U.S.C. Title 42 - THE PUBLIC HEALTH AND WELFARE 42 U.S.C. United States Code, 2023 Edition Title 42 - THE PUBLIC HEALTH AND WELFARE CHAPTER 85 - AIR POLLUTION PREVENTION AND CONTROL SUBCHAPTER I - PROGRAMS AND ACTIVITIES Part D - Plan Requirements for Nonattainment Areas subpart 1 - nonattainment areas in general Sec. 7508 - Guidance documents From the U.S. Government Publishing Office, www.gpo.gov
§7508. Guidance documents
The Administrator shall issue guidance documents under section 7408 of this title for purposes of assisting States in implementing requirements of this part respecting the lowest achievable emission rate. Such a document shall be published not later than nine months after August 7, 1977, and shall be revised at least every two years thereafter.
(July 14, 1955, ch. 360, title I, §178, as added Pub. L. 95–95, title I, §129(b), Aug. 7, 1977, 91 Stat. 750.)