Title 42, The Public Health and WelfareRelease 119-102
§7478 Period Before Plan Approval
Title 42 › CHAPTER 85 — AIR POLLUTION PREVENTION AND CONTROL › SUBCHAPTER I — PROGRAMS AND ACTIVITIES › Part C — Prevention of Significant Deterioration of Air Quality › subpart i — clean air › § 7478
Full Legal Text
Title 42, §7478
The Public Health and Welfare, Source: USLM XML via OLRC
(a)Until such time as an applicable implementation plan is in effect for any area, which plan meets the requirements of this part to prevent significant deterioration of air quality with respect to any air pollutant, applicable regulations under this chapter prior to August 7, 1977, shall remain in effect to prevent significant deterioration of air quality in any such area for any such pollutant except as otherwise provided in subsection (b).
(b)If any regulation in effect prior to August 7, 1977, to prevent significant deterioration of air quality would be inconsistent with the requirements of section 7472(a), section 7473(b) or section 7474(a) of this title, then such regulations shall be deemed amended so as to conform with such requirements. In the case of a facility on which construction was commenced (in accordance with the definition of “commenced” in section 7479(2) of this title) after June 1, 1975, and prior to August 7, 1977, the review and permitting of such facility shall be in accordance with the regulations for the prevention of significant deterioration in effect prior to August 7, 1977.
Legislative History
Notes & Related Subsidiaries
Editorial Notes
Amendments
1977—Subsec. (b). Pub. L. 95–190 substituted “(in accordance with the definition of ‘commenced’ in section 7479(2) of this title)” for “in accordance with this definition”.
Reference
Citations & Metadata
Citation
42 U.S.C. § 7478
Title 42, The Public Health and Welfare
Last Updated
Aug 21, 2026
Release point: 119-102