Sierra Club v. Larson ( 1993 )


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    UNITED STATES COURT OF APPEALS
    UNITED STATES COURT OF APPEALS
    FOR THE FIRST CIRCUIT
    FOR THE FIRST CIRCUIT
    ____________________

    No. 92-2227

    SIERRA CLUB, ET AL.,

    Plaintiffs, Appellants,

    v.

    THOMAS D. LARSON, ET AL.,

    Defendants, Appellees.

    ___________________


    No. 92-2323

    SIERRA CLUB, ET AL.,

    Plaintiffs, Appellants,

    v.

    THOMAS D. LARSON, ET AL.,

    Defendants, Appellees.

    ______________________

    APPEALS FROM THE UNITED STATES DISTRICT COURT

    FOR THE DISTRICT OF MASSACHUSETTS

    [Hon. Edward F. Harrington, U.S. District Judge]
    ___________________

    ____________________






























    No. 92-2282

    SIERRA CLUB, ET AL.,

    Petitioners,

    v.

    JULIE BELAGA, ETC.,

    Respondent.

    ____________________


    PETITION FOR REVIEW OF AN ORDER

    OF THE ENVIRONMENTAL PROTECTION AGENCY

    _____________________

    Before

    Boudin, Circuit Judge,
    _____________
    Campbell, Senior Circuit Judge,
    ____________________
    and Stahl, Circuit Judge.
    _____________

    ____________________

    Thomas B. Bracken with whom Bracken & Baram was on brief for
    __________________ ________________
    appellants.
    George B. Henderson, II, Assistant United States Attorney, with
    ________________________
    whom Myles E. Flint, Acting Assistant Attorney General, A. John
    ________________ _______
    Pappalardo, United States Attorney, Robert L. Klarquist, Attorney,
    __________ ____________________
    Department of Justice, Michael Kenyon, Attorney, United States
    ________________
    Environmental Protection Agency, Judith Tracy, Attorney, United States
    ____________
    Environmental Protection Agency and Irwin Schroeder, Attorney, Federal
    _______________
    Highway Administration, were on joint brief of appellees and
    respondent, for federal appellees.
    William L. Pardee, Assistant Attorney General, Commonwealth of
    __________________
    Massachusetts, with whom Scott Harshbarger, Attorney General,
    __________________
    Commonwealth of Massachusetts, was on joint brief of appellees and
    respondent, for state appellees.

    ____________________

    August 6, 1993
    ____________________


















    BOUDIN, Circuit Judge. In this case, the Sierra Club
    _____________

    appeals from the judgment of the district court declining to

    enjoin construction of the central artery/third harbor tunnel

    project in Boston. It also petitions to review the action of

    the Environmental Protection Agency in approving an amendment

    to Massachusetts state regulations that bears upon the

    project. We affirm the district court and deny the petition

    for review.

    I. THE FACTS AND PRIOR PROCEEDINGS

    Massachusetts, through its Department of Public Works,

    has begun construction of a mammoth project that includes

    rebuilding a major segment of Interstate Route 93 that now

    runs on a viaduct through downtown Boston and is known as

    "the central artery." When the central artery/tunnel project

    is completed some years from now, the highway segment in

    question will be widened, sunk below ground level, and mostly

    covered. It will connect at the north with a new bridge

    across the Charles River and at the south with a newly built

    third harbor tunnel running from South Boston to Logan

    Airport in East Boston.

    The depressed and covered portion of the new highway and

    the tunnel will be ventilated by ducts and fans in six

    buildings located on the highway route and near the tunnel

    portals. Vast amounts of air will be drawn into the covered

    highway and tunnel, and the mixture of air and motor vehicle



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    emissions will be pumped up through the six buildings and

    exhausted through stacks ranging from 90 to 225 feet high.

    Studies indicate that the project will reduce traffic

    congestion, increase average speeds, and reduce area-wide

    carbon monoxide and hydrocarbon emissions.

    The Sierra Club, a non-profit environmental group,

    believes that whatever the area-wide effects of the project,

    it will create new "hot spots" of pollution in certain of the

    neighborhoods near to the six ventilation buildings. In its

    view, pollution control equipment, in the nature of after-

    burners, should be installed in the ventilation buildings.

    The federal and state governments, which have filed a joint

    brief in this case, deny that any dangerous hot spots will be

    created, pointing to studies conducted as part of the

    project's environmental review. They also assert that after-

    burner technology is not feasible because of the low

    concentration of pollutants in the vented air.

    In March 1991, the Sierra Club and certain of its

    members who live in the vicinity of the central artery

    brought suit in district court against a collection of state

    and federal officials associated with the project. The

    gravamen of the suit was the Sierra Club's claim that the

    ventilation buildings planned for the project comprised a

    "major stationary source" of air pollution as that term is

    used in the Clean Air Act, 42 U.S.C. 7401, et seq., and
    _______



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    counterpart Massachusetts regulations, 310 C.M.R. 7.00 et
    __

    seq. It is common ground that, if the ventilation buildings
    ___

    were so classified, then the project would require a permit

    or permits from Massachusetts that have not been secured. To

    frame this issue entails a brief description of the statute.

    The Clean Air Act enacted a complex statutory regime,

    several times amended, to control and mitigate air pollution

    in the United States. Broadly speaking, Title I of the

    statute regulates stationary sources of pollution and Title

    II regulates mobile sources, most importantly motor vehicles.

    For specified pollutants, national air quality standards are

    promulgated by EPA. 42 U.S.C. 7409. Whether new

    construction of polluting facilities is permitted in an area,

    and what kind of controls are required, depends on whether

    the area is below or above the standard for each pollutant.

    Part C, 42 U.S.C. 7470-7492, governs permits where the

    standard has been attained; Part D applies to so-called

    nonattainment areas. Id. 7501-7515.
    __

    In either event, the construction of a "major" new

    stationary source--normally, one emitting 100 or more tons of

    pollutant each year, see 42 U.S.C. 7602(j)--generally
    ___

    requires a permit. 42 U.S.C. 7475(a), 7502(c)(5).1 In


    ____________________

    1The definition of "major stationary source" in section
    7602(j) directly governs permits under part D where the same
    phrase is used in section 7502(c)(5)'s permit requirement.
    Part C requires permits for specified "major emitting
    facilities," in areas already in compliance with pollution

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    the case of Boston, some of the pollutants that will flow

    through the proposed ventilation buildings currently exceed

    national standards so that new major sources are subject to

    the more stringent class of limitations; other pollutants are

    below the standards and less stringent limitations apply. By

    way of example, the Boston area exceeds the national standard

    for carbon monoxide, and to secure a permit the highway

    proponents would have to show that a major stationary source

    can achieve the "lowest achievable emission rate" for that

    pollutant. 42 U.S.C. 7503(a)(2).

    The Clean Air Act allocates different responsibilities

    to the EPA on the one hand and to the states on the other.

    Each state is directed to adopt and submit to EPA for

    approval a state implementation plan to achieve and maintain

    the national standards established by EPA. 42 U.S.C.

    7410(a). See also id. 7471, 7502. If the state fails to
    ________ __

    adopt an approvable plan, the EPA must adopt federal

    regulations for the area. 42 U.S.C. 7410(c).

    Massachusetts has an approved state implementation plan.

    Under the Clean Air Act, "citizen" suits may be brought to

    enjoin a project that requires a permit under Parts C or D

    but has not obtained one. 42 U.S.C. 7604(a)(3).



    ____________________

    standards, 42 U.S.C. 7475, 7479, but--with qualifications
    not here relevant--the statute instructs that the terms
    "major stationary source" and "major emitting facility" be
    used interchangeably. 42 U.S.C. 7602(j).

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    In this case, in April 1991 the Sierra Club and certain

    of its members sought a preliminary injunction against

    construction of the central artery and tunnel project. The

    request was denied on July 30, 1991. After transfer of the

    case to another judge, the district court received further

    briefing and argument. On September 16, 1992, the court

    granted summary judgment in favor of the government

    defendants, state and federal, holding that the ventilation

    buildings did not comprise stationary sources subject to pre-

    construction permit requirements. The Sierra Club and its

    named members appealed.

    Shortly before the lawsuit, the Massachusetts Department

    of Environmental Protection submitted to the EPA on

    January 30, 1991, a new regulation--regulation 7.38, codified

    as 310 C.M.R. 7.38--as a proposed amendment to the

    Massachusetts state implementation plan. This regulation

    seeks to classify tunnel ventilation systems as "indirect

    sources" under the Clean Air Act. In the early 1970s, the

    EPA had begun to require that state implementation plans

    regulate such facilities as parking lots, highways and

    garages that do not emit pollutants themselves but attract

    numbers of polluting vehicles. Congress responded in 1977 by

    barring the EPA from regulation of what were called "indirect







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    sources." 42 U.S.C. 7410(a)(5)(B).2 However, Congress at

    the same time gave the states permission, if they so chose,

    to regulate such indirect sources themselves as part of their

    state implementation plans. Id. 7410(a)(5)(A), (C).
    __

    Massachusetts, exercising this option through regulation

    7.38, proposed to regulate roadway/tunnel ventilation

    systems as indirect sources. The regime involves

    certification by the builder that specified pollution

    standards will be met, and the Department of Environmental

    Protection may accept, conditionally approve, or reject the

    certification after notice and hearing. Monitoring after

    construction and periodical renewal of the certificate are

    required. The new regulation also states that the systems

    are not subject to the pre-construction permitting required

    for various stationary sources under regulation 7.02, 310

    C.M.R. 7.02.

    The Sierra Club opposed the approval of regulation 7.38

    when Massachusetts submitted it to the EPA as an amendment to

    the state implementation plan. The Sierra Club argued that

    the effect would be indirectly to relieve the project at

    issue in this case of the more stringent pre-construction



    ____________________

    2To the extent that a highway or other major indirect
    source is federally assisted, the EPA retains some direct
    regulatory authority, see 42 U.S.C. 7410(a)(5)(B); but no
    ___
    claim has been made that the project in this case is in
    violation of any requirements laid down by the EPA under this
    reservation.

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    approval required of major stationary sources under the Clean

    Air Act and the Massachusetts regulations that apply to

    stationary sources. After notice and receipt of public

    comments, the EPA on October 8, 1992, published notice of its

    approval, 57 Fed. Reg. 46310 (1992). The Sierra Club then

    petitioned for review of the EPA's action in this court

    pursuant to 42 U.S.C. 7607(b)(1).

    Because of the overlapping issues and common subject,

    this court consolidated the two appeals taken from the

    district court judgment with the proceeding for direct review

    of the EPA action. In this opinion, we address first a

    jurisdictional objection raised by the federal defendants,

    then statutory issues posed by the appeals from the district

    court, and finally the additional issues posed by the

    Massachusetts regulations and by the petition to review the

    EPA's action approving regulation 7.38.

    II. JURISDICTION

    The federal defendants renew in this court their

    argument, not passed upon below, that the district court

    "lacked jurisdiction" over the complaint against the federal

    defendants. The "citizen suits" provision of the Clean Air

    Act permits private suits in three defined classes of cases.

    As already noted, it explicitly permits a private suit

    against anyone who "proposes to construct" any major

    stationary source without a permit required by parts C or D.



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    42 U.S.C. 7604(a)(3). The federal defendants deny that

    they are proposing to construct the project or any part of

    it; in other words, they argue that if anyone is subject to

    suitunder subsection(a)(3), itis onlyMassachusetts officials.

    The statute also permits such citizen suits where

    emission standards or limitations are exceeded, or where the

    EPA Administrator has failed to perform an act or duty under

    the Clean Air Act "which is not discretionary . . ." 42

    U.S.C. 7604(a)(1), (2). As to these categories, the

    federal defendants argue that any violations of emission

    standards or limitations would be those of the state, and

    that the EPA Administrator cannot be sued for violating a

    non-discretionary duty since enforcement by the Administrator

    is inherently a discretionary matter.

    The Sierra Club, responds, unpersuasively, that any

    jurisdictional objection has been waived by the failure of

    the federal defendants to cross appeal.3 More usefully, the

    Sierra Club urges that the Administrator did violate a non-

    discretionary duty by failing to take action to enjoin the

    project, and that in any event the Federal Highway

    Administration is so closely involved in the funding and

    planning of this project as to be effectively a party to its


    ____________________

    3The jurisdictional objection could be viewed as an
    alternative ground for sustaining the denial of an
    injunction, dispensing with any need for a cross appeal. In
    any event, courts are expected to "notice" jurisdictional
    objections even if no one has raised them.

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    construction. However, like the government brief, the Sierra

    Club's brief is silent as to what practical implications

    these questions have in this case where no one has disputed

    that Massachusetts defendants can be enjoined from

    construction if a permit is required.

    Absent some showing that the jurisdictional issue has

    practical importance in this case, we decline to address it.

    Since the Massachusetts officials are subject to suit for

    constructing the project without a permit, the merits must be

    reached in any event. And since we resolve the merits in

    their favor, the jurisdictional issue as to the federal

    defendants is pretty close to moot, affecting only the form

    of the dismissal as to them. There is ample precedent for

    by-passing jurisdictional objections when the court can more

    easily dismiss on the merits. E.g., Norton v. Mathews, 427
    ____ ______ _______

    U.S. 524, 532 (1976).

    III. THE STATUTORY ISSUES

    The merits of the appeals from the district court

    judgment turn principally on a narrow point of statutory

    construction, namely, whether the ventilation buildings that

    will vent the underground highway and harbor tunnel comprise

    a "stationary source or sources" within the meaning the Clean

    Air Act. If so labeled, a permit is required; apparently the

    amount of pollutant needed to qualify as a "major" source is

    not at issue. Easily stated, the issue is less easily



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    resolved: there is little by way of statutory definition, no

    useful judicial precedent or legislative history offered to

    us, and a reasonable possibility that Congress never gave any

    thought to the idiosyncracy posed by these ventilation

    buildings.

    Starting as one normally does with language, parts C and

    D, which contain the pre-construction permit requirements for

    major stationary sources, originally contained no definition

    of stationary source. Instead part D defines a "major

    stationary source" as "any stationary facility or source"

    emitting the specified quantity of pollutant. Part C, by

    cross-reference (see note 1, above), adopts the same

    language. Part A, concerned with so-called performance

    standards, other than air quality standards, did use the term

    "stationary source" in 42 U.S.C. 7411, defining it as "any

    building, structure, facility, or installation which emits or

    may emit any air pollutant." 42 U.S.C. 7411(a)(3). That

    definition, however, was adopted "for purposes of this

    section," i.e., section 7411.4
    ____





    ____________________

    4The obscurity of the relationship between the part A
    definition just quoted and the "major stationary source" in
    parts C and D was the subject of comment by the Supreme Court
    in Chevron U.S.A., Inc. v. Natural Resources Defense Council,
    ____________________ __________________________________
    Inc., 467 U.S. 837, 859-860 (1984). Yet another definition
    ____
    of stationary source appears in, and is apparently limited
    to, a provision of part A concerned with accidental release
    of hazardous substances. See 42 U.S.C. 7412(r)(2)(C).
    ___

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    Thus far the breadth of the language appears helpful to

    the Sierra Club position, since linguistically a ventilation

    system with a stack could be called a "facility," a "source"

    or even a "building." The table tilted back the other way in

    1977 when Congress amended the Clean Air Act to exclude

    "indirect sources" from mandatory coverage in state

    implementation plans. 42 U.S.C. 7410(a)(5)(A). An

    indirect source is defined in the statute as

    a facility, building, structure, installation, real
    property, road, or highway which attracts, or may
    attract, mobile sources of pollution. Such term
    includes parking lots, parking garages, and other
    facilities subject to any measure for management of
    parking supply . . . .

    42 U.S.C. 7410(a)(5)(C). Asserting that auto makers should

    bear the brunt of reducing tailpipe emissions, Congress

    imposed the limitations already described on the EPA efforts

    to regulate the magnets for vehicles rather than the vehicles

    themselves. See H.R. Rep. No. 294, 95th Cong., 1st Sess.
    ___

    219-227 (1977).

    Although indirect sources are not in terms excluded from

    the definition of stationary sources--the former provision is

    cast instead as a limitation on EPA authority--the effect of

    the amendment is to treat indirect sources as a separate

    category of sources subject to a different legal regime. The

    states may still "choose[]" to regulate them in state

    implementation plans, 42 U.S.C. 7410(a)(5)(i), but the

    decision whether and how to regulate is left largely to the


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    states. Our best reading of the statute is that, at least

    after 1977, an indirect source is not to be treated as a

    stationary source under Parts C and D. Cf. South Terminal
    __ ______________

    Corp. v. EPA, 504 F.2d 646, 669 (1st Cir. 1974) ("parking
    _____ ___

    structures, which themselves emit no pollutants but instead

    only attract vehicles which emit pollution, are not

    stationary sources").

    Assuming that a stationary source and an indirect source

    are exclusive categories, the difficult question remains

    whether ventilation buildings should be assimilated to the

    former or to the latter. It is a question that dictionaries

    cannot answer. The terms are technical rather than common

    ones, and they were developed against the background of a

    complex statute with interlocking provisions and specific

    goals. Nor does legislative history furnish any clue as to

    Congress' intent for ventilation buildings. Perhaps this

    small corner among possible applications of the statute was

    simply overlooked.

    Similarly, it is difficult to derive any clear cut

    answer from analogy or policy.5 A covered highway or tunnel


    ____________________

    5The Sierra Club urges that the definition of stationary
    source is analogous to the definition of "point source", 33
    U.S.C. 1362(14), in the Clean Water Act and that we should
    regard the related caselaw as precedent. See National
    ___ ________
    Wildlife v. Gorsuch, 693 F.2d 156, 173-174 (D.C. Cir. 1982).
    ________ _______
    We find little help from a different term used in a different
    statutory scheme. Nor do we think that it matters whether,
    as the Sierra Club asserts, pollution tests or projections
    done by engineers for the ventilation systems are akin to

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    with a ventilation system is akin to an uncovered highway or

    open sided garage--clearly, indirect sources--in multiple

    senses: in each instance the facility or space attracts more

    cars, pollution in the vicinity may be greatly increased, and

    the initial source of the pollution is the cars themselves.

    On the other hand, the possibility exists (no information has

    been provided to us on the point) that the large scale

    ventilation systems may be more potent than a highway or

    garage in concentrating and expelling pollutants in a

    specific area; and on this ground, if no other, one might

    distinguish between them and a facility that is ordinarily

    ventilated without mechanical aid. Thus the analogy hardly

    dispels all doubt.

    Two other arguments pressed by the parties seem to us

    inconclusive. The Sierra Club points us to a new provision,

    added to Title I in 1990 without limitation as to its

    application, which for the first time defines stationary

    source as meaning "generally any source of an air pollutant

    except those emissions resulting directly from an internal

    combustion engine for transportation purposes or from a

    nonroad engine or nonroad vehicle as defined in section 7550

    . . . ." 42 U.S.C. 7602(z). The Sierra Club stresses the

    word "directly," arguing that the emissions from the


    ____________________

    those done for stationary sources; presumably, they would
    also be similar if the system vented a large garage, which is
    unquestionably an indirect source.

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    ventilation shaft do not fit the "except" clause because the

    auto emissions are emitted first ("directly," in the Sierra

    Club's view) into the air of the covered highway or tunnel

    andonly thengatheredbyfansand spewedoutthroughtheventilators.

    The government brief offers its own parsing of this new

    language, but both sides' arguments about what is "direct"

    and what is an "indirect" emission have the flavor of a

    Medieval dispute in theology. The reality is that Congress

    framed this new subsection (z) to deal with an entirely

    different problem, namely, to include within the stationary

    source definition mobile sources of pollution, like ships in

    port and portable asphalt concrete plants, so far as they

    emit pollutants as part of their stationary activities, e.g.,
    _____

    by leaking fuel at dockside (in contrast to engine emissions

    that occur when the ship or plant travels to a new

    destination). S. Rep. No. 228, 101st Cong., 1st Sess. 376

    (1990). In other words, Congress was not addressing tunnel

    ventilation when it drew up this new provision.

    Conversely, we are doubtful about the government's

    argument based upon the structure of the statute.

    Admittedly, Congress did establish two different regimes:

    that in Title I, with which we are concerned, governed

    stationary sources; that in Title II created a quite

    different regime, part of which is familiar to anyone who has

    a car inspected, to regulate vehicle emissions directly.



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    This symmetry could suggest that tailpipe pollution--the

    source of the pollutants at issue here--was not meant to fall

    within Title I at all. The difficulty is that Congress might

    not have minded two layers of control, and contrivances like

    the "indirect source" provision in Title I blur the notion

    that auto pollution is exclusively a Title II problem.

    In the end, we think the balance is tipped here by the

    explicit administrative interpretation of the Clean Air Act

    adopted by the EPA. In approving the addition of regulation

    7.38 to Massachusetts' state implementation plan, the EPA

    stated:

    Tunnel ventilation systems, which do not generate
    their own emissions but rather simply funnel
    emissions from mobile sources, are not stationary
    sources within the meaning of the Clean Air Act.


    57 Fed. Reg. 46310, 46311 (1992). The Supreme Court has told

    us that in construing a statute the courts should ordinarily

    show a measure of deference to the agency charged with

    administering the statute.6 The case most often cited for

    that precept is Chevron, which involved a different
    _______

    application of the very same "stationary source" provision

    that is now before us.



    ____________________

    6See Environmental Protection Agency v. National Crushed
    ___ _______________________________ ________________
    Stone Ass'n, 449 U.S. 64, 83 (1980); Chevron, U.S.A., Inc. v.
    ___________ _____________________
    Natural Resources Defense Council, Inc., 467 U.S. 837 (1984);
    _______________________________________
    United States v. City of Fulton, 475 U.S. 657, 666 (1986);
    ______________ _______________
    National Labor Relations Board v. Food and Commercial Workers
    ______________________________ ___________________________
    Union, 484 U.S. 112, 123 (1987).
    _____

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    The Chevron doctrine has been the subject of much debate
    _______

    and, in subsequent decisions, the Supreme Court may have

    softened its impact somewhat and in some situations. See,
    ____

    e.g., INS v. Cardoza-Fonseca, 480 U.S. 421, 448 (1987). To
    ____ ___ _______________

    be sure, the courts have the last word on statutory

    interpretation--the question is one of the weight to be
    ______

    accorded to agency views--and often the statute's language or

    history leaves no latitude for the agency. In other cases

    the issue of interpretation may be so central to the

    operation of the statute that, whether or not Congress'

    meaning is clear, it is improbable that Congress meant for

    the courts to defer to the agency. We do not think these or

    other qualifications on Chevron deflect its impact here.
    _______

    On the contrary, this statute is ambiguous on the issue
    __

    before us, at least when the words "stationary source" are

    read together with the "indirect source" proviso and the

    structural juxtaposition of Titles I and II. The

    application of the stationary and indirect source language to

    tunnel ventilation is not the heart of the statute but a

    fringe issue on which Congress did not clearly express its

    intent. The Clean Air Act is an immensely complex and

    technical statute more familiar to EPA than to anyone else,

    and the task of making its parts function together

    harmoniously is entrusted to many actors but above all to the

    EPA.



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    In sum this is a case in which Chevron and deference to
    _______

    the agency are not make-weights or subsidiary arguments.

    Rather, in this fairly debatable case, where statutory

    language is ambiguous, legislative history is silent and

    policies and analogies can be and have been mustered on both

    sides, we think that the EPA's unqualified and precise

    reading is decisive. It is unnecessary to calibrate

    perfectly the weight to be accorded to the agency view in a

    case of this species: once "considerable" weight is accorded

    to EPA's reading of the statute, see Chevron, 467 U.S. at
    ___ _______

    844, it is enough to tip a set of scales otherwise so closely

    balanced.

    IV. THE MASSACHUSETTS REGULATIONS AND EPA APPROVAL

    Our concern with the district court case is not quite

    over. Even if Congress did not designate the ventilation

    facilities in this case as stationary sources, the

    possibility remains that Massachusetts has adopted in its

    state implementation plan--and then sought to ignore for its

    own construction project--pertinent legal restrictions that

    can be implemented through a suit under the Clean Air Act.

    Of course, not every state-law restriction on a project is a

    matter of federal concern, but a state restriction that is

    part of a federally approved state implementation plan under

    the Clean Air Act may at least in some circumstances be





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    within the purview of a citizens suit under 42 U.S.C. 7604.



    At one point in its brief, the Sierra Club seems to

    argue that whatever Congress may have meant by stationary

    source, Massachusetts in its general permit requirement

    regulation 7.02, 310 C.M.R. 7.02, has required pre-

    construction approval of a class of facilities that includes

    the ventilation buildings in this case. One version of

    regulation 7.02 has been approved by EPA as part of

    Massachusetts' state implementation plan. Although

    Massachusetts has adopted a later version not yet approved,
    ___

    we will assume arguendo that the original, approved version
    ________

    of the regulation still exists as a matter of federal law and

    that a violation of this version might well be remedied by a

    citizen suit under the federal statute.7

    The difficulty with the Sierra Club's argument, as the

    government brief points out, is that this regulation on its

    face applies to a short list of specific facilities (e.g.,
    ____

    chemical products manufacturing plants) that do not include

    highways, tunnels or associated ventilation systems. The



    ____________________

    7The Sierra Club also argues that the more recent
    version of regulation 7.02 applies to the project (or would,
    if not invalidly qualified by regulation 7.38); but we need
    not decide whether the more general language of the new
    version could embrace highway and tunnel ventilation systems.
    The new version does not reflect a federally approved
    requirement, nor do we think that it casts any light upon, or
    represents an exercise of authority under, the older version.

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    regulation also applies to "such other facilities as the

    [state] Department [of Environmental Protection] may

    require," but that state agency has not required pre-

    construction review of the ventilation buildings under this

    version of the regulation. The most that the Sierra Club can

    extract from the affidavit submitted by the head of the

    agency is that his agency wobbled over the issue of how to

    regulate the ventilators at issue in this case, and finally

    decided to propose the "indirect source" regime now embodied

    in regulation 7.38.

    Regulation 7.38 which now governs tunnel ventilation

    systems says that they are not subject to regulation 7.02.

    We think that this exclusion seeks to remove ambiguity and is

    very weak evidence that the new version of regulation 7.02

    would otherwise cover such systems, and no evidence at all of

    the meaning of the old version. Nor do we agree with the

    Sierra Club that its reading of old regulation 7.02 is borne

    out by Town of Brookline v. Commissioner of the Department of
    _________________ _________________________________

    Environmental Quality Engineering, 387 Mass. 372, 439 N.E.2d
    __________________________________

    372 (1982). That case involved the application of regulation

    7.02 to a diesel fuel-powered facility (in fact, an

    electrical generating station), which is listed as a facility

    automatically covered by old regulation 7.02.

    To construe the old version of regulation 7.02

    definitively is a daunting task, for it was complex, ill-



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    structured, and apparently confusing even to the state agency

    that administered it. But the Sierra Club's argument depends

    upon a showing by it that the old regulation 7.02 did govern

    highway and tunnel ventilation systems. Such systems do not

    fall within the list of specifically named facilities in the

    regulation. Similarly, the Sierra Club has not shown that

    the state agency ever extended that version of the regulation

    to such systems under the "may require" clause.

    This brings us to the attack on regulation 7.38 that is

    the subject of Sierra Club's direct review petition. One

    might at first wonder why the Sierra Club is interested in

    overthrowing a regulation which, if less stringent than the

    pre-construction permit requirement for major stationary

    sources, is at least a sizable step in the direction of

    regulating ventilation systems, a step that the state need

    not take at all if--as the EPA has ruled--such systems are

    not stationary sources but merely adjuncts to indirect

    sources. Indeed, the EPA's notice approving the new

    regulation notes that the Conservation Law Foundation

    endorsed it. 57 Fed. Reg. 46310, 46311 (1992).

    The answer is that the Sierra Club, with considerable

    imagination, has constructed the following argument: the 1990

    amendments to the Clean Air Act contained a savings clause

    that sought to forbid states from softening pre-amendment

    "control requirement[s]" in areas that had not attained the



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    national air quality standard for a pollutant, 42 U.S.C.

    7515; the Boston area has admittedly not met these standards

    for certain pollutants; and therefore (says the Sierra Club)

    regulation 7.38 is in violation of the savings clause because

    it substitutes as to tunnel ventilation systems the softer

    regime of the new regulation 7.38 for the more stringent,

    previously applicable regime of regulation 7.02.

    We will assume without deciding that the savings clause

    would prevent the weakening of a state implementation plan.

    But even so we do not read the savings clause to refer to

    anything other than an effective, federally approved state

    implementation plan.8 It is the older version of regulation

    7.02 which alone was federally approved at the time of the

    1990 Clean Air Act Amendments. And, as already explained,

    the Sierra Club has failed to establish that the pertinent

    older version of regulation 7.02 did apply to covered highway

    or tunnel ventilation systems. Accordingly, regulation 7.38



    ____________________

    8As Senator Chafee explained in the floor debate on this
    provision:

    "The savings provision was intended to
    ensure that there is no backsliding on
    the implementation of adopted and
    currently feasible measures that EPA has
    approved as part of a State
    implementation plan in the past, or that
    EPA has added to State plans on its own
    initiative or pursuant to a court order
    or settlement."

    136 Cong. Rec. S17,237 (daily ed., October 26, 1990).

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    does not weaken a federally approved state implementation

    plan but rather strengthens it by extending a new regime to

    such ventilation systems where previously no federally

    approved regime applied at all.

    We are left with two further arguments in relation to

    regulation 7.38. First, it is claimed that regulation 7.38

    is invalid because, according to the Sierra Club, the state

    was required by M.G.L. ch. 111, 142A, to obtain the

    approval of the Governor of Massachusetts and the Executive

    Council but did not do so. This argument was made, it

    appears, on the premise that regulation 7.38 was needed by

    the government defendants in order to remove a bar otherwise

    presented by regulation 7.02. As we have seen, the premise

    is mistaken, and invalidating regulation 7.38 would probably

    free the ventilation systems from any federally enforceable

    regulation.

    Nevertheless, the issue of governor-and-council

    approval, although irrelevant to the injunction action, is

    raised by the Sierra Club's petition to review EPA's approval

    of the new regulation. Since the direct review statute has a

    time limit on petitions, 42 U.S.C. 7607(b)(1), we cannot

    properly defer decision on the validity of regulation 7.38 to

    some future point. Indeed, EPA in approving the regulation,

    noted that Massachusetts' Secretary of State had attested

    that the regulation was properly adopted, and EPA itself



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    ruled that the Massachusetts Department of Environmental

    Protection had authority "to adopt such regulations without

    approval by the Governor and Council." 57 Fed. Reg. at

    46312.

    It is difficult for anyone but a Massachusetts court to

    pronounce with certainty on this issue. But when the

    regulation is attested by the state secretary as validly

    adopted and its procedural validity is supported in a brief

    signed by the state's attorney general, it would take a

    rather strong showing to persuade us to hold that the

    regulation is invalid on procedural grounds. Assuming (as

    seems likely) that its procedural validity is open to review

    in this court and that the state secretary's attestation is

    necessary but not conclusive,9 we think that EPA correctly

    concluded that the regulation was properly adopted without

    the approval of governor and council.

    The state in submitting regulation 7.38 to the EPA said

    that it was adopted pursuant to M.G.L. ch. 111, 142B and

    142D, not section 142A. Section 142B establishes a Boston

    area pollution control district and gives the Department of

    Environmental Protection authority to issue rules and

    regulations to prevent pollution in the district. Regulation



    ____________________

    9The Clean Air Act requires a state to provide
    "necessary assurances" that it has authority under state law
    to carry out the implementation plan. 42 U.S.C.
    7410(a)(2)(E)(i).

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    7.38, which is directed exclusively to the Boston district,

    appears to fit comfortably within the ambit of section 142B.

    The rulemaking provision of section 142B, unlike section

    142A, contains no requirement for approval of rules by the

    state's governor or council.

    The Sierra Club's contrary argument is based on

    confusing language in M.G.L. ch. 111, 142A, a broader

    provision governing air pollution in general. In its opening

    sentence, this section says that the Department of

    Environmental Protection, "in this section and in sections

    one hundred and forty-two B to one hundred and forty-two E,

    inclusive, hereinafter called the department" may subject to

    the approval of the governor and council adopt regulations to

    control pollution. Id. The Sierra Club apparently reads
    ___

    this sentence as extending the governor-and-council approval

    requirement of section 142A to rules made under section 142B.

    We think the more natural reading of the quoted language

    in section 142A is to specify that the term "department,"

    when used without further explanation in the cited later

    sections, means the Department of Environmental Protection.

    Section 142B, for example, does refer only to "the

    department." Nor is there anything remarkable about

    requiring governor-and-council approval for general

    regulations while not doing so for those directed to a single

    district; indeed, the Sierra Club reading would make the



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    grant of rulemaking power in section 142B redundant.

    Accordingly, we reject this challenge to the EPA's approval

    and dismiss the petition to review.

    The government brief construes the Sierra Club's

    argument to embrace, in addition to the claim just rejected,

    a further claim that regulation 7.38 cannot be applied

    "retroactively" to the central artery and tunnel at issue in

    this case. The regulation by its terms is intended to apply

    to the project. See 310 C.M.R. 7.38(1). In response the
    ___

    government argues at length that under Massachusetts law

    whatever retroactivity may be involved in applying the new

    regime to a previously planned but unbuilt portion of a

    project is permissible.

    It is not entirely clear that the Sierra Club is making

    the argument attributed to it by the government. However

    this may be, the EPA did not suggest that its approval of the

    regulation depended on how or whether it would be applied to

    existing projects; the EPA's notice of approval does not

    discuss retroactivity at all. There is no reason to suppose

    that EPA's approval is at all dependent on the retroactivity

    issue. We have no need, in fact no warrant, to decide an

    issue that is not material either to the district court

    judgment nor to the validity of the EPA action that is the

    subject of the petition to review.





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    The judgment of the district court is affirmed. The
    ________

    petition for review is denied.
    ______

















































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