75  road  route,  GM  will
           simultaneously measure modal emissions using its standard
          modal bench  equipment and EPA's  portable testing  system
          outlined in  Attachment II.

      •    GM  will  document  the date,  start  time,  test weight,
          humidity and starting ambient temperature; and  record at
          1  Hz or  an  integral multiple  of  1  Hz the  throttle
          position,  engine speed, vehicle speed, MAP, MAT, measured
          A/F  ratio,   the block  learn cell,  timer  counts, and
          standard  data format from the  EPA  portable emissions
          testing system,  and  catalyst  front bed  temperature, in
          addition to  bag samples taken.

For future accessory-  or timer-based  fuel enrichment strategies
where the  above  test  processes would be  inappropriate,  GM  will
develop  and  conduct an  analogous  test process  to determine the
emissions impact of these strategies.

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                    Light Duty Vehicle Evaluation Program
       :incr the Tests and Analyzing and

Review of GM's material  defining the accessory-  and timer-based
fuel  enrichment  calibration strategies  and vehicle  procurement
shall  occur in time to  allow on-road  testing during the  first
Summer after  the  start of  production  of all  covered  vehicle
families.  Dynamometer testing shall be completed within 60 days of
the end of road "testing,  but may be done anytime  prior to the end
of 60  days.  Vehicle procurement will proceed within  one  month of
the  completion of  the  EPA review  of  GM' s material  defining the
accessory  based and fuel enrichment calibration  strategies.  At the
time of vehicle selection at the assembly  plant,  GM  will provide
EPA  representatives  with a  proposed  schedule for  the  mileage
accumulation and  testing phases  of  the process.

EPA representatives may make arrangements to observe any portion of
the  mileage accumulation,  any maintenance  conducted or  testing
process, scheduling such observations one week in advance of the
..observation  date.

All testing shall be done using good engineering practice to ensure
the accuracy of test results.  All on-road and dynamometer testing
shall be conducted  using  Federal  certification  fuel.   If  state or
local  regulations prohibit  or substantially interfere  with  the
dispensing of Federal certification fuel  into the test  vehicles, GM
shall promptly advise the United States, and the parties shall meet
to discuss how  to resolve the  issue.

All data shall be made available to EPA by midnight of  the  same day
on the internet (may be accomplished by posting information on a GM
web accessible to  EPA)  or by providing it to a  designated  EPA
representative  if present on the  test  site.

Except as  described in paragraph 74 of  the Consent Decree,,  this
will complete GM's  obligations under the terms  of  this test  plan.
After  all  testing  is completed,  if requested  by  EPA within  ten
working days of GM's submittal  of  test data, GM shall loan  any test
vehicles to  EPA for up to four weeks.  Otherwise, GM will be free
to reconfigure  or dispose of the  test vehicles.
                                8

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                   Heavy Duty Vehicle Evaluation Program
Overview

This document outlines the test program to be utilized to evaluate
the emissions impact of any time based fuel enrichment calibration
strategies  that are used in  the following GM heavy  duty vehicle
engine  families for model years  1997,  1998 and 1999:

                VGM4.3CPGEAE  (1997  MY Engine Family Name)
                VGM5.7CPGEAE  (1997  MY Engine Family Name)
                VGM7.0CC5GAA  (1997  MY Engine Family Name)
                VGM7.4C5GAEA  {1997  MY Engine Family Name)
                VGM7.4C8GAEA  (1997  MY Engine Family Name)

GM will certify that  none  of the HDGE families  covered by  the
Consent  Decree  has  accessory  based fuel enrichment strategies.

GM's  future product  plans  may  result in some of these engine
families being dropped from production or combined prior to the end
of this  agreement.

The general form of this program is  a  process  for:

     1.   Defining the timer-based fuel enrichment  strategies used
          in each of the engine families which are  subject to this
          agreement.

     2.   Selecting the test engines and test processes to be used
          to determine the emissions impact of each of the counter
          or timer-based enrichment  strategies.

     3.   Conducting  the tests  and analyzing and reporting the
          results to the EPA.

The detailed requirements  of each of  the  above deliverables are
defined  in the  following sections of this document.

Defining the Timer Based Fuel Enrichment Strategies

For the  purpose of distinguishing  the relevant timer-based fuel
enrichment strategies which are included in this test plan from the
wide range of time-based or time-correlated features and algorithms
necessarily existent in a real-time computer based  control system,
GM will^use -the  following definition of timer based  fuel enrichment
strategies:

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                   Heavy Duty Vehicle Evaluation Program
      1.   The  strategy has the effect of shifting the  control of
          fuel delivery from a stoichiometric or closed loop mode
          to  a mode  of commanded enrichment from the  otherwise
          applicable  A/F  ratio,  where  additional fuel  will  be
          delivered,  but does  not include  periodic  closed  loop
          variations  in commanded A/F  ratio that are  a part  of
          normal closed-loop operation.

      2.   The  strategy uses as an integral component of  its  design
          the  monitoring and accumulation of  time  intervals  or
          counts during which one or more other sensed parameters,
          including throttle position,  manifold pressure,  engine
          speed, vehicle speed, transmission ratio, engine airflow
          rate, and coolant  temperature, transition to or  remain
          within calibrated  operating ranges.

      3.   The  strategy  links  the enablement or  disablement  of the
          commanded enrichment  mode  to  a timer counting up to  or
          down from a calibrated threshold value  for  the  timer or
          counter being monitored or accumulated.

GM will  meet  with designated EPA representatives to review  the
pertinent  timer-based  fuel  enrichment  calibration  strategies
included in each of the engine  families which are subject to  this
agreement. At  least  one month prior to  this meeting,  GM  will
provide to EPA the  Fuel Control Definition section of  the Software
Functional Definition  (if  such exists)  or the nearest equivalent
thereto and the corresponding software  code and calibrations for
each  of  the subject  engine   families.   The  rules pertaining  to
confidential business information found at 40 CFR Part 2, Subpart
B will be applicable  to any  information provided by GM.  GM  will
provide a copy of all material  presented to EPA at the meeting.

To the extent  that GM implements new timer-based fuel enrichment
strategies on future model  year engines  covered by this agreement,
GM will  provide  the  above  information to  EPA  at  the  time  of
certification  or running change application.


Selecting the Test Vehicles and Test Processes

For each of the subject engine families,  GM will procure one  (1)
production .-vehicle  to  conduct the  testing   required under  this
agreement.  For the VGM5.7CPGEAE engine family, GM will provide two
(2)   production-  vehicles,   one   equipped   with  an  automatic
transmissions  and one  equipped with a manual transmission.   For


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                   Heavy Duty Vehicle Evaluation Program
those engine families which are sold by 6M in complete vehicles,  GM
will select a complete vehicle to represent the engine family. For
those  engine families  which are only  sold by  GM in  incomplete
chassis  or cab-chassis  configurations  for completion  by a  body
builder,  GM will  procure a complete vehicle  incorporating the
selected  engine  family.   The complete vehicle selected will  be a
configuration suitable for the on-road testing required under this
agreement.   Selection will be  subject  to  review and approval  by
EPA.

The vehicle  for  each family to be  tested will be selected on the
basis of the configuration expected  to have the largest increase  in
emissions  from timer-based  enrichments  based on  an engineering
evaluation  of  each individual  enrichment  strategy,  including  an
assessment  of  the  impact of  transmission  type  (except  for the
VGM5.7CPGEAE  engine  family).    Where  there  is  no  anticipated
difference in emissions impact within an engine family,  or where a
family has multiple  enrichment strategies  that lead to different
vehicle  selections based  on  the  criterion outlined  above,  the
configuration employed will  be one that represents  the expected
worst  case  emissions  configuration based  on. vehicle  and engine
certification protocols.

GM will transport  to or take delivery of the selected vehicle at
the GM Milford Proving Grounds  and conduct a minimum of 4,000 miles
of AMA mileage accumulation  for break-in purposes.   Prior to any
mileage accumulation, GM will provide  EPA with the build manifests
for the vehicle or  incomplete chassis,  which describes the vehicle,
engine, emission control  system, and  drive  train,  and all engine
and emission-control performance data acquired by GM for the  test
engine.  EPA will be allowed ten (10)  working days to review  this
document.

Evaluation of  the  timer-based fuel enrichment strategies in the
vehicles  shall  be  done  on  the  basis of on-road  and,  where
applicable, chassis dynamometer testing of the selected vehicle.

On-Road Vehicle Testing

The following on-road test process will be used for each vehicle in
the test program:

     •    Testing will be conducted during  the months  of  July or
          August  at  daytime  periods  of  peak  temperature  and
          relatively unimpeded traffic flow  (nominally 10:30 am to
          3:30 pm)  with no visible  moisture on pavement.


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         Heavy Duty Vehicle Evaluation Program
The vehicle will be loaded to at least 95% GVWR.   If the
worst  case  vehicle  selected  is  available  with  air
conditioning, the  vehicle shall be tested with the air
conditioner in operation.

A video of the test run will be recorded which shows the
prevailing traffic conditions ahead of the test vehicle.

The  test  vehicle  will be  driven over  the  road  route
described in Attachment I.

Prior to"conducting  the road test, the vehicle will be
driven over the  road route (preconditioned)  and  soaked
for  12 to  36  hours to  incorporate a  cold start  in the
emission test.   The onboard measurement system may be
operated  during the preconditioning  drive  to   verify
proper operation of  the system  and the onboard  system
should not be altered after preconditioning.  A copy of
any data recorded during preconditioning must  be provided
to EPA.

Four tests will be run over the road route per vehicle,
with at least one from a cold start.

The vehicle will be  driven to  match prevailing traffic
flow at the time of  the test, and will be operated in
compliance with  all  applicable motor vehicle codes and
regulations.     Traffic permitting,   the vehicle  will
maintain the posted speed limits or be operated at wide-
open throttle in an attempt to  maintain  the posted speed
limits.

The driver is  not to have access to any displays or other
feedback of vehicle operating parameters during the  road
testing except those normally provided to the purchaser
of the vehicle.

Driving of test vehicles may be conducted by GM employees
or GM contractors,  at GM's option.

On-road  emissions  will  be measured  using a   system
comparable to the EPA portable  emissions  testing system,
as defined in  Attachment II.  The system assembled  by GM,
or  its contractors,  will  be  subject  to  review and
approval  by EPA.
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                   Heavy Duty Vehicle Evaluation Program
     •    The  engine  data  and  emission'  measurements  will  be
          recorded  at  1 second intervals in an electronic  format
           (e.g., floppy disk) and made available to EPA by midnight
          of the same  day  on the  internet  (may be accomplished by
          posting information on a GM web accessible to EPA) or by
          providing it  to  a designated  EPA  representative  if
          present on the test site.

     •    For  all  on-road  testing,  GM or its  contractor  will
          document the date,  start time, GVW, humidity and starting
          ambient temperature (humidity and temperature as measured
          at the nearest airport) ; and record at 1 Hz or a multiple
          integral  of  1 Hz  the  throttle position,  engine  speed,
          vehicle speed, MAP, MAT,  measured A/F ratio,  the block
          learn cell,  timer  counts, and  standard data  format from
          the EPA portable emissions  testing system, and catalyst
          front bed temperature.
                                                      «•
     •    An  EPA representative will  be  available  to approve
          variances from the  test plan (in writing) and  to  verify
          that the times and ambient conditions are acceptable.

GM may, at its option,  hire a contractor  to  perform any of its on-
road testing requirements under  this agreement.  In such a case, GM
will incorporate this test plan into the  scope of work and provide
a copy of the Consent Decree and this appendix to the contractor.
GM will provide EPA with a scope of work document setting  out in
detail  all test  procedures,  equipment  to be  used,   and   other
information necessary  to assure compliance with  this agreement.
EPA shall  have  15 days to  review and approve the  scope of  work
document. If EPA disagrees,  it  will  notify  GM within 15 days  and
submit proposed modifications.  If GM accepts these modifications
it  may  contract  the  on-road  testing  out  to  a . third-party
contractor.  Any further disagreement regarding this issue may be
submitted by either  party to dispute resolution under Section IX of
the Consent Decree.

Substantial completion of the EPA approved work plan by GM or its
contractors or both shall  satisfy GM's  testing  obligations  with
respect to the on-road testing under this portion of the Decree.
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                   Heavy Dutv Vehicle Evaluation Program
Chassis Dynamometer Testing

For  the  4.3L,  the one of  the  two  5.7L engines which will not  be
engine dynamometer tested, and the  one  of the two  7.4L  vehicles
which the parties have agreed to be chassis tested, GM will conduct
three tests over the US06 cycle.   The dynamometer will be set to a
loading equivalent to  95%  of GVWR, and the vehicle will be tested
at that condition, with brief exceptions where the loading exceeds
the  capability of  the  dynamometer for either .of  the test cycles.
During those periods,  the  dynamometer  load will be at the maximum
capability.  In that case,  the  vehicles will be loaded to the  point
of the dynamometer's road-force capability.  In addition,  for each
chassis-testable  engine  family,  GM  will  prepare  one custom test
cycle representing the speed, normal road loading,  acceleration and
grade conditions encountered on the highest CO run on the  1-75 on-
road testing.  GM will provide EPA with a copy of its  test cycles
seven days prior  to  conducting tests over such a  cycle.  GM will
conduct  three  tests for  each chassis-testable vehicle  over the
custom "1-75"  test cycle designed for each engine  family.   GM will
simultaneously measure modal  emissions using its standard  modal
bench  equipment and  EPA's portable  testing system outlined  in
Attachment II.  GM will document the date, start time, test weight,
humidity and starting ambient temperature  (humidity and temperature
as measured at the nearest local  airport) ; and record at 1 Hz or a
multiple  integral of  IHz the throttle  position,  engine speed,
vehicle speed, MAP, MAT,  measured A/F ratio,  the block learn  cell,
timer  counts,  and  standard data  format, from the  EPA  portable
emissions testing  system,  and  catalyst front bed  temperature,  in
addition to bag samples taken.

Engine Dynamometer Testing;

For the 7.OL engine,  the 7.4L engine which is not chassis testable,
as well as for one engine from the VGM5.7CPGAE family, which EPA
will choose,  GM will conduct engine dynamometer testing on one (1)
engine from  each  family.   GM will  conduct  one  run of  the FTP
transient HDGE test cycle for each engine  family as a baseline.   GM
will document  the date, start  time, humidity and  starting ambient
temperature; and record at 1 Hz or a multiple integral of IHz the
throttle position, engine speed,  MAP, MAT, measured A/F ratio, the
block learn cell,  timer counts, and catalyst front  bed temperature,
in addition to bag samples taken.
           _-••
     Immediately following the FTP transient  test,  GM will conduct
a series of  steady state tests that   will,  for each timer-based
enrichment strategy identified by  GM during its review with EPA,


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                   Heavy Duty Vehicle Evaluation Program
trigger  the timer-based enrichment and hold this state  until  the
timer has timed-out and for 30 seconds after the time has elapsed.
If multiple time-down rates  exist,  the  above-procedure is  to  be
replicated  for each time down rate.  GM will provide a plan of  the
test cycle  necessary  to achieve the steady state conditions that
will  trigger these  enrichments  at the  time  of  the  enrichment
strategy review.   EPA will have  15  days in which to  review this
cycle and either approve GM's plan or deny the plan  with suggested
modifications.   During  the engine dynamometer testing, GM will
simultaneously measure modal emissions  using its standard  modal
bench  equipment  and  EPA's portable  testing  system outlined  in
Attachment  II.  GM may test certification or  FETS engines  for  the
purposes of this dynamometer testing,  but shall choose the  "worst"
case engine of all such engines available at  the time  of testing.
GM.will  document the  date,  start  time, test weight, humidity and
starting ambient temperature {humidity and temperature as measured
at the nearest local  airport) ;  and record at  1 Hz  or a multiple
integral of IHz the throttle position, engine speed,  vehicle speed,
MAP, MAT, measured A/F ratio, the block learn  cell,  timer  counts,
and catalyst  front bed  temperature,,  in addition to bag  samples
taken.

For future timer-based fuel enrichment strategies where  the  above
test processes would be inappropriate,  GM will develop  and  conduct
an analogous  test  process  to determine the  emissions impact  of
these strategies.


Conducting the Tests and Analyzing and Reporting the Results

Review  of  GM's  material  defining  timer-based fuel  enrichment
strategies and vehicle procurement shall occur in time to  allow on-
road testing during the first  Summer after the  start  of production
of all subject engine families.  Chassis  and engine dynamometer
testing  shall  be completed within 60  days of  the end of  road
testing.      For  each  of   the  subject  engine  families  at the
completion of the EPA review of GM's material defining the timer-
based fuel enrichment  calibration strategies, GM will order  one (1)
production  vehicle  to  conduct  the  testing  required  under  this
agreement within a  month of that review,  except for the 5.7 engine
family where GM will order  two (2) engines as specified earlier.

At the time~the vehicle is delivered to the Milford Proving Ground,
GM wilf provide EPA representatives with a proposed schedule for
the mileage accumulation and  testing phases  of the  process.   EPA
representatives may make arrangements to observe any portion of the


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                   Heavy Duty Vehicle Evaluation Program
 mileage   accumulation  or   testing  process,   scheduling  such
 observations one week in advance of the observation date.

 All testing shall be done using good engineering practice to ensure
 the accuracy of test  results.  All on-road and dynamometer  testing
 shall be  conducted using Federal  certification fuel.   If local
 regulations prohibit or substantially interferw with the dispensing
 of Federal  certification fuel  into  the test vehicles,  GM shall
 promptly advise the United States,,  and  the  parties shall meet to
 discuss how to resolve the issue.

 All data shall  be made available to EPA by midnight  of  the same day
 testing  is  completed on the  internet   {may  be accomplished  by
 posting information on a  GM web  accessible to EPA) or by providing
 it to a designated  EPA representative if present on the test site.

 Except as described in paragraph 74 of the Consent  Decree,  this
 will complete GM's  obligations under the terms of this test plan.
.After all testing  is  completed, if  requested by EPA within ten
 working days of GM's submittal of test data,  GM shall loan any test
 vehicles to  EPA for up to two weeks.   Otherwise,  GM will be free to
 reconfigure or dispose of the test  vehicles.
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                   Heavy Duty Vehicle Evaluation Program
 Attachment I:   Cincinnati to Kentucky Welcome Center Rest Stop
Road Route
     •    Begin  Route  in  an  available   indoor  facility  near
          Riverfront Stadium  Parking  Lot
     •    Exit parking lot onto Pete  Rose Way Westbound
     •    Follow Pete Rose Way bearing  right  onto Control to  STOP
     •    Left onto Third Street and  over suspension bridge
     •    Turn right onto  Fourth Street and bear left into entrance
          to 1-75 Southbound  north of milepost 190
     •    Follow 1-75 Southbound to first Kentucky rest  stop  just
          past milepost 178
     •    Exit 1-75 at rest stop -- end of route
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                   Heaw Duty Vehicle Evaluation Program
      Attachment  II:EPA's  Portable Emissions Testing Svatem

For  the  purposes  of  this  agreement,  the test  equipment  for
conducting the on-road emissions sampling of the vehicles consists
of the following  equipment:

1)   A "Snap-On"  Five-Gas  Analyzer--  Part  Number MT35Q5;

2)   An OTC scan  tool with domestic software cartridge;

3)   A flow  transducer mounted at the tailpipe exit with analog
output;

4)   An exhaust gas thermocouple  - "K"  type;

5)   A flow dampener;

6}   An analog to  digital converter with a parallel port  interface;

7)   A NTK or Horiba wide-range air/fuel sensor with analog output;

8)   A notebook computer for  data  collection;

9)   Software from EPA;

10)   PCMCIA serial port card; and,

11)   Hardware to connect all  of the above.
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