ILLINOIS POLLUTION CONTROL BOARD
    December 1,
    1994
    IN THE MATTER OF:
    )
    )
    ENHANCED VEHICLE INSPECTION
    AND
    )
    R94-20
    MAINTENANCE
    (I/M) REGULATIONS
    )
    (Identical-in-Substance Rules)
    AMENDMENTS 35 ILL.
    ADM.
    CODE
    )
    240
    Adopted Rule. Final Order.
    OPINION
    AND
    ORDER OF THE BOARD
    (by G. Tanner Girard):
    This matter is before the Board on a July 20,
    1994 proposal
    filed by the Illinois Environmental Protection Agency (Agency).
    The Agency filed this proposal pursuant to Section 28.4(g) of the
    Environmental Protection Act
    (Act)
    (415 ILCS 5/28.4(g)
    (1992))
    and Section 13B-20 of the Vehicle Emission Inspection Law of 1995
    (VEIL)
    (625 ILCS 5/13B-20, as added by P.A. 88-533, effective
    January 18,
    1994.
    By this opinion and order the Board adopts amendments that
    pertain to a vehicle inspection and maintenance program for the
    Chicago and metropolitan East St. Louis areas of the state.
    The
    purpose is to aid the Illinois Environmental Protection Agency
    (Agency)
    in assembling an acceptable State Implementation Plan
    (SIP)
    for ozone for these two areas of the state for submission
    to the U.S. Environmental Protection Agency
    (U.S.
    EPA).
    As discussed more fully below, this proceeding involves
    Board adoption of one segment of a set of regulations to provide
    for an enhanced vehicle emissions inspection and maintenance
    (I/H) program for Illinois.
    Another segment is involved in
    docket R94-19, which bears a nearly identical caption.
    This
    proceeding involves testing for emissions from on—board vehicle
    fuel evaporative emissions.
    R94-19 involves testing vehicle
    engine exhaust emissions.
    These two dockets represent the whole
    of the Board’s rules of the enhanced I/H program.
    The Agency
    will independently implement other aspects of the program.
    Sections 28.4(g) of the Act and 13B-20(a)
    of VEIL provide
    that Section 5 of the Administrative Procedure Act
    5
    ILCS 100/5-
    35
    & 5—40
    (1992)
    and Title VII
    (Sections 26 through 29)
    of the
    Act do not apply to this proceeding.
    Thus,
    this proceeding was
    not subject to First Notice or Second Notice review by the Joint
    Committee on Administrative Rules.
    Rather, the Board caused a
    Notice of Proposed Amendments to Appear in the Illinois Rec~ister.
    After receiving public comments on the proposed amendments for a
    period of 45 days after that date of publication, the Board was
    free to proceed to adopt amendments based on the Agency’s
    proposal.
    The Board delayed this final action for a short time
    in response to a request from the Agency that we adopt these

    2
    amendments simultaneously with the companion R94—19 amendments,
    which we are also adopting by a separate opinion and order today.
    The Board’s responsibility in this matter arises from the
    Environmental Protection Act (Act)
    415
    ILCS
    5
    (1992).
    The
    Board is charged therein to “determine, define and implement the
    environmental control standards applicable in the State of
    Illinois”.
    More generally, the Board’s rulemaking charge is
    based on the system of checks and balances integral to Illinois
    environmental governance: the Board bears responsibility for the
    rulemaking and principal adjudicatory functions; the Illinois
    Environmental Protection Agency is responsible for carrying out
    the principal administrative duties.
    The latter’s duties include
    administering today’s regulation.
    Procedural Background
    On July 20,
    1994, the Agency filed this proposal for
    rulemaking.
    The Board accepted the proposal for hearing and
    adopted a proposal for public comment on July 21,
    1994.
    A Notice
    of Proposed Amendments appeared in the Illinois Register on
    August 12,
    1994,
    at 18 Iii.
    Reg.
    12097.
    The Board does not normally conduct public hearings in
    identical—in—substance proceedings, but we conducted a hearing in
    this matter on September 8,
    1994.
    Since this proposal will
    ultimately result in a state implementation plan
    (SIP) revision,
    federal law requires that the state conduct a hearing.
    The Board
    conducted that hearing so that it coordinated with the hearings
    in docket R94-19; we held the two hearings at the same location
    and on the same morning.
    At that hearing, the Agency made
    statements in support of its program.
    No member of the public
    appeared to testify at that hearing.
    The 45-day public comment period began August 12, 1994 and
    expired on September 25, 1994.
    The Board delayed adopting this
    proceeding at the suggestion of the Agency, so that we could
    adopt these amendments together with those involved in R94-19 for
    near—simultaneous filing with the Secretary of State.
    During the public comment period, the Board received one
    public comment:
    PC 1 received September 12,
    1994, Office of the Secretary of
    State,
    Index Department, Administrative Code Division
    (by Connie Bradway, dated September 6,
    1994)
    By PC 1, the Secretary of State suggested a correction to the
    questionnaire that would appear in the Notice of Adopted
    Amendments.
    The Secretary of State did not suggest any changes
    to the text of the amendments themselves.

    3
    In addition to PC
    1, the Board also received suggestions for
    revisions from staff of the Joint Committee on Administrative
    Rules
    (JCAR).
    In response to the JCAR suggestions, the Board
    added a reference to the authority note for Part 240 to reference
    Section 13B—20 of the Vehicle Emissions Inspection Law of 1995
    (625 ILCS 5/13B—20
    and added Board Notes to Sections 240.172 and
    240.173,
    indicating the federal regulatory sources for these
    provisions:
    40 CFR 51.357(b) (3) (i) and
    (b) (3) (ii), respectively.
    Regulatory Backciround
    Section 182(b) and
    (c)
    of the Clean Air Act
    (CAA), as
    amended in 1990, requires the use of “inspection and maintenance”
    programs in areas not meeting the national ambient air quality
    standards (NAAQS)
    for ozone and/or carbon monoxide.
    The
    CAA
    specifies the use of “basic” I/N programs in “moderate”
    nonattainment areas and “marginal” nonattainment areas with
    existing I/M programs.
    It requires the use of “enhanced” I/H
    programs in “serious”,
    “severe”, and “extreme” ozone
    nonattaimuent areas with urbanized populations of 200,000 or
    more.
    In Illinois, the Chicago and Metro-East St. Louis
    (Metro-
    East)
    areas are classified as “severe” and “moderate”
    nonattainiuent for ozone, respectively, and as such are subject to
    the I/H requirement.
    The General Assembly enacted VEIL.
    That statute provides
    authority for the Agency to implement an enhanced I/N program and
    meet the United States Environmental Protection Agency’s
    (U.S.
    EPA’s) requirements for such a program.
    VEIL mandates enhanced
    I/N testing for the Metro-East area and certain portions of the
    Chicago nonattainment area.
    Section l3B-20 of VEIL,
    mandates adoption of enhanced I/M
    rules by the identical—in—substance rulemaking procedure.
    The
    Agency has proposed codified U.S. EPA emissions standards
    concerning evaporative system pressure and purge testing for the
    enhanced I/M program in this docket by identical-in-substance
    procedures under Section 28.4 of the Act.
    Pursuant to the
    provisions of that Section, the Board was required to adopt
    regulations that are identical in substance to federal
    regulations that the state must adopt to comply with the 1990
    CAA
    amendments.
    However, major portions of the federal enhanced I/N scheme
    are not codified in federal regulations, but exist only as
    federal guidance.
    Section 7.2 of the Act, which defines
    “identical—in—substance” rulemaking and establishes conditions
    for its use, allows the Board only to adopt federal rules using
    this mechanism.
    The Agency accordingly chose to use the next—fastest
    procedural mechanism, the Section 28.5 “fast—track” rulemaking

    4
    (P.A.
    87—1213, effective September 26, 1992; 415 ILCS 5/28.5),
    for those segments of the enhanced I/N rules that were based on
    federal guidelines, as that rulemaking also implements the CAA.
    The Board designated that companion docket as R94-19, with a
    nearly identical caption.
    The Agency’s proposals represented the procedural means by
    which the Agency sought to achieve the mobile source emissions
    standards necessary for the implementation of the enhanced I/M
    program.
    The standards proposed in R94—19 incorporate federal
    guidance.
    The Agency proposed codified U.S. EPA emissions
    standards concerning evaporative system pressure and purge
    testing for the enhanced I/N program in this docket by identical-
    in—substance procedures under Section 28.4 of the Act.
    In
    companion docket R94—19, the Agency proposed emissions standards
    based on U.S. EPA guidance.
    The Board adopts the Agency-proposed amendments relating to
    standards for fuel evaporative emissions control system testing
    without substantive revision.
    The only revisions were the above—
    mentioned addition of a citation to VEIL in the authority note
    for Part 240 and the addition of a Board note to each of Sections
    240.172 and 240.173,
    citing the federal sources of these
    provisions.
    ORDER
    The Board directs the Clerk to cause the filing of the
    following proposal for publication in the Illinois Register:
    TITLE 35:
    ENVIRONMENTAL PROTECTION
    SUBTITLE B:
    AIR POLLUTION
    CHAPTER
    I:
    POLLUTION CONTROL BOARD
    SUBCHAPTER
    k:
    EMISSION
    STANDARDS
    AND
    LIMITATIONS
    FOR MOBILE
    SOURCES
    PART
    240
    MOBILE SOURCES
    SUBPART A:
    DEFINITIONS AND GENERAL PROVISIONS
    Section
    240.101
    Preamble
    240.102
    Definitions
    240.103
    Prohibitions
    240.104
    Inspection
    240.105
    Penalties
    240.106
    Determination of Violation
    240.107
    Incorporations by Reference
    SUBPART B:
    EMISSIONS

    5
    Section
    240.121
    Smoke Emissions
    240.122
    Diesel Engine Emissions Standards for Locomotives
    240.123
    Liquid Petroleum Gas Fuel Systems
    240.124
    Vehicle Exhaust Emission Standards
    240.125
    Compliance Determination
    SUBPART
    C:
    HEAVY-DUTY
    DIESEL
    SMOKE
    OPACITY
    STANDARDS AND
    TEST
    PROCEDURES
    Section
    240.140
    Applicability
    240.141
    Heavy—Duty Diesel Vehicle Smoke Opacity Standards and
    Test Procedures
    SUBPART
    F:
    EVAPORATIVE
    TEST
    STANDARDS
    Section
    240.172
    Evaporative
    System Pressure Test Standards
    240.173
    Evaporative
    System
    Purge
    Test
    Standards
    240.Appendix A Rule into Section Table
    240.Appendix B Section into Rule Table
    AUTHORITY:
    Implementing Sections
    9,
    10 and 13 and authorized by
    Sections
    27
    and
    28.4
    of
    the
    Environmental
    Protection
    Act
    (Ill.
    Roy.
    Ctat.
    1989,
    oh.
    111
    1/2,
    paro.
    1009,
    1010,
    1013
    and
    1027)
    ~415
    ILCS
    5/9.
    10.
    13.
    27.
    and
    28.41
    and
    Section
    13B—20
    of
    the Vehicle Emissions Inspection Law of 1995
    625
    ILCS 5/13B—20
    (P.A. 88—533. effective January 18,
    1994).
    SOURCE:
    Adopted as Chapter
    2:
    Air Pollution, Part VII:
    Mobile
    Sources, filed and effective April 14,
    1972; codified at
    7 Ill.
    Reg. 13628; amended in R85—25, at
    10 Ill. Reg.
    11277, effective
    June 16,
    1986; amended in R90-20 at 16 Iii. Reg.
    6184, effective
    April
    7,
    1992; amended in R94-20 at
    Ill. Reg.
    effective
    NOTE:
    Capitalization denotes statutory language.
    SUBPART
    F:
    EVAPORATIVE
    TEST
    STANDARDS
    Section 240.172
    Evaporative System Pressure Test Standards
    flj..
    The vehicles shall be inspected utilizing an
    evaporative system pressure test adopted by the Agency.
    ~
    The vehicle shall fail the evaporative system pressure
    test if one of the following occurs:

    6
    fl
    The system cannot maintain a system pressure above
    eight inches of water for up to two minutes after
    being pressurized to 14 plus or minus 0.5 inches
    of water
    .aL
    No pressure drop is detected when the gas cap is
    loosened:
    ~J
    The fuel vapor storage canister is missing or
    obviously damaged
    j)
    System vapor lines or hoses are missing or
    obviously disconnected; or
    ~
    The gas cap is missing.
    BOARD NOTE:
    Derived from 40 CFR 51.357(b) (3) (ii
    (1993).
    (Source: Added at
    _____
    Ill. Reg.
    ________
    ,
    effective
    ______________________________________________________________
    )
    Section 240.173
    Evaporative System Purae Test Standards
    ~J
    The vehicle shall be inspected utilizing the
    evaporative system purge test adopted by the Agency.
    ~
    The vehicle shall fail the evaporative system purge
    test if the canister Purge system flow as measured
    during the course of the transient exhaust emission
    test is less than one liter.
    BOARD NOTE:
    Derived from 40 CFR 51.357(b) (3) (ii)
    (1993).
    (Source: Added at
    _____
    Ill. Reg.
    ,
    effective
    ________________________________________________________
    )
    IT IS SO ORDERED
    Board Member J. Yi abstained.
    I, Dorothy N.
    Gunn, Clerk of the Illinois Pollution Control
    Board,
    hereby
    certify
    that
    the above opinion and order was
    adopted
    on
    the
    /
    4—~
    day
    of
    _____________________
    1994,
    by
    a
    vote
    of
    ‘~
    -0
    .
    ~
    2i~
    ~
    Dorothy
    N.
    9~n,
    Cletk
    Illinois Pq~,IutionControl Board

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