Us Code § 7478 - Period before plan approval
Full text of Us Code United States Code § 7478 — Period before plan approval, with citation guidance and answers to common questions.
§ 7478. Period before plan approval
(a) Existing regulations to remain in effect
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) Regulations deemed amended; construction commenced after June 1, 1975
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.
(July 14, 1955, ch. 360, title I, §168, as added Pub. L. 95–95, title I, §127(a), Aug. 7, 1977, 91 Stat. 740; amended Pub. L. 95–190, §14(a)(52), Nov. 16, 1977, 91 Stat. 1402.)
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".
About This Section
42 U.S.C. § 7478 is part of Title 42 of the United States Code. The United States Code is the official codification of federal statutes maintained by the Office of the Law Revision Counsel of the U.S. House of Representatives. Congress amends the Code through new public laws, which are eventually incorporated into the relevant title.
This section may be cited in legal writing as 42 U.S.C. § 7478. For the most current official text, including any recent amendments, use the official source links below. Do not rely on this page as the sole authority for legal citation or litigation.
How to Read This Statute
Statutes are organized by title, chapter, section, and subsection. Pay attention to words like "shall," "may," "and," and "or," because they determine whether a requirement is mandatory or permissive and whether multiple conditions must all be met. Historical notes and amendments often appear at the end of a section.
Using This Page
This page is intended for research and educational use. Lawyers, students, journalists, and compliance professionals can use it as a starting point, but should always verify the current text through an official government source before relying on it for legal advice, filings, or compliance decisions.