ENVIROTEST SYSTEMS CORP /DE/
10-Q, 1998-08-13
AUTOMOTIVE REPAIR, SERVICES & PARKING
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
 
                          WASHINGTON, D.C. 20549-1004
 
                                   FORM 10-Q
 
  /X/    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
         SECURITIES EXCHANGE ACT OF 1934
 
                  FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1998
                                       OR
 
  / /    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
         SECURITIES EXCHANGE ACT OF 1934
 
                            ENVIROTEST SYSTEMS CORP.
 
<TABLE>
<S>                              <C>                              <C>
           DELAWARE                          1-13241                        06-0914220
- -------------------------------  -------------------------------  -------------------------------
 (State or other jurisdiction              (Commission                   (I.R.S. Employer
       of incorporation)                  File Number)                Identification Number)
 
                                  ENVIROTEST TECHNOLOGIES, INC.
                     (Exact name of registrant as specified in its charter)
 
           DELAWARE                                                         36-2680300
- -------------------------------                                   -------------------------------
 (State or other jurisdiction                                     (I.R.S. Employer Identification
      of incorporation or                                                     Number)
         organization)
</TABLE>
 
                                246 SOBRANTE WAY
                            SUNNYVALE, CA 94086-4807
  (Address of principal executive offices, including zip code, of registrants)
 
                                 (408) 774-6300
              (Registrants' telephone number, including area code)
 
    Indicate by check mark whether the registrants (1) have filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrants were required to file such reports), and (2) have been subject to
such filing requirements for the past 90 days. Yes /X/  No / /
 
    Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of the latest practicable date.
 
<TABLE>
<CAPTION>
                                      OUTSTANDING AT
       CLASS OF COMMON STOCK           JUNE 30, 1998
- ------------------------------------  ---------------
<S>                                   <C>
Class A Common Stock, $0.01 par             8,842,248
 value                                         shares
Class B Common Stock, $0.01 par             1,249,749
 value                                         shares
Class C Common Stock, $0.01 par             2,026,111
 value                                         shares
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                   ENVIROTEST SYSTEMS CORP. AND SUBSIDIARIES
 
                                     INDEX
 
<TABLE>
<S>        <C>                                                                        <C>
PART I. FINANCIAL INFORMATION                                                         PAGE NO.
Item 1.    Financial Statements:
 
           Condensed Consolidated Balance Sheets:
           June 30, 1998 and September 30, 1997.....................................      3
 
           Condensed Consolidated Statements of Operations:
           three and nine months ended June 30, 1998 and 1997.......................      4
 
           Condensed Consolidated Statements of Cash Flows:
           nine months ended June 30, 1998 and 1997.................................      5
 
           Notes to Condensed Consolidated Financial Statements.....................      6
 
Item 2.    Management's Discussion and Analysis of
           Financial Condition and Results of Operations............................      9
 
PART II. OTHER INFORMATION
 
Item 1.    Legal Proceedings........................................................     14
 
Item 6.    Exhibits and Reports on Form 8-K.........................................     16
 
SIGNATURES..........................................................................     17
 
EXHIBIT INDEX.......................................................................     18
</TABLE>
 
                                       2
<PAGE>
PART I. FINANCIAL INFORMATION
 
ITEM 1. FINANCIAL STATEMENTS
 
                   ENVIROTEST SYSTEMS CORP. AND SUBSIDIARIES
                     CONDENSED CONSOLIDATED BALANCE SHEETS
                             (AMOUNTS IN THOUSANDS)
 
                                       ASSETS
 
<TABLE>
<CAPTION>
                                                                           SEPTEMBER
                                                                              30,
                                                                              1997
                                                              JUNE 30,    ------------
                                                                1998
                                                            ------------
                                                            (UNAUDITED)
<S>                                                         <C>           <C>
Current assets:
  Cash and cash equivalents...............................  $    32,702   $    18,685
  Available-for-sale securities, net......................       28,127        40,955
  Contract receivables, net...............................       11,597        11,789
  Prepaid and other current assets........................        7,145         5,911
                                                            ------------  ------------
      Total current assets................................       79,571        77,340
 
Restricted cash...........................................       19,122        19,567
Property, plant, and equipment, net.......................      203,056       188,342
Assets held under capital lease, net......................       43,587        44,564
Assets held for sale, net.................................       11,868        21,482
Other assets..............................................       25,665        28,438
                                                            ------------  ------------
      Total assets........................................  $   382,869   $   379,733
                                                            ------------  ------------
                                                            ------------  ------------
</TABLE>
 
                     LIABILITIES AND STOCKHOLDERS' DEFICIT
 
<TABLE>
<S>                                                         <C>           <C>
Current liabilities:......................................
  Accounts payable........................................  $     2,780   $     3,697
  Accrued expenses and other current liabilities..........       35,124        23,575
  Current portion of long-term debt and capital lease
    obligations...........................................        8,875        10,184
  Income taxes payable....................................           75           338
                                                            ------------  ------------
      Total current liabilities...........................       46,854        37,794
 
Senior debt, net..........................................      274,331       274,531
Long-term debt............................................       22,715        33,175
Other long-term liabilities and capital lease
  obligations.............................................       53,678        58,609
                                                            ------------  ------------
      Total liabilities                                         397,578       404,109
                                                            ------------  ------------
Stockholders' deficit:
  Common stock............................................          166           165
  Additional paid-in capital..............................       60,173        60,140
  Treasury stock, at cost.................................      (29,003 )     (29,003 )
  Cumulative currency translation adjustment..............         (137 )          43
  Unrealized loss on available-for-sale securities........           (3 )          (8 )
  Accumulated deficit.....................................      (45,905 )     (55,713 )
                                                            ------------  ------------
      Total stockholders' deficit.........................      (14,709 )     (24,376 )
                                                            ------------  ------------
      Total liabilities and stockholders' deficit.........  $   382,869   $   379,733
                                                            ------------  ------------
                                                            ------------  ------------
</TABLE>
 
   The accompanying notes are an integral part of the condensed consolidated
                             financial statements.
 
                                       3
<PAGE>
                   ENVIROTEST SYSTEMS CORP. AND SUBSIDIARIES
                CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                 (AMOUNTS IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                      THREE MONTHS ENDED   NINE MONTHS ENDED JUNE
                                                                           JUNE 30,                 30,
                                                                     --------------------  ----------------------
                                                                       1998       1997        1998        1997
                                                                     ---------  ---------  ----------  ----------
                                                                         (UNAUDITED)            (UNAUDITED)
<S>                                                                  <C>        <C>        <C>         <C>
Contract revenue...................................................  $  45,137  $  36,909  $  122,706  $  101,803
Costs of revenue...................................................     25,454     23,619      74,612      74,048
                                                                     ---------  ---------  ----------  ----------
  Gross profit.....................................................     19,683     13,290      48,094      27,755
 
Operating costs and expenses:
  Selling, general and administrative..............................      5,572      4,688      14,321      13,967
  Amortization.....................................................        583        520       1,774       1,861
  Gain on Pennsylvania settlement..................................     --         (3,950)     --          (3,950)
                                                                     ---------  ---------  ----------  ----------
  Income from operations                                                13,528     12,032      31,999      15,877
 
Other expense (income):
  Interest expense.................................................      8,478     10,262      25,707      30,104
  Interest income..................................................     (1,235)    (2,381)     (3,776)     (6,571)
  Other............................................................         12         18          60         112
                                                                     ---------  ---------  ----------  ----------
 
Income (loss) before income taxes..................................      6,273      4,133      10,008      (7,768)
  Income tax.......................................................        200     --             200      --
                                                                     ---------  ---------  ----------  ----------
 
Net Income (loss)..................................................  $   6,073  $   4,133  $    9,808  $   (7,768)
                                                                     ---------  ---------  ----------  ----------
                                                                     ---------  ---------  ----------  ----------
 
Net Income (loss) per share, basic.................................  $    0.50  $    0.25  $     0.81  $    (0.47)
                                                                     ---------  ---------  ----------  ----------
Net Income (loss) per share, diluted...............................  $    0.40  $    0.24  $     0.67  $    (0.47)
                                                                     ---------  ---------  ----------  ----------
 
Weighted average common shares outstanding.........................     12,116     16,620      12,113      16,620
                                                                     ---------  ---------  ----------  ----------
                                                                     ---------  ---------  ----------  ----------
 
Weighted average common shares outstanding and common equivalent
 shares outstanding................................................     15,216     17,241      14,542      16,620
                                                                     ---------  ---------  ----------  ----------
                                                                     ---------  ---------  ----------  ----------
</TABLE>
 
   The accompanying notes are an integral part of the condensed consolidated
                             financial statements.
 
                                       4
<PAGE>
                   ENVIROTEST SYSTEMS CORP. AND SUBSIDIARIES
                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                             (AMOUNTS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                            NINE MONTHS ENDED JUNE
                                                                                                     30,
                                                                                            ----------------------
                                                                                               1998        1997
                                                                                            -----------  ---------
                                                                                                 (UNAUDITED)
<S>                                                                                         <C>          <C>
Cash flows from operating activities:.....................................................  $    38,239  $  10,836
                                                                                            -----------  ---------
 
Cash flows from investing activities:
      Purchases of available-for-sale securities..........................................     (155,887)   (52,466)
      Maturities of available-for-sale securities.........................................      168,710      7,991
      Unrealized gains on available-for-sale securities...................................            5          3
      Proceeds from sales of property, plant and equipment................................        9,614      8,170
      Purchases of property, plant and equipment..........................................      (30,866)    (8,291)
                                                                                            -----------  ---------
Net cash used in investing activities.....................................................       (8,424)   (44,593)
                                                                                            -----------  ---------
Cash flows from financing activities:
      Proceeds from sale of Pennsylvania receivable.......................................      --          79,405
      Repayment of long term debt and capital leases......................................      (16,169)    (6,350)
      Capitalization of loan fees.........................................................      --            (208)
      Decrease in restricted cash.........................................................          445      1,432
      Other...............................................................................      --               3
                                                                                            -----------  ---------
Net cash provided by (used in) financing activities.......................................      (15,724)    74,282
                                                                                            -----------  ---------
Effect of exchange rate on cash...........................................................          (74)         5
                                                                                            -----------  ---------
Net increase in cash and cash equivalents.................................................       14,017     40,530
Cash and cash equivalents, beginning of period............................................       18,685     53,104
                                                                                            -----------  ---------
Cash and cash equivalents, end of period..................................................  $    32,702  $  93,634
                                                                                            -----------  ---------
                                                                                            -----------  ---------
</TABLE>
 
   The accompanying notes are an integral part of the condensed consolidated
                             financial statements.
 
                                       5
<PAGE>
                   ENVIROTEST SYSTEMS CORP. AND SUBSIDIARIES
 
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
1. BASIS OF PRESENTATION
 
    The condensed consolidated financial statements included herein have been
prepared by Envirotest Systems Corp. (the "Company"), without audit, pursuant to
the rules and regulations of the Securities and Exchange Commission. Certain
information and footnote disclosures normally included in financial statements
prepared in accordance with generally accepted accounting principles have been
condensed or omitted pursuant to such rules and regulations. In the opinion of
management, all adjustments (consisting of normal recurring accruals) considered
necessary for a fair presentation have been included.
 
    The accompanying condensed consolidated financial statements should be read
in conjunction with the Company's audited consolidated financial statements and
related footnotes included in the Company's Annual Report on Form 10-K for the
year ended September 30, 1997, filed with the Securities and Exchange
Commission.
 
    Certain amounts in the consolidated financial statements have been
reclassified to conform with the current period's presentation. The
reclassification had no impact on previously reported net income (loss) or
stockholders' deficit.
 
    Operating results for the interim periods shown in this report are not
necessarily indicative of the results to be expected for any other interim
period or the full fiscal year.
 
2. AVAILABLE-FOR-SALE SECURITIES
 
    Available-for-sale securities primarily consist of corporate commercial
paper and certificates of deposit with original maturities beyond three months
and less than twelve months. These investments are carried at an amortized cost
that approximates fair value.
 
3. NET INCOME (LOSS) PER SHARE
 
    Basic EPS is computed as net income (loss) divided by the weighted average
number of common shares outstanding for the period. Diluted EPS reflects the
potential dilution that could occur from common shares issuable through stock
options, warrants and other convertible securities. Common equivalent shares are
excluded from the computation of net loss per share if their effect is
anti-dilutive.
 
                                       6
<PAGE>
                   ENVIROTEST SYSTEMS CORP. AND SUBSIDIARIES
 
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
3. NET INCOME (LOSS) PER SHARE (CONTINUED)
    The following is a reconciliation of the numerator- net income/(loss) and
the denominator- number of shares, used in the basic and diluted EPS calculation
(amounts in thousands except per share data):
 
<TABLE>
<CAPTION>
                                                                         THREE MONTHS ENDED    NINE MONTHS ENDED
                                                                              JUNE 30,              JUNE 30,
                                                                        --------------------  --------------------
                                                                          1998       1997       1998       1997
                                                                        ---------  ---------  ---------  ---------
<S>                                                                     <C>        <C>        <C>        <C>
Basic:
Net Income (loss).....................................................  $   6,073  $   4,133  $   9,808  $  (7,768)
                                                                        ---------  ---------  ---------  ---------
                                                                        ---------  ---------  ---------  ---------
Weighted average common shares outstanding............................     12,116     16,620     12,113     16,620
Basic EPS.............................................................  $    0.50  $    0.25  $    0.81  $   (0.47)
                                                                        ---------  ---------  ---------  ---------
                                                                        ---------  ---------  ---------  ---------
 
Diluted:
Weighted average common shares outstanding............................     12,116     16,620     12,113     16,620
                                                                        ---------  ---------  ---------  ---------
Stock option common equivalents.......................................      3,100        621      2,429     --
Weighted average common shares outstanding and common equivalent
 shares outstanding...................................................     15,216     17,241     14,542     16,620
                                                                        ---------  ---------  ---------  ---------
                                                                        ---------  ---------  ---------  ---------
Diluted EPS...........................................................  $    0.40  $    0.24  $    0.67  $   (0.47)
                                                                        ---------  ---------  ---------  ---------
                                                                        ---------  ---------  ---------  ---------
</TABLE>
 
    Common equivalent shares of 642,000 for the nine months ended June 30, 1997
were excluded from the shares used to calculate diluted EPS as their effect is
anti-dilutive.
 
    In September 1997, the Company purchased 4,388,091 shares of its Class A
Common Stock, par value $0.01 per share, at a price of $4.50 per share pursuant
to its "Dutch" auction tender offer.
 
4. LEGAL PROCEEDINGS
 
    On May 8, 1998, the Company and the State of Connecticut entered into an
agreement (the "Agreement") settling the State's claims against the Company,
except for certain penalties unrelated to the settled claims which the parties
are to negotiate, and the Company's claims against the State. The Agreement
modifies the terms of the Company's existing vehicle inspection and safety
inspection contracts with the State to provide among other things, for the
Company to add five emissions inspection lanes to its existing network in lieu
of constructing an additional station as required under the existing contracts.
The Company previously disclosed that it had filed a demand for arbitration in
response to a decision by the Commissioner of the Department of Motor Vehicles
in February 1996 that the Company realized cost savings of $2.4 million, plus
interest until paid, in connection with certain changes under the Company's
contract to perform vehicle emissions testing services.
 
    On October 8, 1997, Ganzcorp Investments, Inc., d/b/a Mustang Dynamometer,
filed suit against Envirotest in U.S. District Court for the Northern District
of Ohio alleging breach of contract in connection with Envirotest's termination
of its contract to supply the Company with chassis dynamometers and alleging
damages in excess of $10 million. The Company filed an answer and counterclaim
on October 28, 1997, denying the material allegations of the complaint,
asserting defenses based on, among other things, the clause in the contract
permitting termination for convenience by Envirotest and asserting counterclaims
in the amount of $7.9 million for breaches of warranty and contract by Mustang.
On February 28, 1998, the parties entered into a Mediation Agreement providing
for, among other things, a mediation conference on July 28, 1998. While the
parties continue to discuss settlement of the matter, the
 
                                       7
<PAGE>
                   ENVIROTEST SYSTEMS CORP. AND SUBSIDIARIES
 
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
4. LEGAL PROCEEDINGS (CONTINUED)
Company is unable to predict the outcome of these discussions. The Company
intends to vigorously defend against Ganzcorp's claims and to pursue
Envirotest's counterclaims. The Company believes that any judgment against the
Company will not have a material adverse effect on its financial position and
results of operations.
 
    On July 31, 1998, the Company received approximately $12.7 million from the
Commonwealth of Pennsylvania in payment of the final installment due to the
Company under the Settlement Agreement, dated December 15, 1995 (the "Settlement
Agreement"), between the Company and the Commonwealth. The Settlement Agreement
required the Company to utilize its best efforts to dispose of the assets it
acquired to perform vehicle emissions testing services in Pennsylvania. Under
the terms of the Settlement Agreement, if the net proceeds received by the
Company was less than $55 million, the Commonwealth was required to pay the
Company fifty percent of the difference up to $11 million, plus interest at 6%
from December 15, 1995. Each of the Company and Commonwealth has now satisfied
all obligations due to the other under the Settlement Agreement.
 
    R.W. Granger & Sons filed a Demand for Arbitration in the East Hartford,
Connecticut, office of the American Arbitration Association in September 1996
alleging breach of contract and failure to pay amounts due Granger in connection
with the construction of certain of the Company's testing facilities in the
State of Connecticut. On December 29, 1997, Granger filed a complaint in State
Superior Court in the Judicial District of Hartford/New Britain at New Britain
alleging that the Company's failure to pay amounts due to Granger is an unfair
trade practice under the Connecticut Unfair Trade Practices Act. The Arbitrators
awarded Granger approximately $495,000, including the costs of the Arbitration,
in a decision rendered on August 12, 1998. Granger was claiming damages of
approximately $2.0 million in its Demand for Arbitration. The Company intends to
vigorously defend against Granger's remaining claim in State Superior Court. The
Company believes that any judgment against the Company with respect to the
remaining claim will not have a material adverse effect on its financial
position and results of operations.
 
    On November 22, 1997, the Denver District Court granted the Company's Motion
to Dismiss a class action complaint filed by Timothy Dore on behalf of all
persons who paid to have a vehicle tested in the Company's metro Denver
facilities from January 2, 1995 to present. The complaint alleged breach of
contractual obligation to the class and the negligent performance of emissions
testing under the Company's contract with the State of Colorado. On January 6,
1998, Dore filed an appeal in the State of Colorado Court of Appeals from the
trial court's order of dismissal. On June 1, 1998 Dore filed a motion to dismiss
the appeal and on June 15, 1998 the State of Colorado Court of Appeals granted
the motion to dismiss the appeal with prejudice. On June 1, 1998, the attorneys
for Dore filed a new class action complaint in the Boulder District Court. The
new complaint has replaced Timothy Dore with two new representative Plaintiffs,
Jay Sherrit and Arthur D. Gonzales, and the new complaint is brought on behalf
of virtually the identical class. Although the new complaint purports to state
new causes of action, it alleges claims for breach of contract and negligence
which are similar to Dore's class action complaint. On June 23, 1998 the Company
filed a Motion to Change Venue to the Denver District Court. The Company intends
to vigorously defend against Plaintiff's claims. The Company believes that any
judgment obtained against the Company will not have a material adverse effect on
its financial position and results of operations.
 
    In addition to the above, the Company is a party to various other legal
proceedings and claims in the ordinary course of business. Although the claims
cannot be estimated, in the opinion of management the resolution of these
matters will not have a material adverse effect on the Company's consolidated
financial position and results of operations.
 
                                       8
<PAGE>
ITEM 2.
 
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
GENERAL
 
    Envirotest is the leading provider of vehicle emissions inspection and
maintenance programs in the $1.05 billion U.S. vehicle emissions testing market.
The market has traditionally consisted of two types of programs: centralized
test-only programs where emissions tests are conducted by private contractors or
government agencies, and decentralized programs where tests are performed by gas
stations and garages. The Company is the most experienced operator in the $250
million centralized market segment, where it has tested more than 150 million
vehicles since its inception. The Company is implementing a strategy to
penetrate the $800 million decentralized market segment through (i) strategic
alliances with retail gasoline distribution companies and other companies with
strong brand identity, and (ii) commercialization of its proprietary remote
sensing technology, which can unobtrusively measure the emissions of up to 4,000
moving vehicles per hour. The Company has also established a presence, in
conjunction with strategic local partners, to participate in the expanding
international market for vehicle testing services.
 
    The Company conducts its current operations directly and through its
principal wholly owned subsidiaries, Envirotest Technologies, Inc., Envirotest
Illinois, Inc., Envirotest Wisconsin, Inc. and Envirotest Systems Corp., a
Washington corporation. The Company's British Columbia, Canada operations are
conducted through a British Columbia partnership, Envirotest Canada, which is
wholly-owned by the Company (through its subsidiaries).
 
    Certain sections of this Form 10-Q, including "Management's Discussion and
Analysis of Financial Condition and Results of Operations", contain various
forward looking statements within the meaning of Section 21E of the Securities
Exchange Act of 1934, which represent the Company's expectations or beliefs
concerning future events. The Company cautions that these statements are further
qualified by important factors that could cause actual results to differ
materially from those in the forward looking statements. Such factors include,
without limitation, general economic conditions, pending legislation and the
cyclical nature of the vehicle emission testing industry. The forward looking
statements include, without limitation, the amounts of reserves recognized, the
amount of revenue that will be generated under a contract, the total capital
expenditure requirement of a program, statements regarding the commencement of
operations for a particular test site or of a particular program, the number of
annual tests, the types of I/M testing programs to be adopted by states,
regulatory and market changes, the growth in markets in which the Company
operates, the areas of potential growth that the Company has identified, the
value of contracts, renewals of contracts, amount spent in enhancements and
other maintenance capital expenditures, expected realizations of backlog, the
success of the remote sensing technology and its utilization in the future,
ultimate outcome of pending litigation and the Company's success in foreign
jurisdictions.
 
RECENT DEVELOPMENTS
 
    On November 18, 1997, the Company entered into an agreement with the City of
New York to conduct a pilot testing program using its remote sensing technology
in New York City. The three-week program was conducted during May 1998 and
gathered emissions data on vehicles entering the city.
 
    On December 30, 1997 and January 23, 1998, the Company entered into
agreements for the lease of eight remote sensing units in Taiwan. The agreements
provide for four units each to be leased to two Taiwanese companies for the
purpose of collecting fleet emissions data under their contracts with the
Taiwanese government. The data will be used to determine the technology's most
appropriate role in future pollution abatement programs in the cities of Taipei
and Kaohsiung and their surrounding areas.
 
                                       9
<PAGE>
The value of the six-month leases and related engineering services provided by
the Company totaled $850,000 in revenues.
 
    On April 13, 1998, the Company entered into an agreement with the Atlantic
Richfield Company ("ARCO") to operate up to 80 test-only emissions stations in
the Southern California counties of Los Angeles, Orange, Riverside, San
Bernardino, San Diego and Ventura. Envirotest will operate the stations under
ARCO's "SMOGPROS Test-Only" trademark. The Company expects to open the initial
40-station network in ten-station increments. The first stations opened in July
1998. Additional increments of ten stations are expected to open every 60-90
days thereafter. The agreement has an initial term of ten years and an option
for Envirotest to extend for an additional five years.
 
    On April 22, 1998, the Company entered into an agreement with the State of
Minnesota to extend its contract with the State for one year to June 30, 1999.
The Company conducts approximately one million tests each year in Minnesota, and
generated revenue of approximately $7.0 million in fiscal 1997.
 
    On May 1, 1998, the Company exercised its right to extend its contracts with
the State of Tennessee and the Metropolitan Government of Nashville and Davidson
County to June 30, 2001. The Company performs approximately 730,000 paid tests
each year in Tennessee, and generated revenue of approximately $3.6 million in
fiscal 1997.
 
    On June 18, 1998, the Company signed a contract with the State of Kentucky
to conduct centralized emissions testing in three Northern counties following a
competitive procurement. It is expected that 140,000 tests per year will be
performed generating $23 million over the operational term of the contract that
begins in June 1999 and ends in June 2008. The State has advised the Company
that one of the participants in the procurement has filed a protest. Until the
protest is resolved, the Company will not make any significant expenditures
toward the program. The Company is not able to predict the outcome of the
protest.
 
    On July 2, 1998, the Company entered into a Sponsorship Agreement with
WorldCom Technologies, Inc. ("WorldCom") pursuant to which the Company intends
to advertise a long distance telephone program offered by WorldCom in certain of
the Company's vehicle emissions testing facilities. WorldCom will rebate the
vehicle emissions test fees paid by eligible motorists who sign up for WorldCom
services. The Company is to receive a percentage of the revenue paid to
WorldCom.
 
RESULTS OF OPERATIONS
 
    Contract revenues increased to $45.1 million in fiscal third quarter 1998
from $36.9 million in fiscal third quarter 1997, an increase of $8.2 million or
22.3%. For the nine months ended June 30, 1998, contract revenues were $122.7
million, an increase of $20.9 million, or 20.5%, over contract revenues of
$101.8 million for the corresponding period in fiscal 1997. The increase in
contract revenues in fiscal third quarter 1998 as compared to fiscal third
quarter 1997 was attributable to several factors including the extended contract
in Illinois, increased paid test volume, and contractual fee increases.
 
    The increase in contract revenues of $20.9 million for the nine months ended
June 30, 1998 over the same period in the prior fiscal year resulted primarily
from the factors discussed above and new emissions and safety contracts in
Indiana and Connecticut, respectively.
 
    Gross profit increased to $19.7 million in fiscal third quarter 1998 from
$13.3 million in fiscal third quarter 1997, an increase of $6.4 million, or
48.1%. As a percentage of contract revenues, gross profit increased to 43.6% in
fiscal third quarter 1998 from 36.0% in fiscal third quarter 1997, an absolute
increase of 7.6%. These increases were primarily attributable to increased
revenues and continued improvements in operational efficiencies.
 
    For the nine months ended June 30, 1998, gross profit increased to $48.1
million from $27.8 million for the corresponding period in fiscal 1997, an
increase of $20.3 million or 73.3%. As a percentage of
 
                                       10
<PAGE>
contract revenues, gross profit increased to 39.2% from 27.3% in the
corresponding period in fiscal 1997, an absolute increase of 11.9%. These
increases were attributable to the same factors as for the fiscal third quarter
discussed above, and the reduction in the deferred charge amortization.
 
    Selling, general and administrative ("SG&A") expenses increased to $5.6
million in fiscal third quarter 1998 from $4.7 million in fiscal third quarter
1997, an increase of $.9 million or 18.9%. This increase was primarily
attributable to the Company's review of strategic alternatives to enhance its
business potential and shareholder value. As a percentage of contract revenues,
SG&A expenses decreased to 12.3% in fiscal third quarter 1998 from 12.7% in
fiscal third quarter 1997, an absolute decrease of 0.4%.
 
    For the nine months ended June 30, 1998, SG&A increased to $14.3 million
from $14.0 million for the corresponding period in fiscal 1997, an increase of
$.3 million or 2.5%. As a percentage of contract revenues, SG&A expenses
decreased to 11.7% for the nine months ended June 30, 1998 from 13.7% for the
corresponding period in 1997, an absolute decrease of 2.0%.
 
    Income from operations increased to $13.5 million in fiscal third quarter
1998 from $12.0 million in fiscal third quarter 1997, an increase of $1.5
million. Income from operations as a percentage of contract revenues decreased
to 30.0% in fiscal third quarter 1998 from 32.6% in fiscal third quarter 1997,
an absolute decrease of 2.6%. For the nine months ended June 30, 1998 income
from operations increased to $32.0 million from $15.9 million for the
corresponding period in fiscal 1997. Income from operations as a percentage of
contract revenues increased to 26.1% in the nine months ended June 30, 1998 from
15.6% in the nine months ended June 30, 1997, an absolute increase of 10.5%. The
increase for the third fiscal quarter 1998 and nine months ended June 30, 1998
is primarily attributable to increases in revenue and improvements in gross
profit margins.
 
    Interest expense decreased to $8.5 million in fiscal third quarter 1998 from
$10.3 million in fiscal third quarter 1997, a decrease of $1.8 million. For the
nine months ended June 30, 1998, interest expense decreased to $25.7 million
from $30.1 million in the corresponding period of the prior year, a decrease of
$4.4 million. This decrease in interest expense primarily resulted from the
repurchase of $50 million aggregate principal amount of the Company's 9 1/8%
Senior Notes completed in September 1997 and prepayment of debt associated with
a project financing.
 
    Interest income decreased to $1.2 million in fiscal third quarter 1998 from
$2.4 million in fiscal third quarter of 1997, a decrease of $1.2 million. For
the nine months ended June 30, 1998, interest income decreased to $3.8 million
compared to $6.6 million in the corresponding period of the prior year, a
decrease of $2.8 million. The decrease in interest income was primarily
attributable to the lower levels of interest bearing investments resulting from
the application of cash in connection with the Company's debt repurchase and
stock buyback for $79.0 million completed in September 1997.
 
    Provision for income taxes increased to $0.2 million in fiscal third quarter
1998 from $0.0 million in fiscal third quarter 1997. The increase is
attributable to federal and state alternative minimum taxes in the fiscal third
quarter 1998. The tax provision for the nine months ended June 30, 1998 was $0.2
million, an effective tax rate of 2%. The effective tax rate is less than the
federal statutory tax rate due to the utilization of net operating losses. There
was no income tax credit on the pretax loss for the fiscal third quarter 1997
and the nine months ended June 30, 1997 as a result of recording a valuation
allowance to fully reserve the net deferred tax asset.
 
    Net income was $6.1 million in fiscal third quarter 1998 compared to a net
income of $4.1 million in fiscal third quarter 1997, an increase of $2.0
million. For the nine months ended June 30, 1998, net income was $9.8 million
compared to a net loss of $7.8 million for the corresponding period in fiscal
1997, an increase of $17.6 million.
 
                                       11
<PAGE>
LIQUIDITY, CAPITAL RESOURCES AND COMMITMENTS
 
    Cash and cash equivalents, available-for-sale securities and restricted cash
increased to $80.0 million at June 30, 1998 from $79.2 million at September 30,
1997. The increase of $0.8 million was primarily a result of approximately $38.2
million in cash provided by operations, offset by the repayment of debt
obligations and capital lease payments of $16.2 million, included in cash used
in financing activities, and construction progress payments of $21.2 million,
net of assets sales of $9.6 million, included in cash used in investing
activities.
 
    The Company's primary uses of cash are the funding of the Company's capital
expenditure requirements, payments on capital and operating leases, principal
and interest payments, and other working capital needs. The Company's capital
and operating leases currently require minimum lease payments of approximately
$15.0 million in fiscal year 1998, decreasing to approximately $12.0 million in
the year 2000 and further decreasing thereafter as certain leases are scheduled
to expire.
 
    The Company's capital expenditures include maintenance capital expenditures
for existing facilities, and development and construction expenditures for new
emissions facilities. The Company's development and construction capital
expenditures are dependent on the number of contracts it is awarded, and are
only incurred after the contract has been signed. After signing a contract, the
Company may incur significant development and construction expenditures, which
the Company expects to finance with existing cash resources, internally
generated funds, additional borrowings and alternative financing sources,
including leasing alternatives. It generally takes one to two years after a
contract has been signed for a program to begin operations and generate
revenues, depending on the size of the program.
 
    The Company's principal commitments at June 30, 1998 consist of capital
expenditure requirements to complete the implementation of the Illinois program
estimated at $3.4 million, net of the $26.9 million in payments from the state.
During the remainder of fiscal 1998, the Company intends to spend approximately
$2.9 million in a new business initiative, program enhancements and other
maintenance capital expenditures.
 
    The Company believes that its existing cash resources, cash generated from
operations and alternative financing sources, including leasing alternatives,
will be sufficient to complete implementation of the Illinois program and the
newly awarded Kentucky program, assuming successful resolution of the pending
protest, and to meet its liquidity requirements for the foreseeable future.
 
RECENT ACCOUNTING PRONOUNCEMENTS
 
    In June 1997, the FASB issued SFAS No. 130, "Reporting Comprehensive
Income." This Statement establishes standards for reporting and displaying
comprehensive income and its components in the consolidated financial
statements. It does not, however, require a specific format for the statement,
but requires the Company to display an amount representing total comprehensive
income for the period in that financial statement. This Statement is effective
for the Company's 1999 fiscal year. The Company believes the adoption will have
no material impact on the financial statements.
 
    In June 1997, the FASB issued SFAS No. 131, "Disclosures about Segments of
an Enterprise and Related Information." The Statement establishes standards for
how public business enterprises are to report information about operating
segments in annual financial statements and requires those enterprises to report
selected information about operating segments in interim financial reports
issued to shareholders. This Statement is effective for the Company's 1999
fiscal year. The Company does not believe it currently has any separately
reportable segments.
 
YEAR 2000 COMPLIANCE
 
    Like many companies, the Company is reliant on technology to deliver
services to its customers. During 1998, the Company will utilize internal and
external resources to identify, correct or reprogram and
 
                                       12
<PAGE>
test its computer systems for year 2000 compliance. The "Year 2000" problem is
the result of computer programs being written using two digits rather than four
to define the applicable year. Any of the Company's programs that have date
sensitive software may recognize a date using "00" as the year 1900 rather than
the year 2000. The Company expects to replace some systems and modify others as
part of this process. Based on preliminary assessments at this time, the Company
does not expect to incur significant operating expenses or be required to invest
heavily in computer system improvements in order to be year 2000 compliant.
However, there can be no assurance that the systems of other companies on which
the Company's operations rely will also be converted in a timely manner, or that
any such failure to convert by another company will not have adverse effect on
the Company's operations.
 
                                       13
<PAGE>
                           PART II. OTHER INFORMATION
 
ITEM 1. LEGAL PROCEEDINGS
 
    On May 8, 1998, the Company and the State of Connecticut entered into an
agreement (the "Agreement") settling the State's claims against the Company,
except for certain penalties unrelated to the settled claims which the parties
are to negotiate, and the Company's claims against the State. The Agreement
modifies the terms of the Company's existing vehicle inspection and safety
inspection contracts with the State to provide among other things, for the
Company to add five emissions inspection lanes to its existing network in lieu
of constructing an additional station as required under the existing contracts.
The Company previously disclosed that it had filed a demand for arbitration in
response to a decision by the Commissioner of the Department of Motor Vehicles
in February 1996 that the Company realized cost savings of $2.4 million, plus
interest until paid, in connection with certain changes under the Company's
contract to perform vehicle emissions testing services.
 
    On October 8, 1997, Ganzcorp Investments, Inc., d/b/a Mustang Dynamometer,
filed suit against Envirotest in U.S. District Court for the Northern District
of Ohio alleging breach of contract in connection with Envirotest's termination
of its contract to supply the Company with chassis dynamometers and alleging
damages in excess of $10 million. The Company filed an answer and counterclaim
on October 28, 1997, denying the material allegations of the complaint,
asserting defenses based on, among other things, the clause in the contract
permitting termination for convenience by Envirotest and asserting counterclaims
in the amount of $7.9 million for breaches of warranty and contract by Mustang.
On February 28, 1998, the parties entered into a Mediation Agreement providing
for, among other things, a mediation conference on July 28, 1998. While the
parties continue to discuss settlement of the matter, the Company is unable to
predict the outcome of these discussions. The Company intends to vigorously
defend against Ganzcorp's claims and to pursue Envirotest's counterclaims. The
Company believes that any judgment against the Company will not have a material
adverse effect on its financial position and results of operations.
 
    On July 31, 1998, the Company received approximately $12.7 million from the
Commonwealth of Pennsylvania in payment of the final installment due to the
Company under the Settlement Agreement, dated December 15, 1995 (the "Settlement
Agreement"), between the Company and the Commonwealth. The Settlement Agreement
required the Company to utilize its best efforts to dispose of the assets it
acquired to perform vehicle emissions testing services in Pennsylvania. Under
the terms of the Settlement Agreement, if the net proceeds received by the
Company was less than $55 million, the Commonwealth was required to pay the
Company fifty percent of the difference up to $11 million, plus interest at 6%
from December 15, 1995. Each of the Company and Commonwealth has now satisfied
all obligations due to the other under the Settlement Agreement.
 
    R.W. Granger & Sons filed a Demand for Arbitration in the East Hartford,
Connecticut, office of the American Arbitration Association in September 1996
alleging breach of contract and failure to pay amounts due Granger in connection
with the construction of certain of the Company's testing facilities in the
State of Connecticut. On December 29, 1997, Granger filed a complaint in State
Superior Court in the Judicial District of Hartford/New Britain at New Britain
alleging that the Company's failure to pay amounts due to Granger is an unfair
trade practice under the Connecticut Unfair Trade Practices Act. The Arbitrators
awarded Granger approximately $495,000, including the costs of the Arbitration,
in a decision rendered on August 12, 1998. Granger was claiming damages of
approximately $2.0 million in its Demand for Arbitration. The Company intends to
vigorously defend against Granger's remaining claim in State Superior Court. The
Company believes that any judgment against the Company with respect to the
remaining claim will not have a material adverse effect on its financial
position and results of operations.
 
    On November 22, 1997, the Denver District Court granted the Company's Motion
to Dismiss a class action complaint filed by Timothy Dore on behalf of all
persons who paid to have a vehicle tested in the
 
                                       14
<PAGE>
Company's metro Denver facilities from January 2, 1995 to present. The complaint
alleged breach of contractual obligation to the class and the negligent
performance of emissions testing under the Company's contract with the State of
Colorado. On January 6, 1998, Dore filed an appeal in the State of Colorado
Court of Appeals from the trial court's order of dismissal. On June 1, 1998 Dore
filed a motion to dismiss the appeal and on June 15, 1998 the State of Colorado
Court of Appeals granted the motion to dismiss the appeal with prejudice. On
June 1, 1998, the attorneys for Dore filed a new class action complaint in the
Boulder District Court. The new complaint has replaced Timothy Dore with two new
representative Plaintiffs, Jay Sherrit and Arthur D. Gonzales, and the new
complaint is brought on behalf of virtually the identical class. Although the
new complaint purports to state new causes of action, it alleges claims for
breach of contract and negligence which are similar to Dore's class action
complaint. On June 23, 1998 the Company filed a Motion to Change Venue to the
Denver District Court. The Company intends to vigorously defend against
Plaintiff's claims. The Company believes that any judgment obtained against the
Company will not have a material adverse effect on its financial position and
results of operations.
 
    In addition to the above, the Company is a party to various other legal
proceedings and claims in the ordinary course of business. Although the claims
cannot be estimated, in the opinion of management the resolution of these
matters will not have a material adverse effect on the Company's consolidated
financial position and results of operations.
 
ITEM 5. OTHER INFORMATION
 
    On August 12, 1998, the Company entered into a merger agreement pursuant to
which Stone Rivet, Inc., a Delaware corporation ("Purchaser"), will commence a
tender offer for all of the issued and outstanding shares of the Company's Class
A Common Stock for $266.3 million in cash, or $17.25 per share, plus the
assumption of approximately $275 million in net debt. The Class B and Class C
shares of the Company's Common Stock are convertible by the holders thereof into
shares of Class A Common Stock on a one-for-one basis and thus may be tendered
as well. The tender offer will expire on September 30, 1998, and will be
conditioned (the "Minimum Condition"), among other things, upon the tender of at
least 90 percent of the outstanding shares of the Company's Class A Common Stock
(assuming conversion of all Class B and Class C shares into shares of Class A
Common Stock). Certain stockholders of the Company have agreed to tender
approximately 50 percent of the outstanding shares into the offer. If the
Minimum Condition is not satisfied, the transaction will be completed pursuant
to a merger. Purchaser is a wholly owned indirect subsidiary of Newmall Limited,
a U.K. company. Newmall Limited is controlled by the Alchemy Investment Plan, an
investment consortium, which is advised by Alchemy Partners.
 
                                       15
<PAGE>
ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K
 
    (a)  Exhibits
 
<TABLE>
<S>         <C>
 EMPLOYMENT AGREEMENTS
  (10.127)  Confidential Severance Agreement and General Release made as of May 15,
            1998, by and between Mark Frost and Envirotest Systems Corp.
 
  (10.128)  Employment Agreement made as of the 4th day of June 1998 by and between
            John Pachuta and Envirotest Systems Corp.
 
  (10.129)  Amendment of the Separation, Release and Waiver Agreement, dated as of
            September 30, 1997, and first amended as of April 20, 1998, by and between
            C. Michael Alston and Envirotest Systems Corp., made as of the 4th day of
            June 1998.
 
  (10.130)  Amendment of the Employment Agreement dated as of January 1, 1993, by and
            between Chester C. Davenport and Envirotest Systems Corp., made as of the
            4th day of June 1998.
 
  (10.131)  Amendment of the Employment Agreement dated as of January 1, 1996, and
            first amended as of April 21, 1998, by and between Raj G. Modi and
            Envirotest Systems Corp., made as of the 4th day of June 1998.
 
  (10.132)  Consulting Agreement made as of the 4th day of June 1998 by and between Raj
            G. Modi and Envirotest Systems Corp.
 
 MATERIAL CONTRACTS
 
  (10.133)  Change Order for Services ("Change Order") issued by the Ohio Environmental
            Protection Agency ("OEPA"), by its Director to Envirotest Systems Corp.
            ("Contractor") changes and restates (1) a Contract for Services between the
            Parties for an Automobile Inspection and Maintenance Program in Cuyahoga
            County dated April 25, 1995, ("Zone 4 Contract"); (2) an Amended Contract
            for Services between the Parties for Summit, Portage, Medina, Lake, Lorain,
            and Geauga Counties dated April 25, 1995, ("Zone 1 Contract"); and (3) a
            Contract for Services between the Parties for Montgomery, Clark, and Greene
            Counties dated October 24, 1994, ("Zone 2 Contract").
 
  (10.134)  First and Second Amendments dated October 20, 1997 and May 8, 1998,
            respectively, of the Contract between the State of Connecticut and
            Envirotest Systems Corp. for the Establishment and Operation of Motor
            Vehicle Inspection Program Facilities for the State of Connecticut.
 
  (10.135)  Agreement made by and between Envirotest Systems Corp. and the State of
            Connecticut, Department of Motor Vehicles dated May 8, 1998.
 
  (10.136)  Contract for the Provision and Operation of an Improved Basis Vehicle
            Inspection Maintenance Program in Boone, Campbell, and Kenton Counties in
            Kentucky, and Specifically for the Provision and Operation of a Vehicle
            Emissions Testing Facility in Each of the Three Counties, effective as of
            July 1, 1998 by and between Envirotest Systems Corp. and the Commonwealth
            of Kentucky, and Addendums 1-3 thereto.
 
  (27)      Financial Data Schedule
</TABLE>
 
(b) Reports on Form 8-K
 
    1.  The Company filed a report on Form 8-K on May 7, 1998, reporting that
       the Company is exploring strategic alternatives to maximize shareholder
       value.
 
                                       16
<PAGE>
                                   SIGNATURES
 
    Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrants have duly caused their report to be signed on their behalf by the
undersigned thereunto duly authorized.
 
<TABLE>
<S>                             <C>  <C>
                                ENVIROTEST SYSTEMS CORP.
                                                (REGISTRANT)
 
                                ENVIROTEST TECHNOLOGIES, INC.
                                                (REGISTRANT)
 
Date: Aug.   , 1998             /s/ F. ROBERT MILLER
                                ---------------------------------------------
                                F. Robert Miller
                                   PRESIDENT AND CHIEF EXECUTIVE OFFICER
 
Date: Aug.   , 1998             /s/ RAJ MODI
                                ---------------------------------------------
                                Raj Modi
                                   VICE PRESIDENT, CHIEF FINANCIAL OFFICER,
                                   TREASURER AND ASSISTANT SECRETARY
                                   (PRINCIPAL FINANCIAL OFFICER)
</TABLE>
 
                                       17
<PAGE>
                            ENVIROTEST SYSTEMS CORP.
                                 EXHIBIT INDEX
 
<TABLE>
<S>         <C>
 EXHIBIT
 NUMBER:
 EMPLOYMENT AGREEMENTS
 
  (10.127)  Confidential Severance Agreement and General Release made as of May 15,
            1998, by and between Mark Frost and Envirotest Systems Corp.
 
  (10.128)  Employment Agreement made as of the 4th day of June 1998 by and between
            John Pachuta and Envirotest Systems Corp.
 
  (10.129)  Amendment of the Separation, Release and Waiver Agreement, dated as of
            September 30, 1997, and first amended as of April 20, 1998, by and between
            C. Michael Alston and Envirotest Systems Corp., made as of the 4th day of
            June 1998.
 
  (10.130)  Amendment of the Employment Agreement dated as of January 1, 1993, by and
            between Chester C. Davenport and Envirotest Systems Corp., made as of the
            4th day of June 1998.
 
  (10.131)  Amendment of the Employment Agreement dated as of January 1, 1996, and
            first amended as of April 21, 1998, by and between Raj G. Modi and
            Envirotest Systems Corp., made as of the 4th day of June 1998.
 
  (10.132)  Consulting Agreement made as of the 4th day of June 1998 by and between Raj
            G. Modi and Envirotest Systems Corp.
 
 MATERIAL CONTRACTS
 
  (10.133)  Change Order for Services ("Change Order") issued by the Ohio Environmental
            Protection Agency ("OEPA"), by its Director to Envirotest Systems Corp.
            ("Contractor") changes and restates (1) a Contract for Services between the
            Parties for an Automobile Inspection and Maintenance Program in Cuyahoga
            County dated April 25, 1995, ("Zone 4 Contract"); (2) an Amended Contract
            for Services between the Parties for Summit, Portage, Medina, Lake, Lorain,
            and Geauga Counties dated April 25, 1995, ("Zone 1 Contract"); and (3) a
            Contract for Services between the Parties for Montgomery, Clark, and Greene
            Counties dated October 24, 1994, ("Zone 2 Contract").
 
  (10.134)  First and Second Amendments dated October 20, 1997 and May 8, 1998,
            respectively, of the Contract between the State of Connecticut and
            Envirotest Systems Corp. for the Establishment and Operation of Motor
            Vehicle Inspection Program Facilities for the State of Connecticut.
 
  (10.135)  Agreement made by and between Envirotest Systems Corp. and the State of
            Connecticut, Department of Motor Vehicles dated May 8, 1998.
 
  (10.136)  Contract for the Provision and Operation of an Improved Basis Vehicle
            Inspection Maintenance Program in Boone, Campbell, and Kenton Counties in
            Kentucky, and Specifically for the Provision and Operation of a Vehicle
            Emissions Testing Facility in Each of the Three Counties, effective as of
            July 1, 1998 by and between Envirotest Systems Corp. and the Commonwealth
            of Kentucky, and Addendums 1-3 thereto.
 
  (27)      Financial Data Schedule
</TABLE>
 
                                       18

<PAGE>

                CONFIDENTIAL SEVERANCE AGREEMENT AND GENERAL RELEASE


     This Agreement ("Agreement") made as of the 15 day of May, 1998 (the
"Effective Date"), by and between MARK D. FROST, having an address at 21
Piedmont Court, Piedmont, CA 94611 ("Frost"), and ENVIROTEST SYSTEMS CORP., a
Delaware corporation, with principal offices at 246 Sobrante Way, Sunnyvale,
California, 94086, all affiliates and parents, including but not limited to,
ENVIROTEST TECHNOLOGIES, INC. (hereinafter collectively referred to as the
"Company").

                                       RECITALS

     WHEREAS, the Company and Frost desire to enter into an agreement to set
forth the terms of Frost's separation from the Company and a release of claims.

     NOW THEREFORE, in return for the promises, consideration, mutual covenants,
agreements, and conditions provided for in this Agreement, the receipt and
adequacy of which are hereby acknowledged by the parties, and intending to be
legally bound, Frost and the Company hereby agree as follows:

                                      COVENANTS

    1.   In consideration of the execution of this Agreement and the release 
and waiver contained herein, the Company agrees that:

          a.   The Company shall provide Frost with salary continuation, which
               would not otherwise be paid, at his present rate of pay for nine
               (9) months from the date of his resignation, payable in
               accordance with the Company's regular payroll schedule and
               practices.  The Company will deduct taxes and make other
               deductions required for wages by state and federal law.

          b.   Company will pay Frost for his earned and unused vacation time,
               minus required and authorized withholding deductions, which Frost
               agrees is the total amount of earned and unused vacation time due
               and owing to Frost as of the date of resignation of his
               employment, and that no further vacation time shall be earned
               after that date.

          c.   Frost and his dependents will receive family medical, dental,
               disability and life insurance coverage and executive medical
               reimbursement identical to those provided by the Company to its
               vice presidents, at Company expense, through February 15, 1999.
               Pursuant to the Consolidated Omnibus Budget Reconciliation Act of
               1985, from and after February 15, 1999, Frost will continue to be
               eligible for coverage under the Company's group medical,

<PAGE>

               dental and life plans for as long as permitted by applicable law,
               but he will be personally responsible for the payment of all
               premiums due under such plans.  Frost may at any time convert his
               group medical and dental benefits to an individual policy.  The
               Company will provide Frost with all necessary forms to convert
               such policies and will give Frost notice of the amount necessary
               to continue premiums on the group medical plans and notice of his
               option to convert the plans into individual plans.

          d.   In the event of Frost's death prior to payment of the benefits
               set forth in Paragraphs 1(a) and 1(b) above, all remaining
               compensation and benefits described therein will be provided to
               Frost's wife, Silvia Frost, if she survives him.  If not, all
               payment obligations under those paragraphs will be made to
               Frost's estate.

          e.   Frost's participation, if any, in any employee benefit or
               retirement plans will be determined by the terms of those plans,
               or as otherwise required by law.

          f.   Pursuant to action taken by the Compensation Committee of the
               Board of Directors of the Company, Frost has been granted
               incentive stock options to purchase 90,000 shares of Class A
               Common Stock of Envirotest Systems Corp. under the Envirotest
               Systems Corp. Stock Option Plan.  Of the 90,000 shares subject to
               option, 15,000 options (the "Vested Options") have vested under a
               Stock Option Agreement dated October 24, 1996 (the "October
               Agreement").  The Company hereby (i) agrees that the Vested
               Options may be exercised in accordance with the terms of the
               October Agreement, and (ii) amends the October Agreement to
               provide that Frost shall have the full ten-year term of the
               October Agreement to exercise the Vested Options.  All other
               options granted to Frost, including the remaining options granted
               under the October Agreement and options granted under an option
               agreement dated January 14, 1998, are hereby canceled.

          g.   In addition to the benefits described elsewhere in this
               Agreement, the Company agrees:

               (i)    To permit Frost to participate in an employee loan or
                      other financial assistance program, if any, established by
                      the Company and made available to all Envirotest employees
                      in connection with the exercise of Envirotest stock
                      options.  Frost acknowledges and agrees that (1) such
                      program does not currently exist, (2) the Company is under
                      no obligation to establish any such program, and (3) the
                      Company does


                                          2

<PAGE>

                      not represent, warrant or covenant that any such 
                      program will ever be established.

               (ii)   To permit Frost to keep permanently the laptop computer
                      issued to him by Envirotest (including reasonable
                      peripherals such as the printer and docking station).

               (iii)  To permit Frost to keep permanently the cellular telephone
                      issued to him by Envirotest and currently in his
                      possession.

               (iv)   To provide to Frost Outplacement Services (not-to-exceed
                      $1,500.00 in the aggregate) to assist him in obtaining
                      employment.

    2.   By signing this Agreement, and accepting the consideration specified 
         above, Frost knowingly and voluntarily agrees as follows:

         a.   Frost hereby resigns his position as Vice President effective 
              May 15, 1998.

         b.   Frost hereby waives, releases and forever discharges the 
              Company, its shareholders, officers, directors, agents, 
              employees, and all affiliates of the foregoing personally as 
              individuals and as shareholders, officers, directors, agents, 
              employees, and affiliates, and their successors and assigns 
              (severally and collectively "Releasees") from, and covenants not 
              to sue or charge them individually, jointly or severally, on, any
              and all claims or causes of action arising out of his employment 
              by the Company, under any local, state, or federal law or 
              regulation, including without limitation, those arising under the
              Age Discrimination in Employment Act of 1967 (ADEA), Title VII of
              the Civil Rights Act of 1964, as amended, the Older Workers 
              Protection Act of 1990, the Labor Management Relations Act, 
              Employee Income Retirement Security Act (ERISA), the Family and 
              Medical Leave Act of 1993, the Americans with Disabilities Act, 
              the Fair Employment and Housing Act, and the California Civil 
              Rights Act, or under common law tort or contract theory, whether 
              in law or equity, known or unknown, asserted or unasserted, 
              suspected or unsuspected, which Frost or his heirs, has ever had,
              or now has against Releasees.  The Company waives, releases and 
              forever discharges Frost, his spouse and his heirs (severally and
              collectively the "Frost Releasees") from, and covenants not to 
              sue or charge the Frost Releasees on any and all claims or causes
              of action arising out of Frost's employment by the Company under 
              any local, state or federal law or regulations or any common law 
              tort or contract theory, whether in law or equity, known or


                                          3

<PAGE>

               unknown, asserted or unasserted, suspected or unsuspected, which
               the Company, or its successors, has, ever had, or now has against
               the Frost Releases.  Frost represents and acknowledges that he
               has been provided a reasonable opportunity to consult with an
               attorney regarding the nature and effect of this Release and
               Waiver, and has not been advised to do so by the Company.

          c.   Frost and the Company hereby expressly waive Section 1542 of the
               California Civil Code, which provides:

                    A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE
                    CREDITOR DOES NOT KNOW OR SUSPECT TO EXIST IN HIS FAVOR AT
                    THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN TO HIM
                    MUST HAVE MATERIALLY AFFECTED HIS SETTLEMENT WITH THE
                    DEBTOR.

               Frost and the Company also expressly waive the benefit of any
               other statute or rule of law, which, if applied to this 
               Agreement, would otherwise exclude from its binding effect 
               any claims released hereby not now known to exist by Frost 
               and/or the Company.

          d.   Frost agrees and acknowledges that he has received all share
               certificates and stock option agreements due him, and that he 
               will not receive an additional grant of stock options for 
               services rendered during the Company's current fiscal year 
               or otherwise.

     3.   In consideration of this Agreement and to induce the Company to enter
into such Agreement, Frost hereby makes the following representations to and
agreements with the Company:

          a.   Except as required by legal proceeding, Frost agrees that he will
               not make any statements or disclose any information which in the
               Company's reasonable judgment are inimical to the interest of the
               Company or are derogatory about the Company, its stockholders,
               officers, directors, systems, products, or services.

          b.   Frost will not disclose or cause or allow to be disclosed any of
               the terms, conditions, amounts or any other details of this
               Agreement; PROVIDED, HOWEVER, that nothing shall preclude Frost
               from making such disclosure as may be required by applicable law
               or as may be necessary in the course of prosecuting or defending
               litigation concerning this Agreement; and PROVIDED FURTHER that
               nothing shall


                                          4
<PAGE>

               preclude Frost from fully disclosing to the preparer of his tax
               return the nature and source of his taxable income, nor from
               fully disclosing to his attorney the terms of this Agreement as
               provided in Paragraph 3(a) above.

     4.   Frost recognizes and acknowledges that Company's, its parents', its 
affiliates', their divisions' and vendors' and the users of their services' 
("users") confidential financial records, financial and other plans, 
engineering methods and systems, marketing methods and systems, advertising 
strategies and methods, strategic plans, databases, trade secrets, user 
lists, information regarding users and potential users, staff members, or 
suppliers, reports prepared by consultants, other information, observations, 
data and ideas obtained by him during the course of his employment at the 
Company, or other proprietary information of the Company (collectively 
referred to as the "Confidential Information"), are valuable, special, and 
unique assets of these entities, divisions, vendors, and users.  Therefore, 
Frost agrees not to disclose any Confidential Information to any person, 
firm, corporation, or other entity whatsoever without advance written 
authorization by the Company or unless and until the information becomes 
generally available to the public through proper means not in violation of 
this Agreement.  Moreover, Frost agrees not to use any Confidential 
Information unless and until it becomes generally available to the public 
through proper means not in violation of this Agreement. Frost will return to 
Company all documents and other information that are the property of the 
Company that are in his possession or control and that in any way relate to 
the Company or which reflect or contain information or data or ideas 
generated or collected by or on behalf of the Company, including, but not 
limited to, all documents, memoranda, notes, records, reports, manuals, 
correspondence, user lists, books, slides, databases, supplier, contractor, 
or consultant lists and information, presentations, flow charts, outlines, 
financial information, projections, user marketing documents and plans, 
whether stored on paper, computer, tape, or any other means of data storage.  
Frost will return to the Company no later than June 1, 1998, any keys, 
equipment, materials, credit cards, and any other property belonging to the 
Company.

     5.   Frost acknowledges that the services rendered by him to the Company 
were of a special, unique and extraordinary character and, in connection with 
such services, he has had access to confidential information vital to the 
Company's business.  By reason of this, Frost consents and agrees that if he 
violates Paragraph 3 or Paragraph 4 of this Agreement, the Company would 
sustain irreparable harm and, therefore, in addition to any other remedies 
which the Company may have under this Agreement or otherwise, the Company 
shall be entitled to apply to any court of competent jurisdiction for 
equitable relief, including without limitation an injunction restraining 
Frost from committing or continuing any such violation of this Agreement.  
Moreover, Frost and the Company hereby agree that the actual damages arising 
from the breach by Frost of Paragraph 3 or Paragraph 4 of the Agreement would 
be extremely difficult or impracticable to ascertain under the circumstances, 
and therefore, in such event, the Company shall have the right to recover the 
sum of $100,000 in liquidated damages.  In addition, the Company may elect to 
seek other remedies relating to breaches of Paragraph


                                          5
<PAGE>

3 or Paragraph 4 in any court of competent jurisdiction in lieu of arbitration
of such claims.

     6.   Frost represents and acknowledges that in executing this Agreement, he
does not rely and has not relied upon any representation or statement not set
forth herein made by any of the Company's employees, agents, representatives, or
attorneys with regard to the subject matter, basis or effect of this Agreement
or otherwise.

     7.   The obligations of the parties hereto are severable and divisible;
and, in the event any consideration flowing from Frost or the Company as
described herein is determined to be unlawful or unenforceable, the remainder of
this Agreement shall be enforceable.

     8.   Frost expressly represents and warrants that he is the sole owner of
the actual or alleged claims, demands, rights, causes of action, and other
matters that are released herein; that the same have not been transferred or
assigned or caused to be transferred or assigned to any other person, firm,
corporation or other legal entity; and that he has the full right and power to
grant, execute and deliver the releases, undertakings, and agreements contained
herein.

     9.   Neither the negotiation nor the execution of this Agreement shall
constitute an acknowledgment or admission of any kind by the Company that it, or
any of the Releasees, jointly or severally, has violated any federal, state or
local law or regulation, or breached any common law or other obligation or duty
to Frost.

     10.  Except as otherwise provided in Paragraph 5 of this Agreement, any
dispute arising between the Company and Frost with respect to the performance or
interpretation of this Agreement shall be submitted to arbitration in San
Francisco, California, for resolution in accordance with the rules of the
American Arbitration Association, modified to provide that the decision by the
arbitrators shall be binding on the parties, shall be furnished in writing,
separately and specifically stating the findings of fact and conclusions of law
on which the decision is based, and shall be rendered within ninety (90) days
following impanelment of the arbitrators.  The cost of arbitration will
initially be borne by the party requesting arbitration.  Following a decision by
the arbitrators, the cost of arbitration will be divided as directed by the
arbitrators.

     11.  This Agreement shall be subject to and governed by the laws of the
State of California.

     12.  The terms and conditions contained herein constitute the entire
agreement between the parties and supersede all previous communications, either
oral or written, between the parties with respect to the subject matter of this
Agreement, and no agreement or understanding varying or extending the same shall
be binding upon either party unless in writing and signed by or on behalf of
such party.


                                          6

<PAGE>

     13.  FROST STATES THAT HE HAS READ THE FOREGOING AGREEMENT, FULLY
UNDERSTANDS ITS CONTENT AND EFFECT, AND WITHOUT DURESS OR COERCION, KNOWINGLY
AND VOLUNTARILY ASSENTS TO ITS TERMS. FROST ALSO ACKNOWLEDGES THAT HE HAS BEEN
ADVISED AND GIVEN AN OPPORTUNITY TO CONSULT WITH AN ATTORNEY PRIOR TO EXECUTING
THIS AGREEMENT, AND THAT HE HAS HAD TWENTY-ONE DAYS TO CONSIDER WHETHER TO
EXECUTE THIS AGREEMENT. FROST FURTHER ACKNOWLEDGES THAT WITHIN SEVEN DAYS FROM
THE DATE OF THE EXECUTION OF THIS AGREEMENT HE MAY, AT HIS SOLE OPTION, REVOKE
THE AGREEMENT UPON WRITTEN NOTICE TO JIM BURLEY, VICE PRESIDENT, AND THAT THE
AGREEMENT WILL NOT BECOME EFFECTIVE UNTIL THE SEVEN-DAY REVOCATION PERIOD HAS
EXPIRED.

     14.  In the event of any controversy or dispute arising out of or related
to this Agreement, the prevailing party shall be entitled to recover from
non-prevailing party actual expenses, including without limitation, reasonable
attorney's fees and actual costs incurred.

     15.  This Agreement may be executed in two or more counterparts, each of
which shall be considered an original, but all of which taken together shall
constitute one and the same agreement.


                                       7
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed or caused to be
executed this Agreement as of the day and year first above written.

                                        ENVIROTEST SYSTEMS CORP.

                                        By: [Illegible]
                                        Its: Vice President

                                        ENVIROTEST TECHNOLOGIES, INC.

                                        By:
                                        Its:


                                        /s/ Mark D. Frost
                                        -----------------------------
                                        Mark D. Frost



Silvia M. Frost, as wife of Mark D. Frost, hereby acknowledges that she has read
the foregoing agreement and agrees to be bound by its terms.


/s/ Silvia M. Frost
- ------------------------
Silvia M. Frost


Dated: 5/27/98
      --------------


                                       8


<PAGE>

                                                         EXHIBIT 10.128



                         ENVIROTEST SYSTEMS CORP.
                          6903 ROCKLEDGE DRIVE
                           BETHESDA, MD 20817

                             June 4, 1998

Mr. John Pachuta
6721 E. McDole Lane
Tuscan, AZ 85750

Dear John:

     This letter agreement will confirm the terms of your continued 
employment with Envirotest Systems Corp. (the "Company"), effective June 4, 
1998.

     As of June 1, 1998, you will be appointed Vice President of Engineering 
of the Company. You agree to devote your full time and attention to your 
duties as Vice President of Engineering and exercise your best efforts in the 
responsibilities reasonably delegated to you by the Company's management and 
Board of Directors.

     During your employment as Vice President of Engineering of the Company, 
you will be paid an annual salary of $150,000, payable in accordance with the 
Company's customary payroll practices. In addition, you will be entitled, 
during your employment, to all other employee benefits commensurate with your 
position as Vice President of Engineering and existing Company policy.

     In the event of, prior to June 1, 1999, (i) a material diminution in 
your position or duties followed by your subsequent resignation or (ii) a 
termination of your employment by the Company without "Cause" (as defined 
below), you will be entitled to receive a continuation of your base salary 
(the "Severance Payment") and the employee benefits described above until 
June 1, 1999. The Severance Payment will be payable to you in accordance with 
the Company's customary payroll practices. If you elect to remain in the 
employ of the Company following a material diminution in your position or 
duties, your base salary would remain at $150,000 through June 1, 1999, and 
your employee benefits for such period would remain as described above.

     For purposes of this letter agreement, "Cause" means your (i) conviction 
of a felony or (ii) gross misconduct.

<PAGE>

                                       2

     The Company will also indemnify you, on an after-tax basis, for any 
increase in federal and state income taxes you incur for your 1997 and 1998 
tax year returns as a result of your reassignment from Egypt to the United 
States.

     This letter agreement will be governed and construed in accordance with 
the laws of the State of Maryland. The terms of this letter agreement will be 
binding upon and will inure to the benefit of your and the Company's 
respective heirs, successors and assigns. This letter agreement constitutes 
our entire agreement, and supersedes all prior agreements, with respect to 
the subject matter hereof. Any amendment or modification of the terms of this 
letter agreement may only be made by written amendment signed by you and the 
Company. Any waiver of any provision of this letter agreement will be valid 
only if in a writing which refers specifically to this letter agreement and 
which is signed by the party against whom enforcement of the waiver is sought.

     If you agree with the terms set forth above, please sign the original of 
this letter agreement and return it to me, keeping a copy for your files. We 
look forward to your continued service as part of the Company team.

                                                     Sincerely,

                                                     By: /s/ Chester Davenport
                                                         ---------------------
                                                             Chester Davenport
                                                             Chairman


ACCEPTED AND AGREED:


___________________________________________
John Pachuta

Date: _____________________________________








<PAGE>

                                                                 EXHIBIT 10.129

                              ENVIROTEST SYSTEMS CORP.
                               6903 ROCK LEDGE DRIVE
                                 BETHEDSA, MD 20817


                                    June 4, 1998

C. Michael Alston, Esq.
9706 Mill Race Estates Drive
Vienna, Virginia 22182

Dear Mr. Alston:

     This letter agreement sets forth the terms of your employment 
arrangement with Envirotest Systems Corp. (the "Company"), and amends that 
certain Separation, Release and Waiver Agreement (the "Separation 
Agreement"), dated as of September 30, 1997, by and between you, the Company 
and its affiliates and parents. In addition, this letter agreement amends and 
restates in its entirety the letter agreement dated April 20, 1998 between 
you and the Company. You shall serve as Vice President, General Counsel and 
Secretary for the Company with the salary and other benefits specified in 
paragraphs 1(a)-(e) and 5 of the Separation Agreement. For purposes of this 
letter agreement, the "Separation Date" means the date your current 
employment with the Company terminates.

     You acknowledge that the Company has granted you an option to purchase 
36,667 shares of the Company's Class A common stock, par value $0.01 per 
share (the "Stock"), at the exercise price of $6.750 per share pursuant to a 
grant letter dated February 12, 1998 and attached hereto. The Company has 
taken all action required of the Company to authorize the grant of such 
option and the execution and sending of such grant letter.

     In the event of a "Change of Control" (as defined in such grant letter), 
or, if earlier, upon your termination of your employment for any reason 
(alternatively, the "Trigger Date"), the Company shall (i) pay you a cash 
lump sum in the amount of $123,751.13 and (ii) provide you with the salary 
and benefits specified in the first paragraph of this letter agreement for 
the twelve-month period commencing on the Trigger Date.

     Except as set forth herein, all terms and conditions contained in the 
Separation Agreement shall continue in full force and effect.

<PAGE>

                                       2


     Please acknowledge that this letter sets forth the correct terms of 
your employment arrangements with the Company by signing below.

                                       ENVIROTEST SYSTEMS CORP.

                                       By: /s/ Chester Davenport
                                           --------------------------------
                                           Name: Chester Davenport
                                           Title: Chairman

ACKNOWLEDGED AND AGREED TO:


- ------------------------------
C. Michael Alston



<PAGE>
                                  ENVIROTEST SYSTEMS CORP.
                               EMPLOYMENT AGREEMENT AMENDMENT


     Amendment, of the Employment Agreement dated as of January 1, 1993 (the 
"Employment Agreement"), between ENVIROTEST SYSTEMS CORP, a Delaware 
corporation (the "Company"), and CHESTER C. DAVENPORT (the "Employee"), made 
as of the 4th day of June, 1998.

     WHEREAS, the Employment Agreement provides the Employee with, among 
other things, certain compensation following termination of his employment 
under certain circumstances; and

     WHEREAS, the Company and the Employee desire to amend certain terms and 
conditions of the Employment Agreement;

     NOW, THEREFORE, the parties hereby agree to amend the Employment 
Agreement to provide certain benefits to the Employee in the event of his 
termination of employment under certain circumstances and to secure the 
benefit to the Company of the Employee's agreement to enter into a 
noncompetition agreement applicable following his termination of employment 
in such circumstances as follows:

     1.  SPECIAL TERMINATION.  In the event of a Change of Control (as 
defined in Appendix A hereto), the Employee shall have unilateral right to 
terminate his employment (a "Special Termination") under the Employment 
Agreement for any reason on or within 60 days of the date (the "Closing Date") 
on which such Change of Control is consummated. In the event of a Special 
Termination, the Employee shall be entitled to the following compensation and 
benefits:

     (i)   The Company shall pay the Employee, in a cash lump sum on the date 
  (the "Termination Date") on which such termination of employment occurs, an 
  amount (the "Severance Amount") equal to the sum of the following: (i) 100% 
  of the base salary (with the annual increases described in Paragraph 3 of 
  the Employment Agreement) and bonus the Employee would have received for a 
  period of 24 months after the Termination Date and (ii) 50% of the base 
  salary (with the annual increases described in Paragraph 3 of the 
  Employment Agreement) and bonus he would have received for an additional 
  period of (x) 36 months MINUS (y) the difference between 24 months and the 
  number of months that remained in the Term (as defined in the Employment 
  Agreement) after the Termination Date. The Severance Amount shall be 
  payable to the Employee in lieu of any salary and bonus continuation 
  payments described in Sections 10(b) and 12 of the Employment Agreement.

     (ii)  The Employee shall be provided with all other benefits which the 
  Employee would have been entitled to receive had he remained employed for the 

<PAGE>
                                       2

     remainder of the Term plus 36 months thereafter.  Such benefits shall be 
     provided in lieu of any benefit continuation described in Section 10(b) 
     of the Employment Agreement.

          (iii)     Effective as of the Termination Date, the Company shall 
     sublease its existing office space in Bethesda, Maryland (the "Bethesda 
     Facility") to the Employee for a period of one year.  Such sublease 
     shall require the Employee to pay rent at the same rate as is applicable 
     under the Company's existing lease for the Bethesda Facility.

          (iv)      Effective as of the Termination Date, the Company shall 
     transfer all computer equipment, related hardware and the furniture in 
     use in the Bethesda Facility immediately prior to the Closing Date to the
     Employee at the then fair market value thereof, as agreed to in good 
     faith between the Employee and the Company.

          2.        EQUALIZATION PAYMENTS.  Anything in the Employment 
Agreement to the contrary notwithstanding, if it shall be determined that any 
payment or distribution to or for the benefit of the Employee (whether paid 
or payable or distributed or distributable) pursuant to the terms of the 
Employment Agreement or otherwise (the "Payment") would be subject to the 
excise tax imposed by Section 4999 of the Internal Revenue Code of 1986, as 
amended (the "Code"; and such excise tax, the "Excise Tax"), then the 
Employee shall be entitled to receive from the Company an additional payment 
(the "Gross-Up Payment") in an amount such that the net amount of the Payment 
and the Gross-Up Payment retained by the Employee, after the calculation and 
deduction of all Excise Taxes (including any interest or penalties imposed 
with respect to such taxes) on the Payment and all federal, state and local 
income tax, employment tax and Excise Tax (including any interest or 
penalties imposed with respect to such taxes) on the Gross-Up Payment 
provided for in this paragraph, shall be equal to the Payment.

          Subject to the provisions of the following paragraph, all 
determinations required to be made under this provision, including whether 
and when the Gross-Up Payment is required and the amount of such Gross-Up 
Payment, and the assumptions to be utilized in arriving at such 
determinations shall be made by a nationally recognized certified public 
accounting firm as may be jointly designated by the Employee and the Company 
(the "Accounting Firm") which shall provide detailed supporting calculations 
both to the Company and the Employee within 15 business days of the receipt 
of notice from the Employee that there has been a Payment, or such earlier 
time as is requested by the Company.  All fees and expenses of the Accounting 
Firm shall be borne solely by the Company.  Any Gross-Up Payment shall be 
paid by the Company to the Employee within five days of the receipt of the 
Accounting Firm's determination.  Any determination by the Accounting Firm 
shall be binding upon the Company and the Employee.  As a result of 
uncertainty in the application of Section 4999 of the Code at the time of the 
initial determination by the Accounting Firm hereunder, it is possible that 
the Gross-Up Payment made will have been an amount less than the Company 
should have paid pursuant to this paragraph (the "Underpayment").  In the 
event that the Company exhausts its remedies pursuant to the following 
paragraph and the Employee thereafter is required to make a payment of any 
Excise Tax, the Accounting Firm shall determine the amount of the 
Underpayment and any such Underpayment shall be promptly paid by the Company 
to or for the benefit of the Employee.

<PAGE>

                                       3

     The Employee shall notify the Company in writing of any claim by the 
Internal Revenue Service that, if  successful, would require the payment by 
the company of the Gross-Up Payment. Such notification shall be given as soon 
as practicable after the Employee shall not pay such claim prior to the 
expiration of the 30-day period following the date on which he gives such 
notice to the Company (or such shorter period ending on the date that any 
payment of taxes, interest and/or penalties with respect to such claim is 
due). If the Company notifies the Employee in writing prior to the expiration 
of such period that it desires to contest such claim, the Employee shall:

     (A)  give the Company any information reasonably requested by the 
Company relating to such claim,

     (B)  take such action in connection with contesting such claim as the 
Company shall reasonable request in writing from time to time, including, 
without limitation, accepting legal representation with respect to such claim 
by an attorney reasonably selected by the Company,

     (C)  cooperate with the Company in good faith in order to effectively 
contest such claim and

     (D)  permit the Company to participate in any proceedings relating to 
such claim; PROVIDED, HOWEVER, that the Company shall bear and pay directly 
all costs and expenses (including additional interest and penalties) incurred 
in connection with such contest and shall indemnify the Employee for and hold 
the Employee harmless from, on an after-tax basis, any Excise Tax or income 
tax (including interest and penalties with respect thereto) imposed as a 
result of such representation and payment of all related costs and expenses. 
Without limiting the foregoing provisions of this paragraph, the Company 
shall control all proceedings taken in connection with such contest and, at 
its sole option, may pursue or forego any and all administrative appeals, 
proceedings, hearings and conferences with the taxing authority in respect of 
such claim and may, at its sole option, either direct the Employee to pay the 
tax claimed and sue for a refund or contest the claim in any permissible 
manner, and the  Employee agrees to prosecute such contest to a determination 
before any administrative tribunal, in any court of initial jurisdiction and 
in one or more appellate courts, as the Company shall determine; PROVIDED, 
HOWEVER, that if the Company directs the Employee to pay such claim and sue 
for a refund, the Company shall advance the amount of such payment to the 
Employee, on an interest-free basis, and shall indemnify the Employee for and 
hold the Employee harmless from, on an after-tax basis, any Excise Tax or 
income tax (including interest or penalties with respect thereto) imposed 
with respect to such advance or with respect to any imputed income with 
respect to such advance (including as a result of any forgiveness by the 
Company of such advance); PROVIDED FURTHER, HOWEVER, that any extension of 
the statue of limitations relating to the payment of taxes for the taxable 
year of the Employee with respect to which such contested amount is claimed 
to be due is limited solely to such contested

<PAGE>

                                      4

     amount. Furthermore, the Company's control of the contest shall be 
     limited to issues with respect to which a Gross-Up Payment would be 
     payable hereunder and the Employee shall be entitled to settle or 
     contest, as the case may be, any other issue raised by the Internal 
     Revenue Service or any other taxing authority.

          If, after the receipt by the Employee of an amount advanced by the 
Company pursuant to the preceding paragraph, the Employee becomes entitled to 
receive any refund with respect to such claim, the Employee shall (subject to 
the Company's complying with the requirements of the preceding paragraph) 
promptly pay to the Company the amount of such refund (together with any 
interest paid or credited thereon after taxes applicable thereto). If, after 
the receipt by the Employee of an amount advanced by the Company pursuant to 
this paragraph, a determination is made that the Employee shall not be 
entitled to any refund with respect to such claim and the Company does not 
notify the Employee in writing of its intent to contest such denial of refund 
prior to the expiration of 30 days after such determination, then such 
advance shall be forgiven and shall not be required to be repaid and the 
amount of such advance shall offset, to the extent thereof, the amount of the 
Gross-Up Payment or indemnity payment required to be paid.

          3.   NON-EXCLUSIVITY OF RIGHTS.  Nothing in the Employment 
Agreement shall prevent or limit the Employee's continuing or future 
participation in any benefit plan of the Company for which the Employee may 
qualify, nor shall anything therein limit or otherwise affect such rights as 
the Employee may have under any contract or agreement with the Company or any 
of its affiliates. Amounts which are vested benefits or which the Employee 
is otherwise entitled to receive under any plan, policy, practice, program, 
contract or agreement of the Company at or subsequent to the Termination Date 
shall be payable in accordance with such plan, policy, practice, program, 
contract or agreement except as explicitly modified by the Employment 
Agreement.

          4.   FULL SETTLEMENT.  The Company's obligation to make the 
payments provided for in the Employment Agreement and otherwise to perform 
its obligations thereunder shall not be affected by any set-off, 
counterclaim, recoupment, defense or other claim, right or action which the 
Company may have against the Employee or others. In no event shall the 
Employee be obligated to seek other employment or take any other action by 
way of mitigation of the amounts payable to the Employee under the Employment 
Agreement and such amounts shall not be reduced, whether or not the Employee 
obtains other employment. Notwithstanding the last sentence of Section 23 of 
the Employment Agreement, the Company agrees to pay as incurred, to the 
fullest extent permitted by law, all legal fees and expenses which the 
Employee may reasonably incur as a result of any dispute or contest 
(regardless of the outcome thereof) by the Company, the Employee or others of 
the validity or enforceability of, or liability under, any provision of the 
Employment Agreement or any guarantee of performance thereof.

          5.   NONCOMPETITION: RETURN OF PROPERTY.  (i) In the event of a 
Special Termination, in consideration of the benefits granted to the Employee 
in paragraphs 1 through 4 above, for a period of 24 months after the 
Termination Date, the Employee shall not, without first 

<PAGE>

                                       5

obtaining the written permission of the Board of Directors of the Company, 
directly or indirectly engage in any "business in competition" (as defined 
below) with the Company either as an individual for his own account, or as a 
partner or joint venturer, or as an employee, agent, consultant or salesman 
for any business, or as an officer, director or stockholder of a corporation, 
or otherwise, or directly or indirectly induce any employee of the Company to 
engage in any activity in which the Employee is prohibited from engaging 
under this sentence.  For purposes of this paragraph 5, the phrase "business 
in competition" shall mean the business of vehicle emissions testing.  
Nothing herein contained, however, will prevent the Employee from owning 5% 
or less of the equity or debt securities of any business in competition with 
the Company, if such securities are listed for trading on a national 
securities exchange or are traded in the over-the-counter market.  The 
foregoing restrictions shall apply in lieu of any restrictions described in 
Section 12 of the Employment Agreement.

          (ii)      The Employee acknowledges and agrees that the Company's 
remedies at law for a breach or threatened breach of any of the provisions 
set forth in paragraph (i) above would be inadequate and, in recognition of 
this fact, the Employee agrees that, in the event of such a breach or 
threatened breach, in addition to any remedies at law, the Company, without 
posting any bond, shall be entitled to obtain equitable relief in the form of 
specific performance, a temporary restraining order, temporary or permanent 
injunction or any other equitable remedy which may then be available.

          (iii)     It is expressly understood and agreed that although the 
Employee and the Company consider the restrictions contained in paragraph (i) 
above to be reasonable in scope and duration, if a final judicial 
determination is made by a court of competent jurisdiction that the time or 
territory or any other restriction contained in paragraph (i) above is an 
unenforceable restriction against the Employee, the provisions of such 
paragraph shall not be rendered void but shall be deemed amended to apply as 
to such maximum time and territory and to such maximum extent as such court 
may judicially determine or indicate to be enforceable.  Alternatively, if 
any court of competent jurisdiction finds that any restriction contained in 
paragraph (i) above is unenforceable, and such restriction cannot be amended 
so as to make it enforceable, such finding shall not affect the 
enforceability of any of the other restrictions contained in such paragraph.

          (iv)      The Employee agrees that upon termination of his 
employment with the Company for any reason, he will return to the Company 
promptly all memoranda, books, papers, plans, information, letters and other 
data, and all copies thereof or therefrom, in any way relating to the 
business of the Company.

<PAGE>

                                       6

          This Amendment shall be deemed to form a part of the Employment 
Agreement.  Except as modified by this Amendment, the Employment Agreement 
shall continue in full force and effect.


                                            ENVIROTEST SYSTEMS CORP.


                                            By: /s/ MARK THOMAS
                                                -------------------------------
                                                Name:  MARK THOMAS
                                                Title: Executive Vice President


                                            /s/ CHESTER C. DAVENPORT
                                            -------------------------------
                                            CHESTER C. DAVENPORT

<PAGE>

                                                                APPENDIX A


     "Change of Control" means (i) any sale, transfer or other conveyance 
(other than to the Company or a wholly owned subsidiary of the Company), 
whether direct or indirect, of all or substantially all of the assets of the 
Company, on a consolidated basis, in one transaction or a series of 
related transactions, if, immediately after such transaction, any "person" 
or "group" becomes the "beneficial owner," directly or indirectly, of more 
than 50% of the total voting power entitled to vote in the election of 
directors, managers, or trustees of the transferee, (ii) any "person" or 
"group" is or becomes the "beneficial owner," directly or indirectly, of more 
than 50% of the total voting power of the Voting Stock then outstanding, or 
(iii) during any period of 24 consecutive months, individuals who at the 
beginning of such period constituted the Board of Directors of the Company 
(together with any new directors whose election by such Board or whose 
nomination for election by the shareholders of the Company was approved by a 
vote of a majority of the directors then still in office who were either 
directors at the beginning of such period or whose election or nomination for 
election was previously so approved), cease for any reason to constitute a 
majority of the Board of Directors of the Company then in office; PROVIDED, 
HOWEVER, that for purposes of the Employment Agreement, such Change of Control 
must also result in the Employee ceasing to be the beneficial owner of 10% of 
the Company's common stock.

     For purposes of this definition, (i) the terms "person" and "group" 
shall have the meanings used for purposes of Rules 13d-3 and 13d-5 of the 
Securities Exchange Act of 1934, as amended (the "Exchange Act"), whether or 
not applicable, PROVIDED that no Excluded Person and no person or group 
controlled by Excluded Persons shall be deemed to be a "person" or "group" 
and (ii) the term "beneficial owner" shall have the meaning used in Rules 
13d-3 and 13d-5 under the Exchange Act, whether or not applicable, except 
that a person shall be deemed to have "beneficial ownership" of all such 
shares that any such person has the right to acquire, whether such right is 
exercisable immediately or only after the passage of time or upon the 
occurrence of certain events.

     "Excluded Person" means any beneficial holder of 5% or more of any class 
of common stock of the Company outstanding immediately prior to the 
consummation of the initial underwritten public offering by the Company of 
3,400,000 shares of the Company's Class A Common Stock in April 1993.

     "Voting Stock" means the Capital Stock of the Company having generally 
the right to vote in the election for a majority of the directors of the 
Company.


<PAGE>


                                       AMENDMENT

     AMENDMENT, of the employment agreement by and between ENVIROTEST SYSTEMS 
CORP., a Delaware corporation (the "Company") and RAJ G. MODI, (the 
"Employee") dated January 1, 1996 (the "Agreement"), made as of the 4th day 
of June, 1998.

                                       WITNESSETH:

     WHEREAS, the Company and the Employee entered into the Agreement on 
January 1, 1996; and

     WHEREAS, the Company and the Employee mutually agree to amend certain 
terms and conditions of the Agreement.

     NOW, THEREFORE, the parties hereby agree to amend the Agreement 
effective as of the date of this Amendment is entered into, as follows:

     1.    Section 1(b) of the Agreement shall be amended to read in its 
entirety as follows:

     "The employment of the Employee by the Company hereunder shall commence 
     as of the date hereof and, unless sooner terminated in the manner herein 
     provided, shall terminate on the fourth anniversary hereof (the "Term")."

     2.    Section 8(b) of the Agreement shall be amended to read in its 
entirety as follows:

     "If (i) the Company terminates the employment of the Employee during the 
     Term other than for "cause" (as defined in Paragraph 8(a) of this
     Agreement), or (ii) during the Term there is a change of control of the
     Company and the successor entity (or purchaser) does not accept an
     assignment of this Agreement, or (iii) the terms of the Employee's
     employment are materially adversely changed or duties or responsibilities
     are materially diminished, following a change of control or otherwise
     (including, by way of example and not by limitation, by reason the
     Employee ceasing to be a Vice President and Chief Financial Officer of the
     Company), or (iv) a change of control occurs, as a result of which the
     Company ceases to have any publicly-traded equity securities, whereupon,
     in the case of clauses (ii), (iii) and (iv), the Employee shall have the
     right to consider his employment hereunder to have been terminated by the
     Company by giving written notice to the Company within 10 business days
     after the effective date of such event or the date on which the Employee
     believes that such adverse change has occurred, the action(s) constituting
     such adverse change or diminution, if

<PAGE>

                                       2

     applicable, and the fact that he is terminating this Agreement pursuant
     to this Paragraph 8(b)(ii), (iii) or (iv), as applicable, then (A) the
     Company shall retain Employee and Employee agrees to serve as a consultant
     to the Company for the longer of the remainder of the Term or twenty-four
     (24) months ("Consulting Period"); (B) the Employee's Options shall vest
     as set forth in Section 4(b) above; and (C) the Employee shall be entitled
     to continue to receive (1) on the same schedule as was in existence prior
     to such termination payment of his base salary and all other benefits to
     which he is entitled for the Consulting Period and (2) the pro rata
     portion of any bonus earned by the Employee for the final year in which
     the termination occurred."

     This Amendment supersedes the Amendment dated as of April 21, 1998 
between the Company and the Employee.

                                        ENVIROTEST SYSTEMS CORP.

                                        By:   /s/ MARK THOMAS
                                              ------------------
                                              Name:  MARK THOMAS
                                              Title: Executive Vice President

                                              /s/ RAJ G. MODI
                                              ------------------
                                                  RAJ G. MODI




<PAGE>

                             CONSULTING AGREEMENT


     AGREEMENT dated as of the 4th day of June, 1998, by and between 
ENVIROTEST SYSTEMS CORP., a Delaware corporation ("Envirotest"), and Raj Modi 
(the "Consultant").

     WHEREAS, Envirotest and the Consultant have entered into that certain 
Employment Agreement, dated as of January 1, 1996, as amended (the 
"Employment Agreement"); and

     WHEREAS, Section 8(b)(i), (ii), (iii) and (iv) and Section 21 of the 
Employment Agreement contemplate that, in the circumstances specified 
therein, Envirotest and the Consultant will enter into an agreement for the 
provision of consulting services; and

     WHEREAS, Envirotest and the Consultant desire to enter into an agreement 
specifying the terms and conditions for the consulting services to be 
provided by the Consultant to Envirotest pursuant to Section 8(b)(i), (ii), 
(iii) or (iv) or Section 21 of the Employment Agreement, as applicable.

     NOW, THEREFORE, in consideration of the premises and of the mutual 
promises of each party to the other contained herein, it is hereby mutually 
agreed as follows:

     1.   EFFECTIVENESS; PROVISION OF SERVICES.  (a) This Agreement shall 
become effective on the Effective Date (as defined below). During the 
Consulting Period or Additional Consulting Period, as applicable, the 
consultant shall provide such financial consulting services as are reasonably 
requested in writing by the chief executive officer of Envirotest and as are 
consistent with the Consultant's duties as in effect on the date hereof and 
as reflected in the Employment Agreement, PROVIDED that the Consultant is 
available to provide such services, the Consultant's availability to be 
determined solely by the Consultant. All capitalized terms used in this 
Agreement but not otherwise defined herein shall have the meanings specified 
in the Employment Agreement.

     (b)  In the event that Envirotest terminates the employment of the 
Consultant during the Term, as contemplated by Section 8(b)(i) of the 
Employment Agreement, the "Effective Date," and the first day of the 
Consulting Period, shall be the first business day after such termination is 
effective.

     (c)  In the event that the Consultant has given Envirotest written 
notice terminating his employment with Envirotest as contemplated by Section 
8(b)(ii), (iii) or (iv) of the Employment Agreement, as applicable, the 
"Effective Date," and the first day of the Consulting Period, shall be the 
first business day after such termination is effective.

     (d)  In the event that Envirotest elects to retain the Consultant's 
services pursuant to Section 21 of the Employment Agreement, the "Effective 
Date," and the first day of the Additional Consulting Period, shall be the 
date agreed upon in writing between the Consultant and


<PAGE>


Envirotest. It is understood and agreed that Section 21 of the Employment 
Agreement shall not be applicable where Section 8(b) of the Employment 
Agreement otherwise applies.

     2.   COMPENSATION AND BENEFITS.  In consideration for the consulting 
services to be rendered by the Consultant pursuant to this Agreement, 
Envirotest shall compensate the Consultant as follows:

        (a)  In the event that this Agreement becomes effective pursuant to 
   Section 8(b)(i), (ii), (iii) or (iv) of the Employment Agreement, the 
   Consultant's compensation and benefits shall be as specified in Section 8(b)
   of the Employment Agreement.

        (b)  In the event that this Agreement becomes effective pursuant to 
   Section 21 of the Employment Agreement, the Consultant's compensation and 
   benefits shall be as specified in that Section.

     3.   ASSIGNMENT.  Neither this Agreement nor any interest thereunder shall 
be assignable by either party unless such assignment is mutually agreed to in 
writing by the parties hereto; PROVIDED, HOWEVER, that Envirotest may assign 
this Agreement to any corporation with which Envirotest may merge or 
consolidate, or to which Envirotest may assign substantially all of its 
assets, without obtaining the agreement of the Consultant.

     4.   NOTICES.  All notices, requests, demands and other communications 
hereunder shall be in writing and shall be delivered personally or sent by 
registered or certified mail, return receipt requested, to the other party 
hereto at the following address:

          If to the Consultant:

          Rajendra Modi
          20345 Saratoga Rd. - Los Gatos
          Saratoga, CA 95070

          If to Envirotest:

          Envirotest Systems Corp.
          246 Sobrante Way
          Sunnyvale, California 94086
          Attention: Chief Executive Officer

     5.   ADDITIONAL PROVISIONS.  (a) This Agreement shall be governed by the 
laws of the State of California applicable to agreements made and to be 
performed therein. The titles or headings in this Agreement are for 
convenience only, and shall not affect the interpretation or construction of 
any provision hereof.

                                     2


<PAGE>

          (b)       The relationship of the Consultant to Envirotest is that 
of an independent contractor, and nothing herein shall be construed as 
creating any other relationship.  The Consultant may adopt such arrangements 
as the Consultant may desire in his sole discretion with regard to the 
details of the consulting services to be performed hereunder, the hours 
during which said services are to be provided and the place or places where 
said services are to be furnished.  The Consultant shall be obligated to pay 
any and all applicable state and federal taxes.

          (c)       All materials and equipment furnished by Envirotest, and 
all materials and equipment the cost of which shall be reimbursed to the 
Consultant by Envirotest hereunder, are to be and remain the sole property of 
Envirotest, and are to be returned to Envirotest within ninety days after the 
expiration of this Agreement.

          (d)       The Consultant agrees to promptly disclose to Envirotest 
all inventions, discoveries and improvements made or perfected in the 
performance of the services furnished to Envirotest by the Consultant, or by 
others associated with or used by the Consultant in the conduct of the 
services furnished hereunder.  All such inventions, discoveries or 
improvements and patents therefor shall become the exclusive property of 
Envirotest.  The Consultant hereby undertakes and agrees to execute such 
assignments and other papers which, in the opinion or Envirotest, are 
necessary at any time to permit the filing and prosecution of any 
applications for patents covering the inventions, discoveries or improvement 
or are otherwise required for compliance with the requirements of this 
Section 5(e).  In the event that others are, or may hereafter become, 
associated with the Consultant or be used by the Consultant in connection 
with the services provided hereunder, the Consultant agrees to procure from 
such persons similar agreements and to cooperate with Envirotest in procuring 
execution by such persons of such assignments and other papers as may be 
required.

          (e)       No modification of this Agreement shall be valid unless 
in writing and signed by the duly authorized representatives of the parties 
hereto.

          6.        ENTIRE AGREEMENT.  This Agreement (together with Sections 
9, 20 and 22 of the Employment Agreement and the other provisions of the 
Employment Agreement specifically referred to herein) represents the entire 
agreement between the parties with respect to the subject matter hereof and 
supersedes any and all understandings, prior agreements and representations.



                                       3
<PAGE>

          IN WITNESS WHEREOF, the parties hereto have executed or caused this 
Agreement to be executed by their duly authorized representatives as of the 
day and year first above written.


                                            ENVIROTEST SYSTEMS CORP.


                                            By: /s/ MARK THOMAS
                                                -------------------------------
                                                Name:  MARK THOMAS
                                                Title: Executive Vice President


                                            CONSULTANT


                                            /s/ RAJENDRA MODI
                                            -------------------------------
                                            Rajendra Modi


                                       4


<PAGE>


                                 STATE OF OHIO
                        ENVIRONMENTAL PROTECTION AGENCY
                           CHANGE ORDER FOR ASM 2525

<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<S>                                                                          <C>
1.   DEFINITIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
  A.   APPENDIX 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
2.   ZONE 4, 1, AND 2 CONTRACTS, RFP, RRFP, AND OTHER AGREEMENTS  . . . . . .  1
  A.   Separate Contracts . . . . . . . . . . . . . . . . . . . . . . . . . .  1
  B.   ZONE 4 CONTRACT STATE OF OHIO ENVIRONMENTAL PROTECTION AGENCY RESTATED
  CONTRACT FOR SERVICES . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
  C.   ZONE 1 CONTRACT STATE OF OHIO ENVIRONMENTAL PROTECTION AGENCY RESTATED
  CONTRACT FOR SERVICES . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
  D.   ZONE 2 CONTRACT STATE OF OHIO ENVIRONMENTAL PROTECTION AGENCY RESTATED
  CONTRACT FOR SERVICES . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
  E.   ZONE 4 ZONE 1 AND ZONE 2 CONTRACTS . . . . . . . . . . . . . . . . . .  3
  F.   REQUEST FOR PROPOSAL ("RFP") . . . . . . . . . . . . . . . . . . . . .  3
  G.   RESPONSE OR CONTRACTOR'S RESPONSE TO THE REQUEST FOR PROPOSAL 
       ("RRFP") . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
  H.   OTHER AGREEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
3.   ASM 2525 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
  A.   CONTRACTOR'S PERFORMANCE AND CHANGE ORDER  . . . . . . . . . . . . . .  4
  B.   TECHNICAL SPECIFICATIONS FOR QUICK TEST AND ASM 2525 . . . . . . . . .  4
    1.  GUIDANCE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
    2.  DRAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
    3.  FINAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
  C.   IMPLEMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
    1.  PHASE 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
    2.  PHASE 11  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
  D.   ASM 2525 PLANS AND FINAL REPORTS . . . . . . . . . . . . . . . . . . .  5
    1.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
    2.  SCHEDULE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
  E.   OEPA CHANGE ORDER PAYMENT  . . . . . . . . . . . . . . . . . . . . . .  5
    1.  CONTRACTOR PAYMENT  . . . . . . . . . . . . . . . . . . . . . . . . .  5
    2.  CHANGE ORDER COST . . . . . . . . . . . . . . . . . . . . . . . . . .  6
    3.  OEPA REIMBURSEMENT  . . . . . . . . . . . . . . . . . . . . . . . . .  6
4.  SECTION 2: OVERVIEW OF INSPECTION SYSTEM  . . . . . . . . . . . . . . . .  6
5.  SECTION 5: INSPECTION SYSTEM NETWORK  . . . . . . . . . . . . . . . . . .  6
6.  SECTION 6: STATION SPECIFICATIONS AND REQUIREMENTS  . . . . . . . . . . .  7
7.  SECTION 7: OPERATING AND MANAGEMENT REQUIREMENTS  . . . . . . . . . . . .  8
8.  SECTION 8: EQUIPMENT REQUIREMENT  . . . . . . . . . . . . . . . . . . . .  8
9.  SECTION 9: INSPECTION PROCEDURES  . . . . . . . . . . . . . . . . . . . .  8
10. SECTION 10: DATA ACQUISITION SPECIFICATIONS . . . . . . . . . . . . . . .  9
11. SECTION 11: PROGRAM DOCUMENTATION AND REPORTING
REQUIREMENTS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
12. SECTION 12: COMPUTER SPECIFICATIONS . . . . . . . . . . . . . . . . . . .  9
13. SECTION 13: GENERAL PROVISIONS  . . . . . . . . . . . . . . . . . . . . .  9


                                       i

<PAGE>
<S>                                                                          <C>
APPENDIX 1  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
INDEX OF EXHIBITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
EXHIBIT A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
EXHIBIT 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
A. Functional Requirements  . . . . . . . . . . . . . . . . . . . . . . . . . 16
B. Equipment Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 18
  1. Sample Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
  2. Exhaust Gas Analyzers  . . . . . . . . . . . . . . . . . . . . . . . . . 19
  3. Flow Controller  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
  4. Standard Gas Unit  . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
  5. Chassis Dynamometer. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
  6. Diesel Opacity Meter . . . . . . . . . . . . . . . . . . . . . . . . . . 21
  7. System Down  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
  8. Exhaust Evacuation System  . . . . . . . . . . . . . . . . . . . . . . . 22
  9. Each test facility . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
 10. Each test lane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
 11.  A Gas Cap Leak Test . . . . . . . . . . . . . . . . . . . . . . . . . . 22
C. General System Design Requirements . . . . . . . . . . . . . . . . . . . . 23
D. Quality Assurance and Control Requirements . . . . . . . . . . . . . . . . 24
E. System Acceptance Test Procedures  . . . . . . . . . . . . . . . . . . . . 24
F. Maintenance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
G. System Calibration Surveillance  . . . . . . . . . . . . . . . . . . . . . 25
H. Equipment Requirements for an Enhanced ASM Program . . . . . . . . . . . . 26
EXHIBIT C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
A. Pre-Emissions Visual Safety Compliance Check . . . . . . . . . . . . . . . 27
B. Test Vehicle Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
C. Tampering Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 29
D. Steady-State, Loaded Mode "Quick Test" . . . . . . . . . . . . . . . . . . 30
  1. General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 30
   a. Exhaust gas-sampling algorithm  . . . . . . . . . . . . . . . . . . . . 30
   b. Pass/fail determination . . . . . . . . . . . . . . . . . . . . . . . . 30
   c. Void test conditions  . . . . . . . . . . . . . . . . . . . . . . . . . 30
   d. Multiple exhaust pipes  . . . . . . . . . . . . . . . . . . . . . . . . 30
   e. The test  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
  2. Test sequence -"Quick Test". . . . . . . . . . . . . . . . . . . . . . . 31
  3. Overall test procedure . . . . . . . . . . . . . . . . . . . . . . . . . 31
E. Enhanced ASM 2525 Transient Test Sequence. . . . . . . . . . . . . . . . . 32
F. Gas Cap Pressurization Test Procedures . . . . . . . . . . . . . . . . . . 33
G. Diesel Opacity Inspection Procedure  . . . . . . . . . . . . . . . . . . . 34
  1. Light Duty Diesel Vehicle Opacity Test Procedure . . . . . . . . . . . . 34
H. Post-Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
  1. Passed Vehicles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
  2. Failed Vehicles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
I. The Vehicle Inspection Report. . . . . . . . . . . . . . . . . . . . . . . 35


                                       ii

<PAGE>
<S>                                                                          <C>
J. Vehicle Repair Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
K. Waiver Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
L. Hardship Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
M. Repair Spending Cap  . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
N. Appeals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
0. Recalls  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
EXHIBIT D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
A. Data Storage and Handling. . . . . . . . . . . . . . . . . . . . . . . . . 40
B. Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
  1. Date of Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
  2. Inspection Start and Completion Time . . . . . . . . . . . . . . . . . . 42
  3. Vehicle Identification and Owner Information . . . . . . . . . . . . . . 42
   a. The Vehicle Identification Number (VIN) . . . . . . . . . . . . . . . . 43
   b. The License Plate Number  . . . . . . . . . . . . . . . . . . . . . . . 43
   c. Vehicle Make  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
   d. Model Year  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
   e. Number of Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . 44
   f. Fuel Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
   g. Vehicle Net Weight  . . . . . . . . . . . . . . . . . . . . . . . . . . 45
   h. Registration Expiration Date. . . . . . . . . . . . . . . . . . . . . . 45
  4. Inspection/Reinspection Indicator. . . . . . . . . . . . . . . . . . . . 45
  5. Odometer Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
  6. Date of Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . 45
  7. Inspector Identification Number. . . . . . . . . . . . . . . . . . . . . 45
  8. HC, CO, and NO Emission Data . . . . . . . . . . . . . . . . . . . . . . 45
  9. Diesel Opacity Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 46
 10. Tampering Inspection Results . . . . . . . . . . . . . . . . . . . . . . 47
 11. Pass/Fail Codes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
 12. Overall Pass/Fail Decision . . . . . . . . . . . . . . . . . . . . . . . 48
 13. Certificate Status Code. . . . . . . . . . . . . . . . . . . . . . . . . 48
 14. Certificate Expiration Date  . . . . . . . . . . . . . . . . . . . . . . 49
 15. Other Data Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
 16. Certificate Identification Number. . . . . . . . . . . . . . . . . . . . 50
 17. BARCODE Information. . . . . . . . . . . . . . . . . . . . . . . . . . . 50
C. Vehicle Inspection Reports . . . . . . . . . . . . . . . . . . . . . . . . 50
D. Inspection Data Analysis and Reports . . . . . . . . . . . . . . . . . . . 51
  1. Required Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
  2. Additional Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
  3. Report Deadlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
  4. Reporting of Inspection Results/Documentation. . . . . . . . . . . . . . 52
  5.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
E. Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
EXHIBIT E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
A. Data and Documentation Expectations. . . . . . . . . . . . . . . . . . . . 55
B. Documentation of System Changes. . . . . . . . . . . . . . . . . . . . . . 55


                                      iii

<PAGE>
<S>                                                                          <C>
C. Off-Site Data Repository . . . . . . . . . . . . . . . . . . . . . . . . . 55
EXHIBIT F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
A. Host Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
B. System Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
C. System Computers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
EXHIBIT G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
EXHIBIT H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

</TABLE>

                                       iv


<PAGE>

                                 STATE OF OHIO
                        ENVIRONMENTAL PROTECTION AGENCY

                                 CHANGE ORDER


     THIS CHANGE ORDER FOR SERVICES ("Change Order") issued by the Ohio 
Environmental Protection Agency ("OEPA"), by its Director to Envirotest 
Systems Corp. ("Contractor") changes and restates (1) a contract for services 
between the parties for an automobile inspection and maintenance program in 
Cuyahoga County dated April 25, 1995, ("Zone 4 Contract"); (2) an amended 
contract for services between the parties for Summit, Portage, Medina, Lake, 
Lorain, and Geauga Counties dated April 25, 1995, ("Zone 1 Contract"); and 
(3) a contract for services between the parties for Montgomery, Clark, and 
Greene Counties dated October 24, 1994, ("Zone 2 Contract").

1.   DEFINITIONS

     A.  APPENDIX 1.  The terms used in this Change Order are defined in
         Appendix 1.

2.   ZONE 4, 1, AND 2 CONTRACTS, RFP, RRFP, AND OTHER AGREEMENTS

     The Contractor acknowledges that it has read the Contract Documents, 
understands them and agrees to be bound by their requirements, terms and 
conditions and further agrees that the Contract Documents, as defined herein, 
is the complete and exclusive statement of the Contract between the parties 
and supersedes all proposals, oral or written, and all other communications 
between the parties relating to the subject matter of the Contract.  The 
Contract Documents, unless otherwise provided herein, can only be modified in 
writing, signed by the Contractor and OEPA.

     A.  Separate Contracts

         This Change Order incorporates changes OEPA has made to the 
Contractor's performance and operation requirements under the Zone 4, Zone 1, 
and Zone 2 Contracts.  The parties affirm that, as restated and changed by 
this Change Order, that the Zone 4, Zone 1, and Zone 2 Contracts, as modified 
herein, remain separate and severable agreements between the parties.

     B.  ZONE 4 CONTRACT
         STATE OF OHIO ENVIRONMENTAL PROTECTION AGENCY RESTATED CONTRACT FOR
         SERVICES

         This Restated Contract is entered into by and between Envirotest 
Systems Corp. of Sunnyvale, California ("Contractor") and the Ohio 
Environmental Protection Agency ("OEPA") on the date of execution by the 
Director of OEPA, for Contractor to operate an automobile inspection and 
maintenance program in Cuyahoga County in 

<PAGE>

accordance with the terms, conditions and provisions set forth in the 
Contract.

         In accordance with the terms, conditions and provisions of the 
Contract documents, Contractor shall perform an "enhanced motor vehicle 
inspection and maintenance program" or an "enhanced program" as defined under 
Ohio Rev. Code Section 3704.14(A)(5) that includes an alternative enhanced 
emissions test procedure defined as the "ASM 2525 test" on all applicable 
vehicles in Cuyahoga County for the remaining term of this Contract which 
provides for vehicle testing to commence on January 2, 1996.  The term of 
this Contract shall end on December 31, 2005, unless earlier terminated 
pursuant to the terms, conditions and provisions of this Contract; or if 
otherwise extended at the discretion of the OEPA.

         All test facilities shall be open for fifty-five (55) hours a week, 
fifty-two (52) weeks a year except as exempted pursuant to the Holiday 
Schedule.  Hours of operation shall be 8:00 a.m. to 6:00 p.m., Monday through 
Friday, and 8:00 a.m. to 1:00 p.m. on Saturday.

     C.  ZONE 1 CONTRACT
         STATE OF OHIO ENVIRONMENTAL PROTECTION AGENCY RESTATED CONTRACT FOR
         SERVICES

         This Contract is entered into by and between Envirotest Systems 
Corp. of Sunnyvale, California ("Contractor"), and the Ohio Environmental 
Protection Agency ("OEPA") on the date of execution by the Director of OEPA, 
for Contractor to operate an automobile inspection and maintenance program in 
Summit, Portage, Medina, Lake, Lorain and Geauga Counties in accordance with 
the terms, conditions and provisions set forth in the Contract.

         In accordance with the terms, conditions and provisions of the 
Contract documents, Contractor shall perform an "enhanced motor vehicle 
inspection and maintenance program" or an "enhanced program" as defined under 
Ohio Rev. Code Section 3704.14(A)(5) that includes an alternative enhanced 
emissions test procedure defined as the "ASM 2525 test" on all applicable 
vehicles in the designated counties for the remaining term of this Contract 
which provides for vehicle testing to commence on January 2, 1996.  The term 
of this Contract shall end on December 31, 2005, unless earlier terminated 
pursuant to the terms, conditions and provisions of this Change Order; or if 
otherwise extended at the discretion of the OEPA.

         All test facilities shall be open for fifty-five (55) hours a week, 
fifty-two (52) weeks a year except as exempted pursuant to the Holiday 
Schedule.  Hours of operation shall be 8:00 a.m. to 6:00 p.m., Monday through 
Friday, and 8:00 a.m. to 1:00 p.m. on Saturday.

     D.  ZONE 2 CONTRACT
         STATE OF OHIO ENVIRONMENTAL PROTECTION AGENCY RESTATED CONTRACT FOR
         SERVICES


                                       2

<PAGE>

         This Contract is entered into by and between Envirotest Systems 
Corp. of Sunnyvale, California ("Contractor") and the Ohio Environmental 
Protection Agency ("OEPA") on the date of execution by the Director of OEPA, 
for Contractor to operate an automobile inspection and maintenance program in 
Montgomery, Clark and Greene counties in accordance with the terms, conditions 
and provisions set forth in the Contract.

         In accordance with the terms, conditions and provisions of the 
Contract documents, Envirotest shall perform an "enhanced motor vehicle 
inspection and maintenance program" or an "enhanced program" as defined under 
Ohio Rev. Code Section 3704.14(A)(5) that includes an alternative enhanced 
emission test procedure defined as the "ASM 2525 test" on all applicable 
vehicles in the designated counties for the remaining term of this Contract 
which provides for vehicle testing to commence on January 2, 1996. The term 
of this Contract shall end on December 31, 2005, unless earlier terminated 
pursuant to the terms, conditions and provisions of this Change Order; or if 
otherwise extended at the discretion of the OEPA.

         All test facilities shall be open for fifty-five (55) hours a week, 
fifty-two (52) weeks a year except as exempted pursuant to the Holiday 
Schedule.  Hours of operation shall be 8:00 a.m. to 6:00 p.m., Monday through 
Friday, and 8:00 a.m. to 1:00 p.m. on Saturday.

     E.  ZONE 4 ZONE 1 AND ZONE 2 CONTRACTS

         Any provisions in the Zone 4, Zone 1, and Zone 2 Contracts which 
either (i) no longer have prospective application, (ii) are no longer 
applicable, or (iii) are inconsistent with this Change Order shall be 
disregarded as superseded by this Change Order.

     F.  REQUEST FOR PROPOSAL ("RFP")

         Any RFP provisions which either (i) no longer have prospective 
application, (ii) are no longer applicable, or (iii) are inconsistent with 
this Change Order shall be disregarded as superseded by this Change Order.

     G.  RESPONSE OR CONTRACTOR'S RESPONSE TO THE REQUEST FOR PROPOSAL ("RRFP")

         Any RRFP provisions which either (i) no longer have prospective 
application, (ii) are no longer applicable, or (iii) are inconsistent with 
this Change Order shall be disregarded as superseded by this Change Order.

     H.  OTHER AGREEMENTS

         Any provisions which either (i) no longer have prospective 
application, (ii) are no longer applicable, or (iii) are inconsistent with 
this Change Order shall be disregarded as superseded by this Change Order.


                                       3

<PAGE>

3.   ASM 2525

     A.  CONTRACTOR'S PERFORMANCE AND CHANGE ORDER.  Subject to the terms and 
conditions of this Change Order, the Contractor shall undertake to perform 
the ASM 2525 test following the schedule in Paragraph 3.C. as implemented 
pursuant to the ASM 2525 Conversion Implementation Plan described in 
Paragraph 3.D. on all vehicles for the remainder of the term of the Change 
Order unless a vehicle is exempt from testing under the existing Ohio motor 
vehicle emission inspection and maintenance program, as codified at Ohio Rev. 
Code Section 3704.14.

     B.  TECHNICAL SPECIFICATIONS FOR ASM 2525 AND QUICK TEST.

         1.  GUIDANCE.  The Contractor shall prepare a draft outline of the 
initial technical specifications document in response to Exhibit B through 
Exhibit F for conversion to ASM 2525 guided by the parties' current 
procedures for conducting the Quick Test and the single mode ASM 2525 test 
procedure as specified in Section 85.2(d)(2) of the U.S. EPA ASM 2525 
document and provide it within forty-five (45) Days of the effective date of 
this Change Order to OEPA for its review and approval.  OEPA's review and 
approval shall include the ability to provide comments regarding the 
deficiencies in the work product submitted by the Contractor, including any 
inadequacies, errors and/or omissions.

         2.  DRAFT.  The OEPA shall provide written comments and proposed 
modifications to the initial outline of the technical specifications document 
within fourteen (14) Business Days of receipt.  The Contractor shall submit a 
draft of the technical specifications document to OEPA for its approval 
within ten (10) Business Days of receiving OEPA's written comments and 
proposed modifications.  The OEPA shall provide written comments and proposed 
modifications to the draft technical specifications document within ten (10) 
Business Days of receipt.

         3.  FINAL.  The Contractor shall submit a final version of the 
technical specifications document, which technical specification shall 
include Contractor's response to Exhibits B through F, to OEPA for its 
approval within ten (10) Business Days of receiving OEPA's written comments 
and proposed modifications to the draft technical specifications document, 
which final document shall include any modifications the parties reasonably 
agree to.  OEPA may indicate its approval of the final technical 
specifications document within ten (10) Business Days from the date of its 
receipt by signing the submitted technical specifications document and 
returning it to the Contractor, or OEPA will provide additional comments 
regarding the final version for the Contractor's consideration.  In the event 
the Parties cannot agree on a final version of the document, the Director of 
OEPA shall make a final decision regarding the content of technical 
specifications document within ten (10) Business Days of the Parties 
submission to the Director of a request for dispute resolution.  Upon the 
Contractor's receipt and signature of the final approved technical 
specification document it shall become incorporated as a part of the Change 
Order.


                                       4

<PAGE>

     C.  IMPLEMENTATION.  The implementation of the changes in emission tests 
contemplated by this Change Order will proceed in two phases as follows:

         1.  PHASE I:  Within fifteen (15) Days from the effective date of 
this Change Order or July 1, 1998, whichever date is later, the Contractor 
shall conduct the Quick Test in place of the I/M 240 test.

         2.  PHASE II:  The Contractor shall commence the ASM 2525 within 242 
days from the date the final technical specifications for ASM 2525, as 
referenced in Paragraph 3.B.3., are approved by OEPA, which technical 
specification shall include approved Contractor's response to Exhibits B 
through F.

     D.  ASM 2525 PLANS AND FINAL REPORTS

         1.  The phased implementation of the ASM 2525 test will require 
the following additional plans and reports to be determined in good faith by 
the parties and approved by OEPA after the effective date of this Change 
Order:

             a.  Maintenance and System Calibration Plan;

             b.  Vehicle Repair, Rejection and Inspection Reports;

             c.  Public Information Plan;

             d.  ASM 2525 Conversion Implementation Plan; and

             e.  ASM 2525 Training Plan;

             f.  Ohio Data Specification;

             g.  Compatibility Specification;

             h.  Functionality Specification; and

             i.  Acceptance Test Procedures.

         2.  SCHEDULE.  Within sixty (60) Days after the effective date of 
this Change Order or September 1, 1998, whichever date is earlier, the 
parties shall agree to a schedule of dates by which Contractor shall submit 
outlines, draft, and final plans for the required plans and reports listed 
under Paragraph 3.D.1. for OEPA's approval, in accordance with the guidance, 
review and approval procedure described in Paragraph 3.B.

     E.  OEPA CHANGE ORDER PAYMENT.

         1.  CONTRACTOR PAYMENT.  Contractor shall pay, accrue or otherwise 
incur 


                                       5

<PAGE>

the direct and indirect cost to upgrade testing equipment and
change the performance and operation requirements as described in
Paragraphs 1 through 13 of this Change Order ("Change Order
Cost").

         2.  CHANGE ORDER COST.  The agreement of the Contractor and
OEPA as to the amount of the Change Order Cost to be incurred
from fifteen (15) days from the effective date of this Change
Order, or July 1, 1998 whichever is later, is contained in the
document entitled "OEPA Change Order Cost" attached as Exhibit H.

         3.  OEPA REIMBURSEMENT.  OEPA shall reimburse Contractor at
the end of each calendar month, with the first reimbursement to
be paid on July 30, 1998, pursuant to invoices (including, where
appropriate, sub-contractor invoices for equipment) submitted to
OEPA by the Contractor by the second week of each month.  The
Contractor shall provide a final accounting within thirty (30)
days after receipt of final payment from OEPA.

4.    SECTION 2: OVERVIEW OF INSPECTION SYSTEM

      A.  Section 2.A.9 shall state as follows: "The OEPA will monitor
the Contractor lanes using the 'Maintenance and System Calibration
Plan' for compliance with state and federal laws, regulations and
procedures.  OEPA will monitor the Contractor for compliance with
test methods, hardware and software.  Audits will include
monitoring the inspectors employed by the Contractor.  Monitoring
will consist of overt and covert checks as prescribed by the
'Maintenance and System Calibration Plan.'"


      B.  Section 2.A.11 shall state as follows: "The OEPA enhanced
program, in conjunction with the OBMV, has a registration based
enforcement system that will deny original registrations (new
plates issued to previously registered vehicles) and registration
renewals to those applicants who have failed an emission
inspection unless the applicants have been issued a waiver or a
permanent exemption.  The registration renewal application, sent
by OBMV forty-five (45) days prior to registration expiration,
will notify motorists in affected counties that an emission
inspection is required.  All motorists shall also receive a
notice of the inspection requirement from the Contractor sixty
(60) days prior to registration expiration date in the year they
are required to test under a biennial program.   Notices are to
be sent in this fashion for the term of the Change Order."




5.    SECTION 5: INSPECTION SYSTEM NETWORK

      A.   The third and fourth paragraphs of Section 5.B.6 titled
"Zone #1 (Akron-Cleveland)" and "Zone #2 (Dayton-Springfield)"
shall be replaced with the information contained on the document
entitled "Ohio ASM 2525 Network Design" attached to this Change
Order as Exhibit G.

                                    6

<PAGE>

      B.   The second sentence of Section 5.B.8.a. shall be replaced
with the following: "The Contractor guarantees a maximum daily
average waiting time for each station not to exceed fifteen (15)
minutes."

      C.   Section 5.C.1 shall state as follows: "All test facilities
shall be open for fifty-five (55) hours a week, fifty-two (52)
weeks a year except as exempted pursuant to the Holiday Schedule.
Hours of operation shall be 8:00 a.m. to 6:00 p.m., Monday
through Friday, and 8:00 a.m. to 1:00 p.m. on Saturday."

      D.   Section 5.D shall state as follows: Holiday Schedule and Station
Closure 

          Test stations shall be closed on the following holidays:

          1.     NEW YEAR'S DAY
          2.     MEMORIAL DAY
          3.     INDEPENDENCE DAY
          4.     LABOR DAY
          5.     THANKSGIVING DAY
          6.     CHRISTMAS DAY
          7.     MARTIN LUTHER KING DAY
          8.     PRESIDENTS' DAY
          9.     COLUMBUS DAY
         10.     VETERANS' DAY

      No later than December 1 of each calendar year the Contractor
shall provide a holiday schedule to OEPA.  The parties shall
agree in advance to the holiday schedule.   If a deviation from
the above schedule is desired, the change may be made only with
the prior approval of the OEPA.

      The Contractor, in its sole discretion, may close any station
or any lane in the event the Contractor determines that continued
operation of such station or lane presents a health or safety
hazard to the Contractor's employees or to the public.  The OEPA
must be notified within one hour of such closing.

      E.   Section 5.G.5 shall state as follows: "OEPA retains the
right to audit the Contractor's records and record-keeping
procedures to ascertain the number of tests performed by the
Contractor.  OEPA will provide the Contractor with reasonable
time to respond to inquiries regarding record-keeping
discrepancies.  OEPA audits will be performed in conformance with
the 'Maintenance and System Calibration Plan.'"

6.    SECTION 6: STATION SPECIFICATIONS AND REQUIREMENTS

      A.  Section 6.C.6 shall state as follows: "One inspection site
selected by the Contractor shall serve as the Contractor's
operations headquarters and maintenance facility and shall
provide approximately eight hundred and fifty (850) square feet
of usable office space for a maximum of five (5) OEPA audit
personnel.  For Zone 2, Contractor will make

                                 7

<PAGE>

                               

available for lease by OEPA for its use approximately eight
hundred and fifty (850) square feet.  This space shall have a
public reception area with a greeting window or counter to
provide security for the office staff.  The public reception area
may be included as part of the testing facility lobby.  The
Contractor shall locate their headquarters for Zone 4, Zone 1 and
Zone 2 in central or northern Summit County.  The Contractor may
cease its use of the existing Zone 2 headquarters and maintenance
facility.  Contractor shall also maintain existing office space
for OEPA employees in Zone 1 and Zone 4".  The remaining language
in Section 6.C.6 is not changed.

7.    SECTION 7: OPERATING AND MANAGEMENT REQUIREMENTS

      A.  Section 7.C.1 shall be supplemented by the approved ASM 2525
Training Plan referenced in Paragraph 3.D, which Plan shall
require requisite amount of management and technical training as
approved by OEPA.  Training hours for an inspector shall be
fifty-six (56) hours, with a minimum of sixteen (16) hours in
the classroom and forty (40) hours on the job, provided however,
Contractor shall have the right to provide additional training.

      B.  Section 7.P., fourth sentence beginning "In its Technical
Proposal..." shall be replaced with the following:
"Beginning January 1, 1998 Contractor's public education
budget, on an annual basis, shall not exceed $850,000 a year.
Contractor's budget for conversion is subject to OEPA approval.
Expenses that are a part of that budget that exceed $850,000 in
1998 may be counted toward 1999 expenditures.  Contractor shall
submit by October 1st of each year its public education budget
and proposed activities for the upcoming year for OEPA's review
and approval."

      C.    Section 7.P.1.b. shall state as follows:

         "An inspection notice mailed to each motorist sixty (60) days
prior to his or her registration expiration in the year in which
the motorist is required to test in the biennial enhanced
program.  This mailer shall be published for the extent of the
program.  The Contractor shall be responsible for this mailing
and its costs, but these expenses shall be counted toward the
Contractor's public education expenditures as set forth in Section
7.P.4. OEPA and the Contractor will mutually agree on the mailer's
content and format."

8.    SECTION 8: EQUIPMENT REQUIREMENT

      A.   "ASM 2525 and Quick Test Equipment Requirements", attached as
Exhibit B, and the relevant portions of the documents referenced
in paragraph 3.D.1., replaces Section 8.

9.    SECTION 9: INSPECTION PROCEDURES

      A.   ASM 2525 and Quick Test Inspection Procedures, attached as
Exhibit C, and


                                 8
<PAGE>

the relevant portions of the documents referenced in paragraph 
3.D.1., replaces Section 9.


10.   SECTION 1O: DATA ACQUISITION SPECIFICATIONS

      A.    "ASM 2525 and Quick Test Data Acquisition
Specifications," attached as Exhibit D, and the relevant portions
of the documents referenced in paragraph 3.D.1., replaces Section
10.

11.   SECTION 11:   PROGRAM DOCUMENTATION AND REPORTING REQUIREMENTS:

      A.    "ASM 2525 and Quick Test Program Documentation and Reporting
Requirements," attached as Exhibit E, and the relevant portions
of the documents referenced in paragraph 3. D. 1., replaces
Section 11.

12.   SECTION 12: COMPUTER SPECIFICATIONS

      A.    "ASM 2525 and Quick Test Computer Specifications," attached as
Exhibit F, and the relevant portions of the documents referenced in
paragraph 3.D.1., replaces Section 12.

13.   SECTION 13: GENERAL PROVISIONS

      Section 13.W and Section 7.C.5. shall be replaced with the following 
and Section 13.X shall be deleted:
  
            Ownership and Confidentiality of Information and Use of Program
            Assets.

                Title to all reports, information, data, computer data elements
                and non-system software prepared by the Contractor in the
                performance of this Change Order shall vest in the State.
                Subject to applicable state and federal laws and regulations and
                as otherwise provided herein, the State shall have full and
                complete rights to reproduce, duplicate, disclose and otherwise
                use all such information.  Contractor may use the Program and 
                the information derived therefrom for other revenue producing
                activities as long as such activities (1) are approved by OEPA,
                which such approval shall not be unreasonably withheld; (2) such
                activities are legally permissible; (3) do not involve the
                promotion or sale of any automotive repair service or parts; (4)
                adversely affect wait times, throughput and customer convenience
                and service; or (5) otherwise constitute a conflict of interest
                under Section 13, subsection E hereof.  For purposes of this
                paragraph, the OEPA shall be deemed to have approved the
                requested activity if it has not sent notice of disapproval
                within ten (10) business days of receipt of the Contractor's
                written notice requesting such activity.

                                        9
<PAGE>




                              
                In the event of supplantation of the Contractor by the EPA, the
                Contractor shall grant to the EPA a non-exclusive license for 
                the use of the system software for a period covering the 
                remainder of the term contemplated in this Change Order. Any 
                other records or information furnished to the EPA by the 
                Contractor in performance of the Change Order shall be public
                record.

                All records, information and documentation developed in the
                performance of this contract and/or submitted with the proposal
                is subject to O.R.C. 149.43, the public records law, unless
                otherwise provided herein.


       B.    Section 7.J. shall be deleted and Section 13.U. shall be retitled
             "Payment by the Contractor to Ohio EPA's Motor Vehicle Inspection
             and Maintenance Fund" and state as follows: "The Contractor shall
             collect the test fee in the form of cash or check at the time of
             the inspection, except that the Contractor shall provide
             alternative provisions (upon request) for the billing of federal,
             state, and municipally owned vehicles.  The Contractor shall be
             responsible for, and account for all fees collected, and transfer
             the OEPA's portion of the weekly test fees paid from the cash
             collected or checks paid.  OEPA shall reimburse the Contractor
             for all checks returned for insufficient funds, after the
             Contractor has made reasonable efforts to collect such funds.
             The Contractor shall remit by check, payable to the State of
             Ohio, Motor Vehicle Inspection and Maintenance Fund, within
             fourteen (14) days of the Monday following the close of the
             previous week OEPA's portion of the test fees. The Contractor
             shall pay a penalty of $1,000 per day for each Business Day the
             payment is late."








                               10


<PAGE>


APPENDIX 1

DEFINITIONS

         "ASM 2525" or the "ASM 2525 TEST," except as otherwise
provided, means the final technical specification document as
described in Paragraph 3.B. and the procedures approved by OEPA
by virtue of the Contractor's demonstration to OEPA pursuant to
the acceptance test procedures contained in the ASM 2525
Conversion Implementation Plan.

         "ASM 2525 CONVERSION IMPLEMENTATION PLAN" means the plan
referenced at Paragraph 3.D.1.d.

         "ASM 2525 TRAINING PLAN" means the plan referenced at Paragraph
3.D.1.e.

         "AUTOMOBILE INSPECTION AND MAINTENANCE PROGRAM" or "MOTOR
VEHICLE INSPECTION AND MAINTENANCE PROGRAM" means an "ENHANCED
PROGRAM."

         "BUSINESS DAY" means a day other than a Saturday, Sunday or
other day on which State of Ohio offices are authorized or
required to close.

         "CHANGE ORDER" means an order issued by the Director of OEPA
to the Contractor without competitive bidding pursuant to Ohio
Rev. Code Section 3704.14 and  Section 153.62.

         "CHANGE ORDER COST" shall be Contractor's actual costs
including wages, labor costs other than wages, wage taxes,
materials, equipment costs and rental, insurance, subcontracts
attributable to this Change Order, plus a reasonable sum for
overhead, not to exceed four million one hundred eighty nine
thousand five hundred and 00/100($4,189,500.00) dollars.

         "CONTRACT DOCUMENTS" consists of this Change Order, Exhibits
A through H of this Change Order, the RFP, the RRFP, the Zone 1
Contract, the Zone 2 Contract and Zone 4 Contract, the Ohio
Revised Code Section 3704.14, and Ohio Administrative Code Chapter 3745-
26.

         "DAY" or "DAYS" means a calendar day.

         "DIRECTOR" the Director of the Ohio Environmental Protection
Agency or an authorized representative.

         "ENHANCED PROGRAM," "EMISSION INSPECTIONS," "ENHANCED MOTOR
VEHICLE INSPECTION AND MAINTENANCE PROGRAM," or "EXCHECK" means
an "enhanced program" as defined under Ohio Rev. Code Section  3704.14
(A)(5) which, after the effective date of this Change Order,
shall be the program, procedures, and operations described in
this Change Order, which shall include the "ASM 2525 TEST" and
"QUICK TEST" as implemented pursuant to Paragraph 3.C.


                               11
<PAGE>


         "EQUIPMENT AUDIT" means the equipment audit described in the
MAINTENANCE AND SYSTEM CALIBRATION PLAN.

         "EQUIPMENT PREVENTION MAINTENANCE PROGRAM" means the
equipment prevention maintenance program described in the
MAINTENANCE AND SYSTEM CALIBRATION PLAN.

         "EXTENSION CERTIFICATE" means shall have the same meaning as
set forth in O.A.C. Rule 3745-26-01(M).

         "FACILITY AUDITS" means the OEPA inspections described in the
MAINTENANCE AND SYSTEM CALIBRATION PLAN.

         "GOOD FAITH" means the parties will use all reasonable
efforts to achieve by mutual agreement the goal, agreement,
resolutions or such other action which requires the performance
of both parties under this Change Order.

         "HOLIDAYS" means the holidays set forth at Section 5 of the
Change Order.

         "I/M 240 TEST PROCEDURE" OR "I/M 240 Test" means the I/M 240
test procedure used by the Contractor prior to this Change Order.

         "INCONSISTENT AND NO LONGER APPLICABLE" means those
provisions, standards or agreements of the existing Zone 4, Zone
1, and Zone 2 Contracts, the RFP, the RRFP, and Other Agreements
that are no longer required upon the implementation of the ASM
2525 test as described in paragraph 3.C or differ from the terms
and conditions at this Change Order.

         "LANE CALIBRATION RECORDS AUDIT" means the records audit
described in the MAINTENANCE AND SYSTEM CALIBRATION PLAN.

         "MAINTENANCE AND SYSTEM CALIBRATION PLAN" shall mean the plan
described in Exhibit B through F and developed and approved in
accordance with Paragraph 3.D.1.a.

         "MOTOR VEHICLE EMISSION INSPECTION AND MAINTENANCE PROGRAM"
means an ENHANCED PROGRAM.

         "OPERATING RELIABILITY STANDARDS" means the procedures to be
performed by Contractor described in the MAINTENANCE AND SYSTEM
CALIBRATION PLAN.

         "OBMV" means the Ohio Bureau of Motor Vehicles.

         "OTHER AGREEMENTS" means any agreements between the parties
regarding an automobile inspection and maintenance program
entered into or issued by OEPA prior to the effective date of
this Change Order.

         "PARTY" or "THE PARTIES" means Envirotest Systems Corp.
("Contractor") and the


                               12
<PAGE>


Ohio Environmental Protection Agency ("OEPA") as an agency of the
State of Ohio.

         "PUBLIC INFORMATION PLAN" means OEPA's information program to
introduce the ASM 2525 TEST to the public referenced at Paragraph
3.D.1.c.

         "QUICK TEST" shall mean the test set forth in Exhibit C.

         "REQUIRED PLANS AND REPORTS" are the plans and reports
identified in the Change Order to be produced by Contractor
pursuant to Paragraph 3-D.

         "RFP" means OEPA's Request for Proposal dated January 3,
1994, with a stated February 11, 1994 release date, and all
Addenda thereto.

         "RRFP" means the Contractor's response to the RFP and all Addenda 
thereto.

         "STATE" means the State of Ohio.

         "TECHNICAL SPECIFICATIONS FOR ASM 2525 AND QUICK TEST" means
the functional specifications and requirements referred to in
Paragraph 3.B., described in Exhibits B through F (sometimes
referred to as the "Functional Specifications" or "Technical
Specification" document), which shall support the Acceptance Test
Procedures, Ohio Data Specifications and Compatibility
Specifications referenced in Exhibits B through F and the
relevant portions of the documents referenced in paragraph 3. D.1.

         "TEST STATION" means a facility in which the Contractor
performs EMISSION INSPECTIONS.

         "U.S. EPA ASM 2525 TECHNICAL DOCUMENT" or "U.S. EPA ASM 2525
DOCUMENT" means the document entitled "U.S. EPA Acceleration
Simulation Mode Test Procedures, Emission Standards, Quality
Control Requirements, and Equipment Specifications Technical
Guidance" (EPA-AA-RSPD-IM-96-2)" dated July 1996, attached to
this Change Order as Exhibit A.

         "VEHICLE REPAIR, REJECTION AND INSPECTION REPORTS" mean the
reports referenced at Paragraph 3.D.1.b and defined in O.A.C.
Rule 3745-26-01 (II).

         "ZONE 1 CONTRACT" means an amended contract for services
between the parties for Summit, Portage, Medina, Lake, Lorain,
and Geauga Counties dated April 25, 1995.

         "ZONE 2 CONTRACT" means a contract for services between the
parties for Montgomery, Clark, and Greene counties dated October
24, 1994.

         "ZONE 4 CONTRACT" means the contract for services between the
parties for an automobile inspection and maintenance program in
Cuyahoga County dated April 25, 1995.


                                  13
<PAGE>


                       INDEX OF EXHIBITS

A.       U.S. EPA ASM 2525 Document

B.       ASM 2525 and Quick Test Equipment Requirements

C.       ASM 2525 and Quick Test Inspection Procedures

D.       ASM 2525 and Quick Test Data Acquisition Specification

E.       ASM 2525 and Quick Test Documentation and Reporting Requirements

F.       ASM 2525 and Quick Test Computer Specifications

G.       Ohio ASM 2525 Network Design

H.       OEPA Change Order Cost



                                  14


<PAGE>


                                 EXHIBIT A








                               15


<PAGE>

United States                                             EPA-AA-RSPD-IM-96-2
Environmental Protection Agency                                     July 1996

- -------------------------------------------------------------------------------
Air
- -------------------------------------------------------------------------------



[LOGO]  ACCELERATION SIMULATION MODE TEST
        PROCEDURES, EMISSION STANDARDS, QUALITY
        CONTROL REQUIREMENTS, AND EQUIPMENT
        SPECIFICATIONS




                           TECHNICAL GUIDANCE






- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------

<PAGE>


                            Table of Contents

<TABLE>
<CAPTION>
                                                                          Page
<S>                                                                       <C>
Section 85.1      Test Standards and Calculations                            1
                     (a) Emissions Standards                                 1
                     (b) Test Score Calculation                              7

Section 85.2      Test Procedures                                            9
                     (a)  General Requirements.                              9
                     (b)  Vehicle Pre-inspection and Preparation.            9
                     (c)  Equipment Preparation and Settings.               10
                     (d)  Test Procedure.                                   12
                     (e)  Second Chance Tests.                              15

Section 85.3      Test Equipment Specifications                             16
                     (a) Dynamometer Specifications.                        16
                     (b) Emission Sampling System.                          19
                     (c) Analytical Instruments.                            21
                     (d) Automated Test Process Software and Displays.      24

Section 85.4      Quality Control Requirements                              26
                     (a) General Requirements                               26
                     (b) Dynamometer                                        26
                     (c) Emission Sampling System.                          30
                     (d) Analytic Instruments.                              31

Section 85.5      Test Record Information                                   38
                     (a) General Information.                               38
                     (b) Ambient Test Conditions.                           38
                     (c) ASM Mode or Modes.                                 38
                     (d) Diagnostic/Quality Assurance Information.          38

</TABLE>

<PAGE>

Section 85.1   TEST STANDARDS AND CALCULATIONS


(a)   Emissions Standards

      (1)  START-UP ASM STANDARDS.  Start-up standards should be used during 
           the first cycle of the program.  The exhaust emissions standards 
           for the following model years and vehicle types are 
           cross-referenced by the number in the column in Section 85.1 
           (a)(3), as noted in the column headings:

           (i)  LIGHT DUTY VEHICLES.
<TABLE>
<CAPTION>
           Model Years           Hydrocarbons                     Carbon Monoxide                  Oxides of Nitrogen
           -----------           ------------                     ---------------                  ------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1994+ Tier 1                 1                                 21                                 41
           1991-1995                    2                                 22                                 42
           1983-1990                    4                                 23                                 43
           1981-1982                    4                                 26                                 43
           1980                         4                                 26                                 48
           1977-1979                   11                                 30                                 48
           1975-1976                   11                                 30                                 50
           1973-1974                   13                                 34                                 50
           1968-1972                   13                                 34                                 51
</TABLE>

           (ii)  HIGH-ALTITUDE LIGHT DUTY VEHICLES.

<TABLE>
<CAPTION>

           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ----------------                ------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1983-1984                    4                                 26                                 43
           1982                         4                                 29                                 43
</TABLE>

           (iii)  LIGHT DUTY TRUCKS 1 (LESS THAN 6000 POUNDS GVWR).

<TABLE>
<CAPTION>

           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>                        <C>                   <C>                               <C>
           1994+ Tier 1 < OR = 3750 LVW   1                               21                                41
           1994+ Tier 1 >      3750 LVW   2                               22                                42
           1991-1995                      5                               26                                43
           1988-1990                      7                               29                                44
           1984-1987                      7                               29                                49
           1979-1983                     11                               31                                49
           1975-1978                     12                               32                                50
           1973-1974                     13                               34                                50
           1968-1972                     13                               34                                51

</TABLE>

           (iv)  HIGH-ALTITUDE LIGHT DUTY TRUCKS 1 (LESS THAN 6000 POUNDS GVWR).

<TABLE>
<CAPTION>

           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
</TABLE>

PAGE 1                            7/2/96        TEST STANDARDS AND CALCULATIONS

<PAGE>
<TABLE>
           <S>             <C>                              <C>                               <C>
           1991+                          6                               28                                43
           1988-1990                      9                               30                                44
           1984-1987                      9                               30                                49
           1982-1983                     12                               33                                49
</TABLE>
           (v)  LIGHT DUTY TRUCKS 2 (GREATER THAN 6000 POUNDS GVWR).

<TABLE>
<CAPTION>

           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>                      <C>                     <C>                               <C>

           1994+ Tier 1 < OR = 5750 LVW 2                                  22                                42
           1994+ Tier 1 >      5750 LVW 5                                  26                                45
           1991-1995                    5                                  26                                46
           1988-1990                    7                                  29                                47
           1984-1987                    7                                  29                                49
           1979-1983                   11                                  31                                49
           1975-1978                   12                                  32                                50
           1973-1974                   13                                  34                                50
           1968-1972                   13                                  34                                51
</TABLE>
           (vi)  HIGH-ALTITUDE LIGHT DUTY TRUCKS 2 (GREATER THAN 6000 POUNDS 
                 GVWR).

<TABLE>
<CAPTION>

           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1991+                       6                                  28                                46
           1988-1990                   9                                  30                                47
           1984-1987                   9                                  30                                49
           1982-1983                  12                                  33                                49
</TABLE>

      (2)  FINAL ASM STANDARDS.  The following exhaust emissions standards are
           designed to achieve the emission reduction credits issued by EPA.  
           They should only be used after at least one cycle of operation using 
           the start-up standards in Section 85.1(a)(1). The exhaust emissions 
           standards for the following model years and vehicle types are 
           cross-referenced by the number in the column in Section 85.1(a)(3), 
           as noted in the column headings:

           (i)  LIGHT DUTY VEHICLES.

<TABLE>
<CAPTION>
           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1994+ Tier 1                1                                  21                                41
           1983-1995                   1                                  21                                41
           1981-1982                   1                                  23                                41
           1980                        1                                  23                                45
           1977-1979                   6                                  27                                45
           1975-1976                   6                                  27                                48
           1973-1974                  10                                  32                                48
           1968-1972                  10                                  32                                49
</TABLE>

PAGE 2                            7/2/96        TEST STANDARDS AND CALCULATIONS

<PAGE>


           (ii)  HIGH-ALTITUDE LIGHT DUTY VEHICLES).

<TABLE>
<CAPTION>
           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1983-1984                   2                                  23                                41
           1982                        2                                  23                                41
</TABLE>

           (iii)  LIGHT DUTY TRUCKS 1 (LESS THAN 6000 POUNDS GVWR).

<TABLE>
<CAPTION>
           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1994+ Tier 1               1                                   21                                41
           1988-1995                  3                                   24                                42
           1984-1987                  3                                   24                                46
           1979-1983                  8                                   28                                46
           1975-1978                  9                                   29                                48
           1973-1974                 10                                   32                                48
           1968-1972                 10                                   32                                49
</TABLE>

          (iv)  HIGH-ALTITUDE LIGHT DUTY TRUCKS 1 (LESS THAN 6000 POUNDS GVWR).

<TABLE>
<CAPTION>
           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1988+                      4                                   26                                42
           1984-1987                  4                                   26                                46
           1982-1983                  9                                   30                                46
</TABLE>

           (v)  LIGHT DUTY TRUCKS 2 (GREATER THAN 6000 POUNDS GVWR).

<TABLE>
<CAPTION>
           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1994+ Tier 1              1                                   21                                 41
           1988-1995                 3                                   24                                 44
           1984-1987                 3                                   24                                 46
           1979-1983                 8                                   28                                 46
           1975-1978                 9                                   29                                 48
           1973-1974                10                                   32                                 48
           1968-1972                10                                   32                                 49
</TABLE>

           (vi)  HIGH-ALTITUDE LIGHT DUTY TRUCKS 2 (GREATER THAN 6000 POUNDS 
                 GVWR).

<TABLE>
<CAPTION>
           Model Years           Hydrocarbons                      Carbon Monoxide                 Oxides of Nitrogen
           -----------           ------------                      ---------------                 -------------------
                           Table Section 85.1 (a)(3)(i)     Table Section 85.1 (a)(3)(ii)     Table Section 85.1 (a)(3)(iii)
           <S>             <C>                              <C>                               <C>
           1988+                     4                                   26                                 44
           1984-1987                 4                                   26                                 46
           1982-1983                 9                                   30                                 46
</TABLE>

PAGE 3                            7/2/96        TEST STANDARDS AND CALCULATIONS
<PAGE>

    (3) ASM 2525 and 5015 Concentration Tables
 
       (i) ASM2525 and ASM5015 Hydrocarbon (ppm C6) Table
<TABLE>
<CAPTION>
  COLUMN #          1            1            2            2            3            3            4            4            5
     ETW          5015         2525         5015         2525         5015         2525         5015         2525         5015
- -------------     -----        -----        -----        -----        -----        -----        -----        -----        -----
<S>            <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
       1750           142          136          224          216          257          249          291          282          324
       1875           134          129          212          205          243          236          275          266          306
       2000           127          123          201          194          230          223          260          252          289
       2125           121          116          191          184          219          212          246          239          274
       2250           115          111          182          175          208          201          234          227          260
       2375           109          106          173          167          198          192          223          216          247
       2500           105          101          166          160          189          183          212          206          236
       2625           100           97          159          153          181          175          203          197          225
       2750            96           93          152          147          173          168          194          189          216
       2875            92           89          146          141          167          161          187          181          207
       3000            89           86          141          136          160          155          180          174          199
       3125            86           83          136          132          155          150          173          168          191
       3250            83           80          132          127          149          145          167          162          185
       3375            81           78          128          123          145          140          162          157          179
       3500            78           76          124          120          140          136          157          152          173
       3625            76           74          120          117          136          132          152          148          168
       3750            74           72          117          114          133          129          148          144          163
       3875            72           70          114          111          129          125          144          140          159
       4000            71           68          112          108          126          122          140          137          155
       4125            69           67          109          106          123          119          137          133          151
       4250            67           65          107          103          120          117          134          130          147
       4375            66           64          104          101          118          114          131          127          144
       4500            65           63          102           99          115          112          128          124          141
       4625            63           61          100           97          113          109          125          122          137
       4750            62           60           98           95          110          107          122          119          134
       4875            61           59           96           93          108          105          120          117          132
       5000            60           58           94           92          106          103          117          114          129
       5125            58           57           93           90          104          101          115          112          126
       5250            57           56           91           88          102           99          112          110          123
       5375            56           55           89           86          100           97          110          107          121
       5500            55           54           87           85           98           95          108          105          118
       5625            54           53           86           83           96           93          106          103          116
       5750            53           52           84           82           94           91          104          101          113
       5875            52           51           83           80           92           90          102           99          111
       6000            51           50           81           79           90           88          100           97          109
       6125            50           49           80           78           89           86           98           95          107
       6250            50           48           79           76           87           85           96           94          105
       6375            49           48           77           75           86           84           95           92          103
       6500            48           47           76           74           85           83           93           91          102
       6625            48           46           76           74           84           82           92           90          101
       6750            47           46           75           73           83           81           91           89          100
       6875            47           46           75           73           83           81           91           89           99
       7000            47           46           74           72           83           80           91           88           99
       7125            47           46           74           72           82           80           90           88           98
       7250            47           46           74           72           82           80           90           88           98
       7375            47           46           74           72           82           80           90           88           98
       7500            47           46           74           72           82           80           90           88           98

<CAPTION>
  COLUMN #          5            6            6            7            7            8            8            9            9
     ETW          2525         5015         2525         5015         2525         5015         2525         5015         2525
- -------------     -----        -----        -----        -----        -----        -----        -----        -----        -----
<S>            <C>          <C>          <C>          <C>          <C>          <C>          <C>        <C>              <C>
       1750           315          374          364          390          381          407          397          457          447
       1875           297          353          344          368          359          384          375          431          421
       2000           281          333          325          348          339          363          354          407          398
       2125           267          316          308          329          321          343          335          385          376
       2250           253          299          292          312          305          325          318          365          357
       2375           241          284          277          297          290          309          302          346          339
       2500           230          271          264          283          276          294          288          329          322
       2625           219          259          252          270          263          281          274          314          307
       2750           210          247          241          258          252          269          262          300          294
       2875           201          237          231          247          241          257          251          287          281
       3000           194          228          222          237          232          247          241          276          270
       3125           186          219          214          228          223          238          232          265          260
       3250           180          211          206          220          215          229          224          256          250
       3375           174          204          199          213          208          221          216          247          241
       3500           169          198          193          206          201          214          209          239          234
       3625           164          192          187          200          195          207          203          231          226
       3750           159          186          182          194          189          201          197          224          220
       3875           155          181          177          188          184          196          191          218          213
       4000           151          176          172          183          179          191          186          212          208
       4125           147          172          168          179          175          186          181          206          202
       4250           143          167          164          174          170          181          177          201          197
       4375           140          164          160          170          166          177          173          196          192
       4500           137          160          156          166          162          172          169          192          188
       4625           134          156          152          162          159          169          165          187          183
       4750           131          153          149          159          155          165          161          183          179
       4875           128          149          146          155          152          161          157          179          175
       5000           126          146          143          152          148          157          154          175          171
       5125           123          143          139          148          145          154          150          171          167
       5250           120          140          136          145          142          150          147          167          163
       5375           118          137          133          142          138          147          144          163          159
       5500           115          134          130          139          136          144          141          159          156
       5625           113          131          128          136          133          141          138          156          152
       5750           111          128          125          133          130          138          135          152          149
       5875           108          125          122          130          127          135          132          149          146
       6000           106          123          120          127          124          132          129          146          143
       6125           104          120          118          125          122          129          126          143          140
       6250           102          118          115          123          120          127          124          140          137
       6375           101          116          113          120          118          125          122          138          135
       6500            99          114          112          119          116          123          120          136          133
       6625            98          113          110          117          114          121          119          134          131
       6750            97          112          109          116          113          120          117          132          129
       6875            97          111          109          115          113          119          117          132          129
       7000            96          111          108          115          112          119          116          131          128
       7125            96          111          108          115          112          119          116          131          128
       7250            96          111          108          115          112          119          116          131          128
       7375            96          111          108          115          112          119          116          131          128
       7500            96          111          108          115          112          119          116          131          128
 
<CAPTION>
  COLUMN #         10           10           11           11           12           12          13         13
     ETW          5015         2525         5015         2525         5015         2525        5015       2525
- -------------     -----        -----        -----        -----        -----        -----     ---------  ---------
<S>            <C>          <C>          <C>          <C>          <C>          <C>          <C>        <C>       
       1750           706          694          774          761          843          828        1118       1098
       1875           665          653          729          717          794          780        1052       1034
       2000           627          616          688          676          749          736         992        975
       2125           592          582          650          638          707          695         938        921
       2250           560          551          615          604          669          658         887        872
       2375           531          522          583          573          635          624         841        827
       2500           505          496          554          544          603          593         800        786
       2625           481          472          528          518          574          564         761        748
       2750           459          451          503          495          548          539         726        714
       2875           439          431          481          473          524          515         695        683
       3000           420          413          461          453          502          493         666        654
       3125           404          397          443          435          482          474         639        628
       3250           388          382          426          419          464          456         615        604
       3375           374          368          411          404          447          440         593        583
       3500           362          355          397          390          432          424         573        563
       3625           350          344          384          377          418          411         554        544
       3750           339          333          372          365          405          398         537        527
       3875           329          323          361          355          393          386         521        512
       4000           320          314          351          345          382          375         506        497
       4125           311          305          341          335          371          365         492        484
       4250           303          297          332          326          361          355         479        471
       4375           295          290          323          318          352          346         467        459
       4500           287          282          315          310          343          337         455        447
       4625           280          275          308          302          335          329         444        436
       4750           273          269          300          295          327          321         433        425
       4875           267          262          293          288          319          313         423        415
       5000           260          256          286          281          311          305         412        405
       5125           254          250          279          274          304          298         402        395
       5250           248          244          272          267          296          291         393        386
       5375           242          238          266          261          289          284         383        376
       5500           236          232          259          253          282          277         374        367
       5625           231          226          253          248          276          271         365        359
       5750           225          221          247          243          269          264         357        350
       5875           220          216          241          237          263          258         348        342
       6000           215          211          236          232          257          252         341        334
       6125           210          206          231          227          251          247         333        327
       6250           206          202          226          222          246          242         326        320
       6375           202          198          222          218          242          237         320        314
       6500           199          195          218          214          238          233         315        309
       6625           196          192          215          211          234          230         310        304
       6750           194          190          213          209          232          227         307        301
       6875           193          189          211          207          230          225         305        299
       7000           192          188          211          207          229          225         304        298
       7125           192          188          211          206          229          225         304        298
       7250           192          188          211          206          229          225         304        298
       7375           192          188          211          206          229          225         304        298
       7500           192          188          211          206          229          225         304        298
</TABLE>

PAGE 4

<PAGE>
             (ii)  ASM2525 and ASM5015 Carbon Monoxide (%CO) Table
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
 Column #    21      21      22      22      23      23      24      24      25      25      26      26      27      27
- ----------
   ETW      5015    2525    5015    2525    5015    2525    5015    2525    5015    2525    5015    2525    5015    2525
- -------------------------------------------------------------------------------------------------------------------------
<S>        <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
1750        0.80    0.77    1.26    1.22    1.64    1.83    2.02    2.43    2.21    2.73    2.78    3.64    2.97    3.94
1875        0.75    0.73    1.19    1.16    1.55    1.72    1.91    2.29    2.09    2.58    2.63    3.43    2.81    3.71
2000        0.71    0.69    1.13    1.09    1.47    1.63    1.81    2.17    1.97    2.43    2.48    3.24    2.65    3.51
2125        0.68    0.66    1.07    1.04    1.39    1.54    1.71    2.05    1.87    2.30    2.35    3.06    2.51    3.32
2250        0.64    0.62    1.02    0.99    1.32    1.47    1.62    1.94    1.77    2.18    2.23    2.90    2.38    3.14
2375        0.61    0.59    0.97    0.94    1.26    1.39    1.54    1.85    1.69    2.07    2.12    2.76    2.26    2.98
2500        0.59    0.57    0.93    0.90    1.20    1.33    1.47    1.76    1.61    1.97    2.02    2.62    2.15    2.84
2625        0.56    0.54    0.89    0.86    1.15    1.27    1.41    1.68    1.53    1.88    1.92    2.50    2.05    2.70
2750        0.54    0.52    0.85    0.82    1.10    1.21    1.34    1.60    1.47    1.80    1.84    2.39    1.96    2.58
2875        0.52    0.50    0.82    0.79    1.05    1.16    1.29    1.54    1.41    1.72    1.76    2.29    1.88    2.47
3000        0.50    0.48    0.79    0.76    1.01    1.12    1.24    1.48    1.35    1.66    1.69    2.19    1.80    2.37
3125        0.48    0.46    0.76    0.73    0.98    1.08    1.19    1.42    1.30    1.59    1.63    2.11    1.74    2.28
3250        0.46    0.45    0.73    0.71    0.94    1.04    1.15    1.37    1.26    1.53    1.57    2.03    1.67    2.20
3375        0.45    0.43    0.71    0.69    0.91    1.00    1.11    1.32    1.21    1.48    1.52    1.96    1.62    2.12
3500        0.44    0.42    0.69    0.67    0.88    0.97    1.08    1.28    1.17    1.43    1.47    1.89    1.56    2.05
3625        0.42    0.41    0.67    0.65    0.86    0.94    1.05    1.24    1.14    1.39    1.42    1.84    1.52    1.98
3750        0.41    0.40    0.65    0.63    0.83    0.92    1.02    1.20    1.11    1.35    1.38    1.78    1.47    1.92
3875        0.40    0.39    0.63    0.61    0.81    0.89    0.99    1.17    1.08    1.31    1.34    1.73    1.43    1.87
4000        0.39    0.38    0.62    0.60    0.79    0.87    0.96    1.14    1.05    1.28    1.31    1.68    1.39    1.82
4125        0.38    0.37    0.60    0.58    0.77    0.85    0.94    1.11    1.02    1.24    1.27    1.64    1.36    1.77
4250        0.37    0.36    0.59    0.57    0.75    0.83    0.92    1.08    1.00    1.21    1.24    1.60    1.32    1.72
4375        0.36    0.35    0.58    0.56    0.74    0.81    0.89    1.06    0.97    1.18    1.21    1.56    1.29    1.68
4500        0.36    0.35    0.57    0.55    0.72    0.79    0.87    1.03    0.95    1.16    1.18    1.52    1.26    1.64
4625        0.35    0.34    0.55    0.54    0.70    0.77    0.85    1.01    0.93    1.13    1.15    1.48    1.23    1.60
4750        0.34    0.33    0.54    0.53    0.69    0.76    0.84    0.99    0.91    1.10    1.13    1.45    1.20    1.57
4875        0.34    0.33    0.53    0.52    0.67    0.74    0.82    0.97    0.89    1.08    1.10    1.42    1.17    1.53
5000        0.33    0.32    0.52    0.51    0.66    0.73    0.80    0.95    0.87    1.05    1.08    1.38    1.15    1.49
5125        0.32    0.31    0.51    0.50    0.65    0.71    0.78    0.92    0.85    1.03    1.05    1.35    1.12    1.46
5250        0.32    0.31    0.50    0.49    0.63    0.70    0.77    0.90    0.83    1.01    1.03    1.32    1.10    1.43
5375        0.31    0.30    0.49    0.48    0.62    0.68    0.75    0.89    0.81    0.99    1.01    1.29    1.07    1.39
5500        0.30    0.30    0.48    0.47    0.61    0.67    0.73    0.87    0.80    0.97    0.99    1.26    1.05    1.36
5625        0.30    0.29    0.47    0.46    0.59    0.65    0.72    0.85    0.78    0.94    0.97    1.24    1.03    1.33
5750        0.29    0.29    0.46    0.45    0.58    0.64    0.70    0.83    0.76    0.92    0.94    1.21    1.01    1.30
5875        0.29    0.28    0.45    0.44    0.57    0.63    0.69    0.81    0.75    0.91    0.92    1.18    0.98    1.27
6000        0.28    0.28    0.44    0.44    0.56    0.62    0.67    0.80    0.73    0.89    0.91    1.16    0.96    1.25
6125        0.28    0.27    0.44    0.43    0.55    0.61    0.66    0.78    0.72    0.87    0.89    1.13    0.94    1.22
6250        0.27    0.27    0.43    0.42    0.54    0.60    0.65    0.77    0.71    0.85    0.87    1.11    0.93    1.20
6375        0.27    0.26    0.42    0.42    0.53    0.59    0.64    0.76    0.69    0.84    0.86    1.09    0.91    1.18
6500        0.26    0.26    0.42    0.41    0.52    0.58    0.63    0.74    0.68    0.83    0.84    1.08    0.90    1.16
6625        0.26    0.26    0.41    0.41    0.52    0.57    0.62    0.73    0.67    0.82    0.83    1.06    0.88    1.14
6750        0.26    0.26    0.41    0.41    0.51    0.57    0.61    0.73    0.67    0.81    0.82    1.05    0.88    1.13
6875        0.26    0.25    0.40    0.40    0.51    0.56    0.61    0.72    0.66    0.80    0.82    1.04    0.87    1.12
7000        0.25    0.25    0.40    0.40    0.51    0.56    0.61    0.72    0.66    0.80    0.82    1.04    0.87    1.12
7125        0.25    0.25    0.40    0.40    0.51    0.56    0.61    0.72    0.66    0.80    0.81    1.04    0.87    1.12
7250        0.25    0.25    0.40    0.40    0.50    0.56    0.61    0.72    0.66    0.80    0.81    1.04    0.86    1.12
7375        0.25    0.25    0.40    0.40    0.50    0.56    0.61    0.72    0.66    0.80    0.81    1.04    0.86    1.12
7500        0.25    0.25    0.40    0.40    0.50    0.56    0.61    0.72    0.66    0.80    0.81    1.04    0.86    1.12
- -------------------------------------------------------------------------------------------------------------------------
 
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
 Column #    28      28      29      29      30      30      31      31      32      32      33      33      34      34
- ----------
   ETW      5015    2525    5015    2525    5015    2525    5015    2525    5015    2525    5015    2525    5015    2525
- -------------------------------------------------------------------------------------------------------------------------
<S>        <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
1750        3.16    4.24    3.54    4.85    3.92    5.45    4.31    6.06    5.07    7.26    5.26    7.44    8.02    9.90
1875        2.98    4.00    3.34    4.57    3.70    5.14    4.06    5.70    4.78    6.84    4.96    7.05    7.56    9.90
2000        2.82    3.77    3.16    4.31    3.49    4.85    3.83    5.38    4.51    6.45    4.68    6.68    7.14    9.90
2125        2.67    3.57    2.99    4.08    3.31    4.58    3.63    5.09    4.26    6.10    4.43    6.34    6.75    9.66
2250        2.53    3.38    2.83    3.86    3.13    4.34    3.44    4.82    4.04    5.78    4.20    6.00    6.40    9.14
2375        2.40    3.21    2.69    3.66    2.98    4.12    3.26    4.57    3.83    5.48    3.98    5.69    6.07    8.67
2500        2.29    3.05    2.56    3.48    2.83    3.91    3.10    4.35    3.65    5.21    3.79    5.41    5.78    8.25
2625        2.18    2.91    2.44    3.32    2.70    3.73    2.96    4.14    3.48    4.96    3.61    5.15    5.51    7.85
2750        2.09    2.78    2.33    3.17    2.58    3.56    2.83    3.95    3.32    4.73    3.45    4.92    5.26    7.50
2875        2.00    2.66    2.23    3.03    2.47    3.41    2.71    3.78    3.18    4.53    3.30    4.70    5.03    7.17
3000        1.92    2.55    2.14    2.91    2.37    3.27    2.60    3.62    3.05    4.34    3.17    4.51    4.83    6.87
3125        1.84    2.45    2.06    2.79    2.28    3.14    2.50    3.48    2.93    4.17    3.04    4.33    4.64    6.60
3250        1.78    2.36    1.99    2.69    2.20    3.02    2.40    3.35    2.82    4.01    2.93    4.17    4.47    6.35
3375        1.72    2.28    1.92    2.60    2.12    2.91    2.32    3.23    2.72    3.87    2.83    4.02    4.31    6.13
3500        1.66    2.20    1.86    2.51    2.05    2.82    2.24    3.12    2.63    3.74    2.73    3.88    4.17    5.92
3625        1.61    2.13    1.80    2.43    1.99    2.73    2.17    3.02    2.55    3.62    2.65    3.76    4.04    5.75
3750        1.56    2.07    1.74    2.36    1.93    2.64    2.11    2.93    2.47    3.51    2.57    3.64    3.91    5.55
3875        1.52    2.01    1.69    2.29    1.87    2.57    2.05    2.85    2.40    3.40    2.49    3.54    3.80    5.39
4000        1.48    1.95    1.65    2.22    1.82    2.49    1.99    2.77    2.33    3.31    2.43    3.44    3.70    5.24
4125        1.44    1.90    1.61    2.16    1.77    2.43    1.94    2.69    2.27    3.22    2.36    3.34    3.60    5.09
4250        1.40    1.85    1.56    2.11    1.73    2.36    1.89    2.62    2.21    3.13    2.30    3.25    3.51    4.96
4375        1.37    1.81    1.53    2.06    1.68    2.31    1.84    2.55    2.16    3.05    2.24    3.17    3.42    4.83
4500        1.34    1.76    1.49    2.01    1.64    2.25    1.80    2.49    2.11    2.98    2.19    3.09    3.34    4.71
4625        1.30    1.72    1.46    1.96    1.61    2.19    1.76    2.43    2.06    2.90    2.14    3.02    3.26    4.60
4750        1.28    1.68    1.42    1.91    1.57    2.14    1.72    2.37    2.01    2.83    2.09    2.95    3.18    4.49
4875        1.25    1.64    1.39    1.87    1.53    2.09    1.68    2.32    1.96    2.77    2.04    2.87    3.11    4.38
5000        1.22    1.60    1.36    1.82    1.50    2.04    1.64    2.26    1.92    2.70    1.99    2.81    3.03    4.28
5125        1.19    1.57    1.33    1.78    1.46    2.00    1.60    2.21    1.87    2.64    1.95    2.74    2.97    4.18
5250        1.16    1.53    1.30    1.74    1.43    1.95    1.56    2.16    1.83    2.58    1.90    2.68    2.90    4.08
5375        1.14    1.50    1.27    1.70    1.40    1.90    1.53    2.11    1.79    2.51    1.86    2.61    2.83    3.98
5500        1.11    1.46    1.24    1.66    1.37    1.86    1.49    2.06    1.75    2.46    1.82    2.55    2.77    3.89
5625        1.09    1.43    1.21    1.62    1.34    1.82    1.46    2.01    1.71    2.40    1.77    2.49    2.70    3.80
5750        1.07    1.40    1.19    1.59    1.31    1.78    1.43    1.96    1.67    2.34    1.74    2.43    2.64    3.71
5875        1.04    1.37    1.16    1.55    1.28    1.74    1.40    1.92    1.63    2.29    1.70    2.38    2.59    3.62
6000        1.02    1.34    1.14    1.52    1.25    1.70    1.37    1.88    1.60    2.24    1.66    2.33    2.53    3.54
6125        1.00    1.31    1.11    1.49    1.23    1.66    1.34    1.84    1.57    2.19    1.63    2.28    2.48    3.47
6250        0.98    1.28    1.09    1.46    1.20    1.63    1.31    1.80    1.54    2.15    1.60    2.23    2.43    3.40
6375        0.96    1.26    1.07    1.43    1.18    1.60    1.29    1.77    1.51    2.11    1.57    2.19    2.39    3.34
6500        0.95    1.24    1.06    1.41    1.16    1.57    1.27    1.74    1.48    2.07    1.54    2.15    2.35    3.28
6625        0.94    1.23    1.04    1.39    1.15    1.55    1.25    1.72    1.46    2.04    1.52    2.12    2.32    3.23
6750        0.93    1.21    1.03    1.37    1.14    1.54    1.24    1.70    1.45    2.02    1.50    2.10    2.29    3.20
6875        0.92    1.20    1.02    1.36    1.13    1.52    1.23    1.68    1.44    2.00    1.49    2.08    2.28    3.17
7000        0.92    1.20    1.02    1.36    1.12    1.52    1.23    1.68    1.43    2.00    1.49    2.08    2.27    3.17
7125        0.92    1.20    1.02    1.36    1.12    1.52    1.22    1.68    1.43    2.00    1.49    2.08    2.27    3.17
7250        0.92    1.20    1.02    1.36    1.12    1.52    1.22    1.68    1.43    2.00    1.49    2.08    2.27    3.17
7375        0.92    1.20    1.03    1.36    1.12    1.52    1.22    1.68    1.43    2.00    1.49    2.08    2.27    3.17
7500        0.92    1.20    1.02    1.36    1.12    1.52    1.22    1.68    1.43    2.00    1.49    2.08    2.27    3.17
- -------------------------------------------------------------------------------------------------------------------------
</TABLE>

PAGE 5                    7/2/96                 TEST STANDARDS AND CALCULATIONS


<PAGE>
             (iii)  ASM2525 and ASM5015 Nitric Oxide (% NO) Table
<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------
 Column #    41      41      42      42      43      43      44      44      45      45      46      46
- ----------
   ETW      5015    2525    5015    2525    5015    2525    5015    2525    5015    2525    5015    2525
           ----------------------------------------------------------------------------------------------
<S>        <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
1750         1212    1095    1819    1642    2272    2114    2725    2587    3178    3060    3631    3532
1875         1142    1031    1713    1547    2181    1991    2649    2435    3117    2879    3586    3323
2000         1077     973    1616    1460    2058    1877    2499    2295    2941    2713    3383    3131
2125         1018     920    1527    1380    1944    1774    2360    2167    2776    2561    3192    2955
2250          964     871    1446    1307    1839    1678    2232    2050    2625    2422    3018    2794
2375          915     827    1372    1240    1744    1592    2115    1943    2487    2295    2859    2646
2500          869     786    1304    1179    1657    1512    2009    1845    2361    2179    2714    2512
2625          828     749    1242    1123    1577    1440    1912    1756    2246    2073    2581    2389
2750          791     715    1186    1072    1504    1374    1823    1675    2142    1976    2460    2277
2875          756     684    1134    1026    1438    1313    1742    1601    2046    1888    2350    2175
3000          725     656    1088     984    1378    1258    1668    1533    1959    1808    2249    2082
3125          696     630    1045     945    1323    1208    1601    1471    1879    1734    2157    1997
3250          670     607    1006     910    1273    1163    1539    1415    1806    1667    2073    1920
3375          647     585     970     878    1227    1121    1483    1363    1740    1606    1997    1849
3500          625     566     937     848    1184    1082    1432    1316    1679    1550    1926    1784
3625          605     547     907     821    1146    1047    1384    1273    1623    1498    1862    1724
3750          586     531     879     796    1110    1014    1340    1233    1571    1451    1802    1669
3875          569     515     853     773    1077     984    1300    1195    1523    1407    1747    1618
4000          553     501     829     751    1046     956    1262    1161    1479    1365    1695    1570
4125          538     487     807     731    1017     930    1227    1128    1437    1327    1647    1526
4250          524     475     786     712     990     905    1194    1098    1398    1291    1602    1484
4375          510     463     766     694     964     882    1162    1069    1360    1257    1559    1444
4500          498     451     747     677     939     859    1132    1042    1325    1224    1518    1406
4625          486     440     728     661     916     838    1104    1015    1291    1193    1479    1370
4750          474     430     711     645     893     818    1076     990    1259    1163    1441    1336
4875          463     420     694     630     872     798    1049     966    1227    1134    1405    1302
5000          452     410     677     615     850     778    1023     942    1196    1106    1369    1269
5125          441     400     661     600     830     760     998     919    1167    1078    1335    1237
5250          431     391     646     586     810     741     974     896    1138    1051    1301    1206
5375          420     382     631     573     790     723     950     874    1109    1025    1269    1176
5500          410     373     616     559     771     706     926     853    1082    1000    1237    1147
5625          401     364     601     546     752     689     904     832    1055     975    1206    1118
5750          391     356     587     534     734     673     882     812    1029     951    1176    1090
5875          383     348     574     522     717     657     860     793    1004     928    1147    1064
6000          374     340     561     510     701     642     840     774     980     906    1120    1039
6125          366     333     549     499     685     628     822     757     958     886    1094    1015
6250          359     326     538     489     671     615     804     741     937     867    1070     993
6375          352     320     528     480     658     604     788     727     919     850    1049     973
6500          346     315     519     473     647     593     775     714     902     835    1030     956
6625          341     311     512     466     638     585     763     704     889     823    1014     941
6750          338     307     507     461     631     578     755     696     879     813    1003     931
6875          335     305     503     458     626     574     749     691     872     807     995     924
7000          335     305     502     457     624     573     747     689     870     805     992     921
7125          335     305     502     457     625     573     747     689     870     805     992     921
7250          335     305     502     457     625     573     747     689     870     805     992     921
7375          335     305     502     457     625     573     747     689     870     805     992     921
7500          335     305     502     457     625     573     747     689     870     805     992     921
- ---------------------------------------------------------------------------------------------------------
 
<CAPTION>
- -----------------------------------------------------------------------------------------
 Column #    47      47      48      48      49      49      50      50      51      51
- ----------
   ETW      5015    2525    5015    2525    5015    2525    5015    2525    5015    2525
           ------------------------------------------------------------------------------
<S>        <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
1750         4084    4005    4990    4950    4990    4960    4990    4980    4990    4990
1875         4054    3767    4990    4655    4990    4738    4990    4906    4990    4990
2000         3824    3548    4707    4384    4778    4535    4919    4838    4990    4990
2125         3609    3348    4441    4136    4578    4349    4853    4776    4990    4990
2250         3411    3165    4197    3909    4395    4179    4792    4720    4990    4990
2375         3231    2998    3974    3701    4228    4024    4736    4668    4990    4990
2500         3066    2845    3771    3512    4076    3881    4685    4620    4990    4990
2625         2916    2706    3585    3339    3936    3752    4639    4577    4990    4990
2750         2779    2579    3416    3181    3809    3579    4596    4374    4990    4772
2875         2654    2463    3261    3037    3669    3417    4484    4176    4892    4556
3000         2539    2357    3120    2906    3510    3270    4290    3996    4680    4359
3125         2435    2260    2992    2787    3366    3135    4114    3832    4488    4180
3250         2340    2172    2874    2677    3234    3012    3952    3681    4311    4016
3375         2253    2092    2767    2577    3113    2899    3804    3544    4150    3866
3500         2174    2018    2668    2486    3002    2796    3669    3418    4002    3728
3625         2100    1950    2578    2401    2900    2701    3544    3302    3867    3602
3750         2033    1887    2494    2323    2806    2614    3429    3195    3741    3485
3875         1970    1829    2417    2251    2719    2533    3323    3096    3625    3377
4000         1912    1775    2345    2184    2638    2457    3224    3003    3517    3276
4125         1857    1724    2277    2122    2562    2387    3131    2917    3416    3182
4250         1806    1677    2214    2063    2490    2320    3044    2836    3321    3094
4375         1757    1632    2154    2007    2423    2258    2961    2759    3230    3010
4500         1711    1589    2096    1953    2359    2198    2883    2686    3145    2930
4625         1666    1548    2042    1903    2297    2140    2807    2616    3063    2854
4750         1624    1508    1989    1854    2238    2085    2735    2549    2983    2780
4875         1583    1470    1938    1806    2180    2032    2665    2483    2907    2709
5000         1542    1433    1889    1760    2125    1980    2597    2420    2833    2640
5125         1503    1397    1840    1715    2070    1930    2530    2359    2760    2573
5250         1465    1362    1793    1672    2017    1881    2466    2298    2690    2507
5375         1428    1327    1747    1629    1966    1833    2403    2240    2621    2443
5500         1392    1294    1703    1587    1916    1786    2341    2183    2554    2381
5625         1357    1261    1659    1547    1867    1740    2282    2127    2489    2321
5750         1323    1230    1617    1508    1820    1697    2224    2074    2426    2262
5875         1290    1199    1577    1471    1774    1654    2168    2022    2366    2206
6000         1259    1171    1539    1435    1731    1614    2116    1973    2308    2152
6125         1230    1144    1503    1401    1690    1577    2066    1927    2254    2102
6250         1203    1119    1469    1371    1653    1542    2020    1884    2204    2056
6375         1179    1096    1439    1343    1619    1510    1979    1846    2159    2014
6500         1158    1077    1413    1318    1590    1483    1943    1813    2119    1977
6625         1140    1060    1391    1298    1565    1460    1913    1785    2087    1947
6750         1127    1048    1374    1283    1546    1443    1890    1764    2062    1924
6875         1118    1040    1364    1273    1534    1432    1875    1750    2046    1909
7000         1115    1037    1360    1269    1530    1428    1870    1745    2040    1904
7125         1115    1037    1360    1269    1531    1428    1874    1745    2045    1904
7250         1115    1037    1360    1269    1531    1428    1874    1745    2045    1904
7375         1115    1037    1360    1269    1531    1428    1874    1745    2045    1904
7500         1115    1037    1360    1269    1531    1428    1874    1745    2045    1904
- -----------------------------------------------------------------------------------------
</TABLE>
 
PAGE 6                   7/2/96                  TEST STANDARDS AND CALCULATIONS
<PAGE>

(b)   Test Score Calculation

      (1)   EXHAUST GAS MEASUREMENT CALCULATION.

           (i)   MEASUREMENT START.  The analysis and recording of exhaust
                 gas concentrations shall begin 15 seconds after the
                 applicable test mode begins, or sooner if the system response
                 time (to 100%) is less than 15 seconds.  The analysis and
                 recording of exhaust gas concentrations shall not begin sooner
                 than the time period equivalent to the response time of the
                 slowest transducer.

           (ii)  SAMPLE RATE.  Exhaust gas concentrations shall be analyzed at
                 a minimum rate of once per second.

           (iii) EMISSION MEASUREMENT CALCULATIONS.  Partial stream
                 (concentration) emissions shall be calculated based on a
                 running 10 second average.  The values used for HC(j), CO(j),
                 and NO(j) are the raw (uncorrected) tailpipe concentrations.

                                  jHC(j) * DCF(j)
                                j-10
                 (A) AvgHC = -------------------
                                   10


                                jCO(j) * DCF(j)
                                j-10
                 (B) AvgCO = -------------------
                                   10


                                jNO(j) * DCF(j)
                                j-10
                 (C) AvgNO = -------------------
                                   10

           (iv)  DILUTION CORRECTION FACTOR.  The analyzer software shall
                 multiply the raw emissions values by the Dilution Correction
                 Factor (DCF) during any valid ASM emissions test.  The DCF
                 accounts for exhaust sample dilution (either intentional or
                 unintentional) during an emissions test.  The analyzer 
                 software shall calculate the DCF using the following 
                 procedure, and shall select the appropriate vehicle fuel 
                 formula.  If the calculated DCF exceeds 3.0 then a default 
                 value of 3.0 shall be used.

                                  [CO2]measured
                 (A)   X = ----------------------------
                           [CO2]measured + [CO]measured

                       Where [CO2]measured and [CO]measured are the 
                       instantaneous ASM emissions test readings.

                 (B)   Calculate [CO2]adjusted using the following formulas.

                       (1)   For Gasoline:
                                             _                _
                                             |        X        |
                             [CO2]adjusted = | --------------- | *100
                                             |_  4.644+1.88X  _|


PAGE 7                           7/2/96        TEST STANDARDS AND CALCULATIONS

<PAGE>

                       (2)  For Methanol or Ethanol:
                                             _                _
                                             |        X        |
                             [CO2]adjusted = | --------------- |  *100
                                             |_  4.73+1.88X   _|

                       (3)  For Compressed Natural Gas (CNG):

                                             _                _
                                             |        X        |
                             [CO2]adjusted = | --------------- |  *100
                                             |_  6.64+1.88X   _|

                       (4)  For Liquid Propane Gas (LPG):

                                             _                _
                                             |        X        |
                             [CO2]adjusted = | --------------- |  *100
                                             |_  5.39+1.88X   _|

                 (C)   Calculate the DCF using the following formula:

                                     [CO2]adjusted
                             DCF =  ----------------
                                     [CO2]measured

           (v)   NO HUMIDITY CORRECTION FACTOR.  The NO measurement shall be
                 adjusted based on relative humidity using a correction factor 
                 Kh, calculated as follows:

                                    1
                (A)   Kh =   ----------------
                             1 - 0.0047(H-75)

                (B)   H = Absolute humidity in grains of water per pound of 
                          dry air.

                             (43.478)Ra*Pd
                         =  ----------------
                             PB-(Pd*Ra/100)

                (C)   Ra = Relative humidity of the ambient air, percent.

                (D)   Pd = Saturated vapor pressure, mm Hg at the ambient dry 
                           bulb temperature.  If the temperature is above 
                           86 F, then it shall be used in lieu of the higher 
                           temperature, until EPA supplies final correction 
                           factors.

                (E)   PB = Barometric pressure, mm Hg.

      (2)   PASS/FAIL DETERMINATION.  A pass or fail determination shall be
            made for each applicable test mode based on a comparison of the
            applicable test standards and the measured value for HC, CO, and NO
            as described in Section 85.1(b)(1)(iii). A vehicle shall pass the
            test mode if the emission values for HC, CO, and NO are
            simultaneously below or equal to the applicable short test
            standards for all three pollutants.  A vehicle shall fail the
            test mode if the values for HC, CO, or NO, or any combination of
            the three, are above the applicable standards at the expiration
            of the test time.


PAGE 8                       7/2/96            TEST STANDARDS AND CALCULATIONS

<PAGE>

Section 85.2   TEST PROCEDURES

(a)   General Requirements.

      (1)  VEHICLE CHARACTERIZATION.  The following information shall be
           determined for the vehicle being tested and used to automatically
           select the dynamometer power absorption settings:

           (i)    Vehicle type: LDGV, LDGT1, LDGT2, HDGT, and others as needed
           (ii)   Chassis model year
           (iii)  Make
           (iv)   Model
           (v)    Number of cylinders
           (vi)   Cubic inch or liters displacement of the engine
           (vii)  Transmission type
           (viii) Equivalent Test Weight.

      (2)   AMBIENT CONDITIONS.  The ambient temperature, absolute humidity,
            and barometric pressure shall be recorded continuously during the
            test cycle or as a single set of readings up to 4 minutes before
            the start of the driving cycle.

      (3)   RESTART.  If shut off, the vehicle shall be restarted as soon as
            possible before the test and shall be running for at least 30
            seconds prior to the start of the ASM driving cycle.

      (4)   VOID TEST CONDITIONS.  The test shall immediately end and any
            exhaust gas measurements shall be voided if the instantaneous
            measured concentration of CO plus C02 falls below six percent or
            the vehicle's engine stalls at any time during the test sequence.

      (5)   VEHICLE BRAKES.  The vehicle's brakes shall not be applied during
            the test modes.  If the vehicles brakes are applied during testing
            the mode timer shall be reset to zero (tt=0).

      (6)   TEST TERMINATION.  The test shall be aborted or terminated upon
            reaching the overall maximum test time.

(b)   Vehicle Pre-inspection and Preparation.

      (1)   ACCESSORIES.  All accessories (air conditioning, heat, defogger,
            radio, automatic traction control if switchable, etc.) shall be
            turned off (if necessary, by the inspector).

      (2)   EXHAUST LEAKS.  The vehicle shall be inspected for exhaust leaks.
            Audio assessment while blocking exhaust flow, or gas measurement
            of carbon dioxide or other gases shall be acceptable.  Vehicles
            with leaking exhaust systems shall be rejected from testing.


PAGE 9                    7/2/96                              TEST PROCEDURES

<PAGE>

      (3)   FLUID LEAKS.  The vehicle shall be inspected for fluid leaks.
            Vehicles with leaking engine oil, transmission fluid, or coolant
            shall be rejected from testing.

      (4)   MECHANICAL CONDITION.  Vehicles with obvious mechanical problems
            (engine, transmission, brakes, or exhaust) that either create a 
            safety hazard or could bias test results shall be rejected from 
            testing.

      (5)   OPERATING TEMPERATURE.  The vehicle shall be at normal operating
            temperature prior to the start of the test.  The vehicle
            temperature gauge, if equipped and operating, shall be checked to
            assess temperature.  Vehicles in overheated condition shall be
            rejected from testing.

      (6)   TIRE CONDITION.  Vehicles shall be rejected from testing if tread
            indicators, tire cords, bubbles, cuts, or other damage are
            visible.  Vehicles shall be rejected from testing if they have
            space-saver spare tires or if they do not have reasonably sized
            tires on the drive axle or axles.  Vehicles may be rejected if
            they have different sized tires on the drive axle or axles.  In
            test-and-repair facilities, drive wheel tires shall be checked
            with a gauge for adequate tire pressure.  In test-only
            facilities, drive wheel tires shall be visually checked for
            adequate pressure level.  Drive wheel tires that appear low shall
            be inflated to approximately 30 psi, or to tire side wall
            pressure, or vehicle manufacturers recommendation.
            Alternatively, vehicles with apparent low tire pressure may be
            rejected from testing.

      (7)   GEAR SELECTION.  The vehicle shall be operated during each mode
            of the test with the gear selector in drive for automatic
            transmissions and in second (or third if more appropriate) for
            manual transmissions for the loaded modes.

      (8)   ROLL ROTATION.  The vehicle shall be maneuvered onto the
            dynamometer with the drive wheels positioned on the dynamometer
            rolls.  Prior to test initiation, the rolls shall be rotated
            until the vehicle laterally stabilizes on the dynamometer.
            Vehicles that cannot be stabilized on the dynamometer shall be
            rejected from testing.  Drive wheel tires shall be dried if
            necessary to prevent slippage.

      (9)   VEHICLE RESTRAINT.  Testing shall not begin until the vehicle is
            restrained.  Any restraint system shall meet the requirements of
            Section 85.3(a)(5)(ii). In addition, the parking brake shall be
            set for front wheel drive vehicles prior to the start of the
            test, unless parking brake functions on front axle or if is
            automatically disengaged when in gear.

     (10)   VEHICLE CONDITIONING

            (i).  QUEUING TIME.  When a vehicle waits in a queue more than 20
                  minutes or when a vehicle is shut-off for more than 5 minutes
                  prior to the test, vehicle conditioning shall be performed 
                  for 60 seconds, as specified in Section 85.2(b)(10)(ii)(C). 
                  Emissions may be monitored during this cycle and if passing 
                  readings are obtained, as specified for the ASM cycle in 
                  Section 85.2(d), then the cycle may be terminated and the 
                  respective ASM mode skipped.


PAGE 10                           7/2/96                     TEST PROCEDURES

<PAGE>

            (ii)  DISCRETIONARY PRECONDITIONING.  At the program's discretion,
                  any vehicle may be preconditioned using any of the following
                  methods:

                  (A)   NON-LOADED PRECONDITIONING.  Increase engine speed to
                        approximately 2500 rpm, for up to 4 minutes, with or
                        without a tachometer.

                  (B)   LOADED PRECONDITIONING.  Drive the vehicle on the 
                        dynamometer at 30 miles per hour for up to 240 seconds 
                        at road-load.

                  (C)   ASM PRECONDITIONING.  Drive the vehicle on the 
                        dynamometer using either mode of the ASM test as 
                        specified in Section 85.2(d).

                  (D)   TRANSIENT PRECONDITIONING.  After maneuvering the 
                        vehicle onto the dynamometer, drive a transient cycle 
                        consisting of speed, time, acceleration, and load 
                        relationships such as the IM240.

(c)   Equipment Preparation and Settings.

      (1)   ANALYZER WARM-UP.  Emission testing shall be locked out until the
            analyzer is warmed-up and stable.  The analyzer shall reach
            stability within 30 minutes from startup.  If an analyzer does
            not achieve stability within the allotted time frame, it shall
            remain locked out from testing.  The instrument shall be
            considered "warmed-up" when the zero and span readings for HC,
            CO, NO, and C0(2) have stabilized within the accuracy values
            specified in Section 85.3(c)(3) for five minutes without
            adjustment (this does not require span gas verification of warm-up,
            but provides the quality assurance method for checking).

      (2)   EMISSION SAMPLE SYSTEM PURGE.  While a lane is in operation, the
            sample system shall be continuously purged after each test for at
            least 15 minutes if not taking measurements.

      (3)   PROBE INSERTION.  The sample probe shall be inserted into the
            vehicle's tailpipe to a minimum depth of 10 inches.  If the
            vehicle's exhaust system prevents insertion to this depth, a
            tailpipe extension shall be used.

      (4)   MULTIPLE EXHAUST PIPES.  Exhaust gas concentrations from vehicle
            engines equipped with functionally independent multiple exhaust
            pipes shall be sampled simultaneously.

      (5)   ANALYZER PREPARATION.  The analyzer shall perform an automatic
            zero, an ambient air reading, and an HC hang-up check prior to
            each test.  This process shall occur within two minutes of the
            start of the test.

            (i)   AUTOMATIC GAS ZERO.  The analyzer shall conduct automatic zero
                  adjustments using the zero gas specified in Section 
                  85.4(d)(2)(iii). The zero adjustment shall include the HC, CO,
                  C0(2), and NO channels.  Bottled or generated zero air may be 
                  used.



PAGE 11                              7/2/96                      TEST PROCEDURES

<PAGE>


            (ii)  AMBIENT AIR READING.  Filtered ambient air shall be introduced
                  to the analyzer before the sample pump, but after the sample
                  probe, hose, and filter/water trap.  The analyzer shall record
                  the concentrations of the four measured gases, but shall make
                  no adjustments.

            (iii) HC HANG-UP DETERMINATION.  The analyzer shall sample ambient
                  air through the probe to determine background pollution levels
                  and HC hang-up.  The analyzer shall be locked out from testing
                  until (1) the sample through probe has less than 15 ppm HC, 
                  0.02% CO, and 25 ppm NO; and, (2) the residual HC in the 
                  sampling system (probe sample - ambient air reading) is less
                  than 7 ppm.

      (6)   COOLING SYSTEM.  When ambient temperatures exceed 72DEG.F, testing
            shall not begin until the cooling system blower is positioned and
            activated.  The cooling system blower shall be positioned to
            direct air to the vehicle cooling system, but shall not be
            directed at the catalytic converter.

      (7)   DYNAMOMETER WARM-UR.  The dynamometer shall be automatically
            warmed-up prior to official testing and shall be locked out until
            it is warmed-up.  Dynamometers resting (not operated for at least
            30 seconds and at least 15 mph) for more than 30 minutes shall
            pass the coast-down check specified in Section 85.4(b)(1) prior
            to use in testing.  As specified in Section 85.4(a)(2), control
            charts may be used to demonstrate allowing a longer duration of
            inactivity before a required warm-up.

      (8)   LOAD SETTING.  Prior to each mode, the system shall automatically
            select the load setting of the dynamometer from a look-up table
            supplied by EPA or the state.

      (9)   ENGINE SPEED.  Engine speed measurement equipment shall be
            attached on all 1996 and newer light duty vehicles and trucks,
            and in test-and-repair programs, engine speed shall also be
            monitored on all pre-1996 vehicles.  Starting in 1998, the SAE-
            standardized OBD plug shall be used on 1996 and newer vehicles.
            Engine speed measurement equipment shall meet the requirements of
            Section 85.3(c)(5).

(d)   Test Procedures.

      The test sequence shall consist of either a single ASM mode or both ASM 
      modes described in Section 85.2(d)(1) and (2), and may be performed in 
      either order (with appropriate change in transition requirements in 
      Section 85.2(d)(1)(iv)). Vehicles that fail the first-chance test 
      described in Section 85.2(d) shall receive a second-chance test if the
      conditions in Section 85.2(e) apply.  The test timer shall start (tt=0)
      when the conditions specified in Section 85.2(c)(2) and Section 85.2(c)(3)
      are met and the mode timer initiates as specified in Section 85.2(d)(1)
      or Section 85.2(d)(2). The test sequence shall have an overall maximum 
      test time of 290 seconds (tt=290).  The test shall be immediately 
      terminated or aborted upon reaching the overall maximum test time.

      (1)   ASM5015 MODE.

            (i)   The mode timer shall start (mt=0) when the dynamometer speed
                  (and corresponding power) is maintained within 15 PLUS OR 
                  MINUS 1.0 miles per hour for 5 continuous seconds.  If the 
                  inertia simulation error exceeds the tolerance specified in 
                  Section 85.3(a)(4)(ii)(A) (or Section 85.3(a)(4)(ii)(B) 
                  if used) for more than 3 consecutive seconds after the mode 
                  timer is started, the test mode timer shall

PAGE 12                              7/2/96                     TEST PROCEDURES

<PAGE>

                  be set to mt=0.  Should this happen a second time, the test 
                  shall be aborted.  The dynamometer shall apply the correct 
                  torque for 15.0 mph for the torque at any testing speed 
                  within the tolerance of 15 PLUS OR MINUS 1.0 miles per hour 
                  (i.e., constant torque load over speed range). The torque 
                  tolerance shall be PLUS OR MINUS 5% of the correct torque 
                  at 15 mph.

           (ii)   The dynamometer power shall be automatically selected from 
                  an EPA-supplied or EPA-approved look-up table, based upon 
                  the vehicle identification information described in Section 
                  85.2(a)(1). Vehicles not listed in the look-up table and 
                  for which ETW is not available shall be tested using the 
                  following default settings:

<TABLE>
<CAPTION>

                       Default ASM5015 Actual Horsepower Settings
                             For 8.6" Dynamometers HP5015(8)
            -------------------------------------------------------------------
            Vehicle Type
              Number of Cylinders   3     4     5 & 6      8    GREATER THAN 8
            -------------------------------------------------------------------
            <S>                  <C>   <C>    <C>       <C>        <C>
            Sedans                7.9   11.4    13.8     16.4       16.0
            Station Wagons        8.1   11.7    13.8     16.1       16.1
            Mini-vans            10.2   14.1    15.8     17.9       18.2
            Pickup Trucks         9.6   13.1    16.4     19.2       21.1
            Sport/Utility        10.1   13.4    15.5     19.4       21.1
            Full Vans            10.3   13.9    17.7     19.6       20.5
            -------------------------------------------------------------------

</TABLE>

<TABLE>
<CAPTION>

                       Default ASM5015 Actual Horsepower Settings
                             For 20" Dynamometers HP5015(20)
            -------------------------------------------------------------------
            Vehicle Type
              Number of Cylinders   3     4     5 & 6      8    GREATER THAN 8
            -------------------------------------------------------------------
            <S>                  <C>   <C>    <C>       <C>        <C>
            Sedans                8.1   11.8   14.3      16.9       16.6
            Station Wagons        8.3   12.1   14.2      16.6       16.6
            Mini-vans            10.4   14.5   16.3      18.5       18.7
            Pickup Trucks         9.8   13.4   16.8      19.8       21.7
            Sport/Utility        10.5   13.8   15.9      19.9       21.7
            Full Vans            10.8   14.4   18.2      20.2       21.1
            -------------------------------------------------------------------

</TABLE>

                  If the dynamometer speed or torque falls outside the speed 
                  or torque tolerance for more than 2 consecutive seconds, 
                  or for more than 5 seconds total, the mode timer shall 
                  reset to zero and resume timing. The minimum mode length 
                  shall be determined as described in Section 85.2(d)(iii). 
                  The maximum mode length shall be 90 seconds elapsed time 
                  (mt=90).

                  During the 10 second period used for the pass decision, the 
                  dynamometer speed shall not fall more than 0.5 mph (absolute 
                  drop, not cumulative).  If the speed at the end of the 10 
                  second period is more than 0.5 mph less than the speed at 
                  the start of the 10 second period testing shall continue 
                  until the speed stabilizes enough to meet this criterion.

PAGE 13                              7/2/96                     TEST PROCEDURES

<PAGE>

                  The ten second emissions window shall be matched to the 
                  corresponding vehicle speed trace time window.  This shall 
                  be performed by subtracting the nominal response time for 
                  the analyzers from the mode time to determine the time for 
                  the corresponding vehicle speed.

          (iii)   The pass/fail analysis shall begin after an elapsed time 
                  of 25 seconds (mt=25).  A pass or fail determination shall 
                  be made for the vehicle and the mode shall be terminated 
                  as follows:

                  (A)   The vehicle shall pass the ASM5015 mode and the mode 
                        shall be immediately terminated if, at any point 
                        between an elapsed time of 25 seconds (mt=25) and 
                        90 seconds (mt=90), the 10 second running average 
                        measured values for each pollutant are simultaneously 
                        less than or equal to the applicable test standards 
                        described in Section 85.1(a).

                  (B)   The vehicle shall fail the ASM5015 mode and the mode 
                        shall be terminated if the requirements of Section 
                        85.2(d)(1)(iii)(A) are not satisfied by an elapsed 
                        time of 90 seconds (mt=90).

           (iv)   Upon termination of the ASM5015 mode, the vehicle shall 
                  immediately begin accelerating to the speed required for 
                  the ASM2525 mode.  The dynamometer torque shall smoothly 
                  transition during the acceleration period and shall 
                  automatically reset to the load required for the ASM2525 
                  mode as specified in Section 85.2(d)(2)(i) once the roll 
                  speed specified in Section 85.2(d)(2)(i) is achieved.

      (2)   ASM2525 MODE.

            (i)   The mode timer shall start (mt=0) when the dynamometer 
                  speed (and corresponding power) are maintained within 
                  25 PLUS OR MINUS 1.0 miles per hour for 5 continuous 
                  seconds.  If the inertia simulation error exceeds the 
                  tolerance specified in Section 85.3(a)(4)(ii)(A) (or 
                  Section 85.3(a)(4)(ii)(B) if used) for more than 3 
                  consecutive seconds after the mode timer is started, 
                  the test mode timer shall be set to mt=0.  Should this 
                  happen a second time, the test shall be aborted.  The 
                  dynamometer shall apply the correct torque for 25.0 mph 
                  for the torque at any testing speed within the tolerance 
                  of 25 PLUS OR MINUS 1.0 miles per hour (i.e., constant 
                  torque load over speed range). The torque tolerance shall 
                  be PLUS OR MINUS 5% of the correct torque at 25 mph.

           (ii)   The dynamometer power shall be automatically selected from 
                  an EPA-supplied or EPA-approved look-up table, based upon 
                  the vehicle identification information described in Section 
                  85.2(a)(1). Vehicles not listed in the look-up table and 
                  for which ETW is not available shall be tested using the 
                  following default settings:

PAGE 14                              7/2/96                     TEST PROCEDURES

<PAGE>

Section 85.2                                                      Section 85.2


<TABLE>
<CAPTION>
                                              Default ASM2525 Actual Horsepower Settings
                                                       For 8.6" Dynamometers HP2525(8)
                  --------------------------------------------------------------------------------
                  Vehicle Type
                   Number of Cylinders           3        4         5 & 6        8          > 8
                  --------------------------------------------------------------------------------
                  <S>                           <C>      <C>         <C>        <C>         <C>
                  Sedans                        6.7       9.5        11.5       13.7         13.3
                  Station Wagons                6.8       9.7        11.5       13.4         13.3
                  Mini-vans                     8.8      11.7        13.2       14.9         15.3
                  Pickup Trucks                 8.0      10.9        13.6       16.0         17.8
                  Sport/Utility                 8.8      11.2        12.9       16.1         17.8
                  Full Vans                     9.0      11.6        14.7       16.3         17.2
                  --------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                               Default ASM2525 Actual Horsepower Settings
                                                       For 20" Dynamometers HP2525(20)
                  --------------------------------------------------------------------------------
                  Vehicle Type
                   Number of Cylinders           3         4        5 & 6        8          > 8
                  --------------------------------------------------------------------------------
                  <S>                          <C>       <C>        <C>         <C>         <C>
                  Sedans                       6.9       10.1        12.3       14.5         14.3
                  Station Wagons               7.0       10.4        12.2       14.2         14.4
                  Mini-vans                    8.9       12.5        14.0       15.9         16.3
                  Pickup Trucks                8.1       11.4        14.4       16.9         18.8
                  Sport/Utility                8.9       11.8        13.6       17.1         18.8
                  Full Vans                    9.1       12.5        15.5       17.3         18.3
                  --------------------------------------------------------------------------------
</TABLE>

                  If the dynamometer speed or torque falls outside the speed 
                  or torque tolerance for more than two consecutive seconds, 
                  or for more than 5 seconds total, the mode timer shall 
                  reset to zero and resume timing. The minimum mode length 
                  shall be determined as described in Section 
                  85.2(d)(2)(iii). The maximum mode length shall be 90 
                  seconds elapsed time (mt=90).

                  During the 10 second period used for the pass decision, the 
                  dynamometer speed shall not fall more than 0.5 mph 
                  (absolute drop, not cumulative).  If the speed at the end 
                  of the 1O second period is more than 0.5 mph less than the 
                  speed at the start of the 1O second period, testing shall 
                  continue until the speed stabilizes enough to meet this 
                  criterion.

            (iii) The pass/fail analysis shall begin after an elapsed time of 
                  25 seconds (mt=25).  A pass or fail determination shall be 
                  made for the vehicle and the mode shall be terminated as 
                  follows:

                  (A)   The vehicle shall pass the ASM2525 mode if, at any 
                        point between an elapsed time of 25 seconds (mt=25) 
                        and 90 seconds (mt=90), the 10-second running average 
                        measured values for each pollutant are simultaneously 
                        less than or equal to the applicable test standards 
                        described in Section 85.1(a). If the vehicle passed 
                        the ASM5015 mode, as described in Section 
                        85.2(d)(1)(iii), the ASM2525 mode shall be terminated 
                        upon obtaining passing scores for all three 
                        pollutants.  If the vehicle



PAGE 15                                 7/2/96                 TEST PROCEDURES

<PAGE>

Section 85.2                                                      Section 85.2

                        failed the ASM5015 mode, the ASM2525 mode shall 
                        continue for an elapsed time of 90 seconds (mt=90).

                  (B)   The vehicle shall fail the ASM2525 mode and the mode 
                        shall be terminated if the requirements of Section 
                        85.2(d)(2)(iii)(A) are not satisfied by an elapsed 
                        time of 90 seconds (mt=90).

(e)   Second Chance Tests.

      (1)   If the vehicle fails the first-chance test, the test timer shall 
            reset to zero (tt=O) and a second-chance test shall be performed, 
            except as noted below.  The second-chance test shall have an 
            overall maximum test time of 145 seconds (tt=145) if one mode is 
            repeated, an overall maximum time of 290 seconds (tt=290) if two 
            modes are repeated.

      (2)   Repetition or extension of failed modes for two mode ASM tests. 
            Except in the case of vehicles subject to preconditioning 
            specified in Section 85.2(b)(10(i), if at least 90 seconds of 
            loaded preconditioning is performed, as specified in Section 
            85.2(b)(10)(ii), then the second-chance test may be omitted.

            (i)   If the vehicle failed only the first mode (ASM5015) of the 
                  first chance test, then that mode shall be repeated upon 
                  completion of the second mode (ASM2525).  The repeated mode 
                  shall be performed as described in Section 85.2(d)(1) 
                  except that the provisions of Section 85.2(d)(1)(iv) shall 
                  be omitted.  The test will terminate when the mode ends or 
                  when the vehicle passes, whichever occurs first.

            (ii)  If the vehicle is failing only the second mode (ASM2525) of 
                  the first chance test, then the second mode shall not end 
                  at 90 seconds but shall continue for up to 180 seconds.  
                  Mode and test timers shall not reset but rather continue up 
                  to 180 seconds.  The provisions of Section 85.2(d)(2) shall 
                  continue to apply throughout the 180 second test period.

            (iii) If the vehicle failed both modes (ASM5015 and ASM2525) of 
                  the first chance test, then the vehicle shall receive a 
                  second-chance test for the ASM5015.  If the vehicle fails 
                  the second-chance ASM5015, then the vehicle shall fail the 
                  test.  Otherwise, the vehicle shall also receive a 
                  second-chance ASM2525.

      (3)   Repetition of failed modes for single mode ASM tests.

            (ii)  If the vehicle is failing at the end of the mode then 
                  the test mode shall not end at 90 seconds but shall 
                  continue for up to 180 seconds.  Mode and test timers shall 
                  not reset but rather continue up to 180 seconds.  The 
                  provisions of Section 85.2(d)(1) or Section 85.2(d)(2) 
                  shall continue to apply throughout the 180 second test 
                  period.



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Section 85.3   TEST EQUIPMENT SPECIFICATIONS

(a)   Dynamometer Specifications.

      (1)   GENERAL REQUIREMENTS

            (i)   Only one diameter of dynamometer shall be used in a program.

            (ii)  The dynamometer structure (e.g., bearings, rollers, pit 
                  plates, etc.) shall accommodate all light-duty vehicles and 
                  light-duty trucks up to 8500 pounds GVWR.

            (iii) Dynamometer ASM load horsepower (HP5015 or HP2525) shall be 
                  automatically selected based on the vehicle parameters in 
                  the test record.

            (iv)  All dynamometers shall have an identification plate 
                  permanently affixed showing at a minimum, the dynamometer 
                  manufacturers name, the system provider's name, production 
                  date, model number, serial number, dynamometer type, 
                  maximum axle weight, maximum HP absorbed, roll diameter, 
                  roll width, base inertia weight, and electrical 
                  requirements.

            (v)   Alternative dynamometer specifications or designs may be 
                  allowed if proposed by a state and upon a determination by 
                  the Administrator that, for the purpose of properly 
                  conducting an approved short test, the evidence supporting 
                  such deviations show that proper vehicle loading will be 
                  applied.

      (2)   POWER ABSORPTION.

            (i)   VEHICLE LOADING.  The vehicle loading used during the ASM 
                  driving cycles shall follow the equation in Section 
                  85.3(a)(2)(ii) at 15 and 25 mph. Unless otherwise noted, 
                  any horsepower displayed during testing shall be expressed 
                  as HP.

            (ii)  IHP = THP - PLHP - GTRL

                  HP = IHP + PLHP
                   Where:
                   HP   = The actual Horsepower value contained in the 
                          look-up table for a vehicle being tested (using the 
                          ASM5015 or 2525) on a dynamometer with the 
                          specified diameter rollers. The actual horsepower 
                          is the sum of the indicated horsepower and the 
                          parasitic losses (PLHP)

                   IHP  = Indicated Horsepower value set on the dynamometer.

                   THP  = Total Horsepower for an ASM test includes 
                          indicated, tire losses, and parasitics. This value 
                          is independent of roll size.

                   GTRL = Generic Tire/Roll Interface Losses at the specified 
                          speed (15 or 25 mph) on a dynamometer with the 
                          specified diameter rollers.

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                   PLHP = Parasitic Losses Horsepower due to internal 
                          dynamometer friction.  A value is specific to each 
                          individual dynamometer and speed.

            (iii) RANGE OF POWER ABSORBER.  The range of the power absorber 
                  shall be sufficient to simulate the load required to 
                  perform an ASM5015 and an ASM2525 on all light-duty 
                  vehicles and light-duty trucks up to 8500 pounds GVWR.  The 
                  power absorber shall absorb, at 14 mph and above, a minimum 
                  of 25 horsepower continuously for a steady-state test of at 
                  least 5 minutes, with 3 minutes between each test.

            (iv)  PARASITIC LOSSES.  The parasitic losses (PLHP) in each 
                  dynamometer system (including but not limited to windage, 
                  bearing friction, and system drive friction) shall be 
                  characterized at 15 and 25 mph upon initial acceptance, and 
                  during each dynamometer calibration.  The parasitic power 
                  losses shall be determined as indicated in Section 
                  85.4(b)(2).

            (v)   POWER ABSORBER.  Only electric power absorbers shall be 
                  used unless alternatives are proposed by the state and 
                  approved by the Administrator.  The power absorber shall be 
                  adjustable in 0.1 hp increments at both 15 MPH and 25 MPH. 
                  The accuracy of the power absorber (PAU + parasitic 
                  losses) shall be PLUS OR MINUS 0.25 horsepower or PLUS OR 
                  MINUS 2% of required power, whichever is greater, in either
                  direction of rotation. For field auditing the accuracy shall
                  be PLUS OR MINUS 0.5 horsepower.

            (vii) ACCURACY OVER THE OPERATING RANGE.  The dynamometer's 
                  accuracy when warm shall not deviate more than PLUS OR 
                  MINUS 0.5 horsepower over the full ambient operating range of
                  35 DEG. F to 110 DEG. F.  This may be accomplished by
                  intrinsic design or by software correction techniques. At any
                  constant temperature, the dynamometer shall have an accuracy
                  of PLUS OR MINUS 0.5 horsepower within 15 seconds of the start
                  of the test, and shall have an accuracy of PLUS OR MINUS 0.25 
                  horsepower within 30 seconds of the start of the test. For 
                  temperatures outside the specified range, the dynamometer
                  shall provide correction or proceed with a manufacturer 
                  warm-up sequence until full warm condition has been reached.

      (3)   Rolls.

            (i)   SIZE AND TYPE.  The dynamometer shall be equipped with twin 
                  rolls.  The rolls shall be electrically or mechanically 
                  coupled side-to-side and front-to-rear.  The dynamometer 
                  roll diameter shall be between 8.5 and 21.0 inches.  The 
                  spacing between the roll centers shall comply with the 
                  equation in Section 85.3(a)(3)(ii) to within 0.5 inches 
                  and -0.25 inches of the calculated value.  Fixed 
                  dynamometer rolls shall have an inside track width of no 
                  more than 30 inches and outside track width of at least 
                  100 inches.  Rolls moveable from side-to-side may be used 
                  if adequate measures are taken to prevent tire damage from 
                  lateral vehicle movement and the dynamometer sufficiently 
                  accommodates track widths of the full range of vehicles to 
                  be tested on the dynamometer.  Alternative track widths, 
                  roll sizes, and number of rolls may


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<PAGE>

                  be used if approved by the state and the Administrator and 
                  if adequate measures are taken to prevent tire damage from 
                  lateral vehicle movement and the dynamometer sufficiently 
                  accommodates track widths of the full range of vehicles to 
                  be tested on the dynamometer.

            (ii)  Roll Spacing = (24.375+D) * Sin 31.5153

                        D = dynamometer roll diameter.

                        Roll spacing and roll diameter are expressed in inches.

           (iii)  DESIGN.  The roll size, surface finish, and hardness shall 
                  be such that tire slippage is minimized under all weather 
                  conditions; that water removal is maximized; that the 
                  specified accuracy of the distance and speed measurements 
                  are maintained; and that tire wear and noise are minimized.

      (4)   INERTIA.

            (i)   BASE INERTIA.  The dynamometer shall be equipped with 
                  mechanical flywheel(s) or with full inertia simulation 
                  providing a total base inertia weight of 2000 pounds 
                  PLUS/MINUS 40 pounds.  Any deviation from the 2000 pound 
                  base inertia shall be quantified and the coast-down time 
                  shall be corrected accordingly.  Any deviation from the 
                  stated inertia shall be quantified and the inertia simulation
                  shall be corrected accordingly.  The actual inertia weight 
                  shall be marked on the ID plate required in Section 
                  85.3(a)(1)(iv).

            (ii)  INERTIA/INERTIA SIMULATION.  The dynamometer shall be 
                  capable of conducting, at a minimum, diagnostic level 
                  transient inertia simulations with an acceleration rate 
                  between 0 and 3.3 miles per hour per second with a minimum 
                  load (power) of 25 horsepower at 14 mph over the inertia 
                  weight range of 2000 pounds to 6000 pounds.  For the 
                  diagnostic level inertia simulation, the 25 horsepower 
                  criterion is a requirement on acceleration only, while for 
                  the full inertia simulation option, the requirement is for 
                  both acceleration and deceleration.  Mechanical inertia 
                  simulation shall be provided in 500 pound increments; 
                  electric inertia simulation shall be provided in 1 pound 
                  increments.  Any deviation from the stated inertia shall be 
                  quantified and the inertia simulation shall be corrected 
                  accordingly.  Mechanical or electrical inertia simulation, 
                  or a combination of both, may be used, subject to review 
                  and approval by the state.

                  (A)   DIAGNOSTIC LEVEL SIMULATION.

                        1.  SYSTEM RESPONSE.  The torque response to a step 
                            change shall be at least 90% of the requested 
                            change within 300 milliseconds.

                        2.  SIMULATION ERROR.  An inertia simulation error 
                            (ISE) shall be continuously calculated any time 
                            the actual dynamometer speed is between 10 MPH 
                            and 60 MPH.  The ISE shall be calculated by the


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                            equation in Section 85.3(a)(4)(ii)(C), and shall 
                            not exceed 3% of the inertia weight selected 
                            (IWs) for the vehicle under test.

                  (B)   FULL INERTIA SIMULATION. (Recommended Option)

                        1.  SYSTEM RESPONSE.  The torque response to a step 
                            change shall be at least 90% of the requested 
                            change within 100 milliseconds after a step 
                            change is commanded by the dynamometer control 
                            system, and shall be within 2% of the commanded 
                            torque by 300 milliseconds after the command is 
                            issued.  Any overshoot of the commanded torque 
                            value shall not exceed 25% of the torque value.

                        2.  SIMULATION ERROR.  An inertia simulation error 
                            (ISE) shall be continuously calculated any time 
                            the actual dynamometer speed is between 10 MPH 
                            and 60 MPH.  The ISE shall be calculated by the 
                            equation in Section 85.3 (a)(4)(ii)(C), and 
                            shall not exceed 1% of the inertia weight 
                            selected (IWs) for the vehicle under test.

                  (C)   INERTIA SIMULATION ERROR CALCULATION.

                        ISE = [(IWs  - It ) / (IWs )] * 100

                                     (1)             t
                        It  = Im  + (--)  -intergral-  (Fm  - Frl) dt
                                     (V)             0       

                        Where:
                        ISE           = Inertia Simulation Error

                        IWs           = Inertia Weight Selected
                          
                        It            = Total inertia being simulated by the 
                                        dynamometer (kg)

                        It (lb force) = It (kg) * 2.2046
                         
                        Im            = Base (mechanical inertia of the 
                                        dynamometer (kg)

                        V             = Measured roll speed (m/s)

                        Fm            = Force measured by the load cell 
                                        (translated to the roll surface) (N)

                        Frl           = Road load force (N) required by IHP 
                                        at the measure roll speed (V)

                        t             = Time (sec)

      (5)   OTHER REQUIREMENTS.

            (i)   VEHICLE SPEED.  The measurement of roll speed shall be 
                  accurate within 0.1 mph over the full operating range.  
                  The dynamometer shall accommodate vehicle speeds of up to 
                  60 mph.

            (ii)  VEHICLE RESTRAINT.  The vehicle shall be restrained during 
                  the driving cycle.  The restraint system shall be designed 
                  to insure that vertical and horizontal


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                  force on the drive wheels does not significantly affect 
                  emission levels.  The restraint system shall allow 
                  unobstructed vehicle ingress and egress and shall be 
                  capable of safely restraining the vehicle under all 
                  reasonable operating conditions without damaging the 
                  suspension system.

            (iii) VEHICLE COOLING.  The test system shall provide for a 
                  method to prevent overheating of the vehicle.  The test 
                  shall be conducted with the hood open and the cooling 
                  system activated when ambient temperature exceeds 72 
                  DEG. F. The cooling method used shall direct air to 
                  the test vehicle's cooling system.  The cooling system 
                  capacity shall be at least 3000 SCFM within 12 inches of 
                  the intake to the vehicle's cooling system.  The cooling 
                  system shall avoid improper cooling of the catalytic 
                  converter.

            (iv)  FOUR-WHEEL DRIVE.  If used, four-wheel drive dynamometers 
                  shall insure the application of correct vehicle loading as 
                  defined in Section 85.3(a)(2), shall not damage the four 
                  wheel drive system of the vehicle, and shall accommodate 
                  vehicles equipped with anti-lock brakes and/or traction 
                  control.  Front and rear wheel rolls shall maintain speed 
                  synchronization within 0.2 mph.

            (v)   INSTALLATION.  Either in-floor or above ground 
                  installations of the dynamometer are acceptable.  In all 
                  cases, installation must be performed so that the test 
                  vehicle is approximately level (PLUS/MINUS 5 DEG.) while on 
                  the dynamometer during testing.

            (vi)  AUGMENTED BRAKING.  Dynamometers shall apply augmented 
                  braking on major decelerations during transient drive 
                  cycles, if such cycles are used in the program.  The 
                  dynamometer software shall provide a signal output to 
                  inform the operator when augmented braking is activated.

(b)   Emission Sampling System.

      (1)   The sampling system shall be designed to insure durable, leak 
            free operation and be easily maintained.  Materials that are in 
            contact with the gases sampled shall not contaminate or change 
            the character of the gases to be analyzed, including gases from 
            vehicles not fueled by gasoline (except diesels). The system 
            shall be designed to be corrosion-resistant and be able to 
            withstand typical vehicle exhaust temperatures when the vehicle 
            is driven through the ASM test cycle for 290 seconds.

      (2)   The sampling system shall draw exhaust gas from the vehicle, 
            shall remove particulate matter and aerosols from the sampled 
            gas, shall drain condensed water from the sample if necessary, 
            and shall deliver the resultant gas sample to the 
            analyzers/sensors for analysis and then deliver the analyzed 
            sample directly outside the building.  The sampling system shall, 
            at a minimum, consist of a tailpipe probe, flexible sample line, 
            water removal system, a particulate trap, sample pump, and flow 
            control components.



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      (3)   SAMPLE PROBE.

            (i)   INSERTION.  The sample probe shall allow at least a 16 inch 
                  insertion depth of the sample point into the vehicle's 
                  exhaust.  In addition, the probe shall be inserted at least 
                  1O inches into the vehicle's exhaust.  Use of a tailpipe 
                  extension is permitted as long as the extension does not 
                  change the exhaust back pressure by more than PLUS/MINUS 1.0 
                  inch of water pressure.

            (ii)  RETENTION.  The probe shall incorporate a positive means of 
                  retention to prevent it from slipping out of the tailpipe 
                  during use.  High through-put test systems may use 
                  alternative means to insure probe retention.

            (iii) FLEXIBILITY.  The probe shall be designed so that the tip 
                  extends 16 inches into the tailpipe.  The probe tip shall 
                  be shielded so that debris is not scooped up by the probe 
                  when it is inserted into the tailpipe.  High through-put 
                  test systems may use alternative means to insure adequate 
                  probe insertion.

            (iv)  PROBE TIP.  Probe tips shall be designed and constructed to 
                  prevent sample dilution.

            (v)   MATERIALS.  All materials in contact with exhaust gas prior 
                  to and throughout the measurement portion of the system 
                  shall be unaffected by and shall not affect the sample 
                  (i.e., the materials shall not react with the sample, and 
                  they shall not taint the sample).  Acceptable materials 
                  include stainless steel, Teflon, silicon rubber, and 
                  Tedlar.  Dissimilar metals with thermal expansion factors 
                  of more than 5% shall not be used in either the 
                  construction of probes or connectors.  The sample probe 
                  shall be constructed of stainless steel or other 
                  non-corrosive, non-reactive material which can withstand 
                  exhaust gas temperatures at the probe tip of up to 1,000_F 
                  for 10 minutes.

            (vi)  SYSTEM HOSES AND CONNECTIONS.  Hoses and all other sample 
                  handling components must be constructed of, or plated with 
                  a non-reactive, non-corrosive, high temperature material 
                  which will not affect, or be affected by, the exhaust 
                  constituents and tracer gases.

            (vii) DUAL EXHAUST.  The sample system shall provide for the 
                  testing of dual exhaust equipped vehicles.  When testing a 
                  vehicle with functional dual exhaust pipes, a dual sample 
                  probe of a design certified by the analyzer manufacturer to 
                  provide equal flow in each leg shall be used.  The equal 
                  flow requirement is considered to be met if the flow rate 
                  in each leg of the probe has been measured under two sample 
                  pump flow rates (the normal rate and a rate equal to the 
                  onset of low flow), and if the flow rates in each of the 
                  legs are found to be equal to each other (within 15% of the 
                  flow rate in the leg having lower flow).

      (4)   PARTICULATE FILTER.  The particulate filter shall be capable of 
            trapping 97% of all particulate and aerosols 5 microns or larger. 
            The filter element shall not absorb or adsorb hydrocarbons.  The 
            filter housing shall be transparent or translucent to allow the 
            operator to observe the filter element's condition without 
            removing the housing.



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            The filter element shall be easily replaceable and shall provide for
            reliable sealing after filter element changes.

      (5)   WATER TRAP.  The water trap shall be sized to remove exhaust sample 
            water from vehicles fueled with gasoline, propane, compressed 
            natural gas, reformulated gasoline, alcohol blends or neat, and 
            oxygenated fuels.  The filter element, bowl and housing shall be 
            inert to these fuels as well as to the exhaust gases from vehicles 
            burning these fuels.  The condensed water shall be drained from the 
            water trap's bowl either continuously or automatically on a 
            periodic basis such that the following performance requirement is 
            maintained. Sufficient water shall be trapped, regardless of fuel, 
            to prevent condensation in the sample system or in the optical 
            bench's sample cell.

      (6)   LOW FLOW INDICATION.  The analyzer shall lock out official 
            testing when the sample flow is below the acceptable level. The 
            sampling system shall be equipped with a flow meter (or 
            equivalent) that shall indicate sample flow degradation when 
            measurement error exceeds 3% of the gas value used for checking, 
            or causes the system response time to exceed 13 seconds to 
            90 percent of a step change in input (excluding NO), whichever is 
            less.

      (7)   EXHAUST VENTILATION SYSTEM.  The high quantities of vehicle 
            emissions generated during loaded mode testing shall be properly 
            vented to prevent buildup of hazardous concentrations of HC, CO, 
            C02 and NOx.  Sufficient ventilation shall be provided in the 
            station to maintain HC, CO, C02 and NO levels below OSHA 
            standards.

            (i)   The ventilation system shall discharge the vehicle exhaust
                  outside the building.

            (ii)  The flow of the exhaust collection system shall not cause
                  dilution of the exhaust at the sample point in the probe.

            (iii) The flow of the exhaust collection system shall not cause a
                  change of more than PLUS/MINUS 1.0 inches of water pressure 
                  in the vehicle's exhaust system at the exhaust system outlet.

(c)   Analytical Instruments.

      (1)   GENERAL REQUIREMENTS.

            (i)   MEASURED GASES.  The analyzer system shall consist of
                  analyzers for HC, CO, NO, and C02, (02 optional) and digital
                  displays for exhaust concentrations of HC, CO, NO, and C02,
                  and for vehicle speed.

            (ii)  EMISSION ACCURACY.  The system shall ensure that the
                  analytical system provides an accurate accounting of the
                  actual exhaust emissions produced during the test, taking into
                  consideration the individual channel accuracies,
                  repeatabilities, interference effects, sample transport times,
                  and analyzer response times.


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            (iii) SAMPLE RATE.  The analyzer shall be capable of measuring 
                  exhaust concentrations of the gases specified in 
                  Section 85.3(c)(1)(i) at a minimum rate of once per second.

            (iv)  ALTERNATIVE EQUIPMENT.  Alternative analytic equipment 
                  specification, materials, designs, or detection methods may 
                  be allowed if proposed by a state and upon a determination 
                  by the Administrator, that for the purpose of properly 
                  conducting a test, the evidence supporting such deviations 
                  will not significantly affect the proper measurement of 
                  emissions.

      (2)   PERFORMANCE REQUIREMENTS.

            (i)   TEMPERATURE OPERATING RANGE.  The analyzer system and all 
                  associated hardware shall operate within the performance 
                  specifications described in Section 85.3(c)(3) at ambient 
                  air temperatures ranging from 35_F to 110_F.  Analyzers 
                  shall be designed so that adequate air flow is provided 
                  around critical components to prevent overheating (and 
                  automatic shutdown) and to prevent the condensation of 
                  water vapor which could reduce the reliability and 
                  durability of the analyzer.  The analyzer system shall 
                  otherwise include necessary features to keep the sampling 
                  system within the specified range.

            (ii)  HUMIDITY OPERATING RANGE.  The analyzer system and all 
                  associated hardware shall operate within the performance 
                  specifications described in Section 85.3(c)(3) at a 
                  minimum of 85% relative humidity throughout the required 
                  temperature range.

            (iii) INTERFERENCE EFFECTS.  The interference effects for 
                  non-interest gases shall not exceed PLUS/MINUS 4 ppm for 
                  hydrocarbons, PLUS/MINUS 0.02% for carbon monoxide, 
                  PLUS/MINUS 0.20% for carbon dioxide, and PLUS/MINUS 20 ppm 
                  for nitric oxide when using the procedure specified in 
                  Section 85.4(d)(5)(iv). Corrections for collision-broadening 
                  effects of combined high CO and C02 concentrations shall be 
                  taken into account in developing the factory calibration 
                  curves, and are included in the accuracy specifications.

            (iv)  BAROMETRIC PRESSURE COMPENSATION.  Barometric pressure 
                  compensation shall be provided.  Compensation shall be made 
                  for elevations up to 6000 feet (above mean sea level).  At 
                  any given altitude and ambient conditions specified in 
                  Section 85.3(c)(2)(i) and (ii), errors due to barometric 
                  pressure changes of PLUS/MINUS 2 inches of mercury shall not 
                  exceed the accuracy limits specified in Section 85.3(c)(3).

            (v)   SYSTEM LOCKOUT DURING WARM-UP.  Functional operation of the 
                  gas sampling unit shall remain disabled through a system 
                  lockout until the instrument meets stability and warm-up 
                  requirements.  The instrument shall be considered "warm" 
                  when the zero and span readings for HC, CO, NO, and C02 
                  have stabilized, within the accuracy values specified in 
                  Section 85.3(c)(3) for five minutes without adjustment.


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            (vi)   ZERO DRIFT LOCKOUT.  If zero or span drift cause the 
                   optical bench signal levels to move beyond the adjustment 
                   range of the analyzer, the system shall be locked out from 
                   testing.

            (vii)  ELECTROMAGNETIC ISOLATION AND INTERFERENCE.  
                   Electromagnetic signals found in an automotive service 
                   environment shall not cause malfunctions or changes in the 
                   accuracy in the electronics of the analyzer system.  The 
                   instrument design shall ensure that readings do not vary 
                   as a result of electromagnetic radiation and induction 
                   devices normally found in the automotive service 
                   environment, including high energy vehicle ignition 
                   systems, radio frequency transmission radiation sources, 
                   and building electrical systems.

            (viii) VIBRATION AND SHOCK PROTECTION.  System operation shall be 
                   unaffected by the vibration and shock encountered under 
                   the normal operating conditions encountered in an 
                   automotive service environment.

            (ix)   PROPANE EQUIVALENCY FACTOR.  The nominal PEF range shall 
                   be between 0.490 and 0.540. For each audit/calibration 
                   point, the nominal PEF shall be conveniently displayed for 
                   the quality assurance inspector and other authorized 
                   personnel. If an optical bench must be replaced in the 
                   field, any external labels shall be changed to correspond 
                   to the nominal PEF of the new bench.  The analyzer shall 
                   incorporate an algorithm relating PEF to HC concentration. 
                   Corrections shall be made automatically.  The corrected 
                   PEF value may cover the range of 0.470 to 0.560.

            (x)    SYSTEM RESPONSE REQUIREMENTS.  The response time from the 
                   probe to the display for HC, CO, and C02 analyzers shall 
                   not exceed 8 seconds for 90% of a step change in input, 
                   nor shall it exceed 12 seconds to 95% of a step change in 
                   input.  The response time for a step change in 02 from 
                   20.9% 02 to 0. 1% 02 shall be no longer than 40 seconds.  
                   For NO analyzers, the response time shall not exceed 
                   12 seconds for 90% of a step change in input.  The response 
                   time for a step change in NO from a stabilized reading to 
                   10% of that reading shall be no longer than 12 seconds.

      (3)   DETECTION METHODS, INSTRUMENT RANGES, ACCURACY, AND REPEATABILITY.

            (i)    HYDROCARBON ANALYSIS.  Hydrocarbon analysis shall be 
                   determined by nondispersive infrared (NDIR) analyzer.  The 
                   analyzer shall cover at least the range of 0 ppm HC to 
                   9999 ppm HC, where ppm HC is parts per million of 
                   hydrocarbon volume as hexane.  The accuracy of the 
                   instrument from 0-2000 ppm HC shall be PLUS/MINUS 3% of 
                   point or 4 ppm C6, whichever is greater.  The accuracy of 
                   the instrument between 2001 ppm HC and 5000 ppm HC shall 
                   be at least PLUS/MINUS 5% of point.  The accuracy of the 
                   instrument between 5001 ppm HC and 9999 ppm HC shall be at 
                   least PLUS/MINUS 10% of point.  The instrument shall 
                   comply with the quality control specifications in Section 
                   85.4(d).

            (ii)   CARBON MONOXIDE ANALYSIS.  Carbon monoxide analysis shall 
                   be determined by non-dispersive infrared (NDIR) analyzer. 
                   The analyzer shall cover at least 


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<PAGE>


               the range of 0.00% CO to 14.00% CO, where % CO is % volume CO. 
               The accuracy of the instrument between 0.01% and 10.00% CO 
               shall be PLUS/MINUS 3% of point or 0.02% CO, whichever is 
               greater. The accuracy of the instrument between 10.01% and 
               14.00% shall be at least PLUS/MINUS 5% of point.  The 
               instrument shall comply with the quality control 
               specifications in Section 85.4(d).

         (iii) CARBON DIOXIDE ANALYSIS.  Carbon dioxide analysis shall be 
               determined by non-dispersive infrared (NDIR) analyzer.  The 
               analyzer shall cover at least the range of 0.0% CO2 to 18.0% 
               CO2. The accuracy of the instrument between 0.01% and 16.00% 
               CO2 shall be PLUS/MINUS 3% of point or 0.3% CO2, whichever is 
               greater.  The accuracy of the instrument between 16.01% and 
               18.00% shall be at least PLUS/MINUS 5% of point.  The 
               instrument shall comply with the quality control 
               specifications in Section 85.4(d).

          (iv) NITRIC OXIDE ANALYSIS.  The analyzer shall cover at least the 
               range of 0 ppm NO to 5000 ppm NO, where ppm NO is parts per 
               million nitric oxide.  The accuracy of the instrument between 
               0 and 4000 ppm shall be at least PLUS/MINUS 4% of point or 25 
               ppm NO, whichever is greater.  The accuracy of the instrument 
               between 4001 and 5000 ppm shall be at least PLUS/MINUS 8% of 
               point.  The instrument shall comply with the quality control 
               specifications in Section 85.4(d).

           (v) OXYGEN ANALYSIS. (optional) If an oxygen analyzer is included, 
               the analyzer shall cover at least the range of 0.0% O2 to 
               25.0% O2. The accuracy of the instrument over this range shall 
               be at least 5% of point or PLUS/MINUS 0.1% O2, whichever is 
               greater.  The instrument shall comply with the quality control 
               specifications in Section 85.4(d).

          (vi) REPEATABILITY.  The repeatability for the HC analyzer in the 
               range of 0-1400 ppm HC shall be 2% of point or 3 ppm HC 
               absolute, whichever is greater.  In the range of 1400-2000 ppm 
               HC, the repeatability shall be 3% of point.  The repeatability 
               for the CO analyzer in the range of 0-7.00% CO shall be 2% of 
               point or 0.02% CO absolute, whichever is greater.  In the 
               range of 7.00% to 10.00% CO, the repeatability shall be 3% of 
               point.  The repeatability for the CO2 analyzer in the range 
               of 0-10.0% CO2 shall be 2% of point or 0.1% CO2 absolute, 
               whichever is greater. In the range of 10.0% to 16.0% CO2, 
               the repeatability shall be 3% of point.  The repeatability of 
               the NO analyzer shall be 3% of point or 20 ppm NO, whichever 
               is greater.  The repeatability of the O2 analyzer shall be 
               3% of point or 0.1% O2, whichever is greater.

         (vii) ROUNDING RULE.  Rounding beyond the decimal places shown in 
               Section 85.3(c)(3) shall follow the standard mathematical 
               practice of going to the next higher number for any numerical 
               value of five or more.  This shall also hold true for 
               pass/fail decisions.  For example, if 2.00% CO passes and 
               2.01% CO fails, and the reading is 2.0049%, the value shall be 
               rounded down and the decision shall be a pass.  If the reading 
               is 2.0050, the value shall be rounded up and the decision 
               shall be a fail.  The value displayed and printed on the test 
               report shall be consistent with the value used for the 
               pass/fail decision.

PAGE 26                              7/2/96        TEST EQUIPMENT SPECIFICATIONS

<PAGE>

      (4) AMBIENT CONDITIONS.  The current relative humidity, dry-bulb 
          temperature, and barometric pressure shall be measured and recorded 
          prior to the start of every inspection in order to calculate Kh 
          (nitric oxide correction factor Section 85.1(b)(1)(v)).

          (i)  RELATIVE HUMIDITY.  The relative humidity measurement device 
               shall cover the range from 5% to 95% RH, between 35_F - 110_F, 
               with a minimum accuracy of PLUS/MINUS 3% RH.  Wet bulb 
               thermometers shall not be used.

          (ii) DRY-BULB TEMPERATURE.  The dry-bulb temperature device shall 
               cover the range from 0_F - 140_F with a minimum accuracy of 
               3_F.

         (iii) BAROMETRIC PRESSURE.  The barometric pressure measurement 
               device shall cover the range from 610 mm Hg - 810 mm Hg 
               absolute (24-32 inches), and 35_F - 110_F, with a minimum 
               accuracy of PLUS/MINUS 3% of point or better.

      (5) ENGINE SPEED DETECTION.  The analyzer shall utilize a tachometer 
          capable of detecting engine speed in revolutions per minute (rpm) 
          with a 0.5 second response time and an accuracy of PLUS/MINUS 3% of 
          the true rpm.  Starting in 1998, on vehicles equipped with onboard 
          diagnostic (OBD) systems, the engine speed shall be taken by 
          connecting to the SAE standardized OBD link on 1996 and newer 
          vehicles.  RPM readings shall be recorded on a second-by-second 
          basis for the 10 second period upon which the pass/fail basis is 
          based.

      (6) OBD FAULT CODE RETRIEVAL.  Starting in 1998, the system shall 
          include the hardware and software necessary to access the onboard 
          computer systems on 1996 and newer vehicles, determine OBD 
          readiness, and recover stored fault codes using the SAE 
          standardized link.

(d) Automated Test Process Software and Displays.

      (1) SOFTWARE.  The testing process, data collection, and quality 
          control features of the analyzer system shall be automated to the 
          greatest degree possible.  The software shall automatically select 
          the emission standards and set the vehicle load based on an 
          EPA-provided or approved look-up table.  Vehicle identification 
          information shall be derived from a database accessed over a 
          real-time data system to a host computer system.  Entry of license 
          plate and all or part of the VIN shall be sufficient to access the 
          vehicle record.  Provision shall be made for manual entry of data 
          for vehicles not in the host computer system.

      (2) TEST AND MODE TIMERS.  The analyzer shall be capable of 
          simultaneously determining the amount of time elapsed in a test 
          (overall test time), and in a mode within that test (mode time).

      (3) CLOCKS AND TIMERS.  The clock used to check the coast-down time 
          shall be accurate to within 0.1% of reading between 0.5 and 100 
          seconds, with a resolution of 0.001 seconds.  The test mode timers 
          used shall be accurate to within 0.1% of reading between 10 and 
          1000 seconds with a resolution of 0.1 seconds.


PAGE 27                             7/2/96         TEST EQUIPMENT SPECIFICATIONS

<PAGE>

      (4) DRIVER'S AID.  The system shall be equipped with a driver's aid 
          that shall be clearly visible to the driver as the test is 
          performed.  The aid shall continuously display the required speed, 
          the number of seconds into the test mode, the driver's actual 
          speed/time performance (a display showing the deviation between 
          set-point and actual driving trace), engine RPM, the use of 
          augmented braking, and necessary prompts and alerts.  The driver's 
          aid shall also be capable of displaying test and equipment status 
          and other messages as required.  Dynamic information being 
          displayed shall be refreshed at a minimum rate of twice per second. 
          Emissions values shall not be displayed during official testing.

      (5) MINIMUM ANALYZER DISPLAY RESOLUTION.  The analyzer electronics 
          shall have sufficient resolution to achieve the following:

<TABLE>
<CAPTION>
<S>                                   <C>      <C>
              HC                      1        ppm HC as hexane
              NO                      1        ppm NO
              CO                      0.01     % CO
              CO2                     0.1      % CO2
              O2                      0.1      % O2(optional)
              RPM                     10       RPM
              Speed                   0.1      mph
              Load                    0.1      hp
              Relative Humidity       1        % RH
              Dry Bulb Temperature    1        _F
              Barometric Pressure     1        mm HG
</TABLE>




PAGE 28                             7/2/96         TEST EQUIPMENT SPECIFICATIONS

<PAGE>


Section 85.4   QUALITY CONTROL REQUIREMENTS

(a)   General Requirements

      (1) MINIMUMS.  The frequency and standards for quality control 
          specified here are minimum requirements, unless modified as 
          specified in Section 85.4(a)(2). Greater frequency or tighter 
          standards may be used as needed.

      (2) STATISTICAL PROCESS CONTROL.  Reducing the frequency of the quality 
          control checks, modifying the procedure or specification, or 
          eliminating the quality control checks altogether may be allowed if 
          the state demonstrates and the Administrator determines, for the 
          purpose of properly conducting an approved short test, that 
          sufficient Statistical Process Control (SPC) data exist to make a 
          determination, that the SPC data support such action, and that 
          taking such action will not significantly reduce the quality of the 
          emissions measurements.  Should emission measurement performance or 
          quality deteriorate as a result of allowing such actions, the 
          approval shall be suspended and the frequencies, procedures 
          specifications, or checks specified here or otherwise approved 
          shall be reinstated, pending further determination by the 
          Administrator.

(b)   Dynamometer

      (1) COAST DOWN CHECK.

           (i) The calibration of each dynamometer shall be automatically 
               checked every 72 hours in low volume stations (less than 4000 
               tests per year) and daily in high volume stations by a 
               dynamometer coast-down procedure equivalent to Section 
               86.118-78 (for reference see National Vehicle and Fuel 
               Emission Laboratory's Testing Services Division test procedure 
               TP-302A and TP-202) between the speeds of 30-20 mph if the 
               ASM2525 is used and 20-10 mph if the ASM5015 is used.  All 
               rotating dynamometer components shall be included in the 
               coast-down check.  Speed windows smaller than PLUS/MINUS 5 mph 
               may be used provided that they show the same calibration 
               capabilities.

          (ii) The base dynamometer inertia (2000 pounds) shall be checked at 
               two random horsepower settings for each speed range.  The two 
               random horsepower settings shall be between 8.0 and 18.0 
               horsepower.  A shunt resistor for a load cell performance 
               check shall not be used.

         (iii) The coast-down procedure shall use a vehicle off-dynamometer 
               type method or equivalent.  Using a vehicle to bring the 
               dynamometer up to speed and removing the vehicle before the 
               coast-down shall not be permitted.  If either the measured 
               30-20 mph coast-down time or 20-10 mph coast-down time is 
               outside the window bounded by the Calculated Coast-Down Time 
               (CCDT) (seconds) PLUS/MINUS 7% then it shall be locked out for 
               official testing purposes until recalibration allows a passing 
               value.

                (A) Randomly select an IHP2525 value that is between 8.0 hp 
                    and 18.0 hp and set dynamometer PAU to this value.


PAGE 29                            7/2/96           QUALITY CONTROL REQUIREMENTS


<PAGE>

Section 85.4                                                      Section 85.4

                        Coast-down dynamometer from 30-20 mph.
                                       (0.5 * DIW)       2    2
                                       (---------) * (V   -V   )
                        CCDT @ 25 mph =(    32.2 )     30   20
                                       (---------------------------
                                       (550 * (IHP2525 + PLHP25)
                                                         
                          Where:

                          DIW      =  Dynamometer Inertia Weight. Total 
                                      "inertia" weight of all rotating 
                                      components in dynamometer.

                          V30      =  Velocity in feet/sec at 30 mph.
                           
                          V20      =  Velocity in feet/sec at 20 mph.
                           
                          IHP2525  =  Randomly selected ASM2525 indicated
                                       horsepower.

                          PLHP25   =  Parasitic Horsepower for specific 
                                      dynamometer at 25 mph.

                   (B)  Randomly select an IHP5015 value that is between 8.0 
                        hp and 18.0 hp and set dynamometer PAU to this value.

                        Coast-down dynamometer from 20-10 mph.

                                       (0.5 * DIW)
                                       (---------)        2    2
                                       (   32.2  )   *(V   -V   )
                        CCDT @ 15 mph =(         )      20   10
                                       (----------------------------
                                       (550 * (IHP5015 + PLHP15 )
                                                         

                          Where:

                          DIW      =   Dynamometer Inertia Weight. Total
                                       "inertia" weight of all rotating
                                       components in dynamometer.

                          V20      =   Velocity in feet/sec at 20 mph.
                           
                          V10      =   Velocity in feet/sec at 10 mph.
                           
                          IHP5015  =   Randomly selected ASM5015 indicated
                                       horsepower.

                          PLHP15   =   Parasitic Horsepower for specific 
                                       dynamometer at 15 mph.

      (2)  PARASITIC VALUE CALCULATIONS.

           (i)  Parasitic losses shall be calculated using the following 
                equations at 25 and 15 mph whenever a coast-down check is 
                performed.  The indicated horsepower (IHP) shall be set to 
                zero for these tests.  This is only necessary if the 
                coast-down values do not verify in Section 85.4(b)(1)(iii) 
                above.


PAGE 30                       7/2/96               QUALITY CONTROL REQUIREMENTS

<PAGE>

Section 85.4                                                       Section 85.4

           (ii)   Parasitic losses at 25 mph for a dynamometer with specified
                  diameter rollers.

                                                      2    2
                                    (0.5 * DIW) * (V   -V   )
                                    (---------)     30   20
                                    (  32.2   )
                         PLHP25  =  (----------------------
                                    (     550 * (ACDT)

                             Where:

                             DIW  =    Dynamometer Inertia Weight. Total
                                       "inertia" weight of all rotating
                                       components in dynamometer.

                             V30   =  Velocity in feet/sec at 30 mph.
                              
                             V20   =  Velocity in feet/sec at 20 mph.
                              
                             ACDT  =  Actual coast-down time required
                                      for dynamometer to coast from 30 to
                                      20 mph.

           (iii)  Parasitic losses at 15 mph for a dynamometer with specified 
                  diameter rollers.

                                                      2    2
                                    (0.5 * DIW) * (V   -V   )
                                    (---------)     20   10
                                    (  32.2   )
                          PLHP15  = (----------------------
                                    (     550 * (ACDT)

                             Where:

                             DIW  =    Dynamometer Inertia Weight. Total
                                       "inertia" weight of all rotating
                                       components in dynamometer.

                             V20   =  Velocity in feet/sec at 20 mph.
                              
                             V10   =  Velocity in feet/sec at 10 mph.
                              
                             ACDT  =  Actual coast-down time required
                                      for dynamometer to coast from 20 to
                                      10 mph.

      (3)  ROLL SPEED.  Roll speed and roll counts shall be checked at least 
           once per week by an independent means (e.g., photo tachometer).  
           Deviations greater than PLUS/MINUS 0.2 mph or a comparable tolerance
           in roll counts shall require corrective action. Alternatively, a 
           redundant roll speed transducer independent of the primary 
           transducer may be used in lieu of the weekly comparison.  
           Accuracy of redundant systems shall be checked bimonthly.

      (4)  LOAD MEASURING DEVICE.  If the dynamometer fails a coast-down 
           check or requires a recalibration for any other reason, the load 
           measuring device shall be checked using dead-weight method or an 
           equivalent procedure proposed by the state and approved by the 
           Administrator.  The check shall cover at least three points over 
           the range of loads used for vehicle testing.  Dead weights shall 
           be traceable to the National Institute of Standards (NIST) and 
           shall be accurate to within PLUS/MINUS 0.1%. The dynamometer shall 
           provide an automatic load measuring device calibration and 
           verification feature.

      (5)  ACCEPTANCE CHECK.

PAGE 31                             7/2/96         QUALITY CONTROL REQUIREMENTS

<PAGE>

Section 85.4                                                       Section 85.4

          (i)   LOAD CELL VERIFICATION (if equipped).  This test confirms the 
                proper operation of the dynamometer load cell and associated 
                systems. Weights in the proper range shall be supplied by the 
                system supplier.  Weights shall be NIST traceable to 0.1% of 
                point.

                (A)  Calibrate the load cell according to the manufacturer's 
                     direction.

                (B)  Using a dead weight method, load the test cell to 20%, 
                     40%, 60%, and 80% (in ascending order) of the range used 
                     for ASM testing.  Record the readings for each weight.  
                     Remove the weights in the same steps (descending order) 
                     and record the results.

                (C)  Perform steps A through B two more times (total of 
                     three).  Calculate the average value for each weight.  
                     Multiply each average weight from E by the length of the 
                     torque arm.

                (D)  ACCEPTANCE CRITERIA: The difference for each reading 
                     from the weight shall not exceed 1% of full scale.

          (ii)  SPEEDOMETER VERIFICATION.  This test confirms the accuracy of 
                the dynamometer's speedometer.

                (A)  Set dynamometer speed to 15 mph.  Independently measure 
                     and record dynamometer speed.  Repeat at 25 mph.

                (B)  ACCEPTANCE CRITERIA: The difference for each reading 
                     from set dynamometer speed shall not exceed 0.2 mph.

         (iii)  PARASITICS VERIFICATION.  Parasitic losses shall be 
                calculated using the following equations at 25 and 15 mph.  
                The indicated horsepower (IHP) shall be set to zero for these 
                tests.  Using time versus speed data from the system, 
                calculate PLHP for 25 mph and 15 mph.

               (A)   Parasitic losses at 25 mph for a dynamometer with 
                     specified diameter rollers.

                                                      2    2
                                    (0.5 * DIW) * (V   -V   )
                                    (---------)     30   20
                                    (  32.2   )
                         PLHP25  =  (----------------------
                                    (     550 * (CDT)

                             Where:

                             DIW  =    Dynamometer Inertia Weight. Total
                                       "inertia" weight of all rotating
                                       components in dynamometer.

                             V30   =  Velocity in feet/sec at 30 mph.
                              
                             V20   =  Velocity in feet/sec at 20 mph.
                              
                             CDT   =  Coast-down time required for
                                      dynamometer to coast from 30 to
                                      20 mph.


PAGE 32                        7/2/96              QUALITY CONTROL REQUIREMENTS

<PAGE>

Section 85.4                                                       Section 85.4

                (B)  Parasitic losses at 15 mph for a dynamometer with
                     specified diameter rollers.

                                                      2    2
                                    (0.5 * DIW) * (V   -V   )
                                    (---------)     20   10
                                    (  32.2   )
                         PLHP15  =  (----------------------
                                    (     550 * (CDT)

                             Where:

                             DIW  =    Dynamometer Inertia Weight. Total
                                       "inertia" weight of all rotating
                                       components in dynamometer.

                             V20   =  Velocity in feet/sec at 20 mph.
                              
                             V10   =  Velocity in feet/sec at 10 mph.
                              
                             ACDT  =  Coast-down time required for
                                      dynamometer to coast from 20 to
                                      10 mph.



                (C)   ACCEPTANCE CRITERIA: The difference between the 
                      externally calculated value and the machine calculated 
                      value shall not exceed 0.25 HP.

          (iv)  VERIFY COAST-DOWN.  The coast-down procedure shall use a 
                vehicle off-dynamometer type method or equivalent.  Using a 
                vehicle to bring the dynamometer up to speed and removing the 
                vehicle before the coast-down shall not be permitted.

                (A)  Randomly select an IHP2525 value that is between 8.0 hp 
                     and 18.0 hp and set dynamometer PAU to this value.

                     Coast-down dynamometer from 30-20 mph.
                                                            2     2
                                          (0.5 * DIW) * (V   - V   )
                                          (---------)     30    20
                                          (  32.2   )
                          CCDT @25 mph =  (----------------------------------
                                          ( 550 * (IHP2525yy  + PLHP25 - yy)
                                                                    

                             Where:

                             DIW       =  Dynamometer Inertia Weight. Total
                                          "inertia" weight of all rotating
                                          components in dynamometer.

                             V30       =  Velocity in feet/sec at 30 mph.
                              
                             V20       =  Velocity in feet/sec at 20 mph.
                              
                             IHP2525   =  Randomly selected ASM2525 indicated
                                          horsepower.

                             PLHP25    =  Parasitic Horsepower for specific
                                          dynamometer at 25 mph.

                (B)  Randomly select an IHP5015 value that is between 8.0 hp 
                     and 18.0 hp and set dynamometer PAU to this value.

PAGE 33                    7/2/96                  QUALITY CONTROL REQUIREMENTS

<PAGE>

Section 85.4                                                      Section 85.4

                        Coast-down dynamometer from 20-10 mph.

                                    (0.5 * DIW)
                                    -----------  *  (V(20)(2) - V(10)(2))
                                    (  32.2   )
                                 = -------------------------------------
                   CCDT @ 15 mph   550 * (IHP5015(yy) + PLHP15-(yy))


                        Where:

                        DIW      = Dynamometer Inertia Weight.  Total "inertia"
                                   weight of all rotating components in 
                                   dynamometer.

                        V(20)    = Velocity in feet/sec at 20 mph.

                        V(10)    = Velocity in feet/sec at 10 mph.

                        IHP5015  = Randomly selected ASM5015 indicated
                                   horsepower.

                        PLHP15   = Parasitic Horsepower for specific dynamometer
                                   at 15 mph.

            (C)   ACCEPTANCE CRITERIA: The measured 30-20 mph coast-down time
                  and the 20-10 mph coast-down time must be inside the window
                  bounded by CCDT (seconds) PLUS OR MINUS 7%.

(c)   Emission Sampling System.

      (1)   LEAK CHECK.  The entire sample system shall be checked for vacuum
            leaks on a daily basis and proper flow on a continuous basis.
            This may be accomplished using a vacuum decay method, reading a 
            span gas, or other methods proposed by a state and approved by the 
            Administrator.  The analyzer shall not allow an error of more than 
            1% of reading using the high-range span gas described in Section 
            85.4(d)(2)(iii)(C). The analyzer shall be locked out from testing 
            if the leak check is not performed when due or fails to pass the 
            check.

      (2)   DILUTION.  The flow rate on the analyzer shall not cause more than 
            10% dilution during sampling of exhaust of a 1.6 liter engine a 
            normal idle.  Ten percent dilution is defined as a sample of 90% 
            exhaust and 10% ambient air.

      (3)   DILUTION ACCEPTANCE TEST.

            (i)   Set vehicle with 1.6 liter maximum engine displacement at 
                  factory - recommended idle speed, OEM configuration exhaust
                  system, transmission in neutral, hood up (a fan to cool the
                  engine may be used if needed).  Set idle speed not to exceed
                  920 RPM.  (Set for 900 RPM with a tolerance PLUS OR MINUS 
                  20 RPM.)

           (ii)   With a laboratory grade analyzer system, sample the exhaust 
                  at 40 centimeters depth with a flow sample rate below 320 
                  liters per hour.  Allow sufficient time for this test.  
                  Record all HC, CO, NO, CO(2), and O(2) readings.

PAGE 34                      7/2/96               QUALITY CONTROL REQUIREMENTS
<PAGE>

Section 85.4                                                      Section 85.4

                  A chart recorder or electronically stored data may be used to
                  detect the point of stable readings.

          (iii)   While operating the candidate analyzer system in a mode which
                  has the same flow rate as the official test mode, record the
                  levels of HC, CO, NO, CO(2), and O(2).  Ensure that the probe
                  is installed correctly.

           (iv)   Repeat step (ii).

            (v)   ACCEPTANCE CRITERIA: If the difference of the readings between
                  (ii) and (iv) exceed five percent of the average of (ii) and 
                  (iv), repeat (ii), (iii), and (iv); otherwise average (ii) 
                  and (iv) and compare with (iii).  If (iii) is within 10 
                  percent of the average of (ii) and (iv), then the equipment 
                  meets the dilution specification.

(d)   Analytic Instruments.

      (1)   GENERAL REQUIREMENTS.  The analyzer shall, to the extent possible,
            maintain accuracy between gas calibrations taking into account all
            errors, including noise, repeatability, drift, linearity,
            temperature, and barometric pressure.

      (2)   TWO-POINT GAS CALIBRATION AND LOW-RANGE AUDIT.

            (i)  Analyzers shall automatically require a zero gas calibration 
                 and a high-range gas calibration for HC, CO, NO, and CO(2). 
                 The system shall also use a low-range gas to check the 
                 calibration in the range of vehicle emission standards.  In 
                 high volume stations (4000 or more tests per year), analyzers 
                 shall be calibrated within four hours before each test.  In 
                 low volume stations (below 4000 tests per year), analyzers 
                 shall be calibrated within 72 hours before each test.  If 
                 the system does not calibrate or is not calibrated, the 
                 analyzer shall lock out from testing until corrective action 
                 is taken.

           (ii)  GAS CALIBRATION AND CHECK PROCEDURE.  Gas calibration shall 
                 be accomplished by introducing span gases that meet the
                 requirements of 85.4(d)(2)(iii) into the calibration port. 
                 The pressure in the sample cell shall be the same with the 
                 calibration gas flowing as with the sample flowing during 
                 testing.  The analyzer channels shall be adjusted to the 
                 center of the allowable tolerance range as a result of the 
                 calibration.  The system shall record the gas reading data 
                 from before the adjustment and other data pertinent to 
                 control charting, analyzer performance.

                 (A)  Zero the analyzer and perform a leak check.

                 (B)  Calibrate the analyzer using the high-range calibration 
                      gas specified in Section 85.4(d)(2)(iii).

                 (C)  Introduce the low-range check as specified in Section
                      85.4(d)(2)(iii). If the low-range check gas readings 
                      differ from the label value by more than PLUS OR MINUS 
                      2%, the analyzer shall be locked out from testing.

PAGE 35              7/2/96                       QUALITY CONTROL REQUIREMENTS
<PAGE>

Section 85.4                                                      Section 85.4

          (iii)   The following gases shall be used for the 2-point 
                  calibration and low-range audit.

                  (A) Zero Gas
                      02   =    20.7%
                      HC   <    1 ppm THC
                      CO   <    1 ppm
                      CO(2)<    400 ppm
                      NO   <    1 ppm
                      N(2) =    Balance 99.99% pure

                  (B) Low-Range Audit Gas
                      HC   =    200 ppm propane
                      CO   =    0.5%
                      CO(2)=    6.0%
                      NO   =    300 ppm
                      N(2) =    Balance 99.99% pure

                  (C) High-Range Calibration Gas
                      HC   =    3200 ppm propane
                      CO   =    8.0%
                      C0(2)=    12.0%
                      NO   =    3000 ppm
                      N(2) =    Balance 99.99% pure

           (iv)   TRACEABILITY.  The audit and span gases used for the gas 
                  calibration shall be traceable to National Institute of 
                  Standards and Technology (NIST) standards PLUS OR MINUS 1%. 
                  Gases shall have a zero blend tolerance.  Stations that 
                  use large capacity gas bottles (size B or larger) and that 
                  provide a quality control check to insure proper entry of gas 
                  values, may use gases with a blend tolerance of up to 5%. 
                  Gases with a 5% blend tolerance may also be used by any 
                  station if the analyzer system reads the bar-coded 
                  calibration gas bottle specifications and adjusts the 
                  calibration accordingly.

      (3)   FIVE-POINT CALIBRATION AUDIT.

            (i)   Analyzers shall automatically require and successfully pass 
                  a five point gas audit for HC, CO, NO, and CO(2).  For high 
                  volume stations, audits shall be checked monthly.  In low 
                  volume stations, analyzers shall undergo the audit procedure 
                  every six months.

           (ii)   GAS AUDIT PROCEDURE.  Calibration auditing shall be 
                  accomplished by introducing audit gas through the probe. 
                  The pressure in the sample cell shall be the same with the 
                  audit gas flowing as with the sample flowing during testing.

                  (A) Zero the analyzer and perform a leak check.

PAGE 36                     7/2/96                QUALITY CONTROL REQUIREMENTS
<PAGE>

Section 85.4                                                      Section 85.4

                  (B) Flow the low range audit gas specified in Section 
                      85.4(d)(3)(iii) through the sample probe, ensuring 
                      that the tip is equal to ambient barometric pressure 
                      PLUS OR MINUS 0.1 inches Hg (a balloon teed into the 
                      gas flow line is an acceptable pressure indicator; 
                      the balloon should stand slightly erect).

                  (C) When the HC, CO, NO, and CO(2) readings have stabilized 
                      (no less than 20 seconds of gas flow) record them as 
                      well as the PEF value at each audit blend.

                  (D) Repeat steps B and C for each audit gas specified in 
                      Section 85.4(d)(3)(iii).

                  (E) Compare the readings with the audit gas values. Divide 
                      the HC reading by its PEF using the following 
                      relationship:

                                                (Reading - Cylinder Value)
                                                --------------------------
                           Tolerance % = 100 *        Cylinder Value

                  (F) If the tolerance exceeds PLUS OR MINUS 4.0% for CO, CO(2),
                      and HC/PEF, or PLUS OR MINUS 5.0% for NO, then the 
                      analyzer shall fail the gas audit and shall be locked 
                      out from testing until it passes.

          (iii)   The following gases shall be used for the five-point 
                  calibration audit.

                  (A) Zero Audit Gas
                      O2   =   20.7% (if O2 span is desired)
                      HC   <   0.1 ppm THC
                      CO   <   0.5 ppm
                      CO(2)<   1 PPM
                      NO   <   0.1 ppm
                      N(2) =   Balance 99.99% pure

                  (B) Low Range Audit Gas
                      HC   =   200 ppm propane
                      CO   =   0.5%
                      CO(2)=   6.0%
                      NO   =   300 ppm
                      N(2) =   Balance 99.99% pure

                  (C) Low-Middle Range Audit Gas
                      HC   =   960 ppm propane 
                      CO   =   2.4%
                      CO(2)=   3.6%
                      NO   =   900 ppm
                      N(2) =   Balance 99.99% pure

                  (D) High-Middle Range Audit Gas
                      HC   =   1920 ppm propane
                      CO   =   4.8%

PAGE 37                   7/2/96                  QUALITY CONTROL REQUIREMENTS

<PAGE>

                           C0(2) = 7.2%
                           NO    = 1800 ppm
                           N(2)  = Balance 99.99% pure

                      (E)  High Range Audit Gas 
                           HC    = 3200 ppm propane
                           CO    = 8.0%
                           C0(2) = 12.0% 
                           NO    = 3000 ppm
                           N(2)  = Balance 99.99% pure

     (iv)  TRACEABILITY.  The gases used for the audit shall be traceable to
           National Institute of Standards and Technology (NIST) standards 
           PLUS OR MINUS 1%. Gases shall have a zero blend tolerance.

(4)  SERVICE, REPAIR AND MODIFICATION.

     (i)   Each time an analyzer's emissions measurement system, sensor, or 
           other related electronic components are repaired or replaced, the 
           calibration audit required in Section 85.4(d)(3) shall be performed,
           at a minimum, prior to returning the unit to service.

     (ii)  Each time the sample line integrity is broken, a leak check shall be
           performed prior to testing.

(5)  ACCEPTANCE TESTING.

     (i)   ANALYZER ACCURACY.  This test confirms the ability of the candidate 
           instruments to read various concentrations of gases within the 
           tolerances required by this specification.  The test compares the 
           response of the candidate instrument with that of standard 
           instruments, and also estimates the uncertainty of the readings.

           The analyzer shall be zeroed and gas calibrated using the high-range
           calibration gas.  The instrument shall be tested using propane, 
           carbon monoxide, carbon dioxide, and nitric oxide in nitrogen, with
           a certified accuracy of PLUS OR MINUS 1%, in the following 
           concentrations: 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% of
           full scale for the analyzers.  Full scale is defined in Section 
           85.3(c)(3).

           (A)  Introduce the gases in ascending order of concentrations 
                beginning with the zero gas.  Record the readings of the 
                standard and candidate instruments to each concentration value.

           (B)  After the highest concentration has been introduced and 
                recorded, introduce the same gases to the standard and candidate
                analyzers in descending order, including the zero gas.  Record 
                the reading of analyzers to each gas, including negatives (if 
                any).

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           (C)  Repeat steps A and B for the candidate only, four more times
                (total of five times).

           (D)  Calculations:

                1.   Calculate the average value of each concentration for the 
                     readings of the standard instruments.

                2.   Calculate the mean and standard deviation of each 
                     candidate's readings for each concentration.  Include both
                     upscale and downscale readings for the same gas 
                     concentration. (All calculations may not be possible for 
                     zero concentrations.)

                3.   For each concentration, calculate the difference between 
                     the candidate mean and the standard average.

                4.   For each concentration, compute the following:
                     (i)   Y(1) = x + K(sd)
                     (ii)  Y(2) = x - K(sd)
                     Where
                       K(sd) = std dev * 3.5 for zero and the highest 
                               concentration value
                       K(sd) = std dev * 2.5 for all other concentration values
                       x = mean (arithmetic average) of the set of candidate 
                           readings.

                5.   Compute the uncertainty (U) of the calibration curve for 
                     each concentration as follows:

                     (i)   U(1) = concentration value - Y(1)
                     (ii)  U(2) = concentration value - Y(2)

                6.   ACCEPTANCE CRITERIA:

                     (a)  For each concentration, the differences calculated in
                          Step 3 shall be no greater than the accuracy 
                          tolerances specified in Section 85.3(c)(3) for each 
                          instrument.

                     (b)  For each concentration, the uncertainties, (U(1) 
                          and U(2)) shall be no greater than the accuracy 
                          tolerances required in Section 85.3(c)(3).

     (ii)  ANALYZER SYSTEM REPEATABILITY.  This test characterizes the
           ability of the instrument to give consistent readings when
           repeatedly sampling the same gas concentration.

           (A)  Using an 80% full scale gas, introduce the gas through the
                calibration port.  Record the readings.

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           (B)  Purge with ambient air for at least 30 seconds but no more than
                60 seconds.

           (C)  Repeat steps A and B above four more times.

           (D)  Repeat steps A, B, and C, introducing the gas through the 
                sample probe.

           (E)  ACCEPTANCE CRITERIA: The differences between the highest and
                lowest readings from both ports shall not exceed the values
                specified in Section 85.3(c)(3)(vi).

     (iii) ANALYZER SYSTEM RESPONSE TIME.  This test determines the speed of 
           response of the candidate instrument when a sample is introduced at
           the sample probe.

           (A)  Gas calibrate the candidate instrument per the manufacturer's
                instructions.

           (B)  Using a solenoid valve or equivalent selector system, remotely
                introduce an 80% full scale gas to the probe.  The gas pressure
                at the entrance to the probe shall be equal to room ambient.

           (C)  Measure the elapsed time required for the instrument display to
                read 90% and 95% of the final stabilized reading for HC, CO, 
                C0(2) and NO. (Optional: Also, measure the time required for 
                the 0(2) analyzer to read 0.1% 0(2)).  Alternatively the bench 
                outputs may be recorded against a time base to determine the 
                response time. Record all times in seconds.

           (D)  Switch the solenoid valve to purge with zero air for at least 40
                seconds but no more than 60 seconds.

           (E)  Measure the elapsed time required for the NO instrument display
                to read 10% of the stabilized reading in Step C.

           (F)  Repeat steps A, B, and C, two more times (total three times).

           (G)  ACCEPTANCE CRITERIA: The response (drop time for 0(2) and NO; 
                rise time for HC, CO, C0(2) and NO) times shall meet the 
                requirement specified in Section 85.3(c)(2)(x).  The response 
                time shall also be within PLUS OR MINUS 1 second of the nominal
                response time supplied by the equipment supplier for use in 
                Section 85.5(b)(5).

     (iv)  ANALYZER INTERFERENCE EFFECTS.  The following acceptance test
           procedure shall be performed at 45 DEG. F, 75 DEG. F, and 
           105 DEG. F conditions, except as noted.

           (A)  Zero and span the instrument.

           (B)  Sample the following gases for at least one minute.  Record the
                response of each channel to the presence of these gases.

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               1.   16% Carbon Dioxide in Nitrogen.

               2.   1600 ppm Hexane in Nitrogen.

               3.   10% Carbon Monoxide in Nitrogen.

               4.   3000 ppm Nitric Oxide in Nitrogen.

               5.   75 ppm Sulfur Dioxide (SO(2)) in Nitrogen.

               6.   75 ppm Hydrogen Sulfide (H(2)S) in Nitrogen.

          (C)  WATER-SATURATED HOT AIR.  Water-saturated hot air shall be drawn
               through the probe from the top of a sealed vessel partially 
               filled with water through which ambient air will be bubbled.  The
               water shall be maintained at a temperature of 122 DEG. F PLUS 
               OR MINUS 9 DEG. F. This test shall be performed at only the 
               75 DEG. F, and 105 DEG. F conditions.

          (D)  ACCEPTANCE CRITERIA: The interference effects shall not exceed 
               the limits specified in Section 85.3(c)(2)(iii).

     (v)  ELECTROMAGNETIC ISOLATION AND INTERFERENCE.  This test shall measure 
          the ability of the candidate instrument to withstand electromagnetic 
          fields which could exist in vehicle testing and repair facilities.  
          For all tests described below, sample "Low-Middle Range Audit Gas" 
          specified in Section 85.4(d)(3)(iii)(C), at atmospheric pressure, 
          through the sample probe.  Record analyzer reading during test 
          periods.

          (A)  RADIO FREQUENCY INTERFERENCE TEST.

               1.   Use a test vehicle with an engine having a high energy 
                    ignition system (or equivalent), a solid core coil wire 
                    and a 3/8" air gap. Leave engine off.

               2.   Locate the candidate instrument within 5 feet of the 
                    ignition coil.  Gas calibrate the candidate instrument.

               3.   Sample gas specified above.  Wait 20 seconds, and record 
                    analyzer readings.

               4.   Start engine.  With the hood open and gas flowing to the 
                    analyzer, cycle the engine from idle through 25 mph on the
                    dynamometer at ASM loads and record the analyzer readings.

               5.   Relocate the instrument to within 6 inches of one side of 
                    the vehicle near the engine compartment.  Follow procedure
                    described in step 4 and record analyzer readings.

               6.   Relocate the instrument to within 6 inches of the other side
                    of the vehicle near the engine compartment.  Follow 
                    procedure described in step 4 and record analyzer readings.

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<PAGE>

         7.   ACCEPTANCE CRITERIA: The analyzer readings shall deviate no more
              than 0.5% full scale.

    (B)  INDUCTION FIELD TEST.  Use a variable speed (commutator type) hand 
         drill having a plastic housing and rated at 3 amps or more.  While 
         the analyzer is sampling the gas, vary the drill speed from zero to 
         maximum while moving from the front to the sides of the instrument 
         at various heights.

         ACCEPTANCE CRITERIA: The analyzer readings shall deviate no more
         than 0.5% full scale.

    (C)  LINE INTERFERENCE TEST.  Plug the drill used in part B above into 
         one outlet of a #16-3 wire extension cord approximately 20 feet 
         long. Connect the instrument into the other outlet of the extension 
         cord.  Repeat part B above.

         ACCEPTANCE CRITERIA: The analyzer readings shall deviate no more
         than 0.5% full scale.

    (D)  VHF BAND FREQUENCY INTERFERENCE TEST.  Locate both a citizens ban 
         radio (CB), with output equivalent to FCC legal maximum, and a 
         highway patrol transmitter (or equivalent) within 50 feet of the 
         instrument.  While the analyzer is sampling the gas, press and 
         release transmit button of the both radios several times.

         ACCEPTANCE CRITERIA: The analyzer readings shall deviate no more
         than 0.5% full scale.

    (E)  AMBIENT CONDITIONS INSTRUMENTS.  Upon installation and every six 
         months thereafter, the performance of the ambient conditions 
         instruments shall be cross checked against a master weather station.

         ACCEPTANCE CRITERIA: The individual instruments shall be within
         the tolerance specified in Section 85.3(c)(4).



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<PAGE>

Section 85.5   TEST RECORD INFORMATION

         The following information shall be collected for each test
         performed (both passing and failing tests), recorded in electronic
         form, and made available to EPA upon request.

    (a)  GENERAL INFORMATION.

         (1)  Test Record Number
         (2)  Inspection station and inspector numbers
         (3)  Test system number
         (4)  Dynamometer site
         (5)  Date of test
         (6)  Emission test start time and the time final emission scores are
              determined.
         (7)  Vehicle identification number
         (8)  License plate number
         (9)  Test certificate number
         (10) Vehicle model year, make, and type
         (11) Number of cylinders or engine displacement
         (12) Transmission type
         (13) Odometer reading
         (14) Type of test performed (i.e., initial test, first retest, or
              subsequent retest)

    (b)  AMBIENT TEST CONDITIONS.

         (1)  Relative humidity (%)
         (2)  Dry-bulb temperature (-F)
         (3)  Atmospheric pressure (mm Hg)
         (4)  NO correction factor
         (5)  Nominal response time for each instrument (Transport + T90)

    (c)  ASM MODE OR MODES.  The following information shall be captured
         separately for each test mode (ASM5015 and/or ASM2525) performed.

         (1)  Final HC running average (AvgHC) (ppm)
         (2)  Final CO running average (AvgCO) (%)
         (3)  Final NO running average (AvgNO) (ppm)
         (4)  Total horsepower used to set the dynamometer (THP5015) (hp)
         (5)  Engine RPM running average corresponding to the final test score
         (6)  Dilution correction factor (DCF)

    (d)  DIAGNOSTIC/QUALITY ASSURANCE INFORMATION.

         (1)  Test time (seconds)
         (2)  Mode time (seconds)
         (3)  Vehicle speed (mph) for each second of the test
         (4)  Engine RPM for each second of the test
         (5)  Dynamometer load (pounds) for each second of the test
         (6)  HC concentration (ppm) for each second of the test, not corrected
              for dilution
         (7)  CO concentration (%) for each second of the test, not corrected 
              for dilution
         (8)  NO concentration (ppm) corrected for humidity for each second of
              the test, not corrected for dilution


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         (9)  C0(2) concentration (%) for each second of the test
                
         (10) 0(2) concentration (%) for each second of the test (optional)
               







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                                   EXHIBIT B

                ASM 2525 AND QUICK TEST EQUIPMENT REQUIREMENTS

The Contractor shall comply with the equipment requirements of this Section.  
Computerized test systems are required for performing measurements on subject 
vehicles.  These computerized test systems shall conform to the performance 
features and functional characteristics of ASM 2525.

The Contractor shall install equipment in each station to implement the 
required inspection network.  All equipment shall be maintained according to 
good engineering practices to assure test accuracy.  "System" means the 
entire inspection network including, without limitation, program hardware, 
software, and equipment.  The System shall be designed in a manner to allow 
each inspection station to operate asynchronously and independently from each 
of the other stations (e.g. if a station was closed for any reason, other 
stations could continue testing operations).

      A.    Functional Requirements

            The System shall measure unburned hydrocarbons (HC), nitric oxide
            (NO) and carbon monoxide (CO) exhaust emissions from gasoline
            powered light-duty and medium-duty vehicles, and perform gas cap
            pressure tests and tamper inspections.  The System shall control
            the operation and data collection of all tests conducted.  The
            System shall generate printed vehicle inspection reports (VIRs)
            which shall serve as certificates of compliance, noncompliance,
            waiver, rejection, or permanent exemption for vehicles requiring
            inspection.

            1.    A method shall be provided for automatically printing
                  inspection reports and certificates of compliance.
                  Inspection information shall be printed legibly onto 
                  pre-printed inspection certificates.  The Contractor shall
                  provide the preprinted inspection certificates used in the
                  program for OEPA's approval.

            2.    The State shall allow the Contractor access to the OBMV
                  registration data file for vehicle license plate numbers,
                  vehicle identification numbers, vehicle model years,
                  certificate identification numbers and certificate dates,
                  using State created tapes formatted pursuant to the
                  OEPA/Envirotest/MARTA Compatibility Specification.  This
                  access shall allow the Contractor to input certain
                  inspection information in the data file provided by the
                  OBMV.  The Cost for creating tapes is to be borne by the
                  Contractor.

            3.    The Contractor shall provide a method to allow the System
                  to test vehicles asynchronously.  Entry of the vehicle
                  identification data subsequent to testing shall allow for
                  automated compliance determinations, storage of data and
                  printing of test reports.

                  As vehicle identification data are entered into the System,
                  information shall


                                       16

<PAGE>

                  be limit-checked to minimize operator errors.  If data are
                  rejected as a result of a limit-check, a message shall be 
                  displayed prompting the inspector to correct the error.  
                  Vehicle testing data processing shall proceed independently 
                  in all lanes.

                  Each lane in the Contractor's network shall be equipped with a
                  bar code reader.  The bar code reader shall be used for
                  scanning number bar codes on dashboards when the codes are
                  produced on vehicles.

            4.    The System shall have the capability to accept commands to
                  terminate testing of a vehicle and purge the exhaust gas
                  sampling system.  The commands will dictate whether the
                  vehicle is to be retested or excluded from further testing.
                  If the vehicle is to be retested, the test sequence will be
                  repeated.  If the vehicle is to be excluded from further
                  testing, an inspection report shall not be generated.  Data
                  for an aborted test shall be documented in the bulk storage
                  medium.

            5.    The System shall assure that emission measurements are valid.
                  The means of assuring validity shall be determined, including
                  the sample rates, stabilization checks, and software
                  smoothing techniques.  Software changes may be required to
                  include additional standards in the System.

            6.    The System shall provide for manual and automatic gas analyzer
                  span and zero drift checking and correction pursuant to the
                  U.S. EPA ASM document.  The method of correcting data for span
                  and zero drift shall be subject to the approval of OEPA.

            7.    The analyzer shall perform an automatic zero, an ambient air
                  reading, and an HC hang-up check prior to each test.  This
                  process shall occur within two minutes of the start of the
                  test.

            8.    The System shall provide for manual and automatic sample
                  system back-purging and water removal unit draining.
                  Automatic back-purging and water removal unit draining shall
                  be conducted prior to each test.

            9.    The System shall provide for automatic sample system HC/CO/NO
                  hang-up checking.  Automatic HC/CO/NO hang-up checks shall be
                  conducted prior to each test.  If the HC/CO/NO levels present
                  in the ambient air exceed 15 parts per million (ppm) HC or
                  0.02% CO, and 25 ppm NO; and the residual HC in the sampling
                  system (probe sample - ambient air reading) exceeds 7 ppm HC,
                  the System shall prevent further testing and return to the
                  automatic back-purging mode.  The System shall automatically
                  alternate between the back-purge mode and the HC/CO/NO hang-up
                  check mode until the measured levels of HC/CO/NO hang-up are
                  below the allowable limits pursuant to the U.S. EPA ASM
                  document.


                                       17

<PAGE>

            10.   The System shall provide for automatic sample flow
                  monitoring.  The System shall prevent testing if sample
                  flow drops below a point that adversely affects the
                  HC/CO/NO measurements.  The sampling system shall be
                  equipped with a flow meter (or equivalent) that shall
                  indicate sample flow degradation when meter error exceeds
                  three percent (3%) of full scale, or causes system
                  response time to exceed thirteen (13) seconds to ninety
                  percent (90%) of a step change in input, whichever is
                  less.

      B.    Equipment Specifications

            Where the specification calls for specific assemblies or 
            subsystems, the intent is to define a performance standard for 
            the System.  The Contractor may arrange the equipment physically 
            in any reasonable manner so long as the alternative is 
            functionally equivalent to that described herein.  The Contractor 
            shall demonstrate that the performance standards have been met if 
            an alternative configuration is proposed.  The Contractor shall 
            incorporate calibrations, adjustments, and quality control 
            standards into the System pursuant to the U.S. EPA ASM document.

            1.    Sample Conditioner

                  The equipment to be provided as part of the sample
                  conditioning unit includes the following:

                  a.  Exhaust gas sample probe assemblies with flexible
                      sample lines;

                  b.  Coalescent filter for water removal;

                  c.  Solenoid valves and fittings as required;

                  d.  Particulate filters; and

                  e.  Input ports and plumbing to accept externally supplied
                      calibration gases.

                  Vehicle exhaust gas shall be sampled using a probe with a
                  thermally insulated grip and a sample line consisting of
                  non-contaminating material suitable for heavy-duty service.
                  Insulation shall be such that the temperature of the
                  handgrip does not exceed 120 degrees Fahrenheit during
                  normal use.  The System shall simultaneously sample exhaust
                  gases from all vehicle exhaust pipes.

                  The System shall include an automated method of checking
                  for exhaust sample dilution.  This method shall include the
                  use of additional gas analysis equipment such as C0(2)
                  analyzers.

                  The probe design shall be such that it will not slip out of
                  the vehicle tailpipe


                                       18

<PAGE>

                  when in use.  The probe shall be flexible enough to extend
                  into a curved tailpipe at least ten (10) inches.  A tight
                  fitting tailpipe extension device may be employed to prohibit
                  sample dilution.  The sample line shall be oil-resistant and
                  of such composition that molecular hydrocarbon hang-up will
                  be minimized.  The sample line length shall be at least
                  twenty (20) feet in length.  The line shall be able to
                  withstand distortion and return to its original shape when a
                  vehicle loaded to twenty thousand (20,000) pounds per axle is
                  driven over it.

                  A coalescent filter shall remove water from the exhaust gas
                  sample of the vehicle prior to gas analysis.

      2.    Exhaust Gas Analyzers

            a.    Each permanent gas analyzer assembly for testing 
                  gasoline-fueled vehicle shall include the following:

                  *NDIR CO Analyzer(s)
                  *NDIR C0(2) Analyzer(s)
                  *NDIR HC Analyzer(s)
                  *NDIR NO Analyzer(s)

            b.    All exhaust gas analyzers shall meet the performance
                  standards established by the California Bureau of
                  Automotive Repair (BAR) 97 certified emissions analyzers.
                  Instruments supplied pursuant to this specification, or
                  the major components thereof, shall be approved by OEPA in
                  accordance with approved Acceptance Test Procedures in the
                  technical specifications for the ASM 2525 and Quick Test
                  referenced in Paragraph 3.B. and Exhibit B at paragraph E.

      3.    Flow Controller

            The flow controller shall regulate ambient air, exhaust sample,
            span gas, and calibration gas.  The sampling system shall be
            equipped with a warning that alerts the operator when the sample
            flow is not within operating requirements.  The test shall not
            proceed until the sample flow is brought within operating
            requirements.


                                       19



<PAGE>

      4.    Standard Gas Unit

            The standard gas unit shall include all gas bottles, regulators,
            stainless steel plumbing, gas cart, fittings and manifolds
            necessary to provide gases for automated zeroing and spanning of
            gas analyzers and periodic calibration checks.

            The Contractor shall be required to obtain gases blended and
            analyzed to an accuracy of plus or minus one percent (+/- 1%)
            traceable to the National Bureau of Standards (NBS), Standard
            Reference Materials (SRM's) for calibration purposes from a vendor
            which has California BAR certification.  Sufficient calibration
            gases shall be available to perform periodic multi-point
            calibration checks for each range used on each analyzer.

      5.    Chassis Dynamometer

            Each inspection lane shall be equipped with a chassis 
            dynamometer. The Contractor shall use the currently installed 
            dynamometers. The chassis dynamometer shall provide rolls to 
            support the drive wheels of front or rear-wheel-drive vehicles 
            and permit their continuous rotation.  The power generated by the 
            vehicle engine and delivered to the rolls through the tire treads 
            shall be transmitted to a power absorption device.  The load may 
            be established by the physical design characteristics of the 
            absorber or by automatic control.

            The frame and roll assemblies shall be mounted at floor level in 
            a manner to permit all vehicles to be driven over the rolls to 
            the test position, be tested in a level attitude, and be driven 
            off after the test.  A between-rolls platform and roll brakes 
            shall enable easy movement of the vehicles on and off of the 
            dynamometer.

            The steady state loaded mode chassis dynamometer shall meet the
            following specifications:

            a.     Power absorption: The dynamometer shall be capable of 
                   applying a load to the vehicle's driving tire surfaces at 
                   the horsepower (HP) and speeds specified in the U.S. EPA 
                   ASM document;

            b.     Repeatability of power absorption at a constant speed for 
                   any one weight class and cruise level shall be within two 
                   percent (2%) of the measured value;

            c.     Power absorption at constant speed shall not drift more
                   than 0.5 HP during any single test mode;

            d.     The dynamometer shall be capable of supporting a drive
                   over axle


                                   20

<PAGE>


                   weight up to and including ten thousand (10,000) pounds;

            e.     Roll wheel lifts shall be controllable and capable of
                   lifting individual axle loads of six thousand (6,000)
                   pounds;

            f.     Both roll brakes shall be locked when the wheel lift is
                   up;

            g.     Electrical output signals shall provide a digital
                   presentation of dynamometer speed;

            h.     Each roll shall have a diameter of not less than eight (8) 
                   inches.  The rolls shall be spaced so that a tire whose 
                   radius is thirteen (13) inches shall contact the rolls 
                   with an included angle from the wheel center to the roll 
                   centers of not less than fifty-eight (58) and not more 
                   than sixty-three (63) degrees.  The rolls shall provide a 
                   contact surface not less than ninety-six (96) inches wide. 
                   If the rolls are divided, the inner-end to inner-end 
                   dimension shall not be more than thirty (30) inches;

            i.     Speed meters or their functional equivalent shall be 
                   provided in the digital Test Display Unit having single 
                   scale lengths of not less than seven and five-tenths (7.5) 
                   inches and shall indicate zero (0) to sixty (60) miles per 
                   hour;

            j.     Provisions shall be included in the instrumentation system 
                   to calibrate the dynamometer for speed.  The calibration 
                   unit shall consist of all devices and accessories 
                   necessary to perform periodic calibration and adjustment 
                   of the dynamometer to specifications;

            k.     A roll speed sensor and safety interlock circuit shall be 
                   provided which prevents the application of the roll brakes 
                   and upward lift movement at any roll speeds above one-half 
                   (1/2) miles per hour; and

            l.     The dynamometer system shall be air-cooled.

      6.    Diesel Opacity Meter

            The diesel opacity meter shall read the equivalent opacity value 
            of neutral density gelatin filters within a plus or minus two 
            percent (2%) opacity at 20% opacity.  The opacity meters shall be 
            checked for accuracy using a neutral density gelatin filter and 
            shall pass an Opacity 3-point Span Check weekly, said check to 
            take place any time prior to or during the day in which the last 
            valid passing check expires.  The System shall prevent by means 
            of automatic lockout any test initiated if the above 3-point 
            requirement has not been met.  Additionally, the meter shall be 
            checked using an Opacity 2-point Span Check immediately prior to 
            performance of a valid diesel opacity inspection, said check to 
            be comprised of instrument zero and 100% spans.


                                   21

<PAGE>


                   13.    Each lane shall have a bar code scanner capable of 
                          reading bar code vehicle identification numbers 
                          through a windshield. The scanner shall be directional
                          scanning that is retro-collective.

                   14.    Tachometer- The tachometer for the high idle/2500 rpm 
                          test for dedicated four-wheel drive vehicles shall be 
                          either a type placed on the hood of the car or an 
                          induction pickup type.  Accuracy shall be + or - 3% at
                          2500 rpm.  The tachometer display shall be digital and
                          easily readable at a distance of 20 feet.

      C.    General System Design Requirements

            The System shall be designed and constructed so as to comply with
            current OSHA regulations.

            1.     Equipment shall be designed for easy access to all 
                   components contained within enclosures.  Slide-out or 
                   hinged mountings with quick-disconnect connectors and 
                   handles for extraction shall be employed where enclosures 
                   would otherwise prevent access to equipment.

            2.     Mechanical and electrical interchangeability shall exist
                   between like and/or compatible assemblies, components, and
                   their replacement parts.

            3.     Electronic enclosures shall provide dust-protective
                   housings.  National Electrical Manufacturer's Association
                   standards for enclosures shall apply.

            4.     The National Electrical Code shall govern all electrical 
                   installation of equipment and electrical distribution 
                   systems.  This requirement shall not relieve the 
                   Contractor of the responsibility for complying with the 
                   requirements of any applicable local electrical codes.

            5.     Performance of equipment shall be protected from 
                   degradation by the presence of interference signals which 
                   may be present at any facility.  It shall be the 
                   Contractor's responsibility to determine the degree of 
                   interference control required at each site.  Equipment 
                   shall be prevented from generating interference signals 
                   which affect proper operation of any equipment.  It shall 
                   be the responsibility of the Contractor to design and 
                   operate the System to meet the United States Government 
                   standards for radio frequency interference and 
                   electromagnetic radiation as set forth in Federal 
                   Communication Commission and Federal Aviation Authority 
                   rules and regulations.

            6.     System cables used in the test lane shall be designed of 
                   material resistant to gasoline, oil, water, and engine 
                   exhaust.  System cables shall be of heavy construction to 
                   resist abuse.  Bundled cables shall be protected from 
                   abrasion and fraying or dislocation of individual
                   conductors.  The environment


                                  23

<PAGE>

                   of the inspection facility core shall be conditioned to 
                   accommodate the operating requirements of all equipment 
                   installed therein.

            7.     Equipment in the inspection lanes shall be capable of 
                   operating as specified within an ambient (outside air) 
                   temperature range of zero (0) degrees Fahrenheit to one 
                   hundred ten (110) degrees Fahrenheit and shall be capable 
                   of operating as specified when exposed to a relative 
                   humidity of zero (0) to eighty-five (85) percent 
                   (non-condensing) for both continuous and intermittent 
                   periods.

      D.    Quality Assurance and Control Requirements

            The requirements in this Section describe the methods that shall 
            be used to ensure a high quality System.  The Contractor shall 
            establish and maintain a quality assurance program to ensure 
            compliance with the requirements of the Contract that shall 
            conform to the requirements of the U.S. EPA ASM document.

            All phases of the work, manufactured or performed within the 
            Contractors plant or at any other source, shall be controlled at 
            all points necessary to assure conformance to the Contract.  The 
            program shall provide for prevention and detection of 
            discrepancies and for prompt corrective action.  The Contractor 
            shall make evidence of quality conformance available to the OEPA.

            The Contractor agrees to implement quality control procedures 
            which comply with the U.S. EPA ASM document.  All quality 
            control checks shall be identified by station number, lane 
            number, and date.  In addition, data reports shall contain the 
            concentration values of the calibration gases used to perform the 
            gas characterization portion of the quality control checks. 
            Contractor shall supply OEPA with necessary hardware and 
            calibration gases to be used in quality control audits.

            The Contractor's quality control procedures shall insure that 
            emission measurement equipment is calibrated and maintained 
            properly, and that inspection, calibration records and control 
            charts are accurately created, recorded, and maintained. 
            Computerized analyzers shall automatically record all recordable 
            quality control check information.

      E.    System Acceptance Test Procedures

            There shall be two (2) Acceptance Test Procedures (ATPs) 
            performed.  ATP-Hardware shall govern the new system hardware, 
            the BAR97 analyzer for use with the "Quick Test" and subsequent 
            ASM 2525 testing.  ATP-Software shall govern the new ASM 2525 
            testing software.

      F.    Maintenance

            In order to minimize error due to calibration drift or equipment
            failure, the Contractor


                                    24

<PAGE>


            shall conduct an effective preventive maintenance and quality 
            control program.  Scheduled preventative maintenance, necessary 
            to insure accurate and repeatable operation, shall be performed 
            on all inspection equipment, on a periodic basis, by the 
            Contractor outside the normal station/lane operational hours or 
            during normal operating hours on a lane that is not in use for 
            emission testing.  Records of maintenance and calibration shall 
            be maintained and available for OEPA review. The program shall 
            include, but not be limited to the following:

            1.     Daily calibration checks;

            2.     Periodic recalibrations;

            3.     Periodic cleaning and maintenance of all equipment
                   according to manufacturer's specifications; and

            4.     Daily visual inspection of equipment.

      G.    System Calibration Surveillance

            OEPA shall conduct a program of surveillance to verify that the 
            Contractor is performing emission tests using properly calibrated 
            and correctly functioning equipment.  In order to facilitate this 
            surveillance, the cooperation of the Contractor is required.  A 
            Maintenance and Systems Surveillance Plan which provides the 
            surveillance obligations set forth in this Change Order shall be 
            provided to the OEPA.

            1.     Any station shall be available at any time for a check of
                   the calibration and proper operation of all equipment.

            2.     Any documentation or equipment necessary to perform
                   calibration checks shall be available at each station.

            3.     Access shall be provided during nonworking hours to
                   perform any required checks which OEPA does not wish to
                   perform during normal work hours.

            4.     Any defective condition which could adversely affect the
                   accuracy of tests performed shall be corrected
                   immediately.

            5.     If so ordered by an OEPA representative, any test lane
                   affected by a condition that would adversely affect the
                   accuracy of inspections in the lane shall be closed.  No
                   further testing shall be conducted until evidence that the
                   defective condition has been corrected has been submitted
                   by the Contractor and has been approved by OEPA.


                               25


<PAGE>


                                   EXHIBIT C

                ASM 2525 AND QUICK TEST INSPECTION PROCEDURES


The Contractor shall comply with the inspection procedures in this Section.  
Inspection procedures described in the U.S. EPA ASM document shall take 
precedence except as specified in this Contract.

The Contractor shall inspect subject vehicles presented for testing during a 
station's operating hours.

A.   Pre-Emissions Visual Safety Compliance Check

     Each vehicle shall be visually inspected prior to the emissions 
     inspection for the following unsafe conditions:

     1.   Any fuel leaks in or around engine, fuel tank or lines causing 
          wetness or pooling of fuel;

     2.   Any continuous leaking of engine oil or transmission fluid onto the 
          floor;

     3.   Any continuous leaking of engine coolant onto the floor or an 
          illuminated engine temperature light;

     4.   Under inflated tires or tires in an unsafe condition (i.e. no tread, 
          visible steel belts, retreads coming off, etc.). Space-saver emergency
          spare tires are not acceptable. Vehicle drive wheel tires shall be 
          visually checked for tire pressure and inflated to approximately 30 
          pounds when they appear low;

     5.   Other unsafe conditions such as loud internal engine noises, obvious 
          exhaust leaks, or a missing tailpipe;

     6.   A missing gas cap; and

     7.   Altered or inaccessible exhaust system, other than systems than 
          conform to original equipment manufacturer specifications which 
          interferes with the operation of moving equipment or which cannot be 
          accessed on one knee with one arm's length.

      Any vehicle found to be in an unsafe condition may be rejected without an
      emission inspection.  A vehicle rejection report indicating why the 
      vehicle was rejected shall be provided to the motorist.  The vehicle 
      shall be repaired to alleviate the unsafe condition prior to an emission 
      inspection.  The Contractor shall be responsible for the design, printing
      and supplying of the vehicle rejection report approved by OEPA.


                                       27

<PAGE>

      An owner shall pay the inspection fee for each initial inspection 
      conducted on the owner's motor vehicle.  An owner shall not pay the 
      reinspection fee for a first reinspection conducted on the owner's motor 
      vehicle.  An owner shall not pay the reinspection fee for a first 
      reinspection conducted on the owner's motor vehicle, if a reinspection 
      is required.  An owner shall pay the inspection fee for a first 
      reinspection only if the inspection fee was not collected during the 
      vehicle's initial inspection.  An owner shall pay the reinspection fee 
      for the second and each subsequent reinspection conducted on the owner's 
      motor vehicle, if required, during each inspection period.

B.    Test Vehicle Classes

      Vehicles shall be tested in as-received condition.  The engine shall be 
      at normal operating temperature with all accessories turned off based on 
      a visual observation of overheating.  The Contractor shall address unique 
      characteristics of certain vehicle makes and models, and adjust the 
      inspection procedure accordingly.

      When a vehicle enters a testing station, the Contractor shall access the 
      data file to screen for inspections within the three hundred sixty five 
      (365) days prior to the vehicle owner's registration deadline.

      The screening is to prevent vehicle owners from receiving multiple initial
      inspections to avoid repairs.  Legitimate retests, exemption inspections,
      or tests subsequent to the motorist's registration renewal deadline do not
      constitute multiple initial inspections for purposes of this provision.

      OEPA intends motorists to use the inspection certificate for one 
      registration cycle only.  The certificate shall be transferable
      and viable when a vehicle is sold.  The certificate shall not be
      used by the same owner for a subsequent year's re-registration of
      that vehicle.

      All twenty-five (25) years old and newer gasoline vehicles being
      retested shall be inspected in accordance with the procedures and
      Pass/Fail criteria as specified herein.  If the vehicle passes the
      tampering portion of the initial inspection, that portion need not
      be repeated.  Inspection fees shall be collected from the motorist
      by the Contractor and deposited into the Contractor's business
      account.

      Three (3) classes of vehicles and the corresponding emissions
      inspection procedures are outlined within this Contract.  The
      classes are as follows:

      1.    Gasoline fueled vehicles twenty-five (25) years old and
            newer having a ten thousand (10,000) pounds gross vehicle
            weight rating (GVWR) or less; and

      2.    Diesel fueled vehicles twenty-five (25) years old and
            newer having a ten thousand (10,000) pounds GVWR or
            less.


                                       28

<PAGE>

      3.    Dedicated four-wheel drive vehicles twenty-five (25) years
            old and newer having a ten thousand (10,000) pounds GVWR
            or less.

C.    Tampering Test Procedure

      The initial test shall be a tampering inspection which shall apply
      to all gasoline fueled vehicles twenty-five (25) years old and
      newer.  The test shall consist of checks for the following items
      (if applicable to that specific model year and engine
      configuration):

      1.    Presence of a properly installed catalytic converter(s);
            and

      2.    Presence of a seal in the gas cap;

      An engine-switched vehicle shall be tested in the same manner
      as other vehicles.  An engine-switched vehicle shall meet the
      emission standards of the chassis model year provided in the
      vehicle registration.  For the tampering inspection, such
      vehicle shall match a light-duty certified configuration of
      the chassis model year or of a newer vehicle if it originally
      had been a light-duty configuration (heavy-duty vehicle shall
      match heavy-duty configuration).  The Contractor shall be
      responsible for verifying the proper configuration of an
      engine switch.  The Contractor's station manager or assistant
      manager shall verify these configurations.

      Vehicles that have been switched from an engine of one fuel
      type to an engine of another fuel type that are subject to
      testing (e.g. from a diesel engine to a gasoline engine) shall
      be subject to the test procedures and standards for the
      current fuel type and the requirements of the preceding
      paragraph.

      Except as provided in the preceding two paragraphs,
      application of a tampering test to each vehicle shall be
      performed on the basis of the vehicle's original emission
      control system configuration at the time of manufacture.  The
      applicable emission system requirements can be verified by the
      Vehicle Emission Control Information (VECI) label under the
      hood or by using emission control resources such as:

      -   Emission Control Systems application (Cascade
          Automotive Resources)
      -   Emission Control Application Tables (Mitchell
          Manuals) 
      -   Automotive Emission Systems (Colorado State
          University)

      If a conflict exists between the VECI label and one of the
      above-mentioned resources, the VECI label shall take
      precedence.  The Contractor shall be responsible for obtaining
      the aforementioned resources and subsequent updates.

      If the vehicle fails the tampering inspection, the ASM 2525 or
      the Quick Test shall not be conducted.  The costs associated
      with tampering repairs shall not apply


                                       29

<PAGE>

      towards a waiver.

      A pre-test rejection report stating the reasons that the test
      was not conducted shall be given to the motorist.

      An inspection report with the reasons for failing the test
      shall be given to the motorist.

      The anti-tampering test shall be conducted prior to the ASM
      2525 and Quick Tests.

D.    Steady-State, Loaded Mode "Quick Test"

     1. General requirements.

        a.  Exhaust gas-sampling algorithm.

            The analysis of exhaust gas concentrations shall begin ten (10) 
            seconds after the applicable test mode begins. Exhaust gas 
            concentrations shall be analyzed at a minimum rate of two (2) 
            times per second.  The measured value for pass/fail determinations 
            shall be a simple running average of the measurements taken over 
            ten seconds.

        b.  Pass/fail determination.

            A pass/fail determination shall be made for each applicable test 
            mode based on a comparison of the Quick Test standards.  A vehicle
            shall pass the test mode if any pair of simultaneous values for HC
            and CO are below or equal to the applicable Quick Test standards. A
            vehicle shall fail the test mode if the values for either HC or CO,
            or both, in all simultaneous pairs of values are above the 
            applicable standards.  These standards are subject to change by OEPA
            and the Contractor shall adjust its software accordingly.  The 
            Contractor shall maintain instrumentation accuracy requirements at 
            all times.

        c.  Void test conditions.

            The test shall immediately end and any exhaust gas measurements 
            shall be voided if the measured concentrations of CO + C0(2) fall 
            below six (6) percent or the vehicle's engine stalls at any time 
            during the test sequence. (If U.S. EPA has approved an auto
            manufacturer's request for less than percent, an override of this 
            requirement is acceptable).

        d.  Multiple exhaust pipes

            Exhaust gas concentrations from vehicle engines equipped with


                                       30


<PAGE>

                multiple exhaust pipes shall be sampled simultaneously.

            e.  The test shall be immediately terminated upon reaching the
                overall maximum test time.

      2.    Test sequence - Quick Test

            a.  The test sequence shall consist of a steady state, loaded
                mode using a chassis dynamometer followed immediately by
                an idle mode as described in paragraphs (D)(4) and (5) of
                this Section for all vehicles (except dedicated four-wheel
                drive and diesel vehicles).  Dedicated four-wheel drive
                vehicles shall be tested using the two-speed idle test
                described in 40 C.F.R., Part 51, Appendix B to Subpart S, II.
                Diesel vehicles shall be tested as described in paragraph G.

            b.  The test sequence shall begin only after the following
                requirements are met:

                The dynamometer shall be in stabilized operating condition,
                adjusted, and calibrated in accordance with the procedures
                described in 40 C.F.R., Part 51, Appendix A to Subpart S.

            c.  The vehicle shall be operated during each mode of the test
                with the gear selector in the following position:

                -  In drive for automatic transmissions and in second (or
                   third if more appropriate) for manual transmissions for the
                   loaded mode; and

                -  In park or neutral for the idle mode.

            d.  The sample probe shall be inserted into the vehicle's
                tailpipe to a minimum depth of ten (10) inches.  If the
                vehicle's exhaust system prevents insertion to this
                depth, a tailpipe extension shall be used.

            e.  The measured concentration of CO plus CO(2) shall be
                greater than or equal to six percent, except as provided
                in (D)(1)(c).

            f.  The tachometer shall be utilized in accordance with the
                analyzer manufacturer's instructions.

      3.    Overall test procedure

            The test timer shall start (tt=O) when the conditions specified in
            paragraph (2)(b) of this Section are met and the mode timer
            initiates as specified in 


                                       31

<PAGE>

            paragraph (2)(c) of this Section.  The test sequence shall have 
            an overall maximum test time of two hundred forty (240) seconds 
            (tt=240).  The test shall be immediately terminated upon reaching 
            the overall maximum test time.

E.    Enhanced ASM 2525 Test Sequence

      1.    The Contractor shall perform ASM 2525 testing.  The ASM 2525 
            shall consist of up to two hundred forty (240) seconds of 
            emissions measurements using a BAR97 analyzer while the vehicle 
            is driven at twenty-five (25) plus or minus one (1) miles per 
            hour on a dynamometer.  The ASM 2525 testing shall be conducted 
            on all subject vehicles.  A gas cap pressure test and visual 
            tampering check shall be required for all vehicles receiving the 
            ASM 2525 test.

            The mode timer shall start (mt=O) when the dynamometer speed (and 
            corresponding power) are maintained within twenty-five (25) plus 
            or minus (+/-) one (1) miles per hour for five (5) continuous
            seconds.

            The dynamometer shall apply the correct torque at any testing 
            speed within the tolerance of twenty-five (25) plus or minus 
            (+/-) one (1) miles per hour (i.e., constant torque load over 
            speed range).  The torque tolerance shall be plus or minus five 
            percent of the correct torque at twenty-five (25) miles per hour.

      2.    The dynamometer power shall be set in accordance with the U.S. EPA
            ASM document.


                                       32

<PAGE>

      3.    The pass/fail analysis shall begin after an elapsed time of 
            twenty-five (25) seconds (mt=25). A pass or fail determination 
            shall be made for the vehicle and the mode shall be terminated as 
            follows:

            a.  The vehicle shall pass the ASM 2525 mode if, at any point 
            between an elapsed time of twenty-five (25) seconds (mt=25) and 
            90 seconds (mt=90), the ten (10) second running average measured 
            values for each pollutant are simultaneously less than or equal 
            to the applicable test standards described in the U.S. EPA ASM 
            document and/or as may be modified by OEPA as described below.

            b.  The vehicle shall fail the ASM 2525 mode and the mode shall 
            be terminated if the requirements of Section D.3.A are not 
            satisfied by an elapsed time of 90 seconds (mt=90).

      The emission standards for the ASM 2525 shall be the standards set 
      forth in the U.S. EPA ASM document. The "Start up" standards will be 
      employed for the first year of the program as stated except for the 
      tier one (1) standards which have been eliminated. OEPA shall have the 
      ability to set emission standards that will result in an overall 
      failure rate of no greater than 20% of vehicles tested in any twelve 
      (12) month period after implementation of the ASM 2525 test and every 
      twelve (12) month period thereafter.

      The Contractor's ASM 2525 test procedure includes a "Quick 
      Test"/algorithm that is approved by the U.S. EPA.

      The Dilution Correction Factor described in the U.S. EPA ASM document 
      is offered optionally due to its untested status and potential 
      conflicts with the repair industry's emissions measurement capabilities.

F.    Gas Cap Pressurization Test Procedures

      The Contractor shall perform a gas cap pressurization test as part of 
      emission tests performed on all vehicles that were manufactured or 
      required to have a sealing gas cap.

      1.    The test sequence shall consist of the following steps:

            a.    Test equipment shall be connected to the gas cap and the 
                  gas cap shall be tested for leaks.

            b.    The system shall be pressurized to twenty-eight (28) plus 
                  or minus (+/-) one (1) inches of water without exceeding 
                  twenty-nine (29)



                                       33

<PAGE>

                inches of water system pressure.

            c.  The pressure source shall be closed off and the pressure decay
                shall be monitored for up to thirty (30) seconds.

      2.    Vehicles shall fail the gas cap pressurization test if the system
            cannot maintain a delta of six (6) inches of water.  Vehicles that
            fail shall be required to return with a valid replacement gas cap.

      3.    The gas cap pressurization test results shall be automatically
            entered into the System.

G.    Diesel Opacity Inspection Procedure

      The Contractor shall perform diesel opacity inspections for applicable 
      diesel fueled vehicles.  The System shall measure opacity for 
      particulates in the exhaust of light-duty diesel fueled vehicles 
      twenty-five (25) years old and newer having ten thousand (10,000) 
      pounds GVWR or less.  The System shall control the operation and data 
      collection of all tests conducted.  The System shall generate printed 
      vehicle inspection reports (VIRs) which shall serve as certificates of 
      compliance, noncompliance, or waiver for vehicles requiring diesel 
      opacity inspection.

      1.    Light Duty Diesel Vehicle Opacity Test Procedure

            a.  The emissions inspection procedure shall be conducted as
                follows:

                (i)   Diesel vehicles shall be tested by means of a loaded 
                      dynamometer test applying a single load as determined 
                      by vehicle type and number of cylinders as specified in 
                      EPA-AA-RSPD-IM-96-2-Section 85.2-(d)-(2)-(ii).

            b.  The emissions pass/fail determination shall be made as follows:

                (i)   The opacity reading shall be taken over a period of ten 
                      (10) consecutive seconds with the engine under the 
                      applicable speed and loading specified in 
                      EPA-AA-RSPD-IM-96-2-Section 85.2(d)-(2)-(ii).

                (ii)  Any vehicle exceeding the appropriate standard shall 
                      fail the test.  Prior to reinspection, the vehicle 
                      shall have a low-emission tune up.

            c.  No diesel fueled vehicle shall have emissions in excess of 
                twenty percent (20%) visual opacity. Failed vehicles shall be 
                repaired to pass the test. Waiver limits shall be the same as 
                for


                                       34

<PAGE>

                  gasoline fueled vehicles.

                  d.    Exhaust sampling shall conform to the following:

                  (i)   Separate measurements shall be made on each exhaust 
                        outlet on diesel fueled vehicles equipped with 
                        multiple exhaust outlets.  For vehicles equipped with 
                        more than one (1) exhaust stack or pipe, the reading 
                        taken from the outlet giving the highest opacity 
                        reading shall be used for comparison with the 
                        appropriate standard.

                  (ii)  All diesel fueled vehicles shall be inspected with an 
                        opacity meter that is a full-flow, direct reading, 
                        continuous reading light extinction type using a 
                        collimated light source and photo-electric cell, 
                        accurate to a value within plus or minus five a plus 
                        or minus two percent (2%) opacity at 20% opacity.

H.    Post-Test Procedures

      1.    Passed Vehicles

            A vehicle that has passed the emission inspection shall
            receive a Vehicle Inspection Report and a Certificate of
            Compliance (both shall be on the same document).  The
            Contractor shall issue duplicate certificates upon request
            of a motorist.  The Contractor may charge a fee, not
            greater than one-fourth (1/4) of the inspection fee, for
            duplicate certificates.

      2.    Failed Vehicles

            A vehicle that fails the emission inspection shall be given a 
            Vehicle Inspection Report indicating failure (non-compliance) and 
            the necessary repair requirements and applicable waiver 
            requirements.

            The non-compliance certificates at OEPA's directions, shall also 
            contain a performance warranty statement.

I.    The Vehicle Inspection Report

      The current VIR form shall be used with only minor changes to the
      pre-printed information as approved by OEPA.  The print areas
      shall remain unchanged.

      1.    The following information shall be printed on the front
            of the VIR:

            a.    Certificate identification number

                                      35
<PAGE>

            b.    The date and time of the inspection

            c.    The vehicle identification number (VIN)

            d.    County of registration (For Official Use Only)

            e.    The vehicle make

            f.    The model year of the vehicle

            g.    The class of the vehicle (For Official Use Only)

            h.    Number of cylinders (For Official Use Only)

            i.    The fuel type (gasoline, diesel, or alternative fuel) (For
                  Official Use Only)

            j.    The odometer reading

            k.    The emissions standards for the vehicle model year

            l.    HC and CO readings for the Quick Test

            m.    HC, CO and NO readings for the ASM 2525 test

            n.    Separate pass/fail decisions for the gas cap pressure test 
                  for gasoline vehicles

            o.    Opacity standards and readings for diesel vehicles

            p.    The pass/fail code for the opacity test for diesel vehicles
                  (For Official Use Only)

            q.    The overall pass/fail decision

            r.    Tampering inspection results for gasoline vehicles

            s.    The inspection/reinspection indicator (For Official Use Only)

            t.    The type of certificate (compliance, noncompliance, waiver,
                  permanent exemption)

            u.    The inspector identification number (For Official Use Only)

            v.    The date of the initial inspection (For Official Use Only)

                                      36
<PAGE>

            w.    The initial HC, CO and NO (if applicable) readings
                  from a prior test shall be printed on any
                  reinspection report (For Official Use Only)

            x.    An emissions inspection certificate that can be
                  separated from the Vehicle Inspection Report and
                  which contains the following information if the
                  vehicle passes inspection: vehicle identification
                  number, model year, make, date, the certificate
                  identification number, date of certificate
                  expiration, and type of certificate.  If the vehicle
                  fails inspection, "NON-COMPLIANCE" shall be printed
                  continuously over the certificate

            y.    Certificate expiration date (365 days)

      2.    The back of the Vehicle Inspection Report (VIR) shall
            remain unchanged from its current design.

J.    Vehicle Repair Data

      The Contractor shall provide a method of recording and maintaining
      repair information in order to provide the required repair
      information reports in Exhibit D of this Contract.

K.    Waiver Procedure

      Vehicles shall be eligible for waivers from the emission 
      inspection requirements, as provided in Ohio Administrative Code
      Rule 3745-26-01 and Rule 3745-26-12 when proof is submitted that:

      1.    Appropriate repairs have been performed on the vehicle and
            the reinspection reached at least a thirty percent (30%)
            improvement over any initial fail reading (HC and/or CO)
            without any initial pass reading changing to exceed
            standards.  These repairs shall be visually verified and
            the station manager shall review the repair receipts;

      2.    The minimum expenditure made on emission repairs is one
            hundred-dollars ($100) for vehicles 1980 and older, and
            two hundred dollars ($200) for vehicles 1981 and newer.
            This expenditure minimum is identical for either basic or
            selected enhanced.  If an area is reclassified to serious
            ozone non-attainment, the waiver limit shall change to the
            federally required four hundred fifty dollar ($450) limit;
            and

      3.    The vehicle has received all repairs and adjustments for
            which it is eligible under any emission performance
            warranty or a written denial of warranty coverage from the
            manufacturer or authorized dealer.

                                      37
<PAGE>

      All expenditures must be documented and determined to be
      emission related repairs.  Motorists performing self-repair
      on pre-1980 model year vehicles shall be given expenditure
      credit on parts only.

      The Contractor shall use a stamp to mark all original repair
      receipts for waivers.  The stamp shall be used after the
      receipts have been accepted for the purpose of a waiver.

      Vehicle Inspection Reports that are processed for waived
      vehicles shall have the word "WAIVER" prominently printed in
      the pass/fail section.  The Contractor shall be responsible
      for explaining to motorists, whose vehicles fail the
      emissions test, that a waiver procedure is available.  The
      Contractor's station manager, assistant manager, or OEPA
      auditor shall make determinations of waiver eligibility.
      Inspectors shall not issue waivers.  Only centralized station
      managers or assistant managers shall have computer access to
      issue waivers.

      The waiver limit in a required enhanced area for 1981 and
      later vehicles shall be adjusted in January of each year by
      the percentage, if any, by which the Consumer Price Index for
      the preceding calendar year differs from the current Consumer
      Price Index.  OEPA shall notify Contractor three (3) months
      prior to such adjustment.

L.    Hardship Extension

      Low income motorists, as defined in O.A.C. Rule 3745-26-01
      (NN), may receive an extension which allows an additional six
      (6) months to have their vehicles repaired pursuant to O.A.C.
      Rule 3745-26-12(B)(7).  Vehicles failing only due to gas cap
      problems shall be excluded.  To receive a hardship extension,
      a motorist must mail to the OEPA, the inspection report from
      the Contractor's facility showing that the vehicle failed the
      test, a copy of the vehicle's current registration, an
      estimate totaling at least seventy-five dollars ($75.00) for
      emission related repairs and/or diagnostic costs and and the
      applicant must certify that his or her household income is
      below one hundred and fifty percent of the Federal poverty
      level.  Applications shall be available at every inspection
      station.

M.    Repair Spending Cap

      A motorist must demonstrate that he or she has spent an amount
      equal to or greater than the "repair spending cap", as defined at
      O.A.C. Rule 3745-26-01(MM), on emission-related repairs and
      diagnostic fees.  This amount shall not include the cost of
      repairing or replacing tampered emissions control equipment, and
      shall include only the cost of parts if the repairs are performed
      by the vehicle owner or lessee.

                                      38
<PAGE>

N.    Appeals

      Appeal forms shall be designed, printed, and distributed by the
      Contractor.  Appeals may be submitted by the vehicle owner to OEPA
      in cases where the inspection or waiver findings are in dispute.
      OEPA shall make the final inspection or waiver decision.  OEPA
      shall conduct the appeal inspection at the Contractor's site.

O.    Recall

      The Contractor shall implement any necessary changes to comply
      with vehicle recall requirements as mandated by U.S. EPA when the
      U.S. EPA central recall data base is established and available.

                                      39
<PAGE>



                                EXHIBIT D

     ASM 2525 AND QUICK TEST DATA ACQUISITION SPECIFICATIONS

The Data Acquisition Specifications shall serve as both the specifications in 
developing a reliable data acquisition system and as the documentation of the 
existing system after the start of the program.  Documentation shall be 
updated after each change to the system in the Ohio Data Specifications 
document.  Certain codes for data elements may be changed pursuant to the 
Ohio Data Specification document.  All data coding procedures, data 
manipulation programs and any edit procedure changes shall be approved by 
OEPA before implementation.  The Contractor shall develop a data acquisition 
system that shall allow for the input of data and generation of reports as 
detailed in this Exhibit.

OEPA has arranged for a direct computer tie-in between the OBMV registration 
database and the Contractor's computer system.  In response to this Contract, 
the Contractor shall cooperate with the OBMV and OEPA to establish database 
access, communications protocol and security.  The Contractor shall bear the 
cost of all hardware and software required to facilitate the tie-in between 
the systems.  Questions regarding the BMV database shall be directed to Chief 
of Data Systems and Programing, Department of Highway Safety, Bureau of Motor 
Vehicles, 4300 Kimberly Parkway, Columbus, Ohio 43227, (614) 752-7692.

The tie-in provides "read only" access to the vehicle registration 
information, except for an inspection certificate number field provided in 
the OBMV database.  For example, as a motorist drives into a testing lane, 
the technician shall enter the license plate number, and the system shall 
display the registration information and print it onto the inspection 
certificate.  The vehicle is then tested.  If the vehicle fails, a 
"non-compliance" certificate without a certificate identification number is 
printed.  If the vehicle passes, a "compliance" certificate with an 
identification number is printed.  The Contractor's computer automatically 
displays the assigned certificate identification number, described herein, 
into the field provided in the permanent OBMV registration database.

A.     Data Storage and Handling




                                    40
<PAGE>

     1.   All required data collected at the centralized emissions inspection 
          stations shall be compiled at the Contractor's headquarters.  The 
          centralized emission inspection stations shall be connected to the 
          host computer by a real-time data link in order to prevent 
          unauthorized multiple initial tests on the same vehicle in a test 
          cycle and to insure test record accuracy.  The data forwarded to 
          the host computer shall be placed on a suitable recording medium, 
          stored, and subsequently used to provide the OEPA with its required 
          reports.  The OEPA computer, described in Exhibit F, Section D, 
          shall be capable of accessing the reports required in Section D of 
          this Exhibit entitled "Inspection Data Analysis and Reports."

     2.   Reports shall be supplied to OEPA by March 30 of each year for the 
          preceding calendar year.

     3.   The Contractor shall keep inspection results in an active data file 
          for a minimum of twenty-four (24) months from each annual 
          inspection.  The Contractor shall have access to the data file to 
          screen for previous inspections within three hundred sixty-five 
          (365) days prior to the owner's registration deadline.

     4.   The Contractor shall retain all tapes or disks used to store the 
          emission inspection reports for a period of at least five (5) years 
          after the transfer of the reports to OEPA.  These tapes or disks 
          may be audited by OEPA and U.S. EPA at any time.

B.   Data Format: The data that shall be entered for each inspection are 
     listed below.  Any unused fields shall contain blanks, except as 
     otherwise defined herein.

     1.   Date of Inspection

          This eight (8) character numeric field shall consist of two (2) 
          sets of numbers with two (2) characters each and one (1) set of 
          numbers with four (4) characters (representing the year).  The 
          date of inspection shall be automatically input into the OBMV 
          registration database field as part of a unique computer generated 
          certificate identification number.

          a.   The first set shall represent the month of the test as follows:

<TABLE>
<CAPTION>
               Month                    Number in Set
               -----                    -------------
<S>                                     <C>
               January                        01
               February                       02
               March                          03
               April                          04
               May                            05
               June                           06
</TABLE>

                                       41
<PAGE>

<TABLE>
<S>                                     <C>
               July                           07
               August                         08
               September                      09
               October                        10
               November                       11
               December                       12
</TABLE>

          b.   The second set shall be the day of the month of the 
               inspection.  If the day is less than the tenth of the month, a 
               zero (0) shall be placed to the left and adjacent to the 
               number.

          c.   The last set shall contain all four (4) digits of the year of 
               the test.  For example, if a test was conducted on January 1, 
               1995, the number appearing in the date field shall be 
               "01011995."

     2.   Inspection Start and Completion Time

          These two (2) fields consist of four characters each.  The 
          information represents the moment in time (based on twenty-four 
          (24) hours) in which testing is started and the time final emission 
          scores are determined (see 40 C.F.R. Part XX).  The accuracy shall 
          not vary more than five (5) minutes from Eastern Standard Time even 
          if recorded manually.  Adjustments to the twenty-four (24) hour 
          clock to daylight savings time shall be made in early spring and 
          late fall of each year.  The two (2) sets of numbers in these 
          fields are as follows:

          a.   The first set shall be the hour of a twenty-four (24) hour 
               clock.  The first digit shall be zero (0) if the hour of the 
               day is less than ten (10); and

          b.   The second set of digits shall be the minute in which the test 
               was completed.  The first digit shall be a zero (0) if the 
               minute of the hour is less than ten (10).

     3.   Vehicle Identification and Owner Information

          Vehicle and owner information shall be downloaded from an OBMV 
          database.  Downloading of data shall take place upon keyed license 
          plate number entry.  This does not preclude keying or correcting, 
          within the Contractor's database, all or part of the items listed 
          below for any vehicle presented for testing.

          This segment consists of eight (8) fields of information, which 
          shall be downloaded from the vehicle registration database or keyed 
          in by the Contractor from the Application for Renewal of 
          Registration or other official documents.  If a minor discrepancy 
          is found between the information on the


                               42

<PAGE>

          vehicle itself and the documentation accompanying the vehicle, the 
          information on the vehicle takes precedence.  Discrepancies shall 
          be recorded in the error correction codes field.  In cases other 
          than minor discrepancies, the Contractor shall have the right to 
          refuse to test vehicles that fail to match their legal 
          documentation.

          a.   The Vehicle Identification Number (VIN)

               This field consists of seventeen (17) alphanumeric 
               characters. The entire vehicle identification number (VIN) 
               appearing on the current registration card, Application for 
               Renewal of Registration, Application for Title and Renewal, 
               bill of sale, or from the vehicle itself shall be placed in 
               this field.  This field is the key to retrieving test results; 
               therefore, care shall be taken to ensure the accuracy of the 
               information.  No letters "O" or "I" shall be keyed.  The 
               vehicle itself shall be the primary source of information if a 
               discrepancy exists during the initial inspection between the 
               vehicle's legal documentation and the VIN on the vehicle.  
               Upon reinspection, the Vehicle Inspection Report (VIR) barcode 
               from the initial inspection shall be the primary source of 
               information.

               The Contractor shall use VIN verification software to alert 
               motorists regarding incorrect registration information.

          b.   The License Plate Number

               This field consists of seven (7) alphanumeric characters.  The 
               entire license plate number shall appear in this field without 
               a space between any adjacent numbers and letters.  The primary 
               source of information shall be vehicle's license plate number 
               recorded on the initial inspection and the license plate 
               number recorded on the VIR barcode upon reinspection.



                                      43



<PAGE>


            c.    Vehicle Make

                  This field consists of three (3) characters.  The vehicle 
                  make shall be placed in this field using vehicle make coding 
                  provided by OEPA.  The source of information for data entry 
                  during the reinspection is the VIN or the VIR barcode.

            d.    Model Year

                  This field consists of two (2) numeric characters.  The last
                  two digits of the vehicle model year shall be placed in this
                  field. For example, a 1976 model year vehicle shall require 
                  that the number "76" be placed in this field.  The primary 
                  source of information shall be the OBMV database during the 
                  inspection and the VIR barcode upon reinspection.  The vehicle
                  owner's representation or the Contractor's judgment of the 
                  model year shall only be used in the absence of documentation.
                  When a vehicle is reinspected, the accuracy of this field 
                  shall be double-checked and corrected if found to be in error.

            e.    Number of Cylinders

                  This field consists of two (2) numeric characters.  The VIN 
                  shall serve as the primary source of information for this 
                  field.  If there is a problem identifying the number of 
                  cylinders using the VIN the Contractor shall visually verify
                  the number of cylinders.

            f.    Fuel Code

                  This field consists of one (1) character.  The fuel used by 
                  the vehicle shall be determined from the vehicle operator and
                  the following code letters shall be used in the fuel code 
                  field.

<TABLE>
<CAPTION>

                  Fuel Class            Code
                  ----------            ----
                  <S>                   <C>
                  Butane                 B
                  Natural Gas            N
                  Other                  O
                  Propane                P
                  Diesel                 D
                  Gasoline               G

</TABLE>

                  In the event that the vehicle operates using more than one (1)
                  fuel, the code for the actual fuel used by the vehicle upon
                  presentation at the test station shall be placed in the fuel
                  code field.  Gasoline is assumed to be used if no other 
                  information is available.  Anytime the fuel or

                                       44

<PAGE>


                  weight code entered is "B", "N", "IO", or "P", the software 
                  for the OEPA offices shall be directed to go immediately to 
                  the certificate code and automatically enter an "E", meaning
                  a certificate of permanent exemption is being issued.  Note 
                  that only the software created for the central office and 
                  field office OEPA staff shall have the capability of 
                  producing a certificate of permanent exemption for alternative
                  fuel codes.

            g.    Vehicle Net Weight:

                  The Vehicle Net Weight field shall be described in the 
                  Technical Specifications Document described in Paragraph 3.B.
                  of the Change Order.

            h.    Registration Expiration Date

                  This field consists of eight (8) characters and shall be 
                  formatted in the same manner as "Date of Inspection" in
                  Section B.1 (a-c) of this Exhibit and shall contain the
                  expiration date as determined from the registration renewal
                  card or current registration.  This field shall allow testing
                  of a vehicle only if the inspection occurs within 
                  three-hundred-sixty-five (365) days of the license renewal 
                  date.

    4.    Inspection/Reinspection Indicator

          This field consists of one (1) character.

          a.      If the inspection is an initial inspection, a "1" shall be
                  placed in this field.

          b.      If the inspection is a reinspection, number ">=2" shall be 
                  placed in this field to represent the actual test count
                  for the current testing cycle.

    5.    Odometer Reading

          This field consists of three (3) characters.  The odometer reading
          shall be truncated to the last thousand miles (e.g. a vehicle with
          23,501 miles on the odometer should be entered as 23,000).

    6.    Date of Initial Inspection

          This field consists of eight (8) characters.  Each vehicle
          reinspected shall have the date of the initial inspection keyed
          into this field.  The sequence shall be month, day and year, with
          the same specifications as those given in Section B.1 (a-c) of
          this Exhibit.  This shall be printed on the certificate portion of
          the Vehicle Inspection Report (VIR).

                                       45

<PAGE>

    7.    Inspector Identification Number

          This field consists of five (5) characters.  This number will be
          treated as though it were a signature of the inspector conducting
          the inspection.  The Contractor's inspectors shall be held
          accountable for entering accurate information about the vehicle
          and ensuring that a valid test was given to the vehicle.  The
          Contractor shall assign each test inspector a non-duplicating
          sequential identification number.

    8.    HC, CO, and NO Emission Data

          This information consists of nine (9) fields.  All gasoline
          powered vehicles, with the exception of dedicated four-wheel drive
          vehicles, shall be subject to the ASM 2525 transient mode for
          steady state loaded mode test.  Dedicated four-wheel drive
          vehicles shall be subject to the fast idle portion of the Quick
          Test.  The results of the fast idle portion of the Quick Test
          shall be entered in the loaded mode fields as listed below.
          Required data fields are as follows:

          a.     The vehicle's HC exhaust emission in parts per million
                 (ppm) at the idle test condition.  This field shall
                 contain five (5) characters;

          b.     The vehicle's CO exhaust emission in percentage by mol
                 volume at the idle test condition.  This field shall
                 contain four (4) characters;

          c.     The vehicle's HC exhaust emission in ppm at the loaded
                 mode.  This field shall contain five (5) characters;

          d.     The vehicle's CO exhaust emission in percentage by mol
                 volume at the loaded mode.  This field shall contain four
                 (4) characters;

          e.     The C02 value for the idle test for ASM test (not a
                 pass/fail criteria);

          f.     The C02 value for the loaded mode test or ASM test (not a
                 pass/fail criteria);

          g.     The NO value pursuant to the U.S. EPA ASM document;

          h.     The HC value pursuant to the U.S. EPA ASM document; and

          j.     The CO value pursuant to the U.S. EPA ASM document.

    9.    Diesel Opacity Data

                 Diesel powered vehicles shall be tested for percent
                 opacity.  This four character field shall contain the
                 value of the opacity test.

                                       46

<PAGE>

    10.   Tampering Inspection Results

              a.     This field shall consist of two (2) characters with
                     the following character designations:

                     (i)     Catalytic converter inspection results; and

                     (ii)    Gas cap presence inspection.

              b.     A "P" character shall be entered in each position for
                     which a test was performed and the result was a
                     "pass."

              c.     An "F" character shall be entered in each position
                     for which a test was performed and the result was a
                     "fail."

              d.     A "N" character shall be entered in each position for
                     which a code is inapplicable.

              If a vehicle fails for any of the above emission equipment,
              an "F" shall be entered.

    11.   Pass/Fail Codes

               a.    This field consists of seven (7) characters with the
                     following character designations:

                     (i)   HC emission test results at the idle test
                           condition;

                     (ii)  CO emission test results at the idle test
                           condition;

                     (iii) HC emission test results at the loaded mode
                           or fast idle of approximately 2500 rpm test
                           condition;

                     (iv)  CO emission test results at the loaded mode
                           or fast idle of approximately 2500 rpm test
                           condition;

                     (v)   Tampering test results;

                     (vi)  Opacity test results (for diesel powered vehicles)
                           (see Exhibit H); and

                     (vii) HC, CO, and NO test results at ASM loaded mode 
                           conditions.

                b.    A "P" character shall be entered in each position for
                      which a test was performed and the result was a
                      "pass."

                                        47

<PAGE>

                  c.    An "F" character shall be entered in each position
                        for which a test was performed and the result was a
                        "fail."

                  d.    An "N" character shall be entered in each position
                        for which a code is not applicable.

      12.   Overall Pass/Fail Decision

                  This field consists of one (1) character.  The value in
                  this field depends on a series of contingencies, which
                  vary as a function of vehicle class and model year.  The
                  contingencies are as follows:

                  a.   For gasoline powered vehicles subject to the
                       inspection requirements:

                       (i)  A "P" shall be placed in this field if the
                            vehicle passes the idle test (both HC and CO),
                            the loaded mode test or the ASM test (both HC
                            and CO), the gas cap pressure test and the
                            tampering test.

                      (ii)  An "F" shall be placed in this field if the 
                            vehicle fails the idle test, the loaded
                            mode test or ASM test, the gas cap pressure test
                            or the tampering test.

                  b.   For diesel powered vehicles subject to the inspection
                       requirements:

                       (i)  A "P" shall be placed in this field if the
                            vehicle passes the opacity test.

                      (ii)  An "F" shall be placed in this field if the 
                            vehicle fails the opacity test.

      13.   Certificate Status Code

                  This field consists of one (1) character and shall
                  contain a status code indicating the type of certificate
                  issued as a result of the inspection.

                  "C"-means Certificate of Compliance

                  "N"-means Certificate of Noncompliance

                  "E"-means Certificate of Permanent Exemption
  
                  "W"-means Certificate of Waiver

                                      48
<PAGE>

                  "H"-means Certificate of Hardship Extension

                  "X"-means Certificate of Extension

                  "B"-means Certificate of Extension Compliance

                  Only the station manager, assistant manager, and OEPA
                  auditors shall have security access to issue a
                  certificate of waiver.

                  The certificate identification number shall be
                  automatically entered into the OBMV database field (see
                  paragraph B.16 of this Section) if the status code
                  field contains "C", "E" or "W".

                  a.    If the value in the overall pass/fail decision field
                        for initial inspections or reinspection is a "P",
                        then a "C" shall be entered in this field and
                        "COMPLIANCE" shall be printed on the certificate
                        portion of VIR.  If the value in the overall
                        pass/fail decision field is an "F", then a "N" shall
                        be entered in this field and "NON-COMPLIANCE" shall
                        be printed continuously on half of the certificate
                        portion of the VIR, and the CAA 207(B) warranty
                        message printed on the other half.  If the value "E"
                        is entered in this field, then "PERM EXEMPT" shall be
                        printed on the certificate portion of the VIR.  If
                        the value "W" is entered in this field, then "WAIVER"
                        shall be printed on the certificate portion of the
                        VIR.  If the value "X" is entered into this field,
                        then "EXTENSION" shall be printed on the certificate
                        portion of the VIR.  If the value "H" is entered in
                        this field, then "HARDSHIP EXTENSION" shall be
                        printed on the certificate portion of the VIR.

                  b.    Anytime the fuel or weight code entered is "B," "N,"
                        "O," or "P", the software for the OEPA offices should
                        automatically enter an "E" in the character field and
                        "PERM EXEMPT" shall be printed on the certificate
                        portion of the VIR.

      14.   Certificate Expiration Date

                  This field shall consist of eight (8) characters.  The
                  field should be formatted pursuant to Subsection B.1 of
                  this Exhibit.  The certificate expiration date shall be
                  the date three hundred sixty-five (365) days after an
                  initial inspection.

      15.   Other Data Fields

                  The Contractor shall collect other information, which
                  would aid in program operation when requested by OEPA.
                  Costs of said request

                                      49
<PAGE>

            to be born by the OEPA.

      16.   Certificate Identification Number

            This field shall consist of a combination of other data
            fields, which are described in this Section.  An algorithm,
            similar to those employed to create check redundancy codes
            (CRC), has been developed by the OBMV and shall be used by
            the Contractor in each of the three Zones to produce the
            Certificate Identification Number.  The OBMV shall use the
            algorithm to verify that a valid compliance certificate is
            entered in its database prior to the issuance of a
            registration renewal.

            NOTE: If the "Certificate Status Code" indicates "N"
            for noncompliance, no certificate identification number
            shall be written into the OBMV data file field.

      17.   BARCODE Information

            The following information shall be transposed into BARCODE
            language to be printed onto the VIR of failed vehicles only;

            a.    VIN;

            b.    License Plate Number;

            c.    Vehicle Year;

            d.    Vehicle Make;

            e.    HC and CO idle and loaded mode and ASM mode initial
                  inspection results (ppm and %);

            f.    Tampering inspection results; and

            g.    Diesel inspection results (for diesel powered vehicles);

C.    Vehicle Inspection Reports

      If the vehicle is to be retested, the Vehicle Inspection Report
      (VIR) from the initial inspection shall be returned to the
      centralized inspection station by the motorist.  The back of the
      VIR shall be completed by the person repairing the vehicle.  The
      Contractor shall create a database, enter repair information into
      the database and provide reports of repair information which
      conform to the performance monitoring requirements in 40 CFR
      51.369. Reports summarizing repair performance information shall
      be made available to motorists who fail the initial inspection.

                                      50
<PAGE>

D.    Inspection Data Analysis and Reports

      The Contractor shall submit reports listed below as well as any
      additional reports required for ASM testing pursuant to U.S. EPA
      ASM document and the Quick Test and/or any reports developed and
      required pursuant to the documents listed in paragraph 3.D.1 of
      the Change Order.

      The Contractor shall provide emission test data analyses and
      furnish to OEPA the summary reports listed below on a weekly,
      monthly, quarterly and yearly basis on the same frequency as
      currently exists, or as mutually agreed by the Parties.  The
      Contractor shall also maintain software that allows OEPA staff
      to generate the following quality assurance and enforcement
      reports:

            1. Required reports and notices as developed with and
            approved by OEPA, are as follows (provided that existing
            reports will only be changed to the extent necessary to
            reflect the ASM 2525 test procedure):

                  a.  Wait time Report;

                  b.  Daily Billing Report;

                  c.  Daily Fee Report;

                  d.  Daily Throughput Report;

                  e.  Daily Wait Time Report;

                  f.  Daily Wait Time Breakdown Report;

                  g.  Fee Summary Report;

                  h.  Idle Emission Summary Report;

                  i.  Lane Status Report;

                  j.  Pressure Test Summary Report;

                  k.  Repair Facility Report;

                  l.  Station Status Report;

                  m.  Throughput Summary Report;

                  n.  PR Test by Zone and Station Number;

                  o.  Emission Fail Rate by Model Year Report;

                                      51
<PAGE>


          p.   Control Chart Report;

          q.   ASM Emission Summary Report;

          r.   Network Summary Report;

          In the future OEPA shall have the right, upon thirty (30) day 
          notice to the Contractor, or upon such other schedule as mutually 
          agreeable by the Parties, to require the Contractor to provide the 
          following reports:

          s.   Consumer Complaints and Damage Claims Report;

          t.   Listing of Significant problems encountered during the month 
               (for example fire and accidents);

          u.   Summary of Lane and Equipment Downtime Report;

          v.   Loss of any Test Data; and

          w.   Any Changes made in Basic Operational or Test Procedures that 
               affects the motorist.

     2.   Additional Reports

          OEPA may request that the Contractor provide reports other than the 
          reports enumerated above and the Contractor shall offer such 
          reports as a cost which shall include time, materials and overhead.

     3.   Report Deadlines

          a.   Weekly reports are due no later than the third Business Day of 
               the following week of the reporting period.

          b.   Monthly reports are due no later than the fifteenth Business 
               Day of the following month of the reporting period.

          c.   Quarterly reports are due no later than the fifteenth Business 
               Day of the month following the quarter reporting period.

          d.   Semiannual reports are due no later than the fifteenth 
               Business Day of the month following the prior six-month 
               reporting period.

          e.   Annual reports are due no later than thirty Business Days 
               following the anniversary date of the program start date.

     4.   Reporting of Inspection Results/Documentation



                                       52

<PAGE>

          The Contractor shall be responsible for ensuring that all relevant 
          data are entered into the Contractor's database and that the 
          appropriate data are transmitted to the State (OBMV and/or OEPA). 
          The Contractor shall be responsible for providing a printed copy of 
          an inspection report to each motorist.  The Contractor shall also 
          retain a duplicate electronic copy of the entire test data for two 
          and one half years.

          The Contractor shall give operators of vehicles both passing and 
          failing the inspection an inspection report. the inspection report 
          shall be designed by the Contractor and approved by OEPA.  The 
          Contractor shall design and print the forms which shall contain, at 
          a minimum, the information listed below;

          a.   Date and time of test;

          b.   Test number (initial, first retest, second retest, etc...);

          c.   Test lane ID number/inspector's ID numbers;

          d.   Vehicle plate number;

          e.   VIN;

          f.   Vehicle make and model year;

          g.   Odometer reading (to the nearest thousand);

          h.   Tampering inspection results;

          i.   Emissions inspection results and pass/fail determination;

          j.   Emission standards applicable to the vehicle;

          k.   Inspection cost;

          l.   Three lines reserved for slogans, clean air or safety message
               which may be changed;

          m.   Type of emissions and/or tampering failure;

          n.   Warranty information, if appropriate;

          o.   Warning that there will be no registration renewal until the
               vehicle has passed or is waived; and



                                         53

<PAGE>

          p.   Waiver information

          The report shall indicate that the vehicle shall be returned to an 
          inspection station (following repair) for reinspection.  Space on 
          the form shall be provided for emission repair documentation as 
          required by the State.

          All motorists shall be given a brief explanation of results 
          (pass/fail) and instructions explaining the next step required in 
          the inspection process.  The inspection report is to be provided by 
          the Contractor.  The document must contain security features to 
          discourage counterfeiting.

5.   The Contractor shall agree to provide OEPA with the appropriate access 
     to their database to allow for the generation of reports, sorted 
     chronologically by test date, for the following items:

     a.   License tag number;

     b.   Inspector identification number;

     c.   Inspection lane number; and

     d.   Facility number.

E.   Recall

     The Contractor shall implement any necessary changes to comply with 
     vehicle recall requirements as mandated by U.S. EPA when the U.S. EPA 
     central database is established and available.




                                         54

<PAGE>


                            EXHIBIT E

        ASM 2525 AND QUICK TEST PROGRAM DOCUMENTATION AND
                     REPORTING REQUIREMENTS

    A.   Data and Documentation Expectations

         To assure that the Contractor designs and implements an emission 
         inspection program on schedule, the Contractor shall be required to 
         submit design and implementation data during various stages of the 
         Change Order.

    B.   Documentation of System Changes

         System changes subsequent to completion of the network shall be 
         documented in a manner similar to that used for the original design 
         of the network.  Reasons for changes and the effective dates of 
         changes shall be documented.  All copies of documentation previously 
         delivered to the OEPA representative shall be updated. All changes 
         to the software that effects the test process shall have prior 
         approval of OEPA before Contractor implementation.

    C.   Off-Site Data Repository

         The Contractor shall maintain an off-site data repository for all 
         software and data for the life of the Zone 4, Zone 1, and Zone 2 
         Contracts.


                                       55

<PAGE>

                                  EXHIBIT F

               ASM 2525 AND QUICK TEST COMPUTER SPECIFICATIONS


A.    Host Computer

      1.    Contractor shall use existing host hardware as well as any
            additional hardware necessary to conduct ASM 2525.

B.    System Security

      A multi-level access code and security system shall allow normal 
      testing by the Contractor's staff, control by the station manager, and 
      access for the Contractor's Program Manager and OEPA to implement 
      changes.

      The security system shall consist of addressable entry computers having 
      levels of access to databases and assigned access codes for individual 
      authorized users.

      The levels of access shall allow certain inquiries, additions, 
      deletions, changes and inputs to computers from specific locations as 
      follows:

            Station Computers - Entry of test and quality assurance
            data with no changes permitted.  Changes to test records
            not permitted.

            Office Computers - Changes to the structure of
            Contractor's database permitted.  Changes to test records
            and the databases are not permitted.

            OEPA Computers - Read-Only access to Contractor's
            database permitted.  Changes to test records and the
            databases are not permitted.

      The Contractor's security system shall not allow changes to information 
      in the registration database.

      The Contractor's security system shall account for all license plate 
      inquiries and entries conducted by its employees, for which no 
      corresponding vehicle inspections were performed. The Contractor's 
      employees shall not, through act or omission, release any OBMV 
      registration information for any purposes other than valid vehicle 
      inspections.  The Contractor shall terminate the employment of anyone 
      found to have released such information outside scope of the normal 
      vehicle emission inspection process.

      The Contractor shall describe the physical security of the host system 
      and any connected terminals or computers.  The description shall 
      include the location of


                                     56

<PAGE>

      the item, applicable security access, and security method (e.g. locked 
      room, keyboard lock, etc.).

      The Host system (2) DEC Alpha 2100 and related peripherals shall 
      reside in a centrally located room within the Contractor's headquarters 
      with a separately maintained climate controlled environment.  Access to 
      this room shall only be available through an outer office.  After hours 
      monitoring shall be maintained by a security system, which includes: 
      motion sensors and a live twenty-four (24) hour monitoring system that 
      shall alert the proper authorities in the event of an attempted 
      break-in.

C.    Contractor shall use the following system computers or equivalents in the 
      test lanes:

<TABLE>
<CAPTION>
- ----------------------------------
      POSITION #1 PC/ /
- ----------------------------------
<S>   <C>
- ----------------------------------
             HARDWARE
- ----------------------------------
1     DECpc 433sx LPx 
      (486sx 33 MHz)
- ----------------------------------
2     8 MB (2x4MB SIMMs)
- ----------------------------------
3     Add-on Memory
      (4MB SIMM)
- ----------------------------------
4     340 MB Hard Drive
- ----------------------------------
5     3.5" 1.44 MB Floppy Drive
- ----------------------------------
6     Etherworks 3, Turbo 
      Network Interface Card
- ----------------------------------
7     Video Card
- ----------------------------------
- ----------------------------------
             SOFTWARE
- ----------------------------------
1     MS-DOS, Version 6.21
- ----------------------------------
2     Microsoft Windows, Version
- ----------------------------------
3     Microsoft Windows for 
      Workgroups, Version 3.11
- ----------------------------------
4     DEC PathWORKs, Version
      5.1
- ----------------------------------
5     Visual Basic Run Time, 
      Version 3.0 Professional
- ----------------------------------
6     Application
- ----------------------------------
</TABLE>


                                     57

<PAGE>

<TABLE>
<CAPTION>
- ----------------------------------
        POSITION #2 - PC/ /
- ----------------------------------
<S>   <C>
- ----------------------------------
             HARDWARE
- ----------------------------------
1     DECpc 466d2 LPx 
      (48666 MHz)
- ----------------------------------
2     4 MB (4MB SIMMs)
- ----------------------------------
3     Add-on Memory 
      (8MB 2x4MB SIMMs)
- ----------------------------------
4     128 KB Cache
- ----------------------------------
5     170 MB Hard Drive
- ----------------------------------
6     3.5" 1.44 MB Floppy Drive
- ----------------------------------
7     Etherworks 3, Turbo 
      Network Interface Card
- ----------------------------------
8     Video Card
- ----------------------------------
9     ADAC 504OMF, 
      Multifunction Data Acquis. 
      Board
- ----------------------------------
10    RPM Board (NON Contact)
- ----------------------------------
11    Jameco Add-on I/O Board
- ----------------------------------
12    Jameco Slave Serial 
      Connector
- ----------------------------------
- ----------------------------------
- ----------------------------------
             SOFTWARE
- ----------------------------------
1     MS-DOS, Version 6.21
- ----------------------------------
2     Microsoft Windows,
      Version 3.1
- ----------------------------------
3     Microsoft Windows for 
      Workgroups, Version 3.11
- ----------------------------------
4     DEC PathWORKs, Version 5.1
- ----------------------------------
5     Visual Basic Run Time, 
      Version 3.0 Professional
- ----------------------------------
6     Application
- ----------------------------------
</TABLE>

<TABLE>
<CAPTION>
- ----------------------------------
        POSITION #3 - PC/ /
- ----------------------------------
<S>   <C>
- ----------------------------------
             HARDWARE
- ----------------------------------
1     DECpc 433sx LPx 
      (486sx 33 MHz)
- ----------------------------------
2     4 MB (4MB SIMM)
- ----------------------------------
3     Add-on Memory
      (8MB 2x4MB SIMMs)
- ----------------------------------
4     170 MB Hard Drive
- ----------------------------------


                                     58

<PAGE>
<CAPTION>
<S>   <C>
- ----------------------------------
5     3.5" 1.44 MB Floppy Drive
- ----------------------------------
6     Etherworks 3, Turbo 
      Network Interface Card
- ----------------------------------
7     Video Card
- ----------------------------------
8     ADAC 504OMF, Multifunction 
      Data Acquis. Board
- ----------------------------------
9     Jameco Add-on I/O Board
- ----------------------------------
- ----------------------------------
             SOFTWARE
- ----------------------------------
1     MS-DOS, Version 6.21
- ----------------------------------
2     Microsoft Windows, Version
      3.1
- ----------------------------------
3     Microsoft Windows for 
      Workgroups, Version 3.11
- ----------------------------------
4     DEC PathWORKs, Version
      5.1
- ----------------------------------
5     Visual Basic Run Time, 
      Version 3.0 Professional
- ----------------------------------
6     Application
- ----------------------------------
7     Diagnostic DB 
- ----------------------------------
</TABLE>

<TABLE>
<CAPTION>
- ----------------------------------
           WAIVER PC/ /
- ----------------------------------

- ----------------------------------
      Note: All PC card slots are 
      referenced from the rear of 
      the PC, from right to left 
- ----------------------------------
      HARDWARE
<S>   <C>
- ----------------------------------
1     DECpc 466d2 LPx 
      (486 66 MHz)
- ----------------------------------
2     8 MB (2x4MB SIMMs)
- ----------------------------------
3     Add-on Memory 
      (4MB SIMM)
- ----------------------------------
4     340 MB Hard Drive
- ----------------------------------
5     3.5" 1.44 MB Floppy Drive
- ----------------------------------
6     Etherworks 3, Turbo Network
      Interface Card
- ----------------------------------
7     Video Card
- ----------------------------------
8     SCSI Interface Card
- ----------------------------------
9     1 GB SCSI hard disk drive
- ----------------------------------
10    CD-ROM Drive
- ----------------------------------
- ----------------------------------
      SOFTWARE
- ----------------------------------
1     MS-DOS, Version 6.21
- ----------------------------------
2     Microsoft Windows, Version
      3.1
- ----------------------------------


                                     59

<PAGE>
<CAPTION>
<S>   <C>
- ----------------------------------
3     Microsoft Windows for 
      Workgroups, Version 3.11
- ----------------------------------
</TABLE>

      The aforementioned computers shall be stand-alone units (not terminals) 
      capable of performing the lane testing functions even if the link to 
      the host computer is severed for any reason.  The lane computers, 
      hardware and software shall utilize up-to-date technology and shall be 
      capable of expansion.  The software shall have the flexibility to 
      accommodate increases in the number of parameters and/or changes in 
      test procedures.  The lane computers shall meet, at a minimum, the 
      following specifications:

            -80486SX processor
            -33 MHz clock speed
            -4 MB RAM (expandable to 16 MB) 
            -80 MB hard disk
            -1.44 MB 3.5" floppy disk drive 
            -Serial and parallel ports 
            -VGA color monitor with 14" diagonal screen size 
            -101 key full function keyboard 
            -High speed (240 cps) 24 pin dot matrix printer 
            -MS DOS 6.0 (or latest version) operating system 
            -Integrated bar code reader

      The Contractor shall list the features of the lane computers used in 
      the inspection network.

      The Contractor shall provide computer software changes as requested by 
      the OEPA that in OEPA's determination are necessary for compliance with 
      the Contract Documents.  OEPA shall endeavor to keep software changes 
      at a minimum and provide the Contractor with ample time to implement 
      such changes.

      The lane computer shall provide the functions of real time control of 
      testing, processing, storing, and printing of acquired data at the 
      inspection position.

      The lane computer shall perform the following functions:

      1.    Accept vehicle identification data;

      2.    Accept manually entered vehicle data;

      3.    Calculate and correlate vehicle data and select failure limits;

      4.    Control and monitor dynamometer loading;

      5.    Control sample gas flow;

                                     60

<PAGE>

      6.    Control gas analyzer span and zero check gases;

      7.    Control test sequence via test display;

      8.    Accept test control inputs from operator;

      9.    Accept measured values from gas analyzers, opacity analyzers, 
            evaporative pressure check equipment and dynamometer;

      10.   Adjust measured values to correct for analyzer drift;

      11.   Linearize, scale, curve fit and compare measured values to limits 
            separately for each individual infrared cell;

      12.   Output test data for report printout; and

      13.   Output test data to bulk storage devices.

D.    OEPA Computers

      OEPA central office computer shall access the databases in each zone's 
      host computer (including the host computer for Cuyahoga County tailpipe 
      emissions program) and generate the reports described in Exhibit D.

      Contractor shall provide a personal computer, laser printer and modem 
      to the OEPA field office in its zone or, if access to the Novell 
      network is achieved, the modems and phone line connections shall 
      connect to the Division of Air Pollution Control's LAN.

      The Contractor shall be capable to transmit to the OEPA's central office 
      computer (via modem) the data available to the office terminals as well 
      as to access real-time query reports.  The query reports shall provide 
      information regarding number of inspections performed in a given period 
      of time (month, year-to-date, etc.), and failure rate for a given 
      period of time.  The field offices in each zone shall also have access 
      (via modem) to this information from the Contractor.  The Contractor 
      shall provide a listing of real-time reports that can be generated or 
      accessed by the OEPA computer.

      The OEPA computer shall also be capable of accessing OBMV data.

      The minimum specifications for the central office computers are as 
      follows:

      1.    32-bit 80486DX micro-processor with overdrive socket;

      2.    minimum 32Mhz clock speed;

                                     61

<PAGE>

      3.    64 KB hardware cache;

      4.    Minimum 8MB RAM;

      5.    Internal 35" 1.44 MB floppy disk drive and controller;

      6.    Internal 100 MB (minimum) IDE hard drive and controller;

      7.    One parallel port;

      8.    Two serial ports;

      9.    MS DOS 6.0 latest version;

      10.   Minimum three available expansion slots;

      11.   Real time clock/calendar with battery backup;

      12.   101 (or greater) detachable extended keyboard;

      13.   VGA color monitor with 14" diagonal screen size with tilt swivel 
            base;

      14.   Microsoft mouse or compatible;

      15.   Built-in mouse interface or third serial port;

      16.   200 Watt (minimum) power supply;

      17.   Super VGA 16-bit power graphics card with 1-MB (minimum) RAM;

      18.   Uninterruptable power supply (UPS);

      19.   Hewlett-Packard Laserjet 5L with 600 dpi resolution or equivalent; 
            and

      20.   9600 baud modem (v.32 bis)

E.    Documentation

      Computer specification documentation shall be updated after each change 
      to the system in the Compatibility Specifications.


                                     62


<PAGE>

                                   EXHIBIT G


OHIO ASM NETWORK

<TABLE>
<CAPTION>

    Northern Ohio

    Station No.          Station Name No. of Lanes
    <S>                  <C>                                 <C>
         1               Westlake                            4
         2               Berea                               3
         3               North Royalton                      4
         4               Cleveland West                      5
         5               Cleveland Central                   4
         6               Valleyview                          4
         7               Cleveland East                      3
         8               Warrensville Heights                5
        10               Euclid                              4
        11               Willoughby                          3
        12               Painesville                         3
        13               Chardon                             2
        14               Auburn                              2
        15               Rootstown                           3
        16               Kent                                3
        17               Twinsburg                           3
        18               Cuyahoga Falls                      3
        19               Akron South                         6
        20               Akron West                          5
        21               Medina                              3
        22               Spencer                             2
        23               Amherst                             3
        24               Elyria                              3

        Subtotal                                            79

    Dayton

        31               Springfield                         3
        32               Enon                                3
        33               Xenia                               2
        34               Beavercreek                         4
        35               Moraine                             5
        36               Harrison                            5
        37               Dayton                              4
        38               Madison                             2

        Subtotal                                            28

    TOTAL                                                  107

</TABLE>


                                       63


<PAGE>


                                   EXHIBIT H

                             OEPA CHANGE ORDER COST

<TABLE>
<S>   <C>                                                                   <C>
- ------------------------------------------------------------------------------------
1.    Removal and Installation of Equipment                                     530
      Decompression of CVS:
      Installation of BAR 97
      Includes: Management, Labor, vehicle and equipment rental
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
2.    Sample System
      Network (107 lanes)                                                       669
      Spares (20)                                                               113
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
3.    Dynamometer Modifications                                                 128
      Cooling Blowers, Air Ducts, Cables, Relays
      Labor and spares
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
4.    Position 2 Modifications
      ADAC unit, relocate dyne computer, fabricate cables                       107
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
5.    Facility Modifications
      Ventilation, booth mods., guard rails, electrical mods., data entry   1,556.5
      - approximately $52K per facility
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
6.    Training for Station staff and technicians                                150
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
7.    Engineering                                                               786
      H/W Engineer; Test Sequence; Host Modifications;
      Horiba driver; transactions, QA; Underhood; ATP
      Documentation; Travel; Operating Supplies; Project Management
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
8.    Public Information Start-Up Activities                                    150
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------
      Total                                                                 4,189.5
- ------------------------------------------------------------------------------------
</TABLE>


                                     64

<PAGE>

      By signing below, the parties affirm that they have read this Change 
Order and agree to be bound by all terms conditions and provisions therein.



WITNESSES:                             ENVIROTEST SYSTEMS CORP.

/s/ [ILLEGIBLE]                        BY:  /s/ F. Robert Miller
- ---------------------------------           ---------------------------------
                                            F. Robert Miller, President & CEO


 /s/ [ILLEGIBLE]                       DATE:            May 6, 1998
- ---------------------------------           ---------------------------------


                                       OHIO ENVIRONMENTAL
                                       PROTECTION AGENCY


 /s/ [ILLEGIBLE]                       BY:  /s/ Donald R. Schregardus
- ---------------------------------           ---------------------------------
                                            Donald R. Schregardus, Director

 /s/ [ILLEGIBLE]                       DATE:            May 18, 1998
- ---------------------------------           ---------------------------------


                                       BETTY D. MONTGOMERY
                                       ATTORNEY GENERAL OF OHIO


 /s/ [ILLEGIBLE]                       BY:  /s/ Christopher Jones
- ---------------------------------           ---------------------------------
                                            Christopher Jones, Esq.
                                            Chief, Environmental
                                            Enforcement Section

 /s/ [ILLEGIBLE]                       DATE:            May 18, 1998
- ---------------------------------           ---------------------------------


                                      
<PAGE>

                                  [LETTERHEAD]

                                   May 5, 1998


Christopher Jones, Chief
Environmental Enforcement Section
Attorney General's Office
State Office Tower
30 East Broad Street
Columbus, OH 43215-3428

      Re:   Agreement Regarding Penalty Provisions of Envirotest - OEPA Contract

Dear Chris:

      This letter contains Envirotest Systems Corp. and the State of Ohio's 
understanding regarding future negotiations between the parties.

      The parties agree to engage in good faith negotiations regarding 
modifications to Section 13 of the Contract.  The negotiations will commence 
by September, 1998, and will address (i) possible revision of the wait time 
penalties considering the wait time penalties customarily contained in 
vehicle emissions testing contracts, (ii) clarification of the inadequate 
staffing penalty to provide sufficient standards for an objective 
determination of compliance, and (iii) such other revisions and 
clarifications as either party may propose.

                                       Sincerely yours,

                                       /s/ Thomas M. Skove

                                       Thomas M. Skove

TMS:cls
AGREED AND ACCEPTED:

/s/ Christopher Jones
- -----------------------------
Christopher Jones

<PAGE>

                                  [LETTERHEAD]

                                   May 4, 1998


Christopher Jones, Chief
Environmental Enforcement Section
Attorney General's Office
State Office Tower
30 East Broad Street
Columbus, OH 43215-3428

      Re:   Amendment to Ohio Rev. Code Section 3704.14

Dear Chris:

      This letter contains Envirotest Systems Corp. and the State of Ohio's 
understanding regarding future actions which the State will undertake.

      The parties have agreed upon language to conform Ohio Rev. Code 
Section 3704.14 to the current contract provisions relating to the motorists' 
payments for emissions tests.  Pursuant to the agreed upon language, 
motorists would pay the test fee at the initial test, whether or not the 
vehicle passed the test. Ohio EPA has agreed that it will attempt to 
insert this legislative language in the budget corrections bill that the 
administration is working to have introduced in May in the General Assembly.  
If that effort is unsuccessful, Ohio EPA will attempt to recommend the 
language in its FY 2000-2001 agency budget or at the first reasonable 
legislative opportunity.

                                       Sincerely yours,

                                       /s/ Thomas M. Skove

                                       Thomas M. Skove

TMS:cls

The above is Acknowledged and Agreed to:

/s/ Christopher Jones
- -----------------------------
Christopher Jones

<PAGE>

                                  [LETTERHEAD]

                                  April 29, 1998


Christopher Jones, Chief
Environmental Enforcement Section
Attorney General's Office
State Office Tower
30 East Broad Street
Columbus, OH 43215-3428

      Re:   Sublease of Envirotest Dayton office to OEPA

Dear Chris:

      The attached summary contains the terms under which Envirotest will 
sublease a portion of its Dayton office to OEPA.

                                       Sincerely yours,

                                       /s/ Thomas M. Skove

                                       Thomas M. Skove

TMS:cls

The above is Acknowledged and Agreed to:

/s/ Christopher Jones
- -----------------------------
Christopher Jones


<PAGE>

                    OEPA RENTAL PROPOSAL FOR DAYTON OFFICE

<TABLE>
<CAPTION>
                                                                   Monthly
                                                                    Cost
                                                                   -------
<S>   <C>                                                          <C>

1.    Rent                                                         $  850
      850 sq. ft. billed @ $12/sq. ft. annually

2.    Utilities       
      -  Gas (Billed @ 20% of HQ total monthly expense)               200*
      -  Electricity (Billed @ 20% of HQ total monthly expense)        45*
      -  Water (Billed @ 20% of HQ total monthly expense)              19*

3.    Communications                                                  370*
      -  Billed @ 20% of HQ total monthly expense

4.    Miscellaneous
      -  Security (Billed @ 20% of HQ total monthly expense)           13
      -  Trash (Billed @ 20% of HQ total monthly expense)              13
      -  Janitorial (Billed @ 20% of HQ total monthly expense)         73
      -  Snow removal (only billed when actual expenses occur)          7

                                                                   ------
      TOTAL                                                        $1,590
                                                                   ------
                                                                   ------
</TABLE>


* AVERAGE MONTHLY COSTS



<PAGE>

                       ADDITIONAL TERMS AND CONDITIONS

                                  OF

AMENDMENT TO CONTRACT BETWEEN THE STATE OF CONNECTICUT AND
ENVIROTEST SYSTEMS CORP. FOR THE ESTABLISHMENT AND OPERATION OF
MOTOR VEHICLE INSPECTION PROGRAM FACILITIES FOR THE STATE OF
CONNECTICUT, DATED APRIL 14, 1994

1.  All words and phrases in this amendment which are capitalized shall have 
the meanings stated in Exhibit B of the Contract.  As used herein, "Contract" 
means the Contract as amended by this amendment.

     All references in the Contract to "I/M 240" and "I/M 240 testing", 
beginning with the definition in Exhibit B, page 2 of the Contract, shall be 
deemed to refer to an alternative enhanced emissions test procedure which the 
State desires and the Contractor shall undertake to perform on all vehicles 
for the remainder of the term of the Contract, unless a vehicle is exempted 
by the Connecticut General Statutes or the DMV Regulations.  The said 
alternative procedure specified by the State, which is intended to produce 
substantially similar or equivalent results in the identification of vehicles 
subject to repair requirements, is known as the "ASM 25/25 test."

     The description of the ASM 25/25 test procedures is attached as Exhibit A.

                                     -1-

                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

Changes to such test procedures not having a significant impact upon the cost 
of performance may be made by agreement of the parties at any time, or from 
time to time, in accordance with the provisions of Section 15.0A, Exhibit E 
of the Contract.

     The parties intend to work out the technical specifications of the ASM 
test after the execution of this amendment.  The Contractor has provided such 
ASM technical specifications to the State for review and approval.  The State 
shall provide written approval of the ASM technical specifications, which 
shall include any modification the parties reasonably agree to, within ten 
(10) days of the effective date of this amendment.  The technical 
specifications agreed upon will be signed by both parties and become part of 
the Contract.  Changes to the technical specifications not having a 
significant impact upon the cost of performance may be made by agreement of 
the parties at any time, or from time to time, in accordance with the 
provisions of Section 15.0A, Exhibit E of the Contract.

     All provisions of the Technical Specifications to the Contract that 
refer to the I/M 240 test or imply or assume the performance of any elements 
of the I/M 240 test procedure are deemed to be amended to refer to the ASM 
25/25 test.  The Technical Specifications shall remain in full force and 
effect unless they are inconsistent with, or not required for, the 
performance of the ASM 25/25 test or are expressly modified by the terms and 
conditions of this amendment.

     Exhibit B Definitions of the Contract is amended to add the following:

                                     -2-

                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

"ASM 25/25--This is the single mode ASM2525 test procedure as specified in 
section 85.2(d)(2) of the EPA Acceleration Simulation Mode Test Procedure, 
Emission Standards, Quality Control Requirements, and Equipment 
Specifications - Technical Guidance (EPA-AA-RSPD-IM-96-2) July 1996.  This 
document and a technical specifications document to be agreed to by the 
Contractor and the State will also serve as the primary guide for all other 
ASM specifications, with specific exceptions to references to other ASM modes 
that are not applicable to the ASM2525."

2.  In Exhibit C, page 1, paragraph numbered 1, the third sentence of the 
Contract is deleted in its entirety and the following is substituted:

    "All existing Lanes shall have the capability for ASM 25/25 testing on 
    January 1, 1998."

3.  In Exhibit C, page 2, paragraph numbered 2, of the Contract is deleted in 
its entirety and the following is substituted.

    "The Contractor shall perform the ASM 25/25 test on all vehicles that are 
    not otherwise exempt in accordance with the Connecticut General Statutes or
    the DMV Regulations.  Such test shall be performed annually on all such 
    vehicles that are model years 1980 and earlier and biennially for all other
    model years."

4.  In Exhibit C, page 2, paragraph numbered 3, of the Contract is deleted in 
its entirety.

                                     -3-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

5.  In Exhibit C, page 2, paragraph numbered 8, of the Contract is deleted in 
its entirety, and the following is substituted.

    "The State may conduct a program, for the registered owners of fleets of 
    vehicles, known as the Fleet Inspection Program, whereby such vehicles are
    inspected for emissions compliance at the location where such vehicles are
    garaged by their owners, subject to State standards and supervision, and are
    thereby relieved of the requirement to undergo inspection by the Contractor 
    at an official inspection station.  However, the number of vehicles removed 
    by the State from testing by Contractor for fleet testing shall not exceed 
    fourteen thousand (14,000) for any consecutive two-year period as measured 
    from the effective date of this amendment.  The number removed for the 
    remaining term of the Contract shall, if less than two years, be prorated 
    accordingly.  Contractor shall make no claim and the State shall have no 
    liability to Contractor in connection with any fleet inspections removed 
    by the State (a) before the effective date of this amendment, and (b) after
    the effective date of this amendment except to the extent that the number 
    of vehicles removed by the State for fleet testing exceeds fourteen thousand
    (14,000) for any consecutive two-year period in which event the Contractor 
    is entitled to be compensated for the number in excess of fourteen thousand
    (14,000) (or a prorated amount if the remaining term of the Contract is less
    than two years), such payment to be made

                                     -4-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

    at the end of such two-year period within sixty (60) days of Contractor 
    submitting to the State an invoice for such payment.  The compensation 
    shall be the average test fee during such period multiplied by such excess
    number."

6.  In Exhibit C, page 4, of the Contract delete the table regarding the 
description of the network sites and facilities and substitute the table 
shown in the attached Exhibit B to this amendment.

7.  In Exhibit C, page 5, of the Contract delete the first two sentences on 
the page, concerning a Bridgeport site.

8.  In Exhibit C, page 5, paragraph 3.0, of the Contract delete the fourth 
sentence, in its entirety, concerning a pressure and purge test.

9.  In Exhibit C, Table 3.0, following page 5, of the Contract delete the 
entire content of the table and substitute the table herein entitled 
"Matrix" (following this page).  All references in the Technical 
Specifications to On Board Diagnostics shall be changed to On Board 
Diagnostics II and shall only apply to model years beginning in 1996.  All 
additional changes that are appropriate to conform the Technical 
Specifications to On Board Diagnostics II shall be deemed made.

THE REST OF THIS PAGE INTENTIONALLY LEFT BLANK

                                     -5-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

10.  In Exhibit C, section 5.3, of the Contract add the following at the end 
of the section:

     "The Contractor also shall be subject to an ATP including the foregoing 
     elements after the effective date of this amendment modifying the 
     enhanced test procedure.  The ATP shall include a demonstration of 
     functional capability under actual or simulated field conditions to be 
     specified in more detail on or before October 24, 1997 by the State and 
     made known to Contractor in advance of the start of the ATP.  The State 
     will consult with the Contractor concerning the content of the ATP and 
     the State shall only require such procedures that shall be reasonably 
     necessary to assure the functional capability and installation of the 
     ASM25/25 test.  The State shall inform the Contractor as to the schedule 
     and locations for acceptance testing, which schedule and locations shall 
     be subject to approval by the Contractor, which approval shall not be 
     unreasonably denied or delayed, and the identity of the officials and/or 
     employees responsible to conduct the procedure and/or render all 
     necessary decisions.  Decisions regarding acceptance shall be made at 
     the time or times of administration of testing by such identified 
     officials and/or employees. 

11.  In Exhibit C, section 8.0, of the Contract the schedule of expenditures 
for public education on the top of page 17 is deleted and the following 
schedule is substituted in


                                     - 6 -
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

lieu thereof:

<TABLE>
<S>                                       <C>
"April 1, 1994 - March 31, 1995            $744,124.45 Expended
 April 1, 1995 - March 31, 1996            $426,065.46 Expended
 April 1, 1996 - March 31, 1997            $122,796.46 Expended
 April 1, 1997 - September 30, 1997        $ 70,000.00 Expended (Sept. projected)
 October 1, 1997 - September 30, 1998      $700,000.00
 October 1, 1998 - September 30, 1999      $575,000.00
 October 1, 1999 - September 30, 2000      $162,900.00
 October 1, 2000 - September 30, 2001      $130,000.00
 October 1, 2001 - June 30, 2002           $ 69,113.63
                                           -----------

Total Commitment                         $3,000,000.00"
</TABLE>

On page 18, after the phrase "another portion of the program", insert:

     "including, but not limited to, safety inspections of motor vehicles".

On page 18 after the last paragraph, insert the following paragraph:

     "The amounts set forth above represent the total expenditure commitment 
     by Contractor for public information and education, including any amounts 
     carried over from any contracts between the State and Contractor prior to 
     this Contract." 

12.  In Exhibit D, page 2, section 2.0, of the Contract delete the words "A.  
Using the Intrusive Test:" and delete subparagraphs "B." and "C." in their 
entirety, concerning pressure and purge testing.  After the fee schedule 
on the said page 2, insert the following:

     "Notwithstanding the foregoing fee schedule, on the commencement of 
     ASM25/25 enhanced testing, the fee per test payable by the State to the 
     Contractor under the Contract shall be as follows:


                                     - 7 -

                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>
<TABLE>
<CAPTION>
          CALENDAR YEAR (OR PART THEREOF)             TEST FEE
          -------------------------------             --------
          <S>                                         <C>
                       1998                            $18.50
                       1999                            $18.88
                       2000                            $19.20
                       2001                            $19.52
                       2002                            $19.84
</TABLE>

     If the "gas cap" test, as hereinafter described in this amendment, and 
     specified in the attached Exhibit C, is accepted by the State, the State 
     shall pay Contractor an additional amount of thirty-five cents ($.35) per 
     each such test completed, which Contractor shall pay to Environmental 
     Systems Products, Inc. ("ESP") in accordance with section 10.0 of 
     Exhibit C of the Contract as set forth in paragraph 21 of this amendment 
     and in accordance with the contract between Contractor and ESP."

13.  In Exhibit D, page 5, section 2.2, of the Contract add the following to 
the end: 

     "The parties assume (but the State does not guarantee) there are a 
     minimum of 1,130,000 paid tests to be performed each year of the Contract 
     commencing January 1, 1998.  Notwithstanding the previous sentence, if, 
     and only if, the State exempts any vehicles from testing by legislation, 
     administrative action or otherwise enacted at any time after the effective 
     date of this amendment, and if any such action causes (a) the volume to be 
     less than 1,130,000 for such year


                                     - 8 -
                                                             [Illegible] DMV
                                                             ---------------
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     or (b) a volume that is below 1,130,000 for such year to be reduced 
     even further, then the Contractor is entitled to an equitable payment to 
     compensate it for the reduction in such tests due to such State action.  
     Any such equitable payment shall be made on an annual basis within 
     sixty (60) days of Contractor submitting to the State an invoice for such 
     payment.  The volume of paid tests shall be prorated for any period that 
     is less than one year." 

14.  In Exhibit E, page 11, section 9.0, of the Contract delete the sixth 
paragraph in its entirety, concerning emissions stickers and registration 
denial, and substitute the following in lieu thereof:

     "The State will use its best efforts throughout the term of the Contract 
     to enforce emissions testing compliance by issuing a notice of 
     suspension of the registration of each vehicle which does not either (a) 
     appear for testing in accordance with its assigned schedule or (b) 
     receive a compliant test result within the time framework allowed, and 
     then suspending the registration of such vehicle which does not comply 
     with such notice, such notice of suspension to be based on all data 
     available to the State including data required to be furnished by the 
     Contractor regarding vehicles which do not appear for testing in 
     accordance with their assigned schedule or receive a compliant test 
     result."

15.  In Exhibit E, page 12, section 9.0, of the Contract delete the following 
sentences: 

     "The State will lease a parcel of land in the Bridgeport area to 
     Contractor which


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     will be adequate for construction by Contractor of the Bridgeport area 
     station referenced in Contractor's Technical Specifications.  Contractor 
     shall lease the land from the State for One Dollar ($1.00) per year."

16.  In Exhibit E, section 10.1. A, page 13, of the Contract delete 
"sixty (60) calendar days" and substitute "thirty (30) calendar days" in lieu 
thereof.

     In Exhibit E, section 10.1. A, page 14, of the Contract delete the last 
sentence and substitute:

     "The later of thirty (30) calendar days after receipt of such Notice of 
     Default by the Contractor or the date of termination set forth in such 
     Notice of Default, this Contract shall terminate."

17.  In Exhibit E, section 10.1. A, page 15, of the Contract the following 
shall be inserted after the end of subsection B:

     "C.  The State waives any right it may have to terminate the Contract 
          pursuant to Section 10.1 arising out of a claimed default or any 
          facts that pertain to such claimed default occurring or arising 
          prior to the effective date of this amendment, regardless of 
          whether the State is at the time of this amendment aware of such 
          claimed default or facts.  The State does not waive, however, any 
          claim it may have for damages arising out of a claimed default or 
          any facts that pertain to such claimed default occurring or arising 
          prior to the effective date of this amendment, it being the intent 


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          of this subsection C only for the State to waive its right to 
          terminate the Contract for any such prior claim, not for the 
          State to waive its right to pursue any other remedies it has 
          for such default by Contractor."

18.  In Exhibit E, section 10.2. A, page 15, of the Contract the following 
shall be inserted after "subsection 10.1, above,"

     "the State shall have the option to acquire or cause a subsequent 
     contractor to acquire the VIP facilities and other assets of the VIP 
     program by giving written notice to Contractor not less than thirty (30) 
     days prior to the termination of this Contract.  If the State so 
     exercises such option," 

19.  Exhibit E, section 10.2. B, page 16 and 17, of the Contract shall be 
deleted and replaced by the following:

     "B.  If the State terminates this Contract under subsection 1O.1, above, 
     and the State exercises its option to purchase under subsection 10.2A, 
     above, then on the date of termination, the State or a subsequent 
     contractor shall:

          1.   Pay to the Contractor an amount equal to twenty (20) percent of 
               the values for the land, buildings, equipment, tools and 
               inventory transferred or assigned by the Contractor pursuant to 
               10.2.A.2 and 10.2.A.3, above.  These values shall be those 
               specified in subsections 11.O.B.2, 3, 4, 5, 6 and 7.

          2.   Assume and pay an amount equal to twenty (20) percent of the 


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               value of all obligations of the Contractor under all leases 
               assigned to the State or to a subsequent contractor pursuant to 
               10.2.A.4, above.

          3.   Pay to the Contractor an amount equal to twenty (20) percent of
               the values for the cost as determined using the Last-in, 
               First-Out ("LIFO") inventory valuation method of all supplies 
               and materials conveyed, transferred, and assigned pursuant to 
               10.2.A.5, above.

          4.   Assume all obligations of the Contractor with respect to 
               uncompleted contracts that are commercially reasonable and are 
               assigned pursuant to 10.2.A.6, above.

          5.   The State may, at its option, require the Contractor to incur 
               costs for effecting the orderly transfer of the operations of 
               the inspection facilities.  Such costs may include, but are not 
               limited to, the cost of training State or subsequent contractor 
               personnel in the use of the inspection facilities and equipment 
               and computer software.  In the event that the Contractor incurs 
               costs as herein described, the State shall reimburse the 
               Contractor for such costs."

20.  In Exhibit E, section 18.0 of the Contract beginning on page 31, delete 
"January 1, 1996" near the top of page 32, and substitute "thirty (30) days 
from the date of commencement of ASM 25/25 testing" in lieu thereof.


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21.  The Contract is hereby supplemented by the addition of the following new 
sections in Exhibit C of the Contract:

     "9.0 NETWORK AND FACILITIES

     Contractor shall provide equipment and properly staff and operate a 
network of not less than twenty-five (25) stations.  As provided in paragraph 
6 of this amendment and in Exhibit B to this amendment, the Contractor shall 
not be required to operate a new station in the Town of Stamford, but shall, 
subject to the provisions of Section 3.0 of Exhibit E of the Contract, 
acquire a site and construct and operate a facility in a proximate location 
in Fairfield County, which location shall be made known to the State and 
shall be subject to the approval of the State.  The facility shall contain 
seven (7) lanes unless the parties otherwise agree.

     By no later than December 31, 1998, unless the State agrees in writing 
to extend such time, if the facility is not operational or in substantial 
progress regardless of the reason therefor, the State has the right, subject 
to paragraph 22 of this amendment, to seek equitable adjustment in the test 
fee set forth in paragraph 12 of this amendment, which test fee has been 
agreed to, in part, on the basis of Contractor's operation of a 92 lane 
network, so long as in the determination of such equitable adjustment, all 
network and operation issues relating to incremental expenditures undertaken 
by Contractor in performance of the Contract are taken into account if such 
expenditures arise out of the absence of the Fairfield County facility and/or 
Lanes.


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     When the aforesaid new station in Fairfield County is operational, the 
Contractor shall be permitted to close the existing station in Norwalk.

     "10.0 PURGE AND PRESSURE TESTING: GAS CAP TEST

     The substantially non-intrusive purge and pressure test, as referenced 
in Exhibit D, section 2.0, of the Contract shall not be performed by the 
Contractor, nor shall the State be required to pay the higher test fees for 
the said test as set forth in subsection B of said section.  In addition:

     (a)  The substantially non-intrusive purge and pressure test component 
of the enhanced inspection procedure, as specified in Exhibit D, section 2.0 
of the Contract, was approved for use by the State on August 1, 1994, in 
accordance with a letter of said date from the State Commissioner to 
Envirotest.  The Contractor was directed by the State to acquire 
expeditiously the necessary rights, equipment and capability to perform the 
said test, and pursuant to such direction the Contractor entered into a 
certain license agreement with its subcontractor, ESP.  In accordance with 
the terms of the said agreement, the Contractor incurred certain direct 
charges and expenses, and both the Contractor and its subcontractor incurred 
substantial costs concerning the design, assembly, delivery and installation 
of necessary equipment, which costs have been disclosed to the State.

     In full reimbursement for any and all expenditures and costs directly or 
indirectly related to the substantially non-intrusive purge and pressure test 
as previously


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specified, and for the change in the Contract requirements made by this 
amendment to eliminate the substantially non-intrusive purge and pressure 
test as previously specified, the State agrees to pay to the Contractor the 
sum of five hundred thousand dollars ($500,000) within forty-five (45) days 
of the effective date of this amendment.

     (b)  Contractor shall perform the so-called "gas cap" test component of 
vehicle fuel system vapor integrity, as specified in the attached Exhibit C. 
The Contractor shall perform this test on all vehicles subject to emissions 
inspection requirements in accordance with the above Test Matrix.  The 
Contractor shall administer the "gas cap test for the remainder of the term 
of the Contract and shall commence no later than the start-up date of the ASM 
25/25 enhanced procedure, subject to the provisions of subsection (d) of this 
section.

     (c)  The payment by the State of the amount as stated above in 
subsection (a) of this section is expressly conditioned on (i) the 
presentation to the State and approval by the State of an amended, executed 
license agreement with the above-mentioned subcontractor, evidencing the 
right of the Contractor to use the equipment and technology for the "gas cap" 
test specified in the attached Exhibit C, (ii) the successful completion of 
an acceptance test procedure and approval by the State to implement the "gas 
cap" test, and (iii) the furnishing to the State by ESP of a release 
releasing the State from any and all actions, suits, or claims of any kind, 
whether at law or in equity in any forum which ESP may have in connection 
with the Contract, the license


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agreement (both original and amended) and/or otherwise.  Nothing herein shall 
be construed as an admission by the State of any liability to ESP.

     (d)  If the "gas cap" test is implemented prior to the start-up date of 
the full ASM 25/25 procedure, then as compensation for fully performing the 
test the State shall begin payment to Contractor of the amount of thirty-five 
cents ($.35) per each such test completed as provided above in paragraph 12 
of this amendment, which Contractor shall pay to ESP in accordance with the 
contract between Contractor and ESP.

     11.0 WAIT TIME SYSTEM AND PERFORMANCE STANDARD

     The Contractor shall install and utilize a system and methodology for 
the accurate calculation of wait times at stations, based, in part, on an 
algorithm assigning an arrival time to each vehicle for which actual time is 
not captured.  Said system and method is more particularly described in a 
letter to Mr. Peter Rosso of the State from Mr. Jeffrey A. Barth of the 
Contractor, dated June 19, 1996, attached as Exhibit D. In accordance with 
the attached Exhibit D and notwithstanding said Exhibit referring to a 
different test procedure, the Contractor represents and warrants that the 
method provides accurate calculation of wait times for the purpose of 
contract compliance and enforcement, including, without limitation, the 
Commissioner's enforcement rights under section 18, Exhibit E of the Contract 
and the assessment of liquidated damages, under section 19.A, Exhibit E of 
the Contract.  Contractor shall install the system to be utilized and make it 
fully operational at every station on the start date of ASM 25/25 testing, and


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thereafter for the remaining term of the Contract.  The wait time system 
shall be subject to an acceptance test procedure as set forth above.

     12.0 START-UP OF ENHANCED TESTING

     As used in this section 12.0, the phrase "Lane functionality" means 
demonstration of the functional operation and interaction of Lane emissions 
inspection equipment and the corresponding data processing hardware and 
software system that supports emissions testing.  As used in this section 
12.0, the phrase "host functionality" means demonstration of the functional 
operation of the separate and distinct set of hardware and software that is 
the central site for data collection, control and processing for the entire 
network of stations and Lanes.

     Contractor shall be prepared for lane and host functionality acceptance 
testing of the ASM 25/25 procedure no later than thirty (30) days prior to 
the start of the system wide, full function performance of the ASM25/25 test 
for the public.  As soon as the State accepts, in writing, the lane and host 
functionality, it may direct the Contractor to start system wide, full 
function performance of the ASM 25/25 test for the public as of a date 
certain, which date shall not be earlier than January 1, 1998.  If the 
Contractor fails to commence such system-wide ASM 25/25 testing in each of 
the Lanes as of the said date certain, the Contractor shall pay as liquidated 
damages, in accordance with the provisions of the introductory paragraph of 
Section 19.0 and the provisions of Section 19.0B of Exhibit E of the 
Contract, the sum of six hundred and fifty dollars


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($650.00) per Lane per day for each day after such date certain that any such 
Lane is not performing ASM 25/25 testing.

     13.0 SERVICE TO THE PUBLIC

     For the purposes of Exhibit C, section 11.0, of the Contract, (as 
contained in paragraph 21 of this amendment) the station and all Lanes at:

     (a)  Taftville/Norwich shall be excluded from all wait time calculations 
and standards for so long as safety inspections are performed by the 
Contractor at that station; and

     (b)  Darien and Norwalk shall be excluded from all wait time 
calculations and standards until such time as the seven (7) lane facility in 
Fairfield County, which has not yet been identified, shall be operational.  
If, despite good faith efforts by Contractor, on December 31, 1998 there is 
no property in Fairfield County that is in the process of being permitted or 
zoned or has received its permits or been rezoned for a seven (7) lane 
facility, the parties agree to then negotiate in good faith a mutually 
acceptable amended wait time calculation and standard to be applicable to the 
Norwalk and Darien stations.  If no such agreement is reached between the 
parties, then the matter shall be resolved in accordance with the provisions 
of Section 12.0 of Exhibit E of the Contract.

     These exclusions shall not relieve the Contractor of responsibility to 
continue to use reasonable efforts to avoid habitual and excessive delays at 
the above-mentioned


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facilities; to maintain an operational wait time system at the facilities, in 
accordance with Exhibit C, section 11.0 of the Contract (as contained in 
paragraph 21 of this amendment) to comply with section 3.K.6 of the Technical 
Specifications; and to keep the public entering the facilities informed as to 
estimated wait times, as provided by the Contract.  With respect to all other 
facilities and Lanes, the provisions of Exhibit E, sections 18.0 and 19.0, of 
the Contract shall remain in full force and effect.

     14.0 DATA PROCESSING SYSTEM

     Contractor shall furnish and maintain an updated software application 
and support for data access and reporting of all vehicle test record (VTR) 
and waiver file information, as well as the following data: maintenance, 
repair, quality control and quality assurance.  In addition to the data 
elements currently supplied on the weekly report, a/k/a, the "state tape", 
Contractor shall include the additional data elements stated in the attached 
Exhibit E.

     Within thirty (30) days after the effective date of this Amendment, 
Contractor and the State shall agree to a schedule for the State to provide 
to Contractor on a biweekly basis additions, deletions and modifications to 
the vehicle registration data base.

     In order for the State to carry out its responsibility to suspend motor 
vehicle registrations, as provided in paragraph 14 of this amendment, with 
respect to the owners of vehicles who do not appear for testing as scheduled 
or who do not receive a compliant test result within the time frame allowed, 
the Contractor will maintain a


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computerized record of all vehicles subject to program testing, on magnetic 
tape or other computer media as may be agreed to by the State and Contractor. 
This record will include test due dates.  Any vehicle which does not 
receive a compliant test result within the time frame allowed will be 
"flagged." A current and updated list of these non-compliant vehicles will 
be provided to the State not less than once every two weeks by magnetic tape 
or other computer media.

     15.0 PAYMENT FOR CONVERSION TO ALTERNATIVE ENHANCED TEST

     Any reimbursement which the Contractor may claim for costs or 
reimbursement attributable to developing, or the conversion to, any 
alternative enhanced test shall be deemed included within the test fees 
payable in accordance with Exhibit C, section 10.0 of the Contract (as 
contained in paragraph 21 of this amendment).

     16.0 CONTRACTOR STAFFING LEVELS

     Contractor shall under the terms of the Contract and the requirements of 
Section 14-164c (e)(B) of the Connecticut General Statutes, maintain at all 
times adequate staffing levels, including necessary management and 
supervisory personnel, to assure the timely performance of all 
responsibilities of the Contract.

     17.0 PROVISION OF SPACE FOR REGISTRATION TRANSACTIONS

     Within thirty (30) days after the effective date of this amendment, the 
Contractor shall present a plan to the State concerning the assignment of 
office space in designated emissions stations for the purpose of conducting 
transactions with the public


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relating to vehicle registrations and renewals.  The plan shall include a 
recommendation by the Contractor concerning the identification of the 
stations which are most suitable for this purpose.  The parties shall discuss 
any start-date or dates for the commencement of any of such transactions.  
The State shall be responsible for the cost of equipment and any furnishings 
which the State may desire to be used at each designated facility.

     18.0 FUTURE PURGE AND PRESSURE TESTING: OTHER NEW TEST PROCEDURES

     If the Federal Environmental Protection Agency approves and advises the 
performance of purge and pressure testing, or the performance of any 
modification or variation of the said tests, or the performance of any test 
procedure or change in test procedure for the inspection of motor vehicles 
not specified under the provisions of this amendment, and in the event the 
State of Connecticut, Department of Environmental Protection advises the need 
to perform any such test or tests, the Contractor shall implement any such 
change or changes upon reasonable notice by the State, based upon the change 
order provisions of section 15.0 of Exhibit E of the Contract.

     19.0 GUARANTEE OF EQUIVALENT ENHANCED TESTING PERFORMANCE

     Not earlier than January 1, 2000, Contractor agrees to take such 
Alternative Measures, as defined in this section 19.0, selected, at 
Contractor's sole election, from among those specified in this
section 19.0 as are necessary to supply the SIP Credit Amount,
as defined in this section 19.0, within six (6) months after
January 1, 2000.


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     The SIP credit amount ("SIP Credit Amount") shall be defined as that 
amount of tons of hydrocarbon per year up to no more than 744 tons of 
hydrocarbon per year (less the credit set forth in the last paragraph of this 
section 19.0), which in the judgment of the State, either in combination 
with, and/or in whole or partial substitution for, other control measures, is 
necessary to meet the State's obligation for hydrocarbon emission reductions 
in the State Implementation Plan or any proposed revision thereto.

     The following are the alternative measures ("Alternative Measures"):

     (a)  Implementation of as much of the remote sensing program as is 
necessary to provide the SIP Credit Amount.

     (b)  Supply the SIP Credit Amount in any other way allowed under EPA rules
or guidelines or otherwise acceptable to EPA (for example, purchase of emissions
reduction credit).

     (c)  Implement the CT93 test method, or other test method chosen by 
Contractor which is acceptable to the State, as necessary to provide the SIP 
Credit Amount.

     Contractor will receive a credit against the SIP Credit Amount as a 
result of having performed the ASM 25/25 test on vehicles of model years 1980 
and earlier.  Such credit will be determined by the State through the use of 
the most current EPA MOBILE model.


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     20.0 TESTING FOR NOx VERSUS NO

     Contractor will not test for NOx but will commence testing for NO on the 
start-date for the ASM 25/25 test in accordance with the requirements for 
the ASM25/25 as set forth in the EPA Acceleration Simulation Mode Test 
Procedure, Emission Standards, Quality Control Requirements, and Equipment 
Specifications - Technical Guidance (EPA-AA-RSPD-IM-96-2) July 1996.

     21.0 ADDITIONAL SERVICES

     To the extent not prohibited by law, the Contractor may, subject to the 
prior approval of the State Representative, provide to the Customer 
additional services, provided, however, that such services are offered on a 
voluntary basis and do not cause the Contractor to fail to meet its service 
to the public requirements or any other obligations of Contractor under the 
Contract.

     22.0 INSPECTORS AND INSPECTOR FUNCTIONS

     As of January 1, 1998, the functions that have been performed by 
inspectors for the State, who are working in the facilities, shall in 
accordance with this Section and the revised Technical Specifications, 
unless otherwise provided herein, be performed by Contractor at all 
facilities during working hours:

     (a)  EMOO CHECK: verify emissions testing status and test schedule if 
vehicle arrives with no emissions sticker or sticker with questionable 
validity;

     (b)  REG CHECK: verify proper registration of vehicle if vehicle arrives 
with no


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registration or registration is questionable and refer improperly registered 
vehicles to a State DMV office;

     (c)  WINDSHIELD REPLACEMENT STICKER: provide and affix replacement 
sticker where windshield has been replaced or a sticker has been stolen or is 
missing after verifying previous test record documentation and registration 
status;

     (d)  PROGRAM CAR VIN VERIFICATION: verify VIN after dealer safety 
inspection where vehicle part of dealer lease program, is less than 2 years 
old, has less than 24,000 miles, and make of vehicle is same as that of 
franchise dealer;

     (e)  LATE FEE WAIVER: determine waiver of late fee based on military, 
medical, mechanical and out-of-state exemptions only;

     (f)  EMISSIONS WARNING TICKETS: tell vehicle owner to follow directions 
on back of warning form;

     (g)  AFFIDAVIT OF EMISSIONS COMPLIANCE: when the car needs to be 
registered and there is no VIR and owner needs proof that the car has passed 
emissions, owners are to be sent to Wethersfield DMV office or other places 
as directed by the DMV.

     (h)  ON-LINE VIN VERIFICATION: verification of VIN on vehicles that are 
from out of state and have been inspected by a dealer;

     (i)  NEW VEHICLE STICKERS: issuing of new vehicle emissions stickers to 
replace the stickers issued on purchase of car;

     (j)  EXEMPT STICKERS: issuance of exempt stickers on request of vehicle 
owners for


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vehicles over 25 years old, weighing over 10,000 pounds, or otherwise exempt 
from emissions test requirements; and

     (k)  ISSUING WAIVERS: for vehicles failing twice, determine validity and 
cost of repairs done, determine visually the integrity of the vehicle's 
emission system and issue waivers when appropriate, including the issuance of 
waiver stickers.

     All costs, including, but not limited to, equipment costs, associated 
with the performance of the above-listed functions shall be the 
responsibility of Contractor.

     For the performance of the above listed functions, the State shall pay 
Contractor the following amounts:

<TABLE>
<CAPTION>
          CALENDAR YEAR (OR PART THEREOF)            AMOUNT PAYABLE
          -------------------------------            --------------
          <S>                                        <C>
                         1998                           $      0
                         1999                           $515,000
                         2000                           $530,450
                         2001                           $546,364
          January 1 2002 through June 30, 2002          $281,377
</TABLE>

Each such amount shall be due and payable not later than June 30th of the 
calendar year in which the amount is earned.

     23.0 INSPECTOR TRAINING

     As part of the process of utilizing the ASM25/25 test procedure, the 
inspector lane training program will be 30 hours in duration in accordance 
with the plan attached


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as Exhibit F, which Exhibit and this section 23.0 will be deemed to modify 
the Technical Specifications.

     Each inspector performing the waiver function set forth in Exhibit C, 
section 22.0(k) of the Contract (as contained in paragraph 21 of this 
amendment) shall be trained in accordance with the plan attached as Exhibit G.
It is the intent of this plan that Contractor will have certain of its 
employees trained to perform the functions required, who shall then in turn 
be responsible for training the employees of Contractor who are to be perform 
such function.

     24.0 MECHANICS HOTLINE

     The full cost of the mechanics hotline and of the providing of such 
service as set forth in the Technical Specifications shall be borne through a 
use fee paid by the mechanics who use the hotline.  Contractor anticipates 
subcontracting this entire function to an independent third party, and if it 
does so, such use fee charged to the mechanics shall include no markup by 
Contractor.  The subcontract will be based on good faith negotiations between 
Contractor and the subcontractor with a view toward achieving a quality 
service at the lowest reasonable cost.

     If any portion of such function is not subcontracted, the use fee 
charged to the mechanics shall be only the actual costs without any markup 
for profit or overhead.  In such event the State shall have the right to 
audit the relevant books and records of Contractor at reasonable times with 
reasonable notice.  If the State is not satisfied that


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there is no markup for profit or overhead as a result of such audit, then 
the State Representative may direct an appropriate change to insure that 
Contractor is not making any profit or overhead and may seek other relief 
that is warranted under the circumstances.

22.  All terms of this amendment shall apply prospectively from the effective 
date hereof, and shall have no effect whatsoever on the obligations of 
performance, rights, claims or liabilities of the parties to one another 
arising under the Contract before the said effective date.  All provisions of 
the Contract not specifically amended or superseded by the provisions of this 
amendment shall remain in full force and effect.  The parties acknowledge 
that there are claims between them, which are the subject of pending 
arbitration.  Neither party relinquishes any rights to claim reimbursement or 
other remuneration with respect to such claims except for the claim by 
Contractor regarding fleet waivers issued prior to the date of this amendment 
as set forth in paragraph 5 of this amendment.

23.  This amendment shall not become effective unless and until it is 
approved by the Office of the Attorney General of the State of Connecticut.


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[LOGO]  ENVIROTEST                                               [LOGO]
        SYSTEMS                                               CONNECTICUT
                                                            WORKING TOGETHER
                                                                  FOR 
                                                               CLEAN AIR

- -------------------------------------------------------------------------------
                          ASM2525 TEST PROCEDURES 
- -------------------------------------------------------------------------------


                                 EXHIBIT A




<PAGE>

[LOGO]  ENVIROTEST                                               [LOGO]
        SYSTEMS                                               CONNECTICUT
                                                            WORKING TOGETHER
                                                                  FOR 
                                                               CLEAN AIR

- -------------------------------------------------------------------------------
                       ASM TESTING PROCESS FOR CTVIP
- -------------------------------------------------------------------------------


The inspection lane consists of three inspection positions. Each lane is 
capable of testing diesel vehicles, one opacity meter is utilized for every 
two lanes. The inspection process will be conducted according to written 
Standard Operating Procedures (SOP).  The SOP defines the sequence of 
inspection events, the pass/fail/rejection determination for visual 
inspections, basic equipment operating processes, fee collection procedures, 
handling and security of stickers, certificates and forms and customer 
relations. The detailed lane procedures, as well as inspector training 
material will clearly state the conditions which will make a vehicle 
unacceptable for testing.  For example, no vehicles will be tested if 
unregistered, carrying explosive materials, leaking fluids, gross exhaust 
leaks, excessive smoke or any other situation which would make a vehicle 
unsafe for testing.  One exception would be if a vehicle comes to us with 
under inflated tires, Envirotest will provide tire inflation equipment at 
position 1 so that the tires could be inflated to 35 p.s.i. to make the 
vehicle safe to test.  The test procedures as they relate to the inspection 
process for each position are summarized below:

     As the vehicle enters the lane, it is visually inspected for conditions 
     that would prevent a vehicle from receiving a valid and safe inspection 
     (overheating, gross fluid leaks, etc.)

     The motorist is then instructed to secure the vehicle in park/neutral 
     and to set the parking brake

     The inspector checks for tampering (gas cap on all vehicles & catalytic 
     converters on 1981 & newer vehicles)

     The inspector the validates the documents to the vehicle

     When the vehicle to be tested is a rear wheel drive vehicle, the customer 
     is informed that they may drive the vehicle an the dyne and are told to 
     remain in position 1 until the inspector has completed data entry.  Then 
     the driver is guided to position 2.


                                                                             1
<PAGE>

     If the vehicle is front wheel drive the inspector then has the customer(s)
     exit the vehicle and escorts the customer(s) to the waiting booth and 
     enters the data at the position 1 p.c.

     If any animals are with the customer, the customer is made to exit the 
     building and told to wait in a designated area until the inspector calls 
     for them

     At position 2, the vehicle is secured, and centered on the dyne and a 
     cooling fan is put in place

     The test sequence is begun and the vehicle is then driven on a drive trace

     When the vehicle is driven on the drive trace, exhaust plume is taken into 
     the analyzers and is analyzed for pollutants on pass/fail criteria 
     established by the p.c.

     When the drive trace is completed the test equipment is removed and the 
     vehicle is driven to position 3

     At position 3 the vehicle is secured and a gas cap leak test is performed

     Upon gas cap leak test results, the inspector is prompted to collect the 
     appropriate test fee and late fee (if applicable) and point out the fee 
     to the customer so there are no discrepancies

     The Vehicle Inspection Report (VIR) is generated and the proper sticker is
     assembled

     The VIR is then given to the customer along with any fail
     brochures/repair data that are required and the sticker is affixed to the 
     windshield with a squeegee

     When the customer is satisfied they are given a farewell and asked to exit
     the inspection lane


                                                                             2
<PAGE>

[LOGO]  ENVIROTEST                                               [LOGO]
        SYSTEMS                                               CONNECTICUT
                                                            WORKING TOGETHER
                                                                  FOR 
                                                               CLEAN AIR

- -------------------------------------------------------------------------------
                      ASM EMISSIONS TESTING PROCEDURES
- -------------------------------------------------------------------------------

                                POSITION #1
                                INSPECTOR A

Perform Pretest safety checks: Fuel leaks, excessive fluid leaks, condition of
tires or other obvious safety hazards
Stop vehicle with the back end and tailpipe OUTSIDE of building
Greet customer (leave customer in vehicle until proper step)
Secure vehicle, (Park, Neutral, Parking Brake) IGNITION ON (Request gas cap
door opened or unlocked)
Identify which vehicles need to be tested (most often identified by IPER, 
registration and / or fuel type)
Check for gas cap presence, catalytic converter presence 
VERIFY DOCUMENTS TO VEHICLES ENTIRE VIN (registration, previous Fail VIR or 
title) & THE VEHICLE PLATES
Actual odometer reading (thousands), sticker expiration from existing sticker
on vehicle & record information
Notify customer of test fee and late fee, if applicable
If the vehicle is rear wheel drive the driver is informed that they may drive 
the vehicle on the dyne and are instructed to remain in the vehicle while the 
inspector completes data entry
If the vehicle is front wheel drive, the driver is instructed to turn the 
ignition off leave the window open and take with them any valuables in the 
vehicle
Escort customer into booth (video, pamphlets, observe test, stay in booth until 
inspector calls for them)
Direct customers with animals to remove them outside the station (LEADS & 
CHOKERS ARE PROVIDED)
Data entry (vehicle information from registration entered at Position 1 PC):

     VIN
     Mileage
     IPER information
     Test sequence number
     License plate
     State vehicle is from
     Class code
     Make
     Model


                                                                             1
<PAGE>

     Year
     Vehicle type
     Fuel type
     Weight
     Cylinders
     Engine displacement
     Transmission
     Drive wheels
     Traction control (y/n)
     Wheel base (4WD)
     Customer type
     Employee number & p.i.n.


Gas cap & catalytic converter screen
Proceed to position 3 to perform gas cap leak test
Initiate pressure test
Remove gas cap equipment & re-install gas cap when leak test is complete
Point out fee due screen to customer
Collect fee & enter fee data
Escort customer back to vehicle
Scrape off sticker and clean windshield
Enter sticker data & assemble sticker
Print VIR & obtain fail brochures & repair lists if applicable
Apply sticker to vehicle w/squeegee
Present p/f VIR to customer w/brief explanation
Proceed to position 1


                                                                             2
<PAGE>

                                  INSPECTOR B

Walk to position 1 Enter vehicle
Drive to Position 2 and center vehicle on dyne
Verify vehicle on screen is vehicle you are in
Lower lift w/clicker
Secure vehicle (park/neutral, parking brake) exit vehicle
Chock non - drive wheel, front & back
Position probe in exhaust pipe using dual adapter if applicable
Enter vehicle
Remove parking brake if applicable & center vehicle on rollers
Begin test w/clicker
Drive trace
Stop vehicle when prompted
Secure vehicle
Remove test equipment (probe, chocks, etc,)
Enter vehicle and move to position 3
Secure vehicle and exit
Return to position 1


                                                                             3


<PAGE>


                                  EXHIBIT B
                       Assignment of Emissions Sites
<TABLE>
<CAPTION>

 Site No.          Address               Number of Lanes
- --------------------------------------------------------
<S>         <C>                          <C>
   1        Norwalk Station*                 2
            6 Willard Road
            Norwalk, CT 06851

   2        Danbury Station                  5
            14 Plumtrees Road
            Danbury, CT 06810

   3        Waterbury Station                4
            2038 Thomaston Avenue
            Waterbury, CT 06720

   4        Winsted Station                  2
            154 Torrington/Winsted Rd.
            Winchester, CT 06098

   5        Stratford Station                5
            885 Woodend Road
            Stratford, CT 06497

   6        North Haven Station              7
            25 Stillman Road
            North Haven, CT 06851

   7        Willington Station               2
            81 River Road
            Willington, CT 06279

   8        Farmington Station               4
            1536 New Britain Avenue
            Farmington, CT 06032

   9        Middletown Station               2
            1885 S. Main St. (Rt. 17)
            Middletown, CT 06457

  10        Old Saybrook Station             2
            5 Custom Park Drive
            Old Saybrook, CT 06475

  11        Brooklyn Emissions Station       2
            15 South Main Street
            Brooklyn, CT 06234

  12        East Hartford Station            4
            160 Tolland Turnpike
            East Hartford, CT 06108

  13        Groton Station                   2
            479 Gold Star Hwy. (Rt. 184)
            Groton, CT 06340
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

 Site No.          Address               Number of Lanes
- --------------------------------------------------------
<S>         <C>                          <C>
  14        East Windsor Station              3
            North Road (Rt. 140) Road
            East Windsor, CT 06088

  15        Taftville/Norwich Station         2
            520 Norwich Avenue
            Taftville, CT 06380

  16        Bloomfield Station                3
            110 Granby Street
            Bloomfield, CT 06002

  17        Newington Station                 4
            261 Pascone Place
            Newington, CT 06111

  18        Darien Station                    5
            I-95 Southbound
            Darien, CT 06820

  19        Beacon Falls Station              2
            37 Lancaster Drive
            Beacon Falls, CT 06403

  20        Bridgeport Station                7
            44 River Street
            Bridgeport, CT 06604

  21        Thomaston Station                 3
            401 McMahon Drive
            Thomaston, CT 06787

  22        Manchester Station                5
            161 Sheldon Road
            Manchester, CT 06045

  23        Southington Station               5
            64 Robert Porter Road
            Southington, CT 06489

  24        East Lyme Station                 3
            15 Capitol Drive
            East Lyme, CT 06333

  25        North Windham Station             2
            4 Commerce Drive
            North Windham, CT 06256

  26        Norwalk II Station                5-7
            TBD
</TABLE>
*Site #1 will be removed from the network if site #26 is constructed with
 seven lanes

<PAGE>

                               EXHIBIT C

                               ESP TESTS

ESP EVAPORATIVE SYSTEM INTEGRITY (PRESSURE) TEST

     This test checks the integrity of the gas cap on a special test rig. The 
test is covered by Patent Application No. 08/059,630, filed May 10, 1993, 
entitled "Automated Testing of Fuel Vehicle Caps."

     The ESP System will enable performance of the Evaporative System 
Integrity Test in a substantially non-intrusive manner, as follows:

     (a)  The gas cap is removed from the vehicle and placed on a cap test 
rig which is comprised of adaptors for different types of gas caps. 
Compressed air is applied to the gas cap and to an air reservoir until the 
test level (28 inches of water) is reached. Then the air supply is 
automatically closed, and the ESP Equipment monitors the pressure decay for 
approximately 15 seconds. The pressure decay measurements can be displayed 
in graph and/or numerical form on a computer monitor and/or on a computer 
print out.

REQUIRED INTERFACES

     The ESP System requires mechanical and electrical interfaces to the test 
lane system, as follows:

     (a) compressed air supply for the gas gap test;
     (b) 115 VAC 60 Hz for the ESP Equipment;
     (c) RS232C interface between the test lane system and the
         ESP Equipment; and
     (d) mutually developed evaporative system displays and prompts
         on the test lane monitors.


<PAGE>

[LOGO] Envirotest                  EXHIBIT D         Envirotest Systems 
       Systems
                                                     60A Weston Street
                                                     Hartford, Connecticut 06120
June 19, 1996                                        203/278-9203
                                                     FAX: 203/278-9206


Mr. Peter Rosso
Director of Emissions
Department of Motor Vehicles
60 State Street
Wethersfield, CT 06109

Dear Peter:

Let me take this opportunity to express our sincere appreciation to you and 
the many people in the Department who have sent flowers, wrote letters and 
made calls inquiring as to the health of Larry Taylor.  It was a display of 
kindness that may never make the HARTFORD COURANT, but was far more important 
to all of us here than any negotiation can or will ever be and we thank you 
and your colleagues for their genuine concern.

We appreciate the opportunity to provide the Department of Motor Vehicles 
with the following responses to the outstanding issues as discussed in our 
negotiations on Thursday, June 6, 1996.

1.  WAIT TIMES

ISSUE:        The Department has requested a description of the LPR system, an
              analysis of the formula we are recommending for the determination
              of wait time performance and a schedule for implementation.

RESPONSE:     The LPR system proposed for the CT93 program is no different than
              the LPR system proposed for the I/M 240 system except for the
              modifications the Department is requesting to assign estimated
              wait times.

As originally designed, the I/M 240 LPR system met all the U.S. EPA 
requirements to provide second-chance testing for vehicles failing the 
initial test that had waited more than 20 minutes in the queue.  To meet the 
EPA guidelines, unmatched plates were assumed to be waiting 20 minutes and 
received a second chance.  However, matched plates with less than 20 minutes 
in queue were not given a second-chance test.  One of the new improvements to 
the CT93 test is that every vehicle which fails the initial test will now be 
provided an automatic second-chance test regardless of the amount of time 
spent waiting in the queue.  The new test will provide additional 
preconditioning regimen for vehicles failing the initial test a more fair and 
equitable system.

The Department indicated its desire to have the ability to assign specific 
wait times for every vehicle.  To determine if we could meet the Department's 
objective, an extensive analysis was performed on more than 6,400 vehicle test 
records in Colorado.  This is applicable because the equipment is identical 
to that installed in Connecticut.

<PAGE>

Side-by-side testing comparing the LPR data collection system to that of the 
manual (ticket-taking) data collection system was performed. The study used 
manual entry of arrival and test times at Position One from time-stamped 
tickets distributed at the same location as the LPR, Data sets were collected 
and analyzed during both peak and off-peak traffic flow conditions.  All data 
points were then refined to calculate the average two hourly wait times as 
determined by the LPR and time-stamped tickets.

The results of this analysis confirmed an extremely high correlation between 
the manual data collection systems, and the LPR data collection system.  A 
scatter plot of the two systems average wait time revealed a good linear 
relationship with a slope where the LPR system time = 1.0221 x (the manual 
data collection system time) the fit was reflected in an R SQUARED
value = 0.9125. The data comparison actually revealed, on average,
the LPR system had slightly HIGHER estimates of wait times than the
manual ticket system.  Importantly, the scatter plot of the differences
in times versus the percentage of plates matched also confirmed no
apparent degradation in the accuracy of the LPR estimated times even
if the capture rate dropped to 35% (current matches in Connecticut exceed 52%).

Based on these findings the State of Colorado accepted the LPR data 
collection system to determine the overall wait times in order to assess 
station performance in light of contract requirements.

To further support the conclusions from the Colorado test, we conducted an 
analysis on the records of 111,134 vehicle tests performed last month in 
Connecticut. More than one out of every two records (58,383 vehicles) 
representing 53% of the total monthly testing population, were confirmed with 
direct plate matches with specific wait time entries.  Another 25% (28,214 
vehicles) were captured within five minutes of an actual plate match.

Per the Department's request a limited analysis was initiated in one station 
observing LPR performance during peak hours (11 a.m. to 2 p.m.) which 
revealed 49% percent of the vehicles were matched with the LPR data, another 
41% were tested within five minutes of the previous match. Further, an 
additional 4% were tested within 5-7 minutes of a match and 3% were tested 
within 7-9 minutes of a match.

While not complete, this analysis of Envirotest's procedure to capture wait 
times of vehicles with unmatched plates was based on applying a five minute 
algorithm to the begin test time of the vehicle and matching it against the 
LPR time from the previous vehicle whose plate had been matched.  This 
resulted in a value very close to the actual wait time of that unmatched 
vehicle.

The match rate percentages cited here are more dependent on the placement of 
the plate by vehicle owner than on the technology being utilized.  Our 
observations have revealed that when the plate is not obstructed and placed 
in proper (not windows) location, the match rate for the LPR is significantly 
higher (approximately 84-85%).  While there were no efforts during this 
period to enhance LPR performance, the Connecticut results were well within 
the accuracy range evidenced by the Colorado study.

<PAGE>

RECOMMENDATION

Based on the Colorado study and the Connecticut data from more than 111,000 
test records, Envirotest would recommend contract wait time penalties be 
determined using the station wait time reports from the LPR data analysis now 
available on the Connecticut host.  This same data can now be displayed, real 
time, on the DMV terminals connected to the Envirotest host.

Envirotest would provide the following with CT93:

- -    The original I/M 240 system wait time entry on the VIR will be in place 
     for the CT93 start-up.

- -    The matched wait times will be used to okay all contractual penalties.  
     On an hourly basis actual matched wait times will be averaged and 
     applied to all vehicles tested during that hour.  That is, if the 
     average wait time for the matched vehicles is 50 minutes for a period, 
     then that time shall be applied to all vehicles tested at that location 
     for that period for the purpose of applying a performance penalty.

- -    Within 60 days after start-up, we will provide a modification for the 
     state to review and test. (We are currently analyzing the seven and nine 
     minute arrival data to determine what gains might be made by modifying 
     the algorithm).  This modification will change the VIR information to 
     include wait times based upon calculations which use the LPR time from 
     an immediately previous matched test.  Hence, like the I/M 240 test, if 
     there is a direct match on the vehicle it will show on the VIR from the 
     inception of the program.  Envirotest will develop an alternative method 
     for the Department's review and approval to apply when no match is made.

- -    The estimated time based on a previous LPR matched reading will be 
     denoted on the VIR with whatever symbol the Department wishes.

- -    Vehicles for which no actual or estimated match can be calculated will 
     be noted with an appropriate message in the wait time field.

Envirotest believes this proposed method provides accurate measurement for 
the purpose of contract penalty enforcement.

2.   SAFETY & EMISSIONS IDENTIFICATION

ISSUE:        The Department requested Envirotest to clearly identify lanes
              being used for combined safety and emissions testing.

RESPONSE:     Envirotest agrees to clearly identify lanes being used for the
              combined safety and emissions lanes with signage in the queue and
              on the facility.

3.   SAFETY AND EMISSIONS TESTING

ISSUE:        The Department indicated it does not want emissions-only tests
              being performed in the combined safety and emissions lane(s)
              unless there are no vehicles waiting for safety tests to be
              performed.  Further, it is the Department's position that if
              Envirotest agreed to this condition there would be no calculation
              of the combined safety and emissions lane into the wait time 
              calculation.

<PAGE>

                                   EXHIBIT E

                                ADDITIONAL DATA
<TABLE>
<CAPTION>

Description                                Mnemonic
- -----------                                --------
<S>                                        <C>
Special test indicator                     V_TEST
Fee Override Flag                          V_LATE_OVER
Record Type                                V_WAIV_STATUS
Emissions/Purge Requirements               V_EM_PU_REQ
Composite HC reading                       V_HC
Composite CO reading                       V_CO
Composite C02 reading                      V_CO2
Composite NO reading                       V_NO
Opacity reading                            V_OPAC
Opacity test mode                          V_OPAC_MODE

</TABLE>

<PAGE>

                                   EXHTBIT F

                     PROPOSED ASM EMISSIONS TRAINING PLAN
                              FOR LANE INSPECTORS


WEEK #1
- -------

Training completed in station by station management.  Twenty total hours 
based on four hours per day, five days a week.  Plan includes orientation

                    Day #1
                    ------
                 -  Tour of station
                 -  Introduction to staff,
                 -  Completion of appropriate H.R. forms,
                 -  Review of dress code
                 -  Review of safety equipment,
                 -  Review of job safety i.e. lane safety equipment hazards, 
                    proper lifting techniques and use of a portable fire 
                    extinguisher.
                 -  Review of pay scale and performance appraisal
                 -  Review of job description/requirements
                 -  Review clock procedures


                    Days #2-5
                    ---------
                 -  Introduction to station trainer
                 -  Review of safety rules
                 -  Clean as you go standards
                 -  Introductioa to employees
                 -  Lane Operation
                 -  Type of test
                 -  Introduction to cash procedures
                 -  Introduction to verification of Drive & Transmissions
                 -  Introduction to computer and entrys
                 -  Introduction to dynamometer and trainiag


<PAGE>

WEEK #2
- -------

Training completed in station by program emissions trainer.  Ten total hours 
of training, based on five hours per day, two days a week.

                 -  Operating Procedures of gas
                 -  Principles of Operating a Gas Analyzer
                 -  Fire Control
                 -  First Aid - Emergency Aid
                 -  Cash
                 -  Gas Cap
                 -  Customer Service
                 -  Customer Awareness
                 -  Emission Theory
                 -  Lane Safety
                 -  Lane Control



<PAGE>
                                   EXHIBIT G
                              INSPECTOR TRAINING

[LOGO]  ENVIROTEST                                               [LOGO]
        SYSTEMS                                               CONNECTICUT
                                                            WORKING TOGETHER
                                                                  FOR 
                                                               CLEAN AIR

- -------------------------------------------------------------------------------
                            ENVIROTEST TRAINING
- -------------------------------------------------------------------------------

This training outline will be used for the training of Station Managers, 
Assistant Station Managers and Supervisory Personnel (Lead Lane personnel).  
Training will be provided by Envirotest to assume the role and completion of 
all duties of the DMV Inspectors at each of the inspection facilities.  Each 
Station Management Team will undergo training classes focusing on the 
policies and procedures associated with these new contract activities 
including the following:
          Issuing New Vehicle Stickers
          Issuing Exempt Stickers
          Emissions Waivers / Denials
Guidelines and procedures for these activities have been established and must 
be followed by all personnel involved in the process.  The forms associated 
with these new tasks will be new to all personnel and must be correctly 
filled out for sticker tractability.

The guidelines to be utilized for this training are as follows: 
NEW VEHICLE STICKERS- These stickers will be provided for vehicles which are 
less than 1 year old and have not received a sticker in the mail with their 
permanent registration.  A registration check may be required to verify the 
transaction date of the registration for that vehicle.  A registration check 
may also be required on vehicles that are less than 1 year old and have had 
their windshield replaced.  Envirotest will not use a replacement sticker for 
these vehicles because there will be no previous test record.  When a 
replacement sticker has been issued, Envirotest personnel will complete a 
paperwork log. 

Training for New Vehicle Stickers shall include:
          Explanation of New Vehicle Stickers
          When New Vehicle Stickers are to be used
          What documentation is necessary to apply for a New Vehicle Sticker
          How to complete Envirotest's documentation and log form

EXEMPT STICKERS- These stickers will be used for vehicles which fall into the 
exempt categories as defined by the DMV.  Currently, exempt vehicles are those 
that are 25 years old or older, or weigh 10,001 pounds G.V.W. or more, or are


<PAGE>

solar or electric powered, or are registered as farm vehicles.  When an exempt 
sticker has been issued, Envirotest personnel will complete a paperwork log.

Training for Exempt Vehicle Stickers shall include:
          Explanation of Exempt Vehicle Stickers
          When New Vehicle Stickers are to be used
          What documentation is necessary to apply for an Exempt Vehicle Sticker
          How to complete Envirotest's documentation and log form

WAIVER STICKERS
A waiver permits a customer whose vehicle has not meet emissions standards, 
to register and operate a vehicle.  This section outlines the correct 
procedure for issuing an emissions waiver.

     WAIVER STICKERS- All customers that have had their vehicle fail their 
     emissions inspection at least twice will be advised by the position 3 
     inspector to the park the vehicle in the parking area and see Station 
     Management to apply for a waiver.  To be eligible for a waiver the 
     customer must have two failed VIRs with them at the time of the waiver 
     application.  The customer must also show that $125.00 or $250.00 
     (depending on year of vehicle) was spent on emissions related repairs.   
     Those repairs must also pertain to the diagnostic conditions which caused 
     the vehicle to fail.  Expenditures for replacement of, and repairs to 
     pollution control devices that have been tampered with can not be counted 
     toward the repair limit.  To be eligible for a waiver the vehicle must 
     have all of its factory-equipped emissions control components intact.   
     Station Management will inspect the vehicle to make sure all of the 
     required pollution control devices are property connected.  Vehicles with 
     less than 24,000 miles or are less than 2 years old are not eligible for 
     a waiver unless the warranty claim is denied in writing by the franchise 
     dealer.  When a waiver sticker has been issued, Envirotest personnel will 
     complete a paperwork log. 

     Training for Waiver Stickers shall include:
          Explanation of Waiver Stickers
          When Waiver Stickers are to be used
          What documentation is necessary to apply for a Waiver Sticker
          How to complete Envirotest's documentation and log form

     The section of the class that will focus on waivers, will be taught by
     Envirotest personnel who have undergone training from a licensed ASE
     Instructor. This training will include instruction on the principals of 
     engine


<PAGE>

     and emission components and their functions.  Additionally Envirotest 
     training personnel will complete a 4 hour course at a repair facility.   
     Emission Component System (ECS) software will be utilized on the Station 
     Managers P.C. to assist Envirotest personnel in identifying engine 
     components.  To utilize the ECS software, Envirotest personnel will enter 
     the vehicle make, model and year of manufacture.  The ECS software will 
     provide a picture of the subject vehicle's engine and location of the 
     factory equipped pollution control devices.  It will aid Envirotest in 
     identifying which components are connected, which components 
     have been removed, and assure that all factory equipped pollution control 
     devices are in place before a waiver is issued.  The database for the ECS 
     software will be periodically updated by Envirotest to be kept current 
     with changes in emission components due to vehicle make, model and year of 
     manufacture.

     Training for Waivers shall include:
          The Waiver Process and Procedure
               Conditions for a Waiver
               Repair Expenditures
               Acceptable receipts / Non acceptable receipts
               Minimum acceptable information on receipts
               Owner performed repairs
               Inspection of Pollution Control Devices 
               Conditions of Warranty Coverage 
          Waiver Equipment Inspection
               Acceptable adjustments to idle/air mixtures
               All belts and hoses
               Air cleaner
               Thermostatic air cleaner
               Positive crankcase ventilation system (pcv)
               Air pump or Air injection system
               Catalytic converter inspection
               Fuel filler restrictor
               Fuel cap
               Exhaust gas recirculation system
               Fuel evaporation canister
               Oxygen sensor
               Spark plus
               Spark plug wires
               Distributor cap
               Rotor
               Condenser
               Choke
               Manual choke
               Idle speed

<PAGE>

               Ignition module
               Computer
               Carburetor rebuilding
               New Carburetors
               Air management system

          Other repairs that may or may not correct a problem could be:
               Timing chain or belt
               Head gasket (vacuum leaks)
               Cam timing
               Cam condition
               Lifters
               Piston rings
               Vacuum switches

     WAIVER DEFICIENCY CHECKLIST- This form is completed and provided to the 
     customer when the vehicle is not eligible for an equipment waiver for 
     various reasons.  Deficiencies may include: no proof has been submitted 
     that the vehicle has failed both tests; did not meet minimum expenditure 
     requirements; all or part of a pollution control system was missing, not 
     working or improperly connected; vehicle qualifies for the performance 
     warranty and the dealer did not reject the claim in writing; or additional 
     repairs are needed (these will be listed on the form).

     Training for Waiver Denials shall include:
          Explanation of Waiver Denials
          When are Waiver Deficiency Checklists used
          What documentation is necessary to complete a Waiver Deficiency
          How to complete Envirotest's documentation and log form
          Which forms are to be returned to the customer
          Acceptable receipts / Non acceptable receipts
          Minimum acceptable information on receipts
          Owner performed repairs

In order for Envirotest personnel to become certified to perform the Waiver 
function, they will be required to complete and pass this class to the 
satisfaction of the instructor to include passing a written test with a score 
of not less than 80%.

<PAGE>

                                                  MATRIX

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------
   YEARS         ASM(0)       ASM(0)     CAT. CONVERTOR   GAS CAP    GAS CAP     OBD II     WAIVER
               (BIENNIAL     (ANNUAL         INSP.        PRESENCE   FUNCTION
                  TEST)        TEST)
- ---------------------------------------------------------------------------------------------------
<S>             <C>           <C>         <C>              <C>       <C>         <C>        <C>
1968-1970                       X                             X                              125
- ---------------------------------------------------------------------------------------------------
1971-1974                       X                             X          X                   125
- ---------------------------------------------------------------------------------------------------
1975-1980                       X             X(1)            X          X                   125
- ---------------------------------------------------------------------------------------------------
1981-1986        X                            X(1)            X          X                   250
- ---------------------------------------------------------------------------------------------------
1987-1995        X                            X(2)            X          X                   250
- ---------------------------------------------------------------------------------------------------
1996+            X                            X(2)            X          X         X(3)      250
- ---------------------------------------------------------------------------------------------------
</TABLE>

(0) Per contract with contractor, idle tests to be performed on certain 
    vehicles unable to be tested by ASM procedure.

(1) For all light duty passenger vehicles.

(2) For all applicable vehicles LESS THAN 8,500 lbs GVWR.

(3) Per Federal regulations.



<PAGE>


                       ADDITIONAL TERMS AND CONDITIONS 

                                    OF 
 
SECOND AMENDMENT TO CONTRACT BETWEEN THE STATE OF

CONNECTICUT AND ENVIROTEST SYSTEMS CORP. FOR THE

ESTABLISHMENT AND OPERATION OF MOTOR VEHICLE INSPECTION

PROGRAM FACILITIES FOR THE STATE CONNECTICUT, DATED APRIL 14,

1994, AS AMENDED BY AMENDMENT EFFECTIVE OCTOBER 22, 1997


1.   All words and phrases in this amendment which are capitalized shall have 
the meanings stated in Exhibit B of the Contract.  As used herein, "Contract" 
means the Contract, as amended by the amendment effective October 22, 1997 
and as amended by this amendment.  As used herein, "First Amendment" means 
the amendment to the Contract effective October 22, 1997. 

2.   Contractor will provide and pay for an additional six (6) four-wheel 
drive dynamometers as follows: two (2) in the Darien facility and one (1) 
each in the Taftville/Norwich facility, the Danbury facility, East Windsor 
facility and the Bridgeport facility.  The Contractor will add an additional 
six (6) four-wheel drive dynamometers into those lanes identified and 
mutually agreed to by the State and Contractor.  Four-wheel drive dynamometer 
procurement and installation will begin within thirty (30) days after the 
effective date of this agreement and will be

                               -1-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

completed in all lanes May 31, 1999 subject unless the State agrees to an 
extension to time.  The Contractor agrees to provide to the State a monthly 
report on its installation progress.  The provisions of this subparagraph (b) 
are subject to the provisions of Section 3.0 of Exhibit E of the Contract.

3.    Exhibit C, page 4, of the Contract regarding the description of the 
network sites and facilities was replaced in its entirety by a table set out as 
Exhibit B to the First Amendment.  This replacement table is deleted in its 
entirety and in place of such table is substituted the table set out in the 
Exhibit A attached to this amendment.

4.    Section 9.0 of Exhibit C of the Contract, which is set forth in the 
First Amendment is hereby deleted in its entirety and replaced with the 
following:

      "9.0 NETWORK AND FACILITIES

      Contractor shall provide equipment and properly staff and operate a 
network of twenty-five (25) stations.  The Contractor shall not be required 
to construct or operate a facility in Fairfield County other than the 
facilities set forth in Exhibit A to this amendment.

      However, the Contractor agrees to build, equip and pay for five (5) 
additional lanes all of which are reflected in Exhibit A to this amendment so 
that the total number of lanes after the lanes have been built will be 92.  
If for any reason or

                                 -2-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

cause unforeseen the building of any of such lanes is not feasible or not 
permitted, the Contractor may with the approval of the State add lanes at 
other stations to achieve the total of five (5) new lanes.

      By no later than January 31, 1999, (but subject to the provisions of 
Section 3.0 of Exhibit E of the Contract) unless the State agrees in writing 
to extend such time, if any of such additional lanes are not operational or 
in substantial progress (other than the Taftville lane which shall be 
operational or in substantial progress by May 31, 1999), the State has the 
right to seek equitable adjustment in the test fee set forth in paragraph 12 
of the First Amendment, which test fee has been agreed to, in part, on the 
basis of Contractor's operation of a 92 lane network, so long as in the 
determination of such equitable adjustment, all network and operation issues 
relating to incremental expenditures undertaken by Contractor in performance 
of the Contract are taken into account if such expenditures arise out of the 
absence of the Lanes.

5.   Section 13.0 of Exhibit C of the Contract, which is set forth in the 
First Amendment, is hereby deleted in its entirety and replaced with the 
following:

     "13.0 SERVICE TO THE PUBLIC

     For the purposes of Exhibit C, section 11.0, of the Contract, (as 
contained in paragraph 21 of the First Amendment) the station and all Lanes 
at:

                              -3-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

     (a)  Taftville/Norwich shall be excluded from all wait time calculations 
and standards for so long as safety inspections are performed by the 
Contractor at that station, but only until the additional lane in 
Taftville/Norwich as set forth in Paragraph 2 of this Amendment has been 
completed and has been operational for fifteen (15) days; and

     (b)  Darien and Norwalk shall be excluded from all wait time 
calculations and standards until such time as the three (3) additional lanes 
at the Darien facility as set forth in Paragraph 2 of this Amendment have 
been operational for fifteen (15) days.

If, despite good faith efforts by Contractor, twelve (12) months after the 
effective date of this amendment either the Taftville/Norwich facility or the 
Darien facility has not been or is not in the process of being permitted or 
zoned for a three (3) lane facility for Taftville/Norwich or a eight (8) lane 
facility in Darien, the parties agree to then negotiate in good faith a 
mutually acceptable amended wait time calculation and standard to be 
applicable to the Norwalk and/or Darien stations not then completed.  If no 
such agreement is reached between the parties, then at the written request 
of either party, the matter shall be resolved in accordance with the 
provisions of Section 12.0 of Exhibit E of the Contract.

     These exclusions shall not relieve the Contractor of responsibility to 
continue to use reasonable efforts to avoid habitual and excessive delays at 
the above-mentioned facilities; to maintain an operational wait time system 
at the facilities, in

                                 -4-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

accordance with Exhibit C, section 11.0 of the Contract (as contained in 
paragraph 21 of the First Amendment) to comply with section 3.K.6 of the 
Technical Specifications; and to keep the public entering the facilities 
informed as to estimated wait times, as provided by the Contract.  With 
respect to all other facilities and Lanes, the provisions of Exhibit E, 
sections 18.0 and 19.0, of the Contract shall remain in full force and 
effect."

6.     In the event that payment is due the Contractor for termination of the 
Contract for any reason whatsoever, the payment to the Contractor for the 
buildings constructed and the equipment purchased to carry out the terms of 
this amendment shall be calculated on the basis that the completion date for 
such was July 1, 1995.

7.     The Contract is hereby supplemented by the addition of the following 
Section Exhibit E of the Contract

       "30.0 PENALTY ASSESSMENT

       In the event that the State intends to assess against the Contractor 
any penalties, including but not limited to, wait time penalties as set forth 
in Section 18.0 of Exhibit E of the Contract or penalties for improper 
inspections as set forth in Section 20.0 of Exhibit E of the Contract, the 
State shall give the Contractor 14 days' notice of such intent.  During such 
14 day period, if the Contractor gives notice to the State, the Contractor 
and the State shall meet to discuss and try to determine the

                               -5-

<PAGE>

validity of the penalties.  The State shall not have the right to withhold 
any fees or payments due the Contractor until the end of such 14 day period.

8.    All provisions of the Contract not specifically amended or superseded 
by the provisions of this amendment shall remain in full force and effect.

9.    This amendment shall not become effective unless and until

      (a)  it is approved as to form by the Office of the Attorney General of 
the State of Connecticut; and

      (b)  an amendment to the safety contract between the parties is 
executed and takes effect concurrent with this amendment.

                                -6-
                                                             [Illegible] DMV
                                                             ---------------
                                                             [Illegible] ENV
                                                             ---------------

<PAGE>

                                  EXHIBIT A
                        ASSIGNMENT OF EMISSIONS SITES
<TABLE>
<CAPTION>

 Site No.          Address               Number of Lanes
- --------------------------------------------------------------------------
<S>         <C>                          <C>
   1        Norwalk Station*                 2
            6 Willard Road
            Norwalk, CT 06851

   2        Danbury Station                  5
            14 Plumtrees Road
            Danbury, CT 06810

   3        Waterbury Station                4
            2038 Thomaston Avenue
            Waterbury, CT 06720

   4        Winsted Station                  2
            154 Torrington/Winsted Rd.
            Winchester, CT 06098

   5        Stratford Station                5
            885 Woodend Road
            Stratford, CT 06497

   6        North Haven Station              7
            25 Stillman Road
            North Haven, CT 06851

   7        Willington Station               2
            81 River Road
            Willington, CT 06279

   8        Farmington Station               4
            1536 New Britain Avenue
            Farmington, CT 06032

   9        Middletown Station               2
            1885 S. Main St. (Rt. 17)
            Middletown, CT 06457

  10        Old Saybrook Station             2
            5 Custom Park Drive
            Old Saybrook, CT 06475

  11        Brooklyn Emissions Station       2
            15 South Main Street
            Brooklyn, CT 06234

  12        East Hartford Station            4
            160 Tolland Turnpike
            East Hartford, CT 06108

  13        Groton Station                   2
            479 Gold Star Hwy. (Rt. 184)
            Groton, CT 06340
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

 Site No.          Address               Number of Lanes
- --------------------------------------------------------------------------
<S>         <C>                          <C>
  14        East Windsor Station              3, plus 1 to be constructed*
            North Road (Rt. 140) Road
            East Windsor, CT 06088

  15        Taftville/Norwich Station         2, plus 1 to be constructed*
            520 Norwich Avenue
            Taftville, CT 06380

  16        Bloomfield Station                3
            110 Granby Street
            Bloomfield, CT 06002

  17        Newington Station                 4
            261 Pascone Place
            Newington, CT 06111

  18        Darien Station                    5, plus 3 to be constructed*
            I-95 Southbound
            Darien, CT 06820

  19        Beacon Falls Station              2
            37 Lancaster Drive
            Beacon Falls, CT 06403

  20        Bridgeport Station                7
            44 River Street
            Bridgeport, CT 06604

  21        Thomaston Station                 3
            401 McMahon Drive
            Thomaston, CT 06787

  22        Manchester Station                5
            161 Sheldon Road
            Manchester, CT 06045

  23        Southington Station               5
            64 Robert Porter Road
            Southington, CT 06489

  24        East Lyme Station                 3
            15 Capitol Drive
            East Lyme, CT 06333

  25        North Windham Station             2
            4 Commerce Drive
            North Windham, CT 06256
</TABLE>

*See section 9.0 of Exhibit C of the Contract as amended.



<PAGE>

                                  AGREEMENT

     This Agreement is made by and between the State of Connecticut, 
Department of Motor Vehicles ("State"), acting by and through Jose 0. 
Salinas, the Commissioner of Motor Vehicles, who is the successor to 
Commissioner Michael W. Kozlowski, under the authority of Sections 4-8, 14-3 
and 14-164c of the Connecticut General Statutes, and Envirotest Systems Corp. 
("Envirotest"), a Delaware corporation with its principal place of business 
located at 246 Sobrante Way, Sunnyvale, California.

                                   WHEREAS,

     1.   By written contract dated April 14, 1994 ("Contract"), Envirotest 
and the State ("Parties") entered into an agreement for the provision of 
emissions testing facilities and services for motor vehicles in accordance 
with Chapter 246a of the Connecticut General Statutes, Conn. Gen. Stat. 
Section 14-164b, ET SEQ.

     2.   During the term of the Contract, certain disputes arose in 
connection with the performance of the Contract, including INTER ALIA, 
whether (a) performance under the Contract resulted in savings to Envirotest, 
such that the State might be entitled to monies from Envirotest, and (b) 
whether Envirotest was entitled to additional monies under the Contract.

     3.   The Contract contained a dispute resolution procedure in Exhibit E, 
Section 12.0. The Parties were unable to resolve their disputes through 
consultation.  Thereafter, by letter dated February 9, 1996, then 
Commissioner Kozlowski set forth the State's position with respect to the 
disputed issues. (A copy of this letter is attached as Exhibit A.)

     4.   On March 11, 1996, Envirotest submitted a Demand for Arbitration
with the American Arbitration Association.

     5.   Thereafter, by Complaint returnable June 4, 1996, and bearing 
Docket No. CV 96-560148 S, the State initiated a lawsuit against Envirotest 
and the American Arbitration Association, seeking to enjoin arbitration of 
the Parties' dispute.  In this lawsuit the State claimed that Envirotest's 
Demand for Arbitration was not timely filed, which Envirotest denies.

     6.   On or about October 22, 1997, the State and Envirotest entered into 
an Amendment to the Contract.  In addition, the State and Envirotest had 
previously entered into a Safety Contract effective October 25, 1996 ("Safety 
Contract").  Since the execution of the Safety Contract issues have arisen 
between the Parties that remain unresolved.

<PAGE>

                                  Page 2 of 7

     7.   The State and Envirotest each deny any wrongdoing with respect to 
the performance of the Contract as amended, and each deny any liability to 
the other.  Nevertheless, the Parties wish to resolve all outstanding issues, 
including any issues which might have been brought through the date of this 
settlement Agreement, and, intending to be legally bound hereby, the State 
and Envirotest covenant, warrant, promise and agree as follows:

                                   AGREEMENT

     1.   PROMISES OF ENVIROTEST

          Envirotest agrees to the following and where applicable as more 
fully set forth in the Second Amendment to the Contract, attached as Exhibit 
B, and the First Amendment to the Safety Contract, attached as Exhibit C:

          a)   Envirotest will construct, staff and operate five (5) emission 
               inspection lanes, as follows:

               i)       Three (3) new lanes at the Darien facility;
               ii)      One (1) new lane at the Taftville facility;
               iii)     One (1) new lane at the East Windsor facility.

               If zoning or other necessary approvals at the above-mentioned 
               locations cannot be obtained, or if for any other reason or 
               cause unforeseen at this time, such construction is not 
               feasible or not permitted, Envirotest may, with the approval 
               of the State, add lanes at other stations to achieve the total 
               of five (5) new lanes.  All new lanes will be operational by 
               no later than January 31,1999, except the Taftville lane, 
               which will be operational by May 31, 1999, unless the State 
               agrees to an extension of time with respect to any lanes.  The 
               provisions of this subparagraph (a) are subject to the 
               provisions of Section 3.0 of Exhibit E of the Contract.

          b)   Envirotest will add six (6) four-wheel dynamometers of which 
               two (2) will be added at the Darien facility, and one (1) each 
               will be added at the Taftville, East Windsor, Danbury and 
               Bridgeport facilities.  Envirotest will add an additional six 
               (6) four-wheel drive dynamometers into those lanes identified 
               and mutually agreed to by the Parties.  Four-wheel drive 
               dynamometer procurement and installation will begin within 
               thirty (30) days after the effective date of this Agreement 
               and will be completed in all lanes by May 31, 1999, unless the 
               State agrees to an extension of time.  Envirotest agrees to

<PAGE>

                                  Page 3 of 7

               provide a monthly report on its installation progress.  The 
               provisions of this subparagraph (b) are subject to the 
               provisions of Section 3.0 of Exhibit E of the Contract.

          c)   Envirotest will increase its safety inspection lane network 
               from sixteen (16) to twenty-three (23) throughout the system. 
               The location of these lanes shall be as agreed to mutually 
               by the Parties.  Existing lanes will be equipped and 
               operational for safety by no later than October 1, 1998, 
               subject to extension of time for events beyond the control of 
               Envirotest.   All safety inspection lanes shall be used for 
               both emissions and safety testing at Envirotest's discretion; 
               however, Envirotest will use its best efforts to assure that 
               customers seeking a safety inspection will be accorded 
               priority in those lanes designated for safety over those 
               customers seeking only an emissions inspection.  Envirotest 
               will continue to comply with the provisions of Section 6.1 of 
               Exhibit C of the Contract regarding station operations.

          d)   Envirotest will staff the additional seven (7) safety 
               inspection lanes under the Safety Contract so long as the 
               Safety Contract continues in existence.

          e)   Subject to the next sentence, there will be no volume 
               guarantee or fee adjustment based on volume for the remainder 
               of the term of the Safety Contract.  All initial tests (except 
               tests on certain classes of vehicles to be agreed upon by the 
               State and Envirotest and which are in a de minimis number) for 
               safety performed in the State will be performed by Envirotest. 
               The State and Envirotest will agree on a schedule for the 
               phasing out of the State performing the initial safety tests.  
               The State may at its sole option continue to perform retests 
               on failing vehicles, up to and including all such retests.  
               The rate to be paid for each completed safety test shall be 
               the rate stated in paragraph 14 of the Safety Contract under 
               the column for 165,000 tests per year.

          f)   Within 120 days of the effective date of this Agreement, 
               Envirotest agrees to provide all customers failing the brake 
               test component of the safety inspection procedure with the 
               percentage results of each wheel printed on the vehicle safety 
               inspection report.

<PAGE>

                                  Page 4 of 7

          g)   Envirotest will keep the public entering the stations for 
               safety inspections informed as to the general requirements of 
               safety inspections, inclusive of wait times and other 
               information as agreed to by both Parties.  The system to 
               provide such information shall be operational no later than 90 
               days after the effective date of this agreement.

          h)   Envirotest agrees that the depreciated value of the additional 
               lanes to be constructed pursuant to this Agreement, for any 
               purpose under the Contract, shall be calculated on the basis 
               of a completion date of July 1, 1995.

          i)   Envirotest agrees that the release granted to the State, as 
               hereinafter provided in paragraph 4, applies to any and all 
               claims of Envirotest arising out of (1) the failure of the 
               State to provide a site in Bridgeport for a station, and (2) 
               the acquisition by Envirotest of the site for the Bridgeport 
               station.

          j)   Envirotest will withdraw its Demand for Arbitration.

     2.   PROMISES BY STATE

          The State agrees to the following and where applicable as more fully
          set forth in the Second Amendment to the Contract and the First
          Amendment to the Safety Contract:

          a)   If the State exercises its right to terminate the Safety 
               Contract for non-appropriation of funds, in accordance with 
               the provisions of paragraph 16 of the Safety Contract, the 
               effective date of termination will not be sooner than June 30, 
               1999.

          b)   The State agrees that Envirotest will not be required, under 
               the Contract, as amended, to either obtain a site for or build 
               a new facility in Fairfield County.

          c)   The State agrees to withdraw, with prejudice, the lawsuit 
               identified above and bearing Docket No. CV-96-5601148 S and 
               withdraw the letter of February 9, 1996 set forth in Paragraph 
               3 of the recitals.

          d)   The State shall review its safety inspection standards and 
               procedures for passenger motor vehicles, in order to ascertain 
               whether a more expedited procedure can be

<PAGE>

                                  Page 5 of 7

               implemented, consistent with applicable laws and regulations. 
               If such changes are approved, Envirotest shall be permitted to 
               amend its inspection procedures accordingly.

          e)   In the event that the State intends to assess against 
               Envirotest any penalties, including but not limited to, wait 
               time penalties as set forth in Section 18.0 of Exhibit E of 
               the Contract or penalties for improper inspections as set 
               forth in Section 20.0 of Exhibit E of the Contract, the State 
               shall give Envirotest 14 days notice of such intent.  During 
               such 14 day period, if Envirotest gives notice to the State, 
               Envirotest and the State shall meet to discuss and try to 
               determine the basis and validity of the penalties.  The State 
               shall not withhold any fees or payments due Envirotest until 
               the end of such 14 day period.

     3.   RELEASE BY STATE

          In exchange for the above-stated consideration, and except as set 
          forth in the second paragraph of this Paragraph 3, the State agrees 
          to forever release and discharge Envirotest, its successors, 
          assigns and subsidiaries, affiliates, present and former directors, 
          officers, agents, general agents, employees and/or any other 
          persons acting on its behalf, in their individual or official 
          capacity, from any and all claims, actions and actions, causes and 
          causes of action, suits, sums of money, contracts, controversies, 
          agreements, promises, damages, judgements and demands whatsoever in 
          law or in equity which the State had, has now or which the State 
          can, shall, or may have for, upon, or by reason of, the Contract 
          including any amendments, or the Safety Contract, as well as any 
          claims for quantum meruit, unjust enrichment, tort, 
          misrepresentation, arising under any constitution, statute, or 
          regulation, through the date of execution of this agreement 
          pertaining to the Contract or Safety Contract.

          The release herein granted by the State does not apply to certain 
          penalties assessed against Envirotest pursuant to the terms of the 
          Contract, including but not limited to those contained in the 
          letters from Joseph Lembo to Robert Jackson dated March 6, 1998, 
          March 5, 1998, February 11, 1998, February 10, 1998 (three letters 
          of this date), December 10, 1997 and September 15, 1997, and 
          letters from Joseph Lembo to Paul Cherepinsky dated March 12, 1998, 
          April 15, 1998 and April 30, 1998.  Envirotest shall have the right 
          to contest such penalties as set forth in these letters, in

<PAGE>

                                  Page 6 of 7

          accordance with the procedures for the resolution of disputes set 
          forth n the Contract.

     4.   RELEASE BY ENVIROTEST

          Envirotest agrees that by this Agreement it does for itself, its 
          affiliates, subsidiaries, successors, assign, agents, employees, 
          and all those acting on its behalf, whether in their individual 
          capacity, does release and forever discharge the State from any and 
          all action and actions, cause and causes of action, suits sums of 
          money, contracts, controversies, agreements, promises, damages, 
          judgements, claims and demands whatsoever in law and equity which 
          Envirotest had, has now or in which Envirotest can, shall, or may 
          have for, upon or by reason of the Contract or the Safety Contract, 
          including claims sounding in contract, tort, quantum meruit or 
          unjust enrichment, quasi-contract, or arising under any statute or 
          regulation, through the date of execution of this Agreement, except 
          any claims as may be related to the penalties exempt from the 
          State's release of Envirotest as set forth in the second paragraph 
          of Paragraph 3.

     5.   GOVERNING LAW

          This Agreement shall be governed by the laws of the State of 
          Connecticut.  Any action to enforce the provisions of this 
          agreement, or seeking relief for breach of its terms, shall be 
          brought in the Superior Court within the State of Connecticut.

     6.   FURTHER ASSURANCES

          The State and Envirotest both agree that, without the receipt of 
          further consideration, they will sign and deliver any documents and 
          do anything else that is reasonable and necessary in the future to 
          make the provisions of this Agreement effective.

     7.   OTHER AGREEMENTS AND CONFLICTS

          This agreement is effective upon signing by the Parties.  If there 
          is a conflict between this agreement and the Second Amendment to 
          the Contract, the Second Amendment to the Contract shall prevail, 
          and if there is a conflict between this agreement and the First 
          Amendment to the Safety Contract, the First Amendment to the Safety 
          Contract shall prevail.

<PAGE>

                                     7 of 7


IN WITNESS WHEREOF, I voluntarily and without coercion set my hand and seal 
this 8th day of May, 1998, as my free act and deed.

                                       ENVIROTEST SYSTEMS CORP.


                                       By /s/ [ILLEGIBLE]
                                          ------------------------------------
                                              Duly Authorized

Subscribed and sworn to before me this 8th day of May, 1998.


                                       /s/ [ILLEGIBLE]
                                       ---------------------------------------
                                           Commissioner of the Superior Court


IN WITNESS WHEREOF, I voluntarily and without coercion set my hand and seal 
this 8th day of May, 1998, as my free act and deed.

                                       STATE OF CONNECTICUT
                                       DEPARTMENT OF MOTOR VEHICLES


                                       By /s/ Jose O. Salinas
                                          ------------------------------------
                                              Jose 0. Salinas, Commissioner
                                              Duly Authorized

Subscribed and sworn to before me this 8th day of May, 1998.


                                       /s/ John Yaravone
                                       ---------------------------------------
                                           Commissioner of the Superior Court


<PAGE>

                               STATE OF CONNECTICUT
     [LOGO]                DEPARTMENT OF MOTOR VEHICLES                 [LOGO]
               60 STATE STREET   WETHERSFIELD, CONNECTICUT 06161-0001

Michael W. Koziowsk,
Commissioner                     CERTIFIED MAIL

February 9, 1996

Envirotest Systems Corporation
2002 N. Forbes Blvd.
Tucson, Arizona 85745
Attention:  President and CEO

Dear Sir:

In accordance with the provisions of the Contract, Exhibit E, Section 12.0, 
this is to inform you of my decision, as State Representative, in the matter 
of the financial issues associated with the continuing performance by 
Envirotest of an idle vehicle emissions inspection procedure, as distinct 
from the I/M 240 procedure specified by the Contract, savings to Envirotest 
arising out of noncompletion of facilities and lanes, and non performance of 
other contract commitments.

As stated in my letter dated December 28, 1995, the position of the 
Department of Motor Vehicles (hereinafter the "DMV") is that the performance 
of the current test has resulted in substantial savings to Envirotest, 
inasmuch as the provisions of the Contract establishing the price per test, 
as well as other provisions defining Envirotest's scope of responsibility for 
the enhanced program were negotiated with the expectation that I/M 240 would 
be administered in a 26-station, 92-lane network.

The savings to Envirotest claimed by the DMV have been set forth in detail in 
a report entitled "Estimated 1995 Cost Savings by Envirotest Systems Corp. 
January 1996," prepared by DMV staff and DMV's independent financial 
consultant.  The report was furnished to representatives of your firm at a 
meeting on January 5, 1996.  Thereafter, you and your representatives met 
with my staff and advisors on January 11th and 12th, and again on January 
22nd, 23rd and 24th in Hartford for the purpose of resolving this dispute.  
In addition to these meetings, there have been numerous telephone 
communications between our representatives.

Since the parties have been unable to dispose of this dispute by means of 
consultations within thirty days of my request for consultation, dated 
December 28, 1995, as required by Exhibit E, Section 12.0, this letter shall 
constitute my decision with respect to this dispute.  In this regard, I have 
had available to me for my review the Contract, the contents of the 
above-cited report, all documentary materials submitted by Envirotest, and 
all correspondence between the DMV and Envirotest.  My decision is that 
Envirotest has accrued certain savings reason of its nonperformance of 
enhanced testing, as well as related contract requirements, as follows:

<PAGE>

Envirotest Systems Corporation
February 9, 1996
Page 2

<TABLE>

     <S>                                                       <C>
     1.  Savings due to Non-Completion of Facilities/Lanes     $1,937,000

     2.  Cost Savings Due to Performance of Lesser Test        $  238,000

     3.  Cost Savings Due to Non-Performance of other
         Contract Commitments                                  $  255.000
                                                               ----------
                                                               $2,430,000
</TABLE>

The above total does not include additional operating savings such as 
maintenance and spare usage arising out of the idle test as distinct from 
performance of a loaded mode test, and labor cost savings.  The above totals 
are for calendar year 1995, and will continue to accrue during 1996, and 
thereafter, until such time as the entire station/lane configuration 
specified by the Contract is operational and IM/240 testing (or other 
enhanced test procedure as may be agreed and established) is administered by 
Envirotest to all eligible 1981 and newer model year vehicles.  The amounts 
stated do not address or include potential claims of the DMV for certain 
operational problems and deficiencies that have been made known to 
Envirotest, some of which may result in the imposition of penalties 
authorized pursuant to Exhibit E, section 20.0.

The report also identified certain departures from the Contract 
specifications.  In more detail, the actions still required and directed 
dates for completion are as follows:

     1.  WAIT TIME SYSTEM - ALL STATIONS.  A fully functional wait time system
     meeting all Contract specifications must be installed within thirty (30)
     days.   Reference is made to Exhibit E, section 18.0 concerning the
     functional requirements and measurement capabilities of the system.

     2.  CUSTOMER WAIT AREA SAFETY - ALL STATIONS.  The potential hazard to
     customers from gasses used or present during operations must be eliminated.
     A plan must be submitted to DMV within two (2) weeks detailing the
     corrective measures that will be taken.

It is my decision that unless these deficiencies are finally remedied within 
the time frames indicated the DMV may proceed to avail itself of any and all 
remedies provided in the Contract.

Sincerely,

/s/ Michael W. Kozlowski

Michael W . Kozlowski
Commissioner

<PAGE>

Envirotest Systems Corporation
February 9, 1996
Page 3


cc: Mr. Joseph McKeon  via Certified Mail
    CT Vehicle Inspection Program
    Envirotest Corporation
    60A Weston Street
    Hartford, CT 06120


    Mr. Jeffrey Barth  via Certified Mail
    CT Vehicle Inspection Program
    Envirotest Corporation
    60A Weston Street
    Hartford, CT 06120

    Mr. Dane Kosten, Esq.
    Levy & Droney, P.C.
    74 Bafterson Park Road
    P.O. Box 887
    Farmington, CT 06034-0887

<PAGE>

                        ADDITIONAL TERMS AND CONDITIONS
                                     OF
              SECOND AMENDMENT TO CONTRACT BETWEEN THE STATE OF
              CONNECTICUT AND ENVIROTEST SYSTEMS CORP.  FOR THE
           ESTABLISHMENT AND OPERATION OF MOTOR VEHICLE INSPECTION
         PROGRAM FACILITIES FOR THE STATE CONNECTICUT, DATED APRIL 14,
          1994, AS AMENDED BY AMENDMENT EFFECTIVE OCTOBER 22,1997

1.   All words and phrases in this amendment which are capitalized shall have 
the meanings stated in Exhibit B of the Contract.  As used herein, "Contract" 
means the Contract, as amended by the amendment effective October 22, 1997 
and as amended by this amendment.  As used herein, "First Amendment" means 
the amendment to the Contract effective October 22, 1997.

2.   Contractor will provide and pay for an additional six (6) four-wheel 
drive dynamometers as follows: two (2) in the Darien facility and one (1) 
each in the Taftville/Norwich facility, the Danbury facility, East Windsor 
facility and the Bridgeport facility.  The Contractor will add an additional 
six (6) four-wheel drive dynamometers into those lanes identified and 
mutually agreed to by the State and Contractor.  Four-wheel drive dynamometer 
procurement and installation will begin within thirty (30) days after the 
effective date of this agreement and will be

                                     - 1 -

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                                                               ____ENV

<PAGE>

completed in all lanes May 31, 1999 subject unless the State agrees to an 
extension to time.  The Contractor agrees to provide to the State a monthly 
report on its installation progress.  The provisions of this subparagraph (b) 
are subject to the provisions of Section 3.0 of Exhibit E of the Contract.

3.   Exhibit C, page 4, of the Contract regarding the description of the 
network sites and facilities was replaced in its entirety by a table set out 
as Exhibit B to the First Amendment.  This replacement table is deleted in 
its entirety and in place of such table is substituted the table set out in 
the Exhibit A attached to this amendment.

4.   Section 9.0 of Exhibit C of the Contract, which is set forth in the 
First Amendment is hereby deleted in its entirety and replaced with the 
following:

     "9.0 NETWORK AND FACILITIES

     Contractor shall provide equipment and properly staff and operate a 
network of twenty-five (25) stations.  The Contractor shall not be required 
to construct or operate a facility in Fairfield County other than the 
facilities set forth in Exhibit A to this amendment.

     However, the Contractor agrees to build, equip and pay for five (5) 
additional lanes all of which are reflected in Exhibit A to this amendment so 
that the total number of lanes after the lanes have been built will be 92.  
If for any reason or

                                     - 2 -

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                                                               ____ENV

<PAGE>

cause unforeseen the building of any of such lanes is not feasible or not 
permitted, the Contractor may with the approval of the State add lanes at 
other stations to achieve the total of five (5) new lanes.

     By no later than January 31, 1999, (but subject to the provisions of 
Section 3.0 of Exhibit E of the Contract) unless the State agrees in writing 
to extend such time, if any of such additional lanes are not operational or 
in substantial progress (other than the Taftville lane which shall be 
operational or in substantial progress by May 31, 1999), the State has the 
right to seek equitable adjustment in the test fee set forth in paragraph 12 
of the First Amendment, which test fee has been agreed to, in part, on the 
basis of Contractor's operation of a 92 lane network, so long as in the 
determination of such equitable adjustment, all network and operation issues 
relating to incremental expenditures undertaken by Contractor in performance 
of the Contract are taken into account if such expenditures arise out of the 
absence of the Lanes.

5.   Section 13.0 of Exhibit C of the Contract, which is set forth in the 
First Amendment, is hereby deleted in its entirety and replaced with the 
following:

     "13.0 SERVICE TO THE PUBLIC

     For the purposes of Exhibit C, section 11.0, of the Contract, (as 
contained in paragraph 21 of the First Amendment) the station and all Lanes 
at:

                                     - 3 -

                                                               ____DMV
                                                               ____ENV

<PAGE>

     (a)  Taftville/Norwich shall be excluded from all wait time calculations 
and standards for so long as safety inspections are performed by the 
Contractor at that station, but only until the additional lane in 
Taftville/Norwich as set forth in Paragraph 2 of this Amendment has been 
completed and has been operational for fifteen (15) days; and

     (b)  Darien and Norwalk shall be excluded from all wait time 
calculations and standards until such time as the three (3) additional lanes 
at the Darien facility as set forth in Paragraph 2 of this Amendment have 
been operational for fifteen (15) days.

If, despite good faith efforts by Contractor, twelve (12) months after the 
effective date of this amendment either the Taftville/Norwich facility or the 
Darien facility has not been or is not in the process of being permitted or 
zoned for a three (3) lane facility for Taftville/Norwich or a eight (8) lane 
facility in Darien, the parties agree to then negotiate in good faith a 
mutually acceptable amended wait time calculation and standard to be 
applicable to the Norwalk and/or Darien stations not then completed.  If no 
such agreement is reached between the parties, then at the written request of 
either party, the matter shall be resolved in accordance with the provisions 
of Section 12.0 of Exhibit E of the Contract.

     These exclusions shall not relieve the Contractor of responsibility to 
continue to use reasonable efforts to avoid habitual and excessive delays at 
the above-mentioned facilities; to maintain an operational wait time system 
at the facilities, in

                                     - 4 -

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                                                               ____ENV

<PAGE>

accordance with Exhibit C, section 11.0 of the Contract (as contained in 
paragraph 21 of the First Amendment) to comply with section 3.K.6 of the 
Technical Specifications; and to keep the public entering the facilities 
informed as to estimated wait times, as provided by the Contract.  With 
respect to all other facilities and Lanes, the provisions of Exhibit E, 
sections 18.0 and 19.0, of the Contract shall remain in full force and 
effect."

6.   In the event that payment is due the Contractor for termination of the 
Contract for any reason whatsoever, the payment to the Contractor for the 
buildings constructed and the equipment purchased to carry out the terms of 
this amendment shall be calculated on the basis that the completion date for 
such was July 1, 1995.

7.   The Contract is hereby supplemented by the addition of the following 
Section Exhibit E of the Contract

     "30.0 PENALTY ASSESSMENT

     In the event that the State intends to assess against the Contractor any 
penalties, including but not limited to, wait time penalties as set forth in 
Section 18.0 of Exhibit E of the Contract or penalties for improper 
inspections as set forth in Section 20.0 of Exhibit E of the Contract, the 
State shall give the Contractor 14 days' notice of such intent.  During such 
14 day period, if the Contractor gives notice to the State, the Contractor and 
the State shall meet to discuss and try to determine the

                                     - 5 -

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                                                               ____ENV

<PAGE>

validity of the penalties.  The State shall not have the right to withhold 
any fees or payments due the Contractor until the end of such 14 day period.

8.   All Provisions of the Contract not specifically amended or superseded by 
the provisions of this amendment shall remain in full force and effect.

9.   This amendment shall not become effective unless and until

     (a)  it is approved as to form by the Office of the Attorney General of 
the State of Connecticut; and

     (b)  an amendment to the safety contract between the parties is executed 
and takes effect concurrent with this amendment.

                                     - 6 -
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                                                               ____ENV

<PAGE>

                                  EXHIBIT A
                       Assignment of Emissions Sites
<TABLE>
<CAPTION>

 Site No.          Address               Number of Lanes
- --------------------------------------------------------------------------
<S>         <C>                          <C>
   1        Norwalk Station*                 2
            6 Willard Road
            Norwalk, CT 06851

   2        Danbury Station                  5
            14 Plumtrees Road
            Danbury, CT 06810

   3        Waterbury Station                4
            2038 Thomaston Avenue
            Waterbury, CT 06720

   4        Winsted Station                  2
            154 Torrington/Winsted Rd.
            Winchester, CT 06098

   5        Stratford Station                5
            885 Woodend Road
            Stratford, CT 06497

   6        North Haven Station              7
            25 Stillman Road
            North Haven, CT 06851

   7        Willington Station               2
            81 River Road
            Willington, CT 06279

   8        Farmington Station               4
            1536 New Britain Avenue
            Farmington, CT 06032

   9        Middletown Station               2
            1885 S. Main St. (Rt. 17)
            Middletown, CT 06457

  10        Old Saybrook Station             2
            5 Custom Park Drive
            Old Saybrook, CT 06475

  11        Brooklyn Emissions Station       2
            15 South Main Street
            Brooklyn, CT 06234

  12        East Hartford Station            4
            160 Tolland Turnpike
            East Hartford, CT 06108*

  13        Groton Station                   2
            479 Gold Star Hwy. (Rt. 184)
            Groton, CT 06340
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

 Site No.          Address               Number of Lanes
- --------------------------------------------------------------------------
<S>         <C>                          <C>
  14        East Windsor Station              3, plus 1 to be constructed*
            North Road (Rt. 140) Road
            East Windsor, CT 06088

  15        Taftville/Norwich Station         2, plus 1 to be constructed*
            520 Norwich Avenue
            Taftville, CT 06380

  16        Bloomfield Station                3
            110 Granby Street
            Bloomfield, CT 06002

  17        Newington Station                 4
            261 Pascone Place
            Newington, CT 06111

  18        Darien Station                    5, plus 3 to be constructed*
            I-95 Southbound
            Darien, CT 06820

  19        Beacon Falls Station              2
            37 Lancaster Drive
            Beacon Falls, CT 06403

  20        Bridgeport Station                7
            44 River Street
            Bridgeport, CT 06604

  21        Thomaston Station                 3
            401 McMahon Drive
            Thomaston, CT 06787

  22        Manchester Station                5
            161 Sheldon Road
            Manchester, CT 06045

  23        Southington Station               5
            64 Robert Porter Road
            Southington, CT 06489

  24        East Lyme Station                 3
            15 Capitol Drive
            East Lyme, CT 06333

  25        North Windham Station             2
            4 Commerce Drive
            North Windham, CT 06256
</TABLE>

*See section 9.0 of Exhibit C of the Contract as amended.

<PAGE>

                       ADDITIONAL TERMS AND CONDITIONS
                                    OF
        FIRST AMENDMENT TO PERSONAL SERVICE AGREEMENT BETWEEN THE
       STATE OF CONNECTICUT AND ENVIROTEST SYSTEMS CORP.  FOR THE
       MOTOR VEHICLE SAFETY INSPECTIONS EFFECTIVE OCTOBER 25,1996

1.   All words and phrases in this amendment which are capitalized shall have 
the meanings stated in the Agreement unless defined herein.  As used herein, 
"Agreement" means the Personal Service Agreement effective October 25, 1996, 
amended by this amendment.

2.   Paragraph 3 of the Agreement is deleted in its entirety and replaced with
following:

"3   VOLUME OF INSPECTIONS

Subject to the next sentence, there will be no volume guarantee or fee 
adjustment based on volume for the remainder of the term of the Safety 
Contract. All initial tests (except tests on certain classes of vehicles to 
be agreed upon by the State and the Contractor and which are in a deminimis 
number) for safety performed in the State will be performed by the 
Contractor.  The State and the

                                       1 
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                                                               ____ENV

<PAGE>

Contractor will agree on a schedule for the phasing out of the State performing 
the initial safety tests.  The State may at its sole option continue to perform
retests on any vehicles failing a safety inspection.

3.   Paragraph 14 of the Agreement is deleted in its entirety and replaced with
following:

"14  PAYMENT TO CONTRACTOR

In consideration of the services performed by the Contractor under this 
Agreement, DMV agrees to pay the Contractor at the following rates per each 
completed inspection for which the fee is collected:

1998     $13.42
1999      13.89
2000      14.38
2001      14.88
2002      15.40

The Contractor may submit invoices stating the number of inspections 
performed during a specified period of time and the total amount due.  Such 
invoices may be submitted not more frequently than once per month, in 
arrears, to the attention of DMV Fiscal Services Office.  DMV shall cause 
such invoices to be paid promptly in accordance with existing State of 
Connecticut payment procedures but in no

                                       2 
                                                               ____DMV
                                                               ____ENV

<PAGE>

event more than (30) thirty days after submission, subject to the provisions 
of the following paragraph No. 15, regarding the responsibility of the 
Contractor to substantiate any discrepant inspections and/or amounts."

4.   Paragraph 4 of the Agreement is deleted in its entirety and replaced with
following:

"4   FACILITIES

Contractor commits to perform inspections at specially designated and 
equipped safety lanes at designated emissions inspection stations, in 
accordance with the following list:

<TABLE>
<CAPTION>

          STATION                 NO. OF LANES
          -------                 ------------
          <S>                    <C>
          North Haven*            3
          Manchester              2
          Southington             2
          Bridgeport*             3
          Norwalk                 0
          Thomaston               1
          North Windham           1
          Taftville/Norwich*      2
          East Lyme               1
          Waterbury*              2
          Danbury*                2
          Darien*                 3
          See ** below            1
                                 --
          Total                  23
</TABLE>

* One emission lane to be converted to emission/safety for a total of six (6) 
additional emissions lanes that will now be doing safety also.
** One additional lane will be converted to safety at a location to be agreed 
to by the parties.

                                       3 
                                                               ____DMV
                                                               ____ENV

<PAGE>

At any time during the term either party may require changes in the above 
network, including net increases or reductions with respect to the size of 
the network.  Any such changes shall be made by Change Order in accordance 
with the provisions of Paragraph No. 29 and shall contain such terms, 
conditions and schedules as may be agreed.  It is understood that any such 
Change Order shall include provisions for financial adjustments and payments 
as may be warranted by change in the size of the network and costs or cost 
savings resulting therefrom.

All safety inspection lanes shall be used for both emissions and safety 
testing at Envirotest's discretion; however, Envirotest will use its best 
efforts to assure that customers seeking a safety inspection will be accorded 
priority in those lanes designated for safety over those customers seeking 
only an emissions inspection. The Contractor will take reasonable steps, 
including adequate signage and positioning of traffic control devices or 
barriers, to ensure that vehicles requiring safety inspections are directed 
to the correct lane or lanes.

Existing lanes to be equipped for safety inspections shall be operational 
no later than October 1, 1998, subject to extension of time for events beyond 
the control of the Contractor."

                                       4 

                                                               ____DMV
                                                               ____ENV

<PAGE>

5.   The following paragraph shall be added at the end of Paragraph 6 of the 
Agreement:

"The State shall review its safety inspection standards and procedures for 
passenger motor vehicles, in order to ascertain whether a more expedited 
procedure can be implemented, consistent with applicable laws and 
regulations.  If such changes are approved, the Contractor shall be permitted 
to amend its inspection procedures accordingly."

6.   The following paragraph shall be added at the end of Paragraph 8 of the 
Contract:

"So long as the Contract remains in effect, the Contractor at its own expense 
will staff the seven (7) additional safety lanes added by Paragraph 2 of this 
Agreement."

7.   Paragraph 10 of the Agreement is modified by the following being added 
as a separate paragraph at the end:

"Within 120 days of the effective date of this amendment, the Contractor 
agrees to provide all customers failing the brake test component of the 
safety inspection procedure with the percentage results of each wheel printed 
on the vehicle safety inspection report."

8.   Paragraph 16 of the Agreement is modified by adding the following 
paragraph between the first and the second paragraph:

                                       5 

                                                               ____DMV
                                                               ____ENV

<PAGE>

"If the State exercises its right to terminate this Contract for 
non-appropriation of funds, as set forth in this Paragraph 16, the effective 
date of termination will be not sooner than June 30, 1999."

9.   Paragraph 34 is added to the Agreement as follows:

"34.  WAIT TIME INFORMATION

The Contractor will keep the public entering the stations for safety 
inspections informed as to the general requirements of safety inspections, 
inclusive of wait times and other information as agreed to by both parties.  
The system providing such information shall be operational no later than 90 
days after the effective date of this amendment."

10.  All provisions of the Amendment not specifically amended or superseded 
by the provisions of this amendment shall remain in full force and effect.

11.  This amendment shall not become effective unless and until

     (a) it is approved as to form by the Office of the Attorney General of 
the State of Connecticut; and

     (b) an amendment to the emissions contract between the parties is 
executed and takes effect concurrent with this amendment.

                                       6 

                                                               ____DMV
                                                               ____ENV

<PAGE>

B-111-5B                    COMMONWEALTH OF KENTUCKY                    06/09/98
                      FINANCE AND ADMINISTRATION CABINET

                                                                       PAGE:   1

AOC IN PROCESS: 00    NOTICE OF AWARD OF PRICE CONTRACT        PCT NO.: BP010138
AOC POSTED    : 00

PRICE CONTRACT DESCRIPTION: VEHICLE INSPECTION

BUYER: MIKE ABELL                                    REQUISITION NO.: RQ028284
_______VENDOR____________                               PROPOSAL NO.: IT008985

                                                           AUTHORITY:         
 ENVIROTEST SYSTEMS CORP                             OPTION TO RENEW:  Y      
 246 SOBRANTE WAY                                     EFFECTIVE DATE: 07 01 1998
                                                     EXPIRATION DATE: 06 30 2008
 SUNNYVALE       CA 94086                                   DELIVERY: 00 DAYS   
_________________________                                      TERMS: NET       
           
VENDOR ID: 060914220

VENDOR PHONE: 408 774 6300

AGENCY:   AIR QUALITY, DIVISION OF-NATURAL RESCS.
          NATURAL RESOURCES & ENVIRONMENT. CABINET

IN ACCORDANCE WITH KRS 45A.085 AND THE TERMS, CONDITIONS AND SPECIFICATIONS 
CONTAINED IN THE OFFER SUBMITTED BY YOU ON THE ABOVE PROPOSAL NO. AND HEREBY 
MADE PART OF THIS CONTRACT, YOU ARE AWARDED THIS PRICE CONTRACT TO FURNISH THE 
ITEMS OR SERVICES LISTED BELOW AS MAY BE REQUIRED FOR USE BY THE AGENCY(IES), 
AS SHOWN ABOVE, DURING THE PERIOD INDICATED.

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
ITEM      
 NO.                     SCOPE OF CONTRACT
- --------------------------------------------------------------------------------
<S>       <C>
0001      0961 0360000 00
          THIS IS A PRICE CONTRACT FOR THE PROVISION AND OPERATION OF AN 
          IMPROVED BASIS VEHICLE INSPECTION MAINTENANCE PROGRAM IN BOONE, 
          CAMPBELL, AND KENTON COUNTIES IN KENTUCKY, AND SPECIFICALLY FOR THE 
          PROVISION AND OPERATION OF A VEHICLE EMISSIONS TESTING FACILITY IN 
          EACH OF THE THREE COUNTIES IN ACCORDANCE WITH THE REQUIREMENTS OF 
          IT008985.

          CONTROLLING DOCUMENTS FOR THIS CONTRACT IN ORDER OF PRECEDENCE:
          1)  REQUEST FOR PROPOSAL IT008985 AS AMENDED BY ADDENDUM 1 DATED 
              SEPTEMBER 30, 1997, ADDENDUM 2 DATED OCTOBER 22, 1997 AND 
              ADDENDUM 3 DATED NOVEMBER 12, 1997. IT IS SPECIFICALLY NOTED 
              THAT ADDENDUM 1'S QUESTION 42 AND THE RESPONSE THERETO ARE 
              INCORPORATED INTO THIS CONTRACT.
</TABLE>

<PAGE>

B-111-5B                    COMMONWEALTH OF KENTUCKY                    06/09/98
                      FINANCE AND ADMINISTRATION CABINET

                                                                       PAGE:   2

                      PRICE CONTRACT CONTINUATION SHEET


PCT NO.: BP010138

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
ITEM      
 NO.                     SCOPE OF CONTRACT
- --------------------------------------------------------------------------------
<S>     <C>
          2)  ENVIROTEST SYSTEM'S TECHNICAL AND COST PROPOSALS DATED NOVEMBER 
              13, 1997 AS AMENDED BY THE COMPANY'S BEST & FINAL OFFER DATED 
              DECEMBER 29, 1997, ITS AMENDED RESPONSE DATED MARCH 20, 1998, 
              AND CORRESPONDENCE DATED APRIL 30, 1998, AND MAY 19, 1998 
              (ATTACHED).

          3)  COSTS FOR THIS CONTRACT ARE $17.78 PER VEHICLE TEST.

0002      0961 0360000 00
          CMAQ FUNDS IN THE AMOUNT OF ONE MILLION DOLLARS ($1,000,000.00), AS 
          REFERENCED IN SECTION 70.000 C. AND QUESTION 46 OF ADDENDUM 1 DATED 
          SEPTEMBER 30, 1997, WILL BE PAID TO THE CONTRACTOR MONTHLY UPON 
          RECEIPT BY THE NREPC'S DIVISION OF AIR QUALITY OF PROPERLY SUBMITTED 
          INVOICES DOCUMENTING PAID CONTRACTOR CONSTRUCTION PROGRESS PAYMENTS. 
          THE CMAQ PAYMENTS WILL EQUAL EIGHTY PERCENT (80%) OF THE 
          CONTRACTOR'S PAID CONSTRUCTION PROGRESS PAYMENTS, UP TO THE AGREED 
          UPON $1,000,000.

        TERMS:

          5)  SECTION 40.220 OF THE RFP IS CLARIFIED BY THE ADDITION OF THE 
              FOLLOWING AT THE END OF THAT SECTION:

              5.  THE PROCEDURE FOR TERMINATION AND THE PROCEDURE FOR CLAIMS 
                  PURSUANT TO THIS SECTION 40.220 SHALL BE AS SET FORTH IN 
                  SECTION 40.270 AND 40.280, WITH THE EXCEPTION THAT A 
                  TERMINATION FOR DEFAULT OF THE CONTRACTOR SHALL BE GOVERNED 
                  BY SECTION 40.230.

          6)  SECTION 40.230 OF THE RFP IS CLARIFIED BY ADDING THE FOLLOWING 
              PARAGRAPH AT THE END OF THAT SECTION:

              THE COMMONWEALTH, PRIOR TO DECLARING A DEFAULT, AGREES TO 
              PROVIDE THE CONTRACTOR WITH WRITTEN NOTICE OF THE CONTRACT TERMS 
              BREACHED AND A PERIOD OF UP TO 30 DAYS TO CURE SUCH DEFAULT
</TABLE>

<PAGE>

B-111-5B                    COMMONWEALTH OF KENTUCKY                    06/09/98
                      FINANCE AND ADMINISTRATION CABINET

                                                                       PAGE:   3

                      PRICE CONTRACT CONTINUATION SHEET


PCT NO.: BP010138

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
ITEM      
 NO.                     SCOPE OF CONTRACT
- --------------------------------------------------------------------------------
<S>       <C>
              OR SUCH LONGER PERIOD AS MAY BE NECESSARY SO LONG AS THE 
              CONTRACTOR IS USING ITS BEST EFFORTS TO CURE THE DEFECT.

          7)  SECTION 45.100 OF THE RFP IS CLARIFIED BY ADDING THE FOLLOWING 
              AT THE END OF THAT SECTION:

              UPON SATISFACTION BY THE CONTRACTOR OF THE CONDITIONS STATED 
              ABOVE, THE COMMONWEALTH SHALL:

              A.  PAY THE CONTRACTOR FOR ALL CONTRACTOR OWNED LAND ACQUIRED BY 
                  THE COMMONWEALTH PURSUANT TO THIS SECTION IN AN AMOUNT EQUAL 
                  TO THE FAIR MARKET VALUE OF THE LAND. FOR THE PURPOSES OF 
                  THIS SECTION 45.100, "FAIR MARKET VALUE" SHALL BE THE 
                  AVERAGE OF TWO APPRAISALS AS DETERMINED BY ONE INDEPENDENT 
                  APPRAISER SELECTED BY THE COMMONWEALTH AND A SECOND 
                  INDEPENDENT APPRAISER SELECTED BY THE CONTRACTOR: PROVIDED, 
                  THAT IF THE APPRAISALS DIFFER BY MORE THAN 10% AS TO ANY 
                  PARTICULAR PROPERTY, THE PARTIES AGREE TO ABIDE BY THE 
                  DETERMINATION OF A THIRD APPRAISER, SELECTED BY THE TWO 
                  APPRAISERS AND MUTUALLY ACCEPTABLE TO THE COMMONWEALTH AND 
                  THE CONTRACTOR, WITH RESPECT TO ANY SUCH PROPERTY. THE 
                  APPRAISAL PROCESS SHALL BE COMPLETED NOT LATER THAN THIRTY 
                  (30) DAYS AFTER THE END OF THE FULL CONTRACT TERM OR WITHIN 
                  NINETY (90) DAYS AFTER THE EFFECTIVE DATE OF AN EARLIER 
                  TERMINATION.

              B.  ASSUME ALL OBLIGATIONS OF THE CONTRACTOR UNDER ALL LEASES 
                  AND UNCOMPLETED AGREEMENTS ACQUIRED BY THE COMMONWEALTH AND 
                  ASSIGNED BY THE CONTRACTOR, AND ARISING OUT OF THE 
                  COMMONWEALTH'S CONTINUED OPERATION OF THE INSPECTION 
                  FACILITIES.

              C.  PAY THE CONTRACTOR ITS BOOK VALUE FOR ALL EQUIPMENT, 
                  BUILDINGS, IMPROVEMENTS TO LAND, SYSTEM HARDWARE AND 
                  SOFTWARE, INCLUDING ALL
</TABLE>

<PAGE>

B-111-5B                    COMMONWEALTH OF KENTUCKY                    06/09/98
                      FINANCE AND ADMINISTRATION CABINET

                                                                       PAGE:   4

                      PRICE CONTRACT CONTINUATION SHEET


PCT NO.: BP010138

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
ITEM      
 NO.                     SCOPE OF CONTRACT
- --------------------------------------------------------------------------------
<S>       <C>
                  SPARE PARTS, CONVEYED, TRANSFERRED, AND ASSIGNED.

              D.  PAY THE CONTRACTOR ITS COST FOR ALL SUPPLIES CONVEYED, 
                  TRANSFERRED, AND ASSIGNED.

          *************************CONTRACT PERIOD******************************
          THIS CONTRACT WILL BE FOR THE PERIOD OF TEN (10) YEARS WITH AN 
          OPTION TO RENEW FOR AN ADDITIONAL TWO, ONE YEAR PERIODS, ALL PARTIES 
          CONCURRING.
</TABLE>

IN WITNESS WHEREOF, THE COMMONWEALTH OF KENTUCKY, FINANCE AND ADMINISTRATION 
CABINET, THE DIVISION OF PURCHASES AND THE REPRESENTATIVE, AS AUTHORIZED AGENT 
FOR THE CONTRACTOR, HAVE HEREUNTO SUBSCRIBED THEIR NAMES ON THE DAY AND DATE 
FIRST ABOVE WRITTEN.


           COMMONWEALTH OF KENTUCKY                       CONTRACTOR

SIGNED:   /s/ [ILLEGIBLE]     6-18-98                ENVIROTEST SYSTEMS CORP.
          -----------------------------           ------------------------------
          PURCHASING OFFICER                          NAME OF CONTRACTOR

                                                  BY: /s/ [ILLEGIBLE]
                                                      --------------------------
                                                       SIGNATURE

APPROVED: /s/ [ILLEGIBLE]                            VICE PRESIDENT, TREASURER
          -----------------------------           ------------------------------
          AUTHORIZED AGENT,                          TITLE
          FINANCE AND ADMINISTRATION CABINET

<PAGE>

B111-18                        COMMONWEALTH OF KENTUCKY
REV. 02/92               FINANCE AND ADMINISTRATION CABINET
                                DIVISION OF PURCHASES


                                    ADDENDUM NO. 1
INVITATION NO: IT008985                                     AOC DATE: 09/30/97

       AOC ID: CO021967                                 OPENING DATE: 10/01/97

    BID TITLE: VEHICLE INSPECTION PROGRAM

     REASON FOR CHANGE:

          EXTEND OPENING DATE.  ADDITION OF QUESTIONS AND ANSWERS. DELETION OF
               TERMS.

               The opening date has been changed to read: 10/30/97

               The terms have been changed as follows:
                    SECTION 31.700
                      DELETE "CABINET POLICIES".

                    SECTION 33.400
                      DELETE REFERENCES TO GASES, OTHER THAN SPAN GASES.

                    SECTION 34.000, ET. AL.
                      DELETE REFERENCES TO REQUIREMENTS RELATED TO THE IM240
                      PROCEDURE.

                               (continued on next page)

*    Bidder must acknowledge receipt of this and any addenda, either with bid or
     by separate letter. Acknowledgement must be received in the office of the
     Division of Purchases, New Capitol Annex Building, Frankfort, Kentucky not
     later than 4:30 P.M. EDT on 10/30/97. If by separate letter, the following
     information must be placed in the lower left hand corner of the envelope:

               Invitation No: IT008985
                         for: VEHICLE INSPECTION PROGRAM
                Opening Date: 10/30/97

                                   By NANCY HAGGERTY  /s/ Nancy Haggerty
                                      Authorized Agent, Division of Purchases

Receipt acknowledge
                      ---------------------------------------------------------
                                       Firm

                                   By
                                       ----------------------------------------
                                        Authorized Agent

* NOTE: One copy of this form must be signed and returned



<PAGE>

B111-18                        COMMONWEALTH OF KENTUCKY
REV. 02/92               FINANCE AND ADMINISTRATION CABINET
                                DIVISION OF PURCHASES


                                    ADDENDUM NO. 1
INVITATION NO: IT008985                                         DATE: 10/01/97
       AOC ID: CO021967                                         PAGE:        2


                     SECTION 20.200, FIRST PARAGRAPH, THIRD LINE:
                         NUMBER OF VEHICLES SHOULD BE 258,331

                          ADD QUESTIONS AND ANSWERS TO RFP.

<PAGE>


                                 ADDENDUM TO IT008985
                              VEHICLE INSPECTION PROGRAM


Question 1.    Section 10.300 - Schedule of Events

               The schedule anticipates a proposal submission deadline of
               10/1/97. We would request an extension of that deadline to
               11/1/97?

               THE IMPLEMENTATION SCHEDULE HAD BEEN REVISED FOR OFFERORS TO
               SUBMIT PROPOSALS BY OCTOBER 30, 1997.

               REVISED IMPLEMENTATION SCHEDULE

               8-29-97             ISSUANCE OF RFP
               9-10-97             OFFEROR'S CONFERENCE
               10-30-97            PROPOSAL SUBMISSION DEADLINE
               11-10/14-97         ORAL PRESENTATIONS
               11-21-97            NEGOTIATIONS CLOSED AND SUCCESSFUL
                                   PROPOSAL SELECTED
               12-30-97            EFFECTIVE DATE OF CONTRACT (PHASE I 
                                   BEGINS)
               8-17/21-98          ACCEPTANCE TEST PROCEDURE CERTIFICATION
                                   PERIOD
               9/98                AUTHORIZATION TO OPERATE INSPECTION STATIONS
                                   ISSUED BY DAQ
               11-1-98             PHASE II BEGINS (TESTING OF VEHICLES WITH
                                   1-31-99 REGISTRATION RENEWAL DEADLINES)
               1-01                IMPLEMENT FINAL CUT POINTS
               4-1-07              ISSUE RFP FOR NEW CONTRACT TO OPERATE PROGRAM
               12-31-07            CONTRACT AWARDED UNDER THIS RFP EXPIRES

Question 2.    Section 10.300 - Schedule of Events

               The Phase II testing (schedule) is somewhat aggressive. Would the
               Cabinet consider:

               (a)  A phased in inspection start-up?

               ALL STATIONS MUST BE OPEN AND TESTING VEHICLES BY THE BEGINNING
               OF PHASE II.

               (b)  A 12-month Phase I?

               THE DIVISION HAS EXTENDED PROGRAM IMPLEMENTATION TO TEN (10)
               MONTHS.


                                          1

<PAGE>

Question 3.    Section 10.600 - Offeror's Conference

               Will a transcript of the Offeror's conference be taken and will
               it be incorporated into the RFP?

               QUESTIONS SUBMITTED IN WRITING AND THOSE POSED AT THE OFFEROR'S
               CONFERENCE WILL RECEIVE A RESPONSE BY THE DIVISION FOR AIR
               QUALITY AND THE DIVISION OF PURCHASES. THE RESPONSES WILL BECOME
               AN ADDENDUM TO THE RFP.

Question 4.    Section 20.100

               Is a tape of the registration database for the affected are
               available, what is the cost, and in what format is it available?

               A TAPE OF THE REGISTRATION DATABASE IS CURRENTLY UNAVAILABLE. A
               REPORT PROVIDED BY THE DEPARTMENT OF INFORMATION SYSTEMS IS
               ATTACHED (APPENDIX A-1). THIS INFORMATION SUPPLEMENTS APPENDIX A.

Question 5.    Section 20.100

               Will the contractor be required to mail a separate notice or may
               the notice be included with the Registration notices sent out by
               the County Clerk?

               THE CONTRACTOR SHALL MAIL A NOTICE SEPARATE TO THAT OF THE
               REVENUE CABINET.

Question 6.    Section 20.200 - Network Design

               What enforcement measures are in place (KRS) which will not allow
               vehicle owners to register their vehicles outside the program
               area?

               THE REGULATIONS RELATED TO VEHICLE REGISTRATION AND ENFORCEMENT
               CAN BE FOUND IN KENTUCKY REVISED STATUTES, CHAPTERS 186, 186A, 
               AND 189. THE DIVISION FOR AIR QUALITY WILL MONITOR REGISTRATION
               DATA TRENDS AND EVALUATE COUNTER MEASURES IF REGISTRATION FLIGHT
               BECOMES ACUTE. AFFIDAVITS EXECUTED BY COUNTY CLERKS FOR THE
               PURPOSE OF VEHICLE REGISTRATIONS OUTSIDE THE PROGRAM AREA WILL BE
               FORWARDED TO THE DIVISION FOR VERIFICATION.


                                          2

<PAGE>

Question 7.    Section 30.000 2.a

               Radius versus driving distance, possible use of average driving
               distance?

               THE DIVISION FOR AIR QUALITY IS SATISFIED WITH ITS REQUIREMENT
               FOR A PERCENTAGE OF THE POPULATION WITHIN THE 5 MI., 10 MI., AND
               15 MI. RADIUS. AN OFFEROR, HAVING ADDRESSED THIS RFP REQUIREMENT,
               MAY ALSO OFFER AN ALTERNATIVE.

Question 8.    Section 30.000, Phase II (2)

               Could the Commonwealth please provide sample compliance and
               exemption certificates?

               YES (SEE ATTACHED APPENDIX B). HOWEVER, THE OFFERORS ARE
               ENCOURAGED TO PROPOSE ALTERNATIVES. SEE SECTION 31.500 - FORMS,
               OF THE RFP.

Question 9.    Section 31.200, (D) 3.

               Would the Commonwealth allow some queuing lanes to be less than
               150 feet in length as long the total queuing length for all lanes
               at a test station met the requirement?

               THE DIVISION FOR AIR QUALITY PREFERS QUEUING LANES TO BE NO LESS
               THAN 150 FEET. OFFERORS MAY PROPOSE ALTERNATIVES.

Question 10.   Section 30.200 (I)

               Does the Cabinet wish to have stations constructed of masonry or
               will metal structures be sufficient if allowed by zoning?

               THE DIVISION HAS NO PREFERENCE IN THIS MATTER.

Question 11.   Section 31.200, Paragraph P. (3)

               Is it acceptable for the Cabinet to store their audit gases in
               the Station calibration room? The audit gases could be kept in a
               separate locked compartment.

               YES.


                                          3

<PAGE>

Question 12.   Section 31.600

               How many lines are required?  Please indicate the number of
               direct daily lines required and the locations of these sites.

               THE PROGRAM REQUIRES A SUFFICIENT NUMBER OF LINES TO COMMUNICATE
               BETWEEN THE DIVISION'S PROGRAM AREA OFFICES, PROGRAM AREA COUNTY
               CLERKS' OFFICES, THE DIVISION'S FRANKFORT OFFICE, AND THE
               FRANKFORT OFFICE OF THE DEPARTMENT FOR INFORMATION SYSTEMS.


Question 13.   Section 31.600

               How many PC configurations and printers are required and their
               locations?

               ONE SET IN EACH OF THE DIVISION'S PROGRAM AREA OFFICES AND THE
               DIVISION'S FRANKFORT OFFICE.


Question 14.   How many computers will the Cabinet wish to be supplied?

               SEE RESPONSE TO QUESTION 13.


Question 15.   How much does the program area vehicle ownership database cost?
               Media? Format?

               SEE RESPONSE TO QUESTION 4.


Question 16.   Must the mainframe computer be domiciled at the program location?

               NO.


Question 17.   May the contractor make use of the cost benefit of remanufactured
               or used equipment so long as all performance specifications are
               met throughout the duration of the contract?

               YES.


                                          4

<PAGE>


Question 18.   Section 31.600 (B)

               Although chronic background air problems are rare in test
               programs, the contractor has no control over the background air
               concentration levels.  Tests are not performed until the analyzer
               HC hang-up levels are within EPA specified limits.

               THE DIVISION FOR AIR QUALITY BELIEVES THAT THE VENTILATION IN AN
               INSPECTION FACILITY IS THE RESPONSIBILITY OF THE CONTRACTOR.


Question 19.   Section 31.600 (C)

               How would comfort be defined?

               THE TEST LANE WAITING AREAS SHALL BE ENCLOSED, HEATED AND
               VENTILATED.


Question 20.   Section 31.700 - Training

               What are "Cabinet policies"?

               THE REFERENCE TO "CABINET POLICIES" IS REMOVED FROM THIS SECTION
               OF THE RFP.


Question 21.   Section 31.700 - Repair Industry Program

               "The training course shall begin well in advance of the start-up
               of Phase II."  Is there a more specific time frame that the
               Commonwealth has in mind?

               SECTION 60.510 OF THE RFP REQUIRES "A DIAGRAM OR NETWORK USING
               THE CRITICAL PATH METHOD (CPM) ... OF ALL THE SUBTASKS TO BE
               PERFORMED."  THE OFFEROR IS ENCOURAGED TO DEVELOP A TIME LINE FOR
               THE REPAIR INDUSTRY PROGRAM ALONG WITH THE SUBTASKS ASSOCIATED
               WITH THIS PROJECT.


Question 22.   Section 31.700 Paragraph 3 - Repair Industry Program

               Please detail the required computer hardware and software
               training required.

               THE DIVISION FOR AIR QUALITY BELIEVES THIS PARAGRAPH NEEDS NO
               ADDITIONAL CLARIFICATION.


                                          5

<PAGE>


Question 23.   Section 31.800 - Public Information

               Would the cabinet place a dollar amount to be spent on public
               information?

               NO.  THE OFFERORS ARE ENCOURAGED TO DETAIL A PUBLIC INFORMATION
               PROGRAM AND COSTS OF SUCH A PROGRAM.


Question 24.   Section 32.200 - Fleet Testing

               Will the contractor receive a fee from fleet self-testers?

               NO.


Question 25.   Section 32.200 - Fleet Testing

               Is there an estimate of the number of vehicles that may not be
               included in the contractor's predicted test volume?

               NO.  HOWEVER, THE ECONOMICS OF FLEET SELF-TESTING MAY NOT BE
               FEASIBLE.


Question 26.   Section 32.200 - Fleet Testing (D)

               Can the contractor conduct fleet testing during non-normal hours
               of operation?

               THE CONTRACTOR SHOULD CONSIDER CONDUCTING FLEET TESTING DURING
               OFF-PEAK HOURS.  UNDER NO CIRCUMSTANCES SHALL THE PUBLIC BE
               DENIED THE OPPORTUNITY TO RECEIVE AN INSPECTION WHILE THE
               INSPECTION STATIONS ARE OPEN.


Question 27.   Section 32.300 - Test fee collection and accounting

               What portion of the test fee is remitted to the Cabinet?

               KRS 224.20-740, DESCRIBES THE PERCENTAGE OF THE INSPECTION FEE TO
               BE REMITTED TO THE VEHICLE EMISSION CONTROL FUND.  THE CABINET
               HAS NOT DETERMINED ITS COSTS FOR ADMINISTRATIVE OVERSIGHT OF THE
               PROGRAM AT THIS TIME.


                                          6

<PAGE>

Question 28.   Section 32.400 - Reports

               Sections 32.300 and 31.600 reference PCS, are the PC's in
               addition to those using the direct daily lines specified in
               Section 32.600??

               SEE RESPONSE TO QUESTION 12.

Question 29.   Sections 32.600 and 32.700

               Can the mailed notices be combined with other notices for
               registration sent out by the County Clerks?

               NO.  SEE RESPONSE TO QUESTION 5.

Question 30.   Section 33.200 (F) OBD requirement

               THE OFFERORS ARE REQUIRED TO DEMONSTRATE THE ABILITY TO CONFORM
               TO THE OBD STANDARDS AND PROCEDURES AS STATED IN THE FEDERAL
               RULE.

Question 31.   Section 33.300 (C)

               What is the number of diesel vehicles and motorcycles to be
               tested?

               SEE RESPONSE TO QUESTION 4.

Question 32.   Section 33.400 (A) - Gases

               All but the "Span Gas" are IM240 gases and are not used for idle
               test analytical equipment.

               REFERENCES TO GASES, OTHER THAN SPAN GAS, ARE DELETED FROM THIS
               SECTION OF THE RFP.

Question 33.   Section 34.000 - Quality Assurance Requirements

               The Text is from an obsolete version of the IM240 guidance that
               was stricken and replaced with more appropriate requirements ...
               The text is not applicable to an idle test program.

               REFERENCES TO QA REQUIREMENTS RELATED THE IM240 PROCEDURE
               THROUGHOUT THIS RFP SHOULD BE DELETED.


                                          7

<PAGE>

Question 34.   Section 34.100

               The Evaporative Integrity (pressure) Analysis System reference is
               obsolete and has been replaced with new procedures in
               EPA-AA-RSPD-IM-96-1 June 1996.  In programs where the state
               originally required pressure testing most have switched to a more
               consumer friendly gas-cap integrity check.

               THE OFFERORS ARE REQUIRED TO DEMONSTRATE THEIR KNOWLEDGE OF AND
               THEIR ABILITY TO PERFORM THE EVAPORATIVE PRESSURE SYSTEM CHECK AS
               DESCRIBED IN 40 CFR SECTION 85.2227 AND SECTION 85.2235.
               OFFERORS MAY OFFER ALTERNATIVES TO THE USE OF THE PROCEDURE.

Question 35.   Sections 34.200 and 34.300

               These requirements are all from an obsolete IM240 guidance
               document and largely inapplicable for idle testing.

               REFERENCES TO REQUIREMENTS RELATED THE IM240 PROCEDURE THROUGHOUT
               THIS RFP SHOULD BE DELETED.

Question 36.   Section 40.210 - Failure to meet start-up data

               Will a phase-in start up of Phase II testing be considered by the
               Commonwealth?

               SEE RESPONSE TO QUESTION 2.

Question 37.   Section 40.220 (2)

               If the amount of compensation exceeds the funds available in the
               Vehicle Emissions Control Fund, where and how will the
               Commonwealth obtain the funds to fully compensate the contractor?

               THE COMMONWEALTH WILL HONOR ANY FINANCIAL JUDGEMENT RENDERED
               AGAINST IT.

Question 38.   Section 40.220 (4)

               Ownership of computer programs in the event of termination.  Also
               referenced in Sections 40.270 and 45.100.

               IN GENERAL, THE COMMONWEALTH DESIRES A TWENTY YEAR, NONEXCLUSIVE
               LICENSE TO USE THE PROGRAM SOFTWARE.  THE SOURCE AND OBJECT CODES
               WILL BE HELD IN ESCROW BY THE CONTRACTOR.  THE CONTRACT BETWEEN
               THE COMMONWEALTH AND THE CONTRACTOR WILL DETAIL SUCH TRANSFERS.


                                          8

<PAGE>

Question 39.   Section 40.230 - Termination for Default

               Mechanics liens and late or nonpayment of some construction
               related services are a common occurrence when a conflict exists.
               Many times construction related services are contested between
               contractors and purchasers.  To find the inspection contractor in
               default may not allow them the leverage needed to get the
               construction company to deliver a quality product in a timely
               fashion.  We believe this section should be worded to reflect the
               realities of dealing with the construction industry.

               THESE SECTIONS ARE TERMINATION SECTIONS ADDRESSED IN KRS 45A AND
               200 KAR 5:312.

Question 40.   Section 40.300 - Contractor Personnel

               The Commonwealth's ability to require the contractor to reassign
               or otherwise remove from the project an employee is unworkable.
               This is a very sensitive issue and could probably be jointly
               addressed if the need should arise.

               THE DIVISION VIEWS THE VEHICLE EMISSION CONTROL PROGRAM AS A VERY
               PUBLIC PROGRAM AND IN SO MUCH AS THE SUCCESS OF THIS PROGRAM
               DEPENDS ON CONTRACTOR PERSONNEL TO MEET THE NEEDS OF BOTH THE
               DIVISION AND THE PUBLIC, THIS REQUIREMENT OF THE RFP SHALL
               REMAIN.

Question 41.   Section 42.400 - Attorney's Fee

               Will the Commonwealth pay contractors expenses of such action
               should the contractor prevail?

               THIS DECISION IS THE DOMAIN OF A COURT OF COMPETENT JURISDICTION
               IN WHICH SUCH ACTIONS ARE HEARD.

Question 42.   Section 46.000 - Application by County Fiscal Court

               What impact would the transfer of inspection services to a fiscal
               court have on the existing contract?  Would the same guidelines
               apply as under termination for convenience in ... Section 40.260?

               THE SAME TERMINATION FOR CONVENIENCE GUIDELINES WOULD APPLY.


                                          9

<PAGE>

Question 43.   Section 50.050 (2)

               Have the Commonwealth representatives made site visits? If so,
               where? Do they plan additional visits during the procurement
               process?

               THE DIVISION HAS MADE VISITS TO A NUMBER OF VEHICLE INSPECTION
               FACILITIES AND UPON INVITATION, IF THE SCHEDULE ALLOWS, WILL
               CONSIDER ADDITIONAL VISITS DURING THE PROCUREMENT PROCESS.

Question 44.   Section 50.300

               Alternate proposals are not allowed. Are alternatives and/or 
               additional options allowed within one proposal?

               THE OFFEROR MAY OFFER ALTERNATIVES/OPTIONS IN THOSE PORTIONS OF
               THIS RFP WHERE ALTERNATIVES ARE ENCOURAGED.

Question 45.   Section 50.400

               Proprietary and confidentiality designation extended to technical
               aspects of emissions testing system equipment, software and
               operation.

               THAT WHICH IS CONSIDERED PROPRIETARY AND/OR CONFIDENTIAL IS
               ADDRESSED IN 400 KAR 1:060, KRS 61.878 and 224.20-10.

Question 46.   Section 70.000 (C) - Cost Proposal Phase I

               The amount of CMAQ funding available would have a significant
               impact on the contractor's cost and ultimately the inspection
               fee. Should the contractors present their costs without the
               inclusion of the CMAQ funds?

               THE OFFEROR MAY APPLY THE SUM OF ONE MILLION (1,000,000) DOLLARS
               IN FEDERAL CMAQ FUNDS TO ASSIST IN THE PURCHASE OF LAND,
               BUILDINGS AND EQUIPMENT TO THE OFFEROR'S PROPOSAL.


                                          10

<PAGE>

Question 47.   Section 70.100 (b)

               The information on vehicle distribution in Appendix A is not in
               sufficient detail for use in accurately locating inspection
               stations and predicting where vehicles will choose to be tested.
               Is there more detailed information available and could you
               provide that information to the contractors?

               SEE RESPONSE TO QUESTION 4.

Question 48.   Section 70.100 (e)

               The method of test procedure talked about in the RFP is
               confusing. There are numerous references to IM240 test cycle
               specifications. What are/is the test procedure the Commonwealth
               wishes the contractor to provide?

               REFERENCES TO IM240 PROCEDURE THROUGHOUT THIS RFP SHOULD BE
               DELETED.

Question 49.   Section 70.000 (g)

               What amount does the Cabinet anticipate charging on each test fee
               for administrative costs?

               THE AMOUNT WILL BE SUFFICIENT TO COVER THE CABINET'S PROGRAM
               OVERSIGHT COSTS. REFER TO KRS 224.20-740.

Question 50.   What is the flow of information for this procurement?

               THE COMMONWEALTH WILL ACCEPT QUESTIONS UP TO 14 DAYS PRIOR TO THE
               OPENING DATE. THE QUESTIONS MUST BE FAXED OR MAILED TO THE
               DIVISION OF PURCHASES TO BE CONSIDERED. QUESTIONS RECEIVED AFTER
               THIS DATE WILL NOT BE ANSWERED. ANSWERS WILL BE FAXED BACK TO
               VENDORS.

Question 51.   Please discuss the competitive negotiation process.

               THIS PROCUREMENT AS A COMPETITIVE NEGOTIATION FALLS UNDER KRS
               45A.085. THIS STATUTE GIVES THE COMMONWEALTH THE AUTHORITY TO
               CONDUCT WRITTEN OR ORAL DISCUSSIONS WITH ALL RESPONSIBLE OFFERORS
               WHO SUBMIT PROPOSALS DETERMINED TO BE REASONABLY SUSCEPTIBLE FOR
               AWARD OF THE CONTRACT. ALTERNATIVELY, THE COMMONWEALTH MAY AWARD
               A CONTRACT ON THE ORIGINAL SUBMISSION. THE COMMONWEALTH MAY USE
               SEVERAL METHODS OF NEGOTIATIONS, INCLUDING BEST AND FINAL OFFERS.
               IN A BEST AND FINAL OFFER, THE COMMONWEALTH GENERALLY ONLY
               REQUESTS A BEST AND FINAL OFFER ON COST, BUT COULD ASK ON
               TECHNICAL ISSUES AS WELL.

                                          11

<PAGE>

                                     APPENDIX A-1


PROGRAM: DTO52LAA      DEPARTMENT FOR ENVIRONMENTAL PROTECTION         04/04/97
REPORT:  R52XXX                DIVISION FOR AIR QUALITY               PAGE:   1
                              VEHICLE EMISSIONS TESTING
                                    CONTROL TOTALS


<TABLE>
<S>                                           <C>
TOTAL VIDB RECORDS READ                       6,143,865

TOTAL BOONE COUNTY RECORDS WRITTEN              166,351

TOTAL CAMPBELL COUNTY RECORDS WRITTEN            96,870

TOTAL KENTON COUNTY RECORDS WRITTEN             166,351

TOTAL OUTPUT RECORDS WRITTEN                    369,570
</TABLE>


<PAGE>

PROGRAM:  DTO52LAA     DEPARTMENT FOR ENVIRONMENTAL PROTECTION         04/04/97
REPORT:  R1500                 DIVISION FOR AIR QUALITY               PAGE:   1
                              VEHICLE EMISSIONS TESTING
                                    CONTROL TOTALS


<TABLE>
<S>                                             <C>
INPUT RECORDS READ                              369,570

TOTAL SKIPPED--VEHICLE TYPE INVALID               6,018

TOTAL SKIPPED--RES/REG COUNTY INVALID                 0

TOTAL SKIPPED--NOT ON NADA & WGT. > 18000         3,036

TOTAL SKIPPED--ON NADA & WGT. > 18000                 0

TOTAL SKIPPED--CURRENT MODEL YEAR                     0

GRAND TOTAL SKIPPED                               9,054

TOTAL SEGMENTS LOADED                           258,331
</TABLE>

<PAGE>
PROGRAM:    DT052LAA   DEPARTMENT FOR ENVIRONMENTAL PROTECTION         04/04/97
REPORT:     R1500              DIVISION FOR AIR QUALITY              PAGE:    2
                                    CONTROL TOTALS
<TABLE>
<CAPTION>

YEAR:  1997

  COUNTY      # CARS    # TRUCKS  # FARM TRKS    # HOUSECARS     # WRECKERS    # BUSES   # MOTORCYCLE     TOTAL
  <S>         <C>       <C>       <C>            <C>             <C>           <C>         <C>           <C>
   BOON       27,532       7,973           84             14             14          42            516    36,175
   CAMP       26,827       7,078           55             17             25          34            389    34,425
   KENT       46,384      10,836           35             34             32          64            836    58,221
   TOTAL     100,743      25,887          174             65             71         140          1,741   128,821
<CAPTION>

YEAR:  1998

  COUNTY      # CARS    # TRUCKS  # FARM TRKS    # HOUSECARS     # WRECKERS    # BUSES   # MOTORCYCLE     TOTAL
  <S>         <C>       <C>       <C>            <C>             <C>           <C>         <C>           <C>
   BOON       27,255       8,025           85             20             17          32            479    35,913
   CAMP       26,977       7,178           48             19             22          38            431    34,713
   KENT       46,703      11,140           62             31             40          61            847    58,884
   TOTAL     100,935      26,343          195             70             79         131          1,757   129,510
<CAPTION>

YEAR:  1999

  COUNTY      # CARS    # TRUCKS  # FARM TRKS    # HOUSECARS     # WRECKERS    # BUSES   # MOTORCYCLE     TOTAL
  <S>         <C>       <C>       <C>            <C>             <C>           <C>         <C>            <C>
   BOON            0           0            0              0              0           0              0         0
   CAMP            0           0            0              0              0           0              0         0
   KENT            0           0            0              0              0           0              0         0
   TOTAL           0           0            0              0              0           0              0         0
<CAPTION>

YEAR:  TOTAL

  COUNTY      # CARS    # TRUCKS  # FARM TRKS    # HOUSECARS     # WRECKERS    # BUSES   # MOTORCYCLE     TOTAL
  <S>         <C>       <C>       <C>            <C>             <C>           <C>         <C>           <C>
   BOON       54,787      15,998          169             34             31          74            995    72,088
   CAMP       53,804      14,256          103             36             47          72            820    69,138
   KENT       93,087      21,976           97             65             72         125          1,683   117,105
   TOTAL     201,678      52,230          369            135            150         271          3,498   258,331

</TABLE>

<PAGE>


PROGRAM:  DT052LAA  DEPARTMENT FOR ENVIRONMENTAL PROTECTION           04/04/97
REPORT:   R1500          DIVISION FOR AIR QUALITY                PAGE:       3
                         VEHICLE EMISSIONS TESTING
                              CONTROL TOTALS

<TABLE>

          <S>                 <C>                      <C>
          41001-              ALEXANDRIA               12,137
          41005-              BURLINGTON               11,392
          41006-              GRANTS LICK                 621
          41007-              CALIFORNIA                3,123
          41009-              CONSTANCE                    27
          41011-              COVINGTON                18,329
          41012-              COVINGTON                   259
          41014-              COVINGTON                 4,888
          41015-              COVINGTON                15,828
          41016-              COVINGTON                 4,583
          41017-              COVINGTON                28,442
          41018-              COVINGTON                19,856
          41019-              COVINGTON                    20
          41030-              BRACHT                    1,048
          41033-              FISKBURG                    551
          41042-              FLORENCE                 30,775
          41048-              HEBRON                    5,215
          41051-              INDEPENDENCE             11,639
          41053-              KENTON                       62
          41059-              MELBOURNE                 2,575
</TABLE>

<PAGE>

PROGRAM:  DT052LAA  DEPARTMENT FOR ENVIRONMENTAL PROTECTION           04/04/97
REPORT:   R1500          DIVISION FOR AIR QUALITY                PAGE:       4
                         VEHICLE EMISSIONS TESTING
                              CONTROL TOTALS

<TABLE>

          <S>                 <C>                      <C>
          41063-              MORNING VIEW             2,874
          41071-              NEWPORT                 14,835
          41072-              NEWPORT                    162
          41073-              NEWPORT                  4,525
          41074-              NEWPORT                  4,050
          41075-              NEWPORT                 11,299
          41076-              NEWPORT                 10,332
          41080-              PETERSBURG               1,329
          41085-              SILVER GROVE               807
          41091-              UNION                    6,931
          41092-              VERONA                   1,236
          41094-              WALTON                   7,160
                              UNKNOWN                 21,421
                              TOTAL                  258,331
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

PROGRAM:  DT052LAA                                 DEPARTMENT FOR ENVIRONMENTAL PROTECTION                                04/04/97
REPORT:   R1500                                           DIVISION FOR AIR QUALITY                                      PAGE:    5
                                                          VEHICLE EMISSIONS TESTING
                                                               CONTROL TOTALS

MODEL YEARS    68-80

    ZIP         # CARS       # TRUCKS    # FARM TRKS    # HOUSECARS     # WRECKERS        # BUSES      # MOTORCYCLE          TOTAL
<S>             <C>          <C>         <C>            <C>             <C>               <C>          <C>                  <C>
  41001            598            556             26              6              6              1                32          1,225

  41005            692            569             20              3              4              7                42          1,337

  41006             33             39              4              0              0              0                 1             77

  41007            198            225             30              0              3              0                14            470

  41009              6              2              0              0              0              0                 1              9

  41011          1,705            625              2              4              8              6                57          2,407

  41012             17             11              0              0              0              0                 0             28

  41014            457            166              1              1              3              1                15            644

  41015          1,297            670              9             12              6              5                65          2,064

  41016            421            174              1              1              1              1                11            610

  41017          1,262            554              1              8              4              1                63          1,893

  41018          1,326            550              0              8              1              3                57          1,945

  41019              1              1              0              0              0              0                 0              2

  41030             72             77              2              1              0              0                 4            156

  41033             58             41              3              1              0              0                 5            108

  41042          1,626            724             16             10              2              1                79          2,458

  41048            293            215              9              0              0              1                21            539

  41051            715            608             13              7              4              1                32          1,380

  41053              4              6              0              0              0              0                 0             10

  41059            192            177              5              3              1              0                 7            385
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

PROGRAM:      DT052LAA                             DEPARTMENT FOR ENVIRONMENTAL PROTECTION                                04/04/97
REPORT:       R1500                                       DIVISION FOR AIR QUALITY                                      PAGE:    6
                                                          VEHICLE EMISSIONS TESTING
                                                               CONTROL TOTALS

MODEL YEARS    68-80

    ZIP         # CARS       # TRUCKS    # FARM TRKS    # HOUSECARS     # WRECKERS        # BUSES      # MOTORCYCLE          TOTAL
<S>             <C>          <C>         <C>            <C>             <C>               <C>          <C>                  <C>
  41063            222            280             22              3              1              0                17            545

  41071          1,479            579              1              4              4              2                40          2,109

  41072             17             83              0              0              0              0                 0            100

  41073            390            156              0              3              2              0                15            566

  41074            445            213              0              0              1              3                20            682

  41075            530            176              2              4              2              0                21            735

  41076            505            336              6              2              2              1                29            881

  41080            106            136              8              0              0              0                 6            256

  41085             64             55              0              1              1              0                 2            123

  41091            415            354             23              6              7              2                19            826

  41092             71             93              8              0              0              1                 6            179

  41094            466            377             25              4              1              1                24            898

   UNKN            345            221              6              3              0              0                15            590

  TOTAL         16,028          9,049            243             95             64             38               720         26,237
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

PROGRAM:      DT052LAA                             DEPARTMENT FOR ENVIRONMENTAL PROTECTION                                04/04/97
REPORT:       R1500                                       DIVISION FOR AIR QUALITY                                      PAGE:    7
                                                          VEHICLE EMISSIONS TESTING
                                                               CONTROL TOTALS

MODEL YEARS    81-UP

    ZIP         # CARS       # TRUCKS    # FARM TRKS    # HOUSECARS     # WRECKERS        # BUSES      # MOTORCYCLE          TOTAL
<S>             <C>          <C>         <C>            <C>             <C>               <C>          <C>                  <C>
  41001          7,799          2,907             10              3              7             47               139         10,912

  41005          7,272          2,597             15              2              1              5               163         10,055

  41006            387            152              0              0              0              0                 5            544

  41007          1,777            831              9              0              1              0                35          2,653

  41009             14              4              0              0              0              0                 0             18

  41011         13,282          2,410              0              6             11             33               180         15,922

  41012            169             59              0              0              2              0                 1            231

  41014          3,462            709              0              0              3              1                69          4,244

  41015         10,963          2,590              3              2              4              8               194         13,764

  41016          3,160            734              0              2              3              3                71          3,973

  41017         22,545          3,634              1              2             10             14               343         26,549

  41018         14,442          3,217              3              1              4              9               235         17,911

  41019             14              4              0              0              0              0                 0             18

  41030            597            273              2              0              0              0                20            892

  41033            300            128              2              0              1              0                12            443

  41042         22,743          5,167             11              3             11             45               337         28,317

  41048          3,543          1,051              6              0              1              0                75          4,676

  41051          7,642          2,429              6              2              4             37               139         10,259

  41053             33             17              0              0              0              0                 2             52

  41059          1,543            613              5              1              0              1                27          2,190
</TABLE>

<PAGE>

PROGRAM:  DT052LAA       DEPARTMENT FOR ENVIRONMENTAL PROTECTION        04/04/97
REPORT:   R1500                DIVISION FOR AIR QUALITY                 PAGE:  8
                              VEHICLE EMISSIONS TESTING
                                    CONTROL TOTALS
<TABLE>
<CAPTION>

MODEL YEARS    81-UP

 ZIP          # CARS    # TRUCKS  # FARM TRKS   # HOUSECARS      # WRECKERS     # BUSES   # MOTORCYCLE     TOTAL
<S>          <C>        <C>       <C>           <C>              <C>            <C>       <C>            <C>
41063          1,520         758            8              1              0           1             41     2,329
41071         10,432       2,142            0              1              3           9            139    12,726
41072             48          13            0              0              0           0              1        62
41073          3,257         655            0              2              1           1             43     3,959
41074          2,734         589            0              0              1           4             40     3,368
41075          9,272       1,177            0              2              0           0            113    10,564
41076          7,626       1,722            3              3              8           2             87     9,451
41080            740         313            3              2              0           0             15     1,073
41085            523         149            0              0              3           2              7       684
41091          4,526       1,466           15              0              2           1             95     6,105
41092            695         341            2              1              0           0             18     1,057
41094          4,471       1,673           15              3              2           2             96     6,262
UNKN          18,119       2,657            7              1              3           8             36    20,831
TOTAL        185,650      43,181          126             40             86         233          2,778   232,094

</TABLE>



<PAGE>

PROGRAM:  DT052LAA       DEPARTMENT FOR ENVIRONMENTAL PROTECTION        04/04/97
REPORT:   R1500                DIVISION FOR AIR QUALITY                 PAGE:  9
                              VEHICLE EMISSIONS TESTING
                                    CONTROL TOTALS
<TABLE>
<CAPTION>

MODEL YEARS    TOTAL

 ZIP          # CARS    # TRUCKS  # FARM TRKS   # HOUSECARS      # WRECKERS     # BUSES   # MOTORCYCLE     TOTAL
<S>          <C>        <C>       <C>           <C>              <C>            <C>       <C>            <C>
41001          8,397       3,463           36              9             13          48            171    12,137
41005          7,964       3,166           35              5              5          12            205    11,392
41006            420         191            4              0              0           0              6       621
41007          1,975       1,056           39              0              4           0             49     3,123
41009             20           6            0              0              0           0              1        27
41011         14,987       3,035            2             10             19          39            237    18,329
41012            186          70            0              0              2           0              1       259
41014          3,919         875            1              1              6           2             84     4,888
41015         12,260       3,260           12             14             10          13            259    15,828
41016          3,581         908            1              3              4           4             82     4,583
41017         23,807       4,188            2             10             14          15            406    28,442
41018         15,768       3,767            3              9              5          12            292    19,856
41019             15           5            0              0              0           0              0        20
41030            669         350            4              1              0           0             24     1,048
41033            358         169            5              1              1           0             17       551
41042         24,369       5,891           27             13             13          46            416    30,775
41048          3,836       1,266           15              0              1           1             96     5,215
41051          8,357       3,037           19              9              8          38            171    11,639
41053             37          23            0              0              0           0              2        62
41059          1,735         790           10              4              1           1             34     2,575


</TABLE>


<PAGE>

PROGRAM:  DT052LAA       DEPARTMENT FOR ENVIRONMENTAL PROTECTION        04/04/97
REPORT:   R1500                DIVISION FOR AIR QUALITY                 PAGE: 10
                              VEHICLE EMISSIONS TESTING
                                    CONTROL TOTALS
<TABLE>
<CAPTION>

MODEL YEARS    TOTAL

 ZIP          # CARS    # TRUCKS  # FARM TRKS   # HOUSECARS      # WRECKERS     # BUSES   # MOTORCYCLE     TOTAL
<S>          <C>        <C>       <C>           <C>              <C>            <C>       <C>            <C>
41063          1,742       1,038           30              4              1           1             58     2,874
41071         11,911       2,721            1              5              7          11            179    14,835
41072             65          96            0              0              0           0              1       162
41073          3,647         811            0              5              3           1             58     4,525
41074          3,179         802            0              0              2           7             60     4,050
41075          9,802       1,353            2              6              2           0            134    11,299
41076          8,131       2,058            9              5             10           3            116    10,332
41080            846         449           11              2              0           0             21     1,329
41085            587         204            0              1              4           2              9       807
41091          4,941       1,820           38              6              9           3            114     6,931
41092            766         434           10              1              0           1             24     1,236
41094          4,937       2,050           40              7              3           3            120     7,160
UNKN          18,464       2,878           13              4              3           8             51    21,421
TOTAL        201,678      52,230          369            135            150         271          3,498   258,331

</TABLE>

<PAGE>

                                                                    APPENDIX B


                             PERMIT APPLICATION


                                TO OPERATE A
                                FLEET VEHICLE
                             INSPECTION STATION



                                  DEP-V001
                                 (MAY 1991)


                          COMMONWEALTH OF KENTUCKY
           NATURAL RESOURCES AND ENVIRONMENTAL PROTECTION CABINET
                   DEPARTMENT FOR ENVIRONMENTAL PROTECTION
                          DIVISION FOR AIR QUALITY
                      VEHICLE EMISSION CONTROL PROGRAM
                             316 ST. CLAIR MALL
                          FRANKFORT, KENTUCKY 40601
                               (502) 564-3382

<PAGE>
                                               
            COMMONWEALTH OF KENTUCKY                          DEP-V001
        Natural Resources & Environmental            Administrative Information
               Protection Cabinet
     Department for Environmental Protection               AGENCY USE ONLY
            Division for Air Quality
        Vehicle Emission Control Program             ID No:
               316 St. Clair Mall
            Frankfort, Kentucky 40601                DATE RECEIVED:
                 (502) 564-3382

               PERMIT APPLICATION
                  TO OPERATE A
                 FLEET VEHICLE
               INSPECTION STATION

KRS 224.476 authorizes fleet owners or operators to
apply for a permit to establish a fleet inspection
station, on forms prescribed by the Cabinet.  401 
KAR 65:010 prescribes the format for the fleet 
vehicle inspection station permit.  The completion
and return of information on this form is therefore
required.  Failure to supply information required or
deemed necessary by the Division to enable it to act
upon the application may result in denial of the 
fleet inspection station permit.
                                                     LOG No:


1.  OFFICIAL COMPANY or AGENCY NAME (ALSO ENTER PLANT OR DIVISION NAME, IF ANY):



2.  COMPANY or AGENCY MAILING ADDRESS:


    Street or Box No.         City         County         State         Zip Code

3.  LOCATION OF MAIN OFFICE OR HEADQUARTERS:


    Street                    City         County         State         Zip Code

4.  LOCATION OF FLEET IF DIFFERENT THAN ABOVE (Use additional sheets if 
    necessary):

    Location:_______________________________  Number of vehicles:______________
    Location:_______________________________  Number of vehicles:______________
    Location:_______________________________  Number of vehicles:______________

5.  NAME, TITLE, AND ADDRESS, (if different than above) OF PERSON EXERCISING 
    ADMINISTRATIVE CONTROL OVER COMPANY OR AGENCY:

    NAME:                                  TITLE:

    Street or Box No.         City         County         State         Zip Code

6.  NAME AND TITLE OF PERSON TO CONTACT ON VEHICLE TESTING MATTERS:


    NAME                                   TITLE

7.  TELEPHONE NUMBER (WITH AREA CODE) AND BUSINESS MAILING ADDRESS OF CONTACT
    PERSON:

    (    )

    Street or Box No.         City         County         State         Zip Code

<PAGE>
                                                                      DEP-V001
                                                                      Continued

8.  GENERAL NATURE OF BUSINESS (e.g., principal products, services) AND 
    STANDARD INDUSTRIAL CLASSIFICATION CODE(S):

    NATURE:                                CODE(S):


9.  PURSUANT TO 401 KAR 65:010, APPLICATION IS HEREBY MADE FOR:

    [ ]  A permit to operate a fleet vehicle inspection station.

    [ ]  A permit renewal to operate a fleet vehicle inspection station.

    A check for the amount of $200, payable to the KENTUCKY STATE TREASURER, 
    shall accompany this application.

10. FEE PAYMENT SCHEDULE:

    Indicate which of the following payment schedules will apply (Checks 
    shall be made payable to the KENTUCKY STATE TREASURER):

    [ ]  A separate check will be submitted for each compliance or exemption 
         certificate issued.

    [ ]  A check will be submitted weekly for all the compliance or exemption 
         certificates issued during the week.

    [ ]  A check will be submitted monthly for all the compliance or exemption
         certificates issued during the month.

    [ ]  Other:_______________________________________________________________
         _____________________________________________________________________

11. INDICATE THE TYPE AND NUMBERS OF FORMS ATTACHED AS PART OF THIS APPLICATION:

    DEP                                DEP

    ____ V001A Testing Schedule for    ____ V001C Vehicle Maintenance Schedule
         Fleet Vehicles                     & Record

    ____ V001B Employee Training       ____ V001D Fleet Testing Equipment & 
         Schedule                           Procedures

12. NAME OF PERSON SUBMITTING APPLICATION (Type or Print)   TITLE   PHONE NUMBER



13. ADDRESS OF PERSON SUBMITTING APPLICATION:



    Street or Box No.         City         County         State         Zip Code

14. IMPORTANT:  APPLICATIONS WILL BE RETURNED IF THEY ARE NOT SIGNED.  
    Applications shall be signed by the corporate president, his authorized 
    agent, fleet owner or operator, highest elected official, or equivalent.

    SIGNATURE OF PERSON SUBMITTING APPLICATION            DATE OF APPLICATION

<PAGE>

                        VEHICLE MAINTENANCE SCHEDULE & RECORD
                              (Repeat for Each Vehicle)

Vehicle: ________________________________________________________     DEP-V001C
VIN:     __________________________ Fleet: ______________________       (5/91)

<TABLE>
<CAPTION>

                                                       MAINTENANCE
                    MAINTENANCE                        RELATED TO
     DATE           PERFORMED           MECHANIC       EMISSIONS? Y/N

     <S>            <C>                 <C>            <C>








</TABLE>


<PAGE>

                       FLEET TESTING EQUIPMENT & PROCEDURES           DEP-V001D
                     (Attach additional sheets, if necessary)           (5/91)

1.   The following equipment will be used for testing fleet vehicles: (Also
     attach manufacturer's specifications and guaranteed performance data for
     the equipment that will be used to test the fleet vehicles.)








2.   The following procedures will be used for the emissions test (using 401 KAR
     65:010, Section 6 as the basis for the test procedure):








<PAGE>

                         FLEET TESTING EQUIPMENT & PROCEDURES      DEP-V001D
                                                                   (5/91) Cont.

3.   The following procedures will be used for issuing compliance or exemption
     certificates, including repair cost exemption certificates. Documentation
     for all certificates shall be maintained, including permanent and temporary
     exemptions.








4.   Describe the process under which results of the tests and issuance of the
     certificates will be integrated into the record keeping system of the
     independent contractor who operates the vehicle emission control program in
     the program area.









<PAGE>


                         FLEET TESTING EQUIPMENT & PROCEDURES      DEP-V001D
                                                                   (5/91) Cont.

5.   Describe the daily and hourly quality assurance procedures that will be
     used for assuring the test equipment is operating properly.

<PAGE>
VEHICLE                                                          ---------------
EMISSIONS                                                               DEP
CONTROL                                                               V002b
PROGRAM                                                          ---------------

                                       
                              VEHICLE REPAIR FORM
      KENTUCKY NATURAL RESOURCES AND ENVIRONMENTAL PROTECTION CABINET
                    DEPARTMENT FOR ENVIRONMENTAL PROTECTION
                            DIVISION FOR AIR QUALITY

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
                         REPAIRS MADE FOR FAILURE TYPE
                        (ALL RECEIPTS MUST BE INCLUDED):                                                      PARTS          LABOR
- -----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>                                                                                          <C>            <C>
CO ONLY          AIR FILTER -- Checked & replaced, if necessary
                 PCV VALVE -- Checked & replaced, if necessary
                 AIR/FUEL MIXTURE -- Set to manufacturer's specifications, if adjustable
                 IDLE SPEED -- Set to manufacturer's specifications; if adjustable
                 CHOKE -- Checked for proper operation & repaired, if necessary
                 FLOAT, POWER VALVES, NEEDLES, SEAT, AND JETS -- checked & repaired, if necessary
                 OTHER -- Specify
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
HC ONLY          VACUUM HOSES -- Checked for routing leaks & repaired as necessary
                 SPARK PLUGS -- Checked & replaced, if necessary
                 PLUG WIRES -- Checked & replaced, if necessary
                 DISTRIBUTOR -- Checked points, rotor cap & advanced, if necessary
                 DWELL/TIMING -- Checked & set to manufacturer's specifications, if adjustable
                 EGR VALVE -- Checked & replaced, if necessary
                 CARBURETOR OR FUEL INJECTOR -- Repaired or replaced
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
NOx ONLY         EGR VALVE -- Checked & replaced, if necessary
                 EGR CONTROLS -- Checked & replaced, if necessary
                 EGR PASSAGE -- Checked for obstruction
                 TIMING -- Checked & set to manufacturers specifications, if adjustable
                 NOx SENSOR -- Checked & replaced if necessary
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
HC, CO & NOx     CATALYTIC CONVERTER -- Checked & replaced, if necessary
                 OXYGEN SENSOR -- Checked & replaced, if necessary
                 ELECTRONIC CONTROL MODULE COMPUTER
                 SECONDARY AIR SYSTEM
                 NOx SENSOR
                 EGR SYSTEM -- Checked & replaced, if necessary
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
EVAPORATIVE      VENT LINES -- Checked & replaced, if necessary
 SYSTEMS         EVAPORATIVE CANISTER -- Checked & replaced, if necessary
                 CANISTER SOLENOIL -- Checked & replaced, if necessary
                 FUEL TANK -- Checked & replaced, if necessary
                 OTHER -- Specify:
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
DIESEL ENGINE    AIR FILTER -- Self Repair Must Replace (Bring Receipts)
OPACITY FAILURE  PCV SYSTEM -- Check & repair, if necessary
                 PUMP TIMING -- Check and set to manufacturers specifications, if adjustable
                 INJECTORS -- Check & replace, if necessary
                 INJECTOR PUMP -- Check and recalibrate, if necessary
                 OTHER -- Specify
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
CERTIFICATION OF REPAIRS MADE:

I certify under penalty of law that I have completed the above indicated repairs and bought the 
indicated parts in an attempt to have this vehicle pass the emissions test.

- -----------------------------------------------------------------------------------------------------------------------------------

Owners Name (Print)                               Date                                                        TOTAL          TOTAL
- -------------------------------------------------------------------------------------------------             PARTS          LABOR
                                                                                                              COSTS          COSTS
Signature
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------

Facility Performing Repair (Print)
- ------------------------------------------------------------------------------------------------- 
                                Repair
Federal ID Number                Date              Phone
- ------------------------------------------------------------------------------------------------- 

I certify under penalty of law that I have completed the above indicated repairs solely in an 
attempt to have this vehicle pass the emissions test.                                                              TOTAL SPENT
- -----------------------------------------------------------------------------------------------------------------------------------

Mechanics Name (Print)                              Signature
- -----------------------------------------------------------------------------------------------------------------------------------
MECHANICS COMMENTS



- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>


B111-18                        COMMONWEALTH OF KENTUCKY
REV. 02/92                FINANCE AND ADMINISTRATION CABINET
                                DIVISION OF PURCHASES

                                    ADDENDUM NO. 2
INVITATION NO:  IT008985                                      AOC DATE: 10/22/97

       AOC ID:  CO022322                                  OPENING DATE: 10/30/97

    BID TITLE:  VEHICLE INSPECTION PROGRAM

    REASON FOR CHANGE:

     EXTENSION OF OPENING DATE AND ADDITION OF QUESTIONS AND ANSWERS.  (2 PAGES)

          The opening date has been changed to read:  11/14/97






*    Bidder must acknowledge receipt of this and any addenda, either with bid or
     by separate letter.  Acknowledgement must be received in the office of the
     Division of Purchases, New Capitol Annex Building, Frankfort, Kentucky not
     later than 4:30 P.M. EDT on 11/14/97.  If by separate letter, the following
     information must be placed in the lower left hand corner of the envelope:

          Invitation No.:  IT008985
                     for:  VEHICLE INSPECTION PROGRAM
            Opening Date:  11/14/97


                         By NANCY HAGGERTY  /s/ Nancy Haggerty
                             Authorized Agent, Division of Purchases


Receipt acknowledge
                    ---------------------------------------------
                              Firm

                         By
                            -------------------------------------
                              Authorized Agent

*  NOTE:  One copy of this form must be signed and returned


<PAGE>

                                      Addendum 2
                              Vehicle Inspection Program


1.   Is the Program Representative mentioned in the last sentence of the second
     paragraph on page 6 a contractor employee or the Commonwealth's employee?

     AN EMPLOYEE OF THE COMMONWEALTH.

2    Should the reference to Part 6.3 in Item 7 on page 8 refer to Section
     32.400 instead?

     YES.

3.   Per the requirement to test vehicles of equal to or less than 18,000 pounds
     GVW in the stations (p.11), can we assume that any officially licensed
     vehicles over this weight do not need to be tested in the lanes?  Or are
     there no officially licensed vehicles over 18,000 pounds GVW?

     IF SUCH VEHICLES EXIST, THEY NEED NOT BE TESTED "IN THE LANES".

4.   Was some information specifying functions not included in Section 32.600?

     NO. SECTIONS 32.700 THROUGH 33.000 RELATE TO 32.600.

5.   Do proposals need to remain valid for six months as stated in Section
     50.550 or 90 days as stated in Section 60.100?

     90 DAYS

6.   Does the "number of personnel engaged in installation activities" referred
     to in Section 60.310 refer to the number currently engaged in such
     activities or the number capable of/experienced in such activities?

     CURRENTLY ENGAGED IN INSTALLATION ACTIVITIES.

7.   What does "rollover lines" mean in the last sentence on page 63?

     ROLLOVER LINES REFER TO THE NUMBER OF TELEPHONE LINES NEEDED TO RECEIVE,
     HOLD, ROUTE TO A RECORDED MESSAGE OR NEXT AVAILABLE OPERATOR, CALLS TO THE
     INSPECTION FACILITIES.


<PAGE>

Addendum 2
Vehicle Inspection Program

8.   Is the "administrative cost" referred to in the pricing schedule the
     Cabinet administrative cost?

     YES.

9.   We understand from the answer to previous Question 13 that one PC and
     printer are required in each of the Division's program area offices as well
     as the office in Frankfort.  How many program area offices need to be
     equipped?  Is three the correct number of county clerk offices that need to
     be equipped?

     THE INSPECTION FACILITIES WILL BE CONNECTED WITH THE STATE A.V.I.S.
     COMPUTER NOT DIRECTLY TO THE COUNTY CLERKS' OFFICES.

10.  Could the specific test procedure be detailed and what data will the
     contractor be required to retrieve and store from the procedure?

     (1) IDLE, IDLE WITH LOADED PRE-CONDITIONING, OPACITY, EVAPORATIVE PRESSURE
     TEST, AND ANTI-TAMPERING.  (2) REGISTRATION INFORMATION AND INSPECTION
     RESULTS.

11.  The section 60.600 referred to in Section 60.000 doesn't exist.  Will the
     Cabinet provide that section or remove the required proposal section called
     "System Schedule"?

     THE LAST BULLET IN SECTION 60.000 "SYSTEM SCHEDULE (60.600)" IS DELETED.

12.  Section 60.320 requires financial statements from subcontractors.  Many
     smaller private firms are hesitant to provide such information.  Can this
     requirement be limited to major subcontractors over a specified dollar
     amount and can this requirement be applicable to only the subcontractors
     concerned in Phase 1 of the contract (Real estate, construction, etc.)?

     THE COMMONWEALTH HAS DETERMINED THAT THE FINANCIAL STATEMENTS FOR ALL
     SUBCONTRACTORS PAID MORE THAN $100,000 SHALL BE SUBMITTED.

<PAGE>

                               COMMONWEALTH OF KENTUCKY
B111-18                   FINANCE AND ADMINISTRATION CABINET
REV. 02/92                      DIVISION OF PURCHASES

                                    ADDENDUM NO. 3


INVITATION NO: IT008985                                       AOC DATE: 11/12/97

       AOC ID: CO022843                                   OPENING DATE: 11/14/97

    BID TITLE: VEHICLE INSPECTION PROGRAM

    REASON FOR CHANGE:

          QUESTIONS AND ANSWERS ADDED TO RFP.


                    The terms have been changed as follows:
                              QUESTIONS AND ANSWERS ADDED TO RFP.








*    Bidder must acknowledge receipt of this and any addenda, either with bid or
     by separate letter. Acknowledgement must be received in the office of the
     Division of Purchases, New Capitol Annex Building, Frankfort, Kentucky not
     later than 4:30 P.M. EDT on 11/14/97. If by separate letter, the following
     information must be placed in the lower left hand corner of the envelope:

               Invitation No.:     IT008985
                          for:     VEHICLE INSPECTION PROGRAM
                 Opening Date:     11/14/97



                              By NANCY HAGGERTY /s/ Nancy Haggerty
                                   Authorized Agent, Division of Purchases



Receipt acknowledge
                    ---------------------------------------------------
                              Firm


                    By
                       ------------------------------------------------
                         Authorized Agent


*    NOTE: One copy of this form must be signed and returned


<PAGE>

                                      ADDENDUM 3
                                       IT008985

1.   Please confirm that the desired opacity test for diesels and motorcycles is
     an idle TEST. This is not a recommended procedure since the majority of
     engine smoke occurs under load or acceleration.

RESPONSE:      THE TEST FOR DIESEL POWERED VEHICLES AND MOTORCYCLES IS AN IDLE
               OPACITY TEST.

2.   Please confirm that the requirement to issue mailers does not include
     tracking and the mailing of follow-up of warning notices for no-shows.

RESPONSE:      THE MAILING OF FOLLOW-UP AND/OR WARNING NOTICES WILL BE THE
               RESPONSIBILITY OF THE DIVISION FOR AIR QUALITY.

3.   Can you elaborate on the responsibilities included in the management of
     fleet self-testing? Does it include periodic quality assurance checks on
     the fleet owners test equipment? Is the Contractor required to specify or
     approve the test equipment used by the fleet owner? Can the fleet owner
     purchase a BAR90 analyzer and perform two-speed Idle tests, without a
     dynamometer, or must the fleet owner purchase equipment to perform the
     exact same tests as the Contractor? Does this task also include training
     and auditing of the fleet owners Inspectors?

RESPONSE:      OVERSIGHT OF FLEET-SELF-TESTERS INCLUDES QUALITY ASSURANCE CHECKS
               OF THE TEST EQUIPMENT.

               THE DIVISION WILL REVIEW APPLICATIONS SUBMITTED TO PERFORM
               FLEET-SELF-TESTING. THE DIVISION WILL VERIFY THE ABILITY OF THE
               APPLICANT TO MEET THE SAME STANDARDS FOR TRAINING, TEST
               PERFORMANCE AND RECORD KEEPING REQUIRED OF THE CONTRACTOR CHOSEN
               AS A RESULT OF THIS RFP.


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS FINANCIAL INFORMATION EXTRACTED FROM THE ENVIROTEST
SYSTEMS CORP. FORM 10-Q FOR THE NINE MONTHS ENDED JUNE 30, 1998 AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               JUN-30-1998
<CASH>                                          32,702
<SECURITIES>                                    28,127
<RECEIVABLES>                                   12,384
<ALLOWANCES>                                       787
<INVENTORY>                                          0
<CURRENT-ASSETS>                                79,571
<PP&E>                                         323,615
<DEPRECIATION>                                  76,972
<TOTAL-ASSETS>                                 382,869
<CURRENT-LIABILITIES>                           46,854
<BONDS>                                        355,285
                                0
                                          0
<COMMON>                                           166
<OTHER-SE>                                    (14,875)
<TOTAL-LIABILITY-AND-EQUITY>                   382,869
<SALES>                                        122,706
<TOTAL-REVENUES>                               122,706
<CGS>                                           74,612
<TOTAL-COSTS>                                   74,612
<OTHER-EXPENSES>                                    60
<LOSS-PROVISION>                                     0
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