Indiana v. Environmental Protection Agency
796 F.3d 803
7th Cir.2015Background
- Under the Clean Air Act (CAA), states must adopt EPA‑approved State Implementation Plans (SIPs) to achieve National Ambient Air Quality Standards (NAAQS); Section 110(l) forbids approving SIP revisions that would "interfere with" attainment.
- Illinois historically required vehicle emissions testing for model years 1968+, but in 2005 enacted a law (effective 2007) exempting pre‑1996 vehicles; EPA approval was not sought at the time.
- In 2011 a Zion, IL monitor recorded a single 8‑hour ozone exceedance (0.076 ppm), and EPA designated the Chicago area (including two Indiana counties) marginal nonattainment in 2012.
- Illinois submitted a SIP revision in 2012 seeking retroactive approval of the relaxed I/M program and included substitute emissions‑reduction credits (facility shutdowns 2002–2012) that it argued more than offset any increased emissions.
- EPA proposed and then finalized approval in 2014, concluding the revised I/M met the Alternate Low Enhanced standard and that substitute reductions were permanent, enforceable, contemporaneous, surplus, and offset the increases. Indiana challenged EPA’s approval.
- The Seventh Circuit held Indiana has standing (because continued nonattainment may force Indiana to undertake remedies) but denied review on the merits, finding EPA’s approval was not arbitrary and capricious.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Standing to challenge EPA approval | Indiana: approval makes attainment less likely and will force Indiana to take additional regulatory steps (concrete state injury) | EPA: current nonattainment resulted earlier and is not caused by the 2014 approval; parens patriae and Mellon limits state standing to sue U.S. for economic harms | Court: Indiana has standing (state burden of future regulatory obligations), so justiciable |
| Whether EPA acted arbitrarily/capriciously approving the SIP under Sec. 110(l) | Indiana: Illinois’s past unauthorized I/M relaxation caused the Zion exceedance; EPA should have rejected approval because real‑world data show past interference and future risk | EPA: Sec. 110(l) reasonably permits using substitute equivalent emissions reductions; EPA reasonably evaluated net emissions and concluded offsets were permanent, enforceable, contemporaneous, quantifiable, and surplus | Court: EPA’s decision upheld; application of substitute reductions and net‑emissions analysis not arbitrary or capricious |
| Use of real‑world past monitoring (versus modeling) in Sec. 110(l) analysis | Indiana: because the program operated pre‑approval, EPA should have relied on actual emissions/monitoring data, which show past interference | EPA: the statutory inquiry is prospective (will the revision interfere going forward) and may reasonably use offsets and modeling to assess net future effect | Court: EPA reasonably focused on future impact and net emissions; Indiana did not show real‑world data would change result |
| Contemporaneousness and crediting of substitute reductions | Indiana: EPA unreasonably treated facility closures over a ten‑year span (2002–2012) as contemporaneous and credited post‑2007 closures | EPA: contemporaneousness is case‑specific; even using 2005–2006 closures alone offsets the increase, and year‑by‑year aggregation of closures is appropriate | Court: although a 10‑year window is troubling, reliance on 2005–2006 reductions (two‑year span) made the point harmless; EPA’s contemporaneousness determination did not make approval arbitrary |
Key Cases Cited
- Lujan v. Defenders of Wildlife, 504 U.S. 555 (standing elements for Article III)
- Valley Forge Christian Coll. v. Am. United for Separation of Church & State, 454 U.S. 464 (traceability requirement for standing)
- Massachusetts v. Mellon, 262 U.S. 447 (limits on parens patriae suits against the United States)
- Massachusetts v. EPA, 549 U.S. 497 (state interests and "special solicitude")
- Michigan v. EPA, 581 F.3d 524 (7th Cir.) (discussion of state standing and harms to state economy)
- Sierra Club v. U.S. EPA, 774 F.3d 383 (7th Cir.) (context on CAA SIP and NAAQS framework)
- Chevron U.S.A., Inc. v. NRDC, 467 U.S. 837 (agency deference framework)
- Balt. Gas & Elec. Co. v. NRDC, 462 U.S. 87 (deference for agency scientific determinations)
- Gen. Motors Corp. v. United States, 496 U.S. 530 (effect of SIP approval as federal law)
- Citizens Against Ruining the Env’t v. EPA, 535 F.3d 670 (7th Cir.) (APA standard of review for EPA SIP decisions)