1977—Subsec. (a). Pub. L. 95–217 inserted “pursuant to section 1342 of this title” after “Federal or State supervision”.

Subsec. (b). Pub. L. 95–217 struck out “, not later than January 1, 1974,” after “The Administrator shall by regulation” in existing provisions and inserted provisions that the regulations require the application to the discharge of each criterion, factor, procedure, and requirement applicable to a permit issued under section 1342 of this title, as the Administrator determines necessary to carry out the objectives of this chapter.

Subsec. (c). Pub. L. 95–217 added subsec. (c).