Opinion for the Court filed by Circuit Judge TATEL.
Yet again we face a challenge to the Environmental Protection Agency’s regulation of ozone under the Clean Air Act. At issue this time is an EPA “guidance document” addressing obligations of regions still in nonattainment of a now-revoked ozone air quality standard. Petitioner argues that the Guidance amounts to a legislative rule issued in violation of the Administrative Procedure Act’s notice and comment requirement and that its substantive content is contrary to law. Firing nearly all the arrows in its jurisdictional quiver, EPA argues that petitioner lacks standing, that the Guidance does not qualify as final agency action, and that petitioner’s claims are unripe for judicial review. As we explain in this opinion, all three arrows miss their target. On the merits, we conclude that the Guidance qualifies as a legislative rule that EPA was required to issue through notice and comment rulemaking and that one of its features — the so-called attainment alternative — violates the Clean Air Act’s plain language. We therefore grant the petition for review and vacate the Guidance.
I.
The Clean Air Act requires EPA to establish national ambient air quality standards (NAAQS) for certain criteria pollutants, including ozone. 42 U.S.C. § 7409(a). Regions in nonattainment of those standards are subject to “additional restrictions over and above the [Act’s] implementation requirements.”
Whitman v. Am. Trucking Ass’ns,
Until 1997, EPA had in place a 1-hour ozone NAAQS prohibiting average hourly concentrations from exceeding .12 parts per million. The 1990 amendments, including the table specifying nonattainment classifications and attainment deadlines, incorporate that 1-hour standard.
Id.
§ 7511(a)(1). In 1997, however, EPA found the 1-hour standard insufficient to “protect the public health,”
id.
§ 7409(b), and so promulgated an 8-hour standard of .08 parts per million.
National Ambient Air Quality Standards for Ozone: Final Rule,
62 Fed.Reg. 38,856, 38,863 (July 18, 1997) (codified at 40 C.F.R. pt. 50) (“1997 Ozone Rule”). Because the .12 parts per million 1-hour standard roughly corresponds to a .09 parts per million 8-hour standard, the revision changed not only “the measuring stick [but also] the target.”
S. Coast Air Quality Mgmt. Dist. v. EPA,
Reviewing the 1997 rule in
Whitman v. American Trucking Ass’ns,
the Supreme Court observed that even though Subpart 2 expressly relies on the 1-hour standard, EPA remained free to revise the NAAQS.
Following
American Trucking,
EPA tried again to reconcile Subpart 2 with the new 8-hour standard.
See Final Rule to Implement the 8-Hour Ozone National Ambient Air Quality Standard
— Phase
1,
69 Fed.Reg. 23,951 (Apr. 30, 2004) (codified at 40 C.F.R. pts. 50, 51, 81). In a 2004 rulemaking, the agency determined that Subpart 2 would apply only to areas in
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nonattainment of both the 1-hour and the 8-hour standards, but that the 1-hour standard would be withdrawn in full one year after the 8-hour standard’s effective date. Pursuant to this new scheme, 76 of the 122 then-non-attaining areas would be subject only to Subpart 1.
S. Coast,
In South Coast Air Quality Management District v. EPA we rejected a challenge to EPA’s withdrawal of the 1-hour standard but vacated the portions of the rule exempting areas in nonattainment of only the 8-hour standard from Subpart 2 strictures. Id. at 892-95. At the least, we held, Subpart 2 must apply for areas with 8-hour concentrations exceeding .09 parts per million, the 8-hour equivalent of the 1-hour standard on which Congress relied in enacting Subpart 2. Id. at 892-94. For areas with 8-hour concentrations between .08 parts per million (the new standard) and .09 parts per million, we found that EPA’s sole reason for excluding these areas from Subpart 2 — to create regulatory flexibility and thus “maximize its own discretion” — contradicted the “clear intent of Congress.” Id. at 894-95. We also concluded that although EPA’s interpretation of section 172(e) was reasonable, the same could not be said for its exclusion of section 185 fees from “applicable controls.” Id. at 900, 902-03. We explained: “[a]s Congress set the penalty deadline well into the future, giving states and industry ample notice and sufficient incentives to avoid the penalties, they were ‘applicable’ before they were actually imposed ..., [and] [because these penalties were designed to constrain ozone pollution, they are controls that section 172(e) requires to be retained.” Id. at 903. Responding to EPA’s *316 argument that enforcement would be impractical because the penalty calculation relied on the no-longer-measured 1-hour standard, we warned that “section 172(e) does not condition its strict distaste for backsliding on EPA’s determinations of expediency; EPA must determine its procedures after it has identified what findings must be made under the Act.” Id. In sum, we ruled that pursuant to section 172(e)’s anti-backsliding principles, an area subject to section 185 penalties due to its classification under the now-defunct 1-hour standard must apply those penalties as an “applicable control” if the area missed its attainment deadline under the 1-hour standard.
Now before us is EPA’s latest attempt to reconcile the 8-hour standard with Sub-part 2. This time its effort relates only to the application of section 185 fees to the eight regions in severe or extreme nonattainment of the 1-hour standard: Baltimore, Baton Rouge, Houston, New York City, Sacramento, the San Joaquin Valley, the South Coast Air Basin (CA), and the Southeast Desert (CA). Because attainment deadlines for the eight regions have now expired, all are in the process of developing section 185 implementation plans. Faced with the prospect of hefty fees, industry groups complained to EPA that because they already had in place the best available emission control technology, they could reduce emissions and thus avoid fees only by cutting production. Report of the U.S. EPA Clean Air Act Advisory Committee Task Force on Section 185 of the Clean Air Act 3 (May 12, 2009) (included at J.A. 56). Moreover, they asserted, because section 185 set such a low emissions threshold for major stationary sources, the fees would apply to many small businesses, as well as to hospitals and schools. Id. at 4. Lastly, they alleged that stationary sources contribute far less to overall air pollution today than they did in 1990 and face far higher marginal costs for further reduction than do mobile sources. Id. at 3.
To address these concerns, the Clean Air Act Advisory Committee, a body created by the 1990 Amendments to advise EPA on scientific and industry developments relevant to rule making, established a task force that generated a list of section 185 alternatives including shifting costs to mobile sources and implementing market-based programs. Environmental organizations participating in the task force submitted an “Alternative Opinion” criticizing the policy rationales of the industry groups and asserting that the statute allowed no alternatives. The Committee submitted the task force report to EPA along with the following question: “Is it legally permissible under either section 185 or 172(e) for a State to exercise the discretion identified in [the options listed in this letter]?” Letter from Eddie Terrill & Robert Wyman, Co-chairs of the Section 185 Task Force, to Elizabeth Craig, Acting Assistant Administrator, Office of Air & Radiation (May 16, 2009) (“Task Force Letter ”) (included at J.A. 51).
In response, EPA issued a “Guidance” document aimed at Regional Air Division Directors — the agency officials directly responsible for implementation plan approval. That January 5, 2010, document explains to Directors that
[i]n the implementation rule for the 1997 ozone NAAQS, EPA determined that although section 172(e) does not directly apply where EPA has strengthened the NAAQS, as it did in 1997, it was reasonable to apply the same principle for the transition from the 1-hour NAAQS to the 1997 8-hour NAAQS. As part of applying the principle in section 172(e) for purposes of the transition from the 1-hour standard to the 1997 8-hour standard, EPA can either require states *317 to retain programs that applied for purposes of the 1-hour standard, or alternatively can allow states flexibility to adopt alternative programs, but only if such alternatives are ‘not less stringent’ than the mandated program.
Memorandum from Stephen D. Page, Director, Office of Air Quality Planning & Standards to Regional Air Division Directors 3 (Jan. 5, 2010) {“Fee Program Guidance ”) (included at J.A. 66). In other words, EPA believes 1-hour nonattainment areas have flexibility to choose between the statutorily mandated program and an equivalent — i.e., the program alternative.
In addition to that alternative, the Guidance explains, regions attaining either the 1-hour or the 8-hour standard can avoid section 185 fees through an “attainment alternative.” Specifically, in such regions the existing 8-hour implementation controls would qualify as a “not less stringent” alternative to section 185 fees. Id. at 3-4. In other words, a region satisfying the 8-hour standard would have no obligation to pay section 185 fees even though it remained in nonattainment of the 1-hour standard. The Guidance sets forth two justifications for the attainment alternative. First, “it would unfairly penalize sources in these areas to require that fees be paid after an area has attained the 8-hour standard due to permanent and enforceable emission reductions because the fees were imposed due to a failure to meet the applicable attainment deadline for the 1-hour standard, not any failure to achieve the now applicable 8-hour standard by its attainment date.” Id. at 4. Second, because EPA no longer redesignates areas under the 1-hour standard, “relief from the 1-hour fee program requirements under the terms of the statute is an impossibility, since the conditions the statute envisioned for relieving an area of its fee program obligation” — reclassification as in attainment of the 1-hour standard- — “no longer can exist.” Id.
As to both the program and attainment alternatives, the Guidance explains that approval of individual alternatives would occur on a case-by-case basis. Specifically, if after preliminarily assessing a proposal, EPA were to find the alternative satisfactory, it would proceed with notice and comment to finalize that finding. Id. at 3.
On March 5, 2010, the Natural Resources Defense Council (NRDC) filed a petition for review of the Guidance pursuant to Clean Air Act section 807(b)(1), which gives this court exclusive jurisdiction over challenges to final EPA actions. 42 U.S.C. § 7607(b)(1). NRDC argues that EPA violated the Administrative Procedure Act by issuing the Guidance without notice and comment and that both the program and attainment alternatives violate the Clean Air Act. In response, EPA argues that NRDC lacks standing, that the Guidance fails to qualify as final agency action, and that NRDC’s challenges are unripe for review. On the merits, EPA contends that the Guidance is either a policy statement or an interpretive rule and, in either case, is exempt from the notice and comment requirement. It also defends both alternatives as permissible exercises of statutory gapfilling. Numerous industry groups and the South Coast Air Quality Management District have intervened in support of EPA.
II.
NRDC argues that it has “organizational standing” due to alleged injuries suffered by two of its members.
Sierra Club v. EPA,
In our view, the Guidance injures NRDC’s members in three independent ways. First, the Guidance caused several nonattainment areas, including Houston and the San Joaquin Valley, to abandon plans to submit section-185-compliant implementation plans, thus delaying, at the very least, implementation of section 185, which in turn delays the reduction of ambient ozone and harms NRDC members.
See
Elena Craft Aff. ¶¶ 7-9; Sarah Jackson Aff. ¶¶ 6-12. Second, even in the San Joaquin Valley, where the attainment deadline had not yet passed at the time NRDC filed this petition, the Guidance had a present, concrete effect because it eliminated section 185’s powerful incentive for major stationary sources to reduce emissions before the deadline.
See S. Coast,
EPA nonetheless insists that the Guidance causes no injury because any approved alternative program will, by definition, be “not less stringent” than section 185 fees. Of course, this argument carries absolutely no weight with respect to the attainment alternative for which the Guid
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anee requires no equivalency analysis. The argument is also unpersuasive with respect to the program alternative. To begin with, it is possible that a plan EPA might legitimately find equivalent to a section 185 penalty (and which we would thus uphold on the merits) could nonetheless be so meaningfully different as to cause cognizable Article III injury. In any event, even assuming that a resulting program were perfectly equivalent, the delay in improving air quality would still injure NRDC members. EPA’s argument also proves far too much. Were EPA to prevail, although NRDC might well have standing to bring an as-applied challenge to any particular “not less stringent” determination, no one would have standing to challenge EPA’s authority to allow alternatives in the first place. Especially given that Congress enacted Subpart 2 for the very purpose of curtailing EPA discretion,
see Am. Trucking,
The next two jurisdictional issues— finality and ripeness — turn on the same question: whether the Guidance announces a binding change in the law.
Bennett v. Spear,
EPA insists that the Guidance changed nothing because prior to its issuance, a regional director could have considered an alternative. Perhaps so, but that director also retained discretion, now withdrawn by the Guidance, to reject the alternative solely for failing to comply with section 185. Indeed, this is essentially what happened when the San Joaquin Valley Unified Air Pollution Control District submitted a section 185 plan that exempted certain major stationary sources. After notice and comment, EPA rejected the plan for failure to comply with section 185, explaining that because San Joaquin never characterized the plan as an alternative, EPA had no need to “take a final position regarding whether it could approve a substitute program for the program specified under [Clean Air Act] section 185.” Revisions to the California State Implementation *320 Plan, San Joaquin Valley United Air Pollution Control District, 75 Fed.Reg. 1716, 1717-18 (Jan. 13, 2010). In other words, had San Joaquin asked EPA to treat its proposal as an alternative, the regional director might have performed an equivalency analysis or determined that alternatives were categorically unacceptable. Posl^Guidance, however, the director may no longer reject a plan on the latter ground. The permissibility of alternatives is now a closed question, and the Guidance leaves to future rulemakings only the issue of whether a specific proposed alternative satisfies the program or attainment option.
The Guidance’s language supports the conclusion that EPA has definitively interpreted section 172(e) as permitting alternatives. The Guidance explains that “EPA is electing to consider alternative programs to satisfy the section 185 fee program [implementation plan] revision requirement,” and the document announces that “[i]f [EPA’s] preliminary assessment indicates that the alternative program is not less stringent, we would issue a notice in the Federal Register proposing to make such a determination.” Fee Program Guidance at 3. By contrast, with regard to approvability of individual plans, the document expressly reserves discretion for future administrative action: “The remainder of this memorandum describes the circumstances under which we believe we can approve an alternative program that is ‘no less stringent.’ These interpretations will only be finalized through ... notice-and-comment rulemaking to address the fee program obligations associated with each applicable nonattainment area.” Id.
In sum, then, the Guidance altered the legal regime by resolving the question posed by the Clean Air Act Advisory Committee: “Is it legally permissible under either section 185 or 172(e) for a State to exercise the discretion identified in [the options listed in this letter]?”
Task Force Letter.
Answering that question affirmatively, the Guidance binds EPA regional directors and thus qualifies as final agency action.
Bennett,
III.
Given that the Guidance document changed the law, the first merits question — whether the Guidance is a legislative rule that required notice and comment — is easy.
See
5 U.S.C. § 553 (requiring that
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legislative rules, but not policy statements or interpretive rules, be issued only after notice and comment). To begin with, because the Guidance binds EPA regional directors, it cannot, as EPA claims, be considered a mere statement of policy; it is a rule.
Syncor Int’l Corp. v. Shalala,
Having concluded that EPA issued the Guidance in violation of the Administrative Procedure Act’s notice and comment requirement, we could simply vacate and end this opinion. NRDC, however, urges us to resolve its substantive claims, arguing that “a ruling on these questions is in the interest of judicial and administrative economies.” Pet’r’s Br. 26. Our case law provides little direction on whether, having determined to vacate on procedural grounds, we should nonetheless address substantive claims.
Compare Sprint Corp. v. FCC,
In deciding how to proceed here, we keep in mind two competing interests. On the one hand, we must avoid prejudging the notice and comment process, the very purpose of which is to give interested parties the opportunity to participate in rule-making and to ensure that the agency has before it all relevant information.
MCI Telecomms. Corp. v. FCC,
Evaluating the program alternative in light of these considerations, we believe that the interest in preserving the integrity of the notice and comment process strongly outweighs any concern about delay. Because neither the statute nor our case law obviously precludes that alternative, we believe that by weighing in now we would unfairly prejudge any future notice and comment process.
*322 The attainment alternative presents a very different situation. Because it violates the statute’s plain language and our precedent, nothing would be gained by postponing a decision on the merits. Indeed, doing so would exacerbate the delay that is harming NRDC.
We begin with the statute.
Chevron, U.S.A., Inc. v. Natural Res. Def. Council, Inc.,
The attainment alternative also exceeds several of the limits to EPA’s gapfilling discretion that we identified in
South Coast. See Sierra Club v. EPA,
In concluding that EPA has once again “failed to heed the restrictions on its discretion set forth in the [Clean Air] Act,”
S. Coast,
IV.
For the foregoing reasons, we grant the petition for review and vacate the Guidance.
So ordered.
