33 U.S.C. § 466m, 466n

act June 30, 1948, ch. 758, § 17 Nov. 3, 1966Pub. L. 89–753, title II, § 21080 Stat. 1252 July 1, 1967Section 466m, , as added , , , authorized a study by Secretary of the Interior, and a report to Congress not later than , of the extent of pollution of the navigable waters of the United States from litter and sewage deposited into such waters from watercraft.

act June 30, 1948, ch. 758, § 18 Nov. 3, 1966Pub. L. 89–753, title II, § 21080 Stat. 1252 Jan. 30, 1968Section 466n, , as added , , , authorized a study by Secretary of the Interior, and a report to Congress not later than , relating to incentives, including, but not limited to, tax and other financial incentives, to assist in the construction of industrial anti-pollution facilities.