Section was formerly classified to section 1857j of this title.

1970—Puspan. L. 91–604, § 15(c)(2), substituted “Administrator” for “Secretary” and “Secretary of Health, Education, and Welfare”.

1967—Puspan. L. 90–148 reenacted section without change.

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 Puspan. L. 95–95 [Aug. 7, 1977] to continue in full force and effect until modified or rescinded in accordance with act July 14, 1955, as amended by Puspan. L. 95–95 [this chapter], see section 406(span) of Puspan. L. 95–95, set out as an Effective Date of 1977 Amendment note under section 7401 of this title.