Section was formerly classified to section 1857h–3 of this title.

A prior section 305 of act July 14, 1955, as added Nov. 21, 1967, Pub. L. 90–148, § 2, 81 Stat. 505, was renumbered section 312 by Pub. L. 91–604 and is classified to section 7612 of this title.

Another prior section 305 of act July 14, 1955, ch. 360, title III, formerly § 12, as added Dec. 17, 1963, Pub. L. 88–206, § 1, 77 Stat. 401, was renumbered section 305 by Pub. L. 89–272, renumbered section 308 by Pub. L. 90–148, and renumbered section 315 by Pub. L. 91–604, and is classified to section 7615 of this title.

1977—Pub. L. 95–95 designated existing provisions as subsec. (a) and added subsec. (b).

Amendment by Pub. L. 95–95 effective Aug. 7, 1977, except as otherwise expressly provided, see section 406(d) of Pub. L. 95–95, set out as a note under section 7401 of this title.

Suits, actions, and other proceedings lawfully commenced by or against the Administrator or any other officer or employee of the United States in his official capacity or in relation to the discharge of his official duties under act July 14, 1955, the Clean Air Act, as in effect immediately prior to the enactment of Pub. L. 95–95 [Aug. 7, 1977], not to abate by reason of the taking effect of Pub. L. 95–95, see section 406(a) of Pub. L. 95–95, set out as an Effective Date of 1977 Amendment note under section 7401 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 L. 95–95 [Aug. 7, 1977] to continue in full force and effect until modified or rescinded in accordance with act July 14, 1955, as amended by Pub.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.