1990—Pub. L. 101–246 inserted reference to drainage of transboundary storm waters.

1935—Act Aug. 19, 1935, amended section generally.

1927—Act Mar. 3, 1927, increased appropriation from $20,000 to $50,000.

International Boundary Commission, United States and Mexico, American section, to which powers, duties, and functions of International Water Commission, United States and Mexico, American section, were transferred by act June 30, 1932, ch. 314, pt. II, title V, § 510, 47 Stat. 417, reconstituted as International Boundary and Water Commission by Water Treaty of 1944.

Act Mar. 3, 1927, cited as a credit to this section, was repealed by Pub. L. 89–554, § 8(a), Sept. 6, 1966, 80 Stat. 647.

Jurisdiction, powers, or prerogatives of the International Boundary and Water Commission, United States and Mexico, unaffected by Water Resources Planning Act, see section 1962–1 of Title 42, The Public Health and Welfare.