C.F.R. » Title 40 » CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY › SUBCHAPTER C—AIR PROGRAMS › PART 51—REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF IMPLEMENTATION PLANS › Subpart X—Provisions for Implementation of 8-hour Ozone National Ambient Air Quality Standard

40 C.F.R. § 51.918

Can any SIP planning requirements be suspended in 8-hour ozone nonattainment areas that have air quality data that meets the NAAQS?

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Upon a determination by EPA that an area designated nonattainment for the 8-hour ozone NAAQS has attained the standard, the requirements for such area to submit attainment demonstrations and associated reasonably available control measures, reasonable further progress plans, contingency measures, and other planning SIPs related to attainment of the 8-hour ozone NAAQS shall be suspended until such time as: the area is redesignated to attainment, at which time the requirements no longer apply; or EPA determines that the area has violated the 8-hour ozone NAAQS.

[70 FR 71702, Nov. 29, 2005]
Notes of Decisions
Cited in 2 cases, 2009–2009 · leading case: Nat. Resources Def. Council v. Env't Prot. Agency, 571 F.3d 1245 (D.C. Cir. 2009).
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Nat. Resources Def. Council v. Env't Prot. Agency, 571 F.3d 1245 (D.C. Cir. 2009). · cites it 4× “40 C.F.R. § 51.918 . The suspension lasts "until .”
Nat Resrc Def Cncl v. EPA (D.C. Cir. 2009). · cites it 2× “40 C.F.R. § 51.918 . The suspension lasts “until .”
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