40 CFR 51.918 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (§ 50.1 To Appendix Y To Part 51) — Environmental Protection Agency (Continued) (§ 50.1 To Appendix Y To Part 51) — Air Programs (§ 50.1 To Appendix Y To Part 51) — Requirements For Preparation, Adoption, And Submittal Of Implementation Plans (§ 51.1 To Appendix Y To Part 51) — Provisions For Implementation Of 8-Hour Ozone National Ambient Air Quality Standard (§ 51.900 To § 51.919) — Can any SIP planning requirements be suspended in 8-hour ozone nonattainment areas that have air quality data that meets the NAAQS?

4 Aug 2016

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.

40 CFR 51.918

[70 FR 71702, Nov. 29, 2005]