2019—Par. (27). Pub. L. 115–436 added par. (27).

2014—Par. (26). Pub. L. 113–121 added par. (26).

2008—Par. (25). Pub. L. 110–288 added par. (25).

2005—Par. (24). Pub. L. 109–58 added par. (24).

2000—Pars. (21) to (23). Pub. L. 106–284 added pars. (21) to (23).

1996—Par. (6)(A). Pub. L. 104–106 substituted “ ‘sewage from vessels or a discharge incidental to the normal operation of a vessel of the Armed Forces’ ” for “ ‘sewage from vessels’ ”.

1988—Par. (20). Pub. L. 100–688 added par. (20).

1987—Par. (3). Pub. L. 100–4, § 502(a), inserted “the Commonwealth of the Northern Mariana Islands,” after “Samoa,”.

Par. (14). Pub. L. 100–4, § 503, inserted “agricultural stormwater discharges and” after “does not include”.

1977—Par. (14). Pub. L. 95–217 inserted provision that “point source” does not include return flows from irrigated agriculture.

Amendment by Pub. L. 113–121 effective Oct. 1, 2014, see section 5012(c) of Pub. L. 113–121, set out as a note under section 1292 of this title.

Pub. L. 100–4, title V, § 507, Feb. 4, 1987, 101 Stat. 78, provided that: “For purposes of the Federal Water Pollution Control Act [33 U.S.C. 1251 et seq.], the term ‘point source’ includes a landfill leachate collection system.”

For termination of Trust Territory of the Pacific Islands, see note set out preceding section 1681 of Title 48, Territories and Insular Possessions.

For extension of territorial sea and contiguous zone of United States, see Proc. No. 5928 and Proc. No. 7219, respectively, set out as notes under section 1331 of Title 43, Public Lands.