Section was formerly classified to section 1857h–7 of this title.

A prior section 309 of act July 14, 1955, ch. 360, title III, formerly § 13, as added Dec. 17, 1963, Pub. L. 88–206, § 1, 77 Stat. 401; renumbered § 306, Oct. 20, 1965, Pub. L. 89–272, title I, § 101(4), 79 Stat. 992; renumbered § 309, Nov. 21, 1967, Pub. L. 90–148, § 2, 81 Stat. 506; renumbered § 316, Dec. 31, 1970, Pub. L. 91–604, § 12(a), 84 Stat. 1705, related to appropriations and was classified to section 1857l of this title, prior to repeal by section 306 of Pub. L. 95–95. See section 7626 of this title.

All rules, regulations, orders, determinations, contracts, certifications, authorizations, delegations, or other actions duly issued, made, or taken by or pursuant to act July 14, 1955, the Clean Air Act, as in effect immediately prior to the date of enactment of Pub. L. 95–95 [Aug. 7, 1977] to continue in full force and effect until modified or rescinded in accordance with act July 14, 1955, as amended by Pub. L. 95–95 [this chapter], see section 406(b) of Pub. L. 95–95, set out as an Effective Date of 1977 Amendment note under section 7401 of this title.