2022—Subsec. (a)(145). Pub. L. 117–328, § 403(a), added par. (145). Subsec. (a)(146). Pub. L. 117–328, § 404(a), added par. (146). Subsec. (b)(22). Pub. L. 117–328, § 403(b), added par. (22). Subsec. (b)(23). Pub. L. 117–328, § 404(b), added par. (23). 2014—Subsec. (a)(141). Pub. L. 113–291, § 3041(e)(2)(A), added par. (141). Subsec. (a)(142) to (144). Pub. L. 113–291, § 3074(a), added pars. (142) to (144). Subsec. (b)(20). Pub. L. 113–291, § 3041(e)(2)(B), added par. (20). Subsec. (b)(21). Pub. L. 113–291, § 3074(b), added par. (21). 2009—Subsec. (a)(140). Pub. L. 111–11, § 5101(a), added par. (140). Subsec. (b)(19). Pub. L. 111–11, § 5101(b), added par. (19). 2006—Subsec. (a)(139). Pub. L. 109–370 added par. (139). 2001—Subsec. (a)(138). Pub. L. 107–65, § 3, added par. (138). Subsec. (b)(18). Pub. L. 107–65, § 4, added par. (18). 2000—Subsec. (a)(136). Pub. L. 106–318, § 3(1), designated unnumbered par. relating to Wekiva River, Florida, as par. (136). Subsec. (a)(137). Pub. L. 106–318, § 3(2), added par. (137). Subsec. (b)(8), (10). Pub. L. 106–318, § 4(1), redesignated par. (8) relating to study of St. Marys River, Florida and Georgia, as (10). Subsec. (b)(11) to (14). Pub. L. 106–318, § 4(2)–(4), redesignated par. (11) relating to study of White Clay Creek, Delaware and Pennsylvania, as (12), par. (11) relating to study of segments of Brule, Carp, and other rivers in Michigan as (13), and par. (11) relating to study of segments of Delaware River in Pennsylvania and New Jersey as (14). Subsec. (b)(15). Pub. L. 106–318, § 4(5), designated unnumbered par. relating to study of Rio Grande, New Mexico, as par. (15). Subsec. (b)(16). Pub. L. 106–318, § 4(6), (7), designated unnumbered par. relating to study of Wekiva River, Florida, and its tributaries as par. (16) and substituted “paragraph (136)” for “paragraph ( )”. Subsec. (b)(17). Pub. L. 106–318, § 4(8), added par. (17). 1996—Subsec. (a). Pub. L. 104–311, § 1, added unnumbered par. relating to Wekiva River, Florida. Subsec. (a)(106), (108). Pub. L. 104–333, § 407(b)(1), redesignated par. (106), relating to St. Marys River, Florida, as (108). Subsec. (a)(109) to (111). Pub. L. 104–333, § 407(b)(3), designated unnumbered pars. relating to Mills River, North Carolina, Sudbury, Assabet, and Concord, Massachusetts, and Niobrara, Nebraska, as pars. (109) to (111), respectively. Subsec. (a)(112), (113). Pub. L. 104–333, § 407(b)(2), (3), designated unnumbered par. relating to Lamprey, New Hampshire as par. (112) and redesignated former par. (112), relating to White Clay Creek, Delaware and Pennsylvania, as (113). Subsec. (a)(114) to (135). Pub. L. 104–333, § 407(b)(3), designated unnumbered pars. relating to various rivers as pars. (114) to (135). Subsec. (b). Pub. L. 104–311, § 2, added unnumbered par. relating to study of Wekiva River, Florida, and its tributaries. 1994—Subsec. (a). Pub. L. 103–242, § 3(a), added unnumbered par. relating to Rio Grande, New Mexico. Subsec. (b). Pub. L. 103–242, § 3(b), added unnumbered par. relating to study of Rio Grande, New Mexico. 1992—Subsec. (a). Pub. L. 102–525 added unnumbered par. relating to New River, West Virginia and Virginia. Pub. L. 102–460, § 1(a), added unnumbered par. relating to Delaware River, Pennsylvania and New Jersey. Pub. L. 102–432 added unnumbered par. relating to North Fork Merced, California. Pub. L. 102–301 added unnumbered pars. relating to the following rivers in California: Piru Creek, Little Sur River, Matilija Creek, Lopez Creek, and Sespe Creek. Pub. L. 102–271 added unnumbered pars. relating to Clarion River and Mill Creek, Pennsylvania. Pub. L. 102–249, § 4(a), added unnumbered pars. relating to the Brule River in Michigan and Wisconsin, and the following rivers in Michigan: Carp, Little Manistee, White, Ontonagon, Paint, Presque Isle, Sturgeon (Ottawa National Forest), Sturgeon (Hiawatha National Forest), Tahquamenon, and Whitefish. Subsec. (b)(11). Pub. L. 102–460, § 1(b), added par. (11) relating to study of segments of Delaware River in Pennsylvania and New Jersey. Pub. L. 102–249, § 4(b), added par. (11) relating to study of segments of Brule, Carp, and other rivers in Michigan. 1991—Subsec. (a). Pub. L. 102–214, § 2, added unnumbered par. relating to Lamprey River, New Hampshire. Pub. L. 102–50 added unnumbered par. relating to Niobrara River, Nebraska. Subsec. (a)(112). Pub. L. 102–215, § 3, added par. (112). Subsec. (b)(11). Pub. L. 102–215, § 4, added par. (11) relating to study of White Clay Creek, Delaware and Pennsylvania. Pub. L. 102–214, § 3, added par. (11) relating to study of Lamprey River, New Hampshire. 1990—Subsec. (a). Pub. L. 101–628 added unnumbered par. relating to Sudbury, Assabet, and Concord rivers in Massachusetts. Pub. L. 101–538 added unnumbered par. relating to Mills River, North Carolina. Subsec. (a)(106). Pub. L. 101–364, § 1(a), added par. (106) relating to St. Marys River, Florida and Georgia. Pub. L. 101–356, § 2, added par. (106) relating to Merrimack River, New Hampshire. Subsec. (a)(107). Pub. L. 101–357, § 2, added par. (107). Subsec. (b)(8). Pub. L. 101–364, § 1(b), added par. (8) relating to study of St. Marys River, Florida and Georgia. Pub. L. 101–356, § 3, added par. (8) relating to study of Merrimack River, New Hampshire. Subsec. (b)(9). Pub. L. 101–357, § 3, added par. (9). 1989—Subsec. (a)(96), (99). Pub. L. 101–40, § 2(b)(1), redesignated par. (96), relating to Merced River, California, as par. (99). Subsec. (a)(100) to (105). Pub. L. 101–40, § 2(b)(2), designated unnumbered paragraphs relating to rivers in Oregon as pars. (100) to (105). 1988—Subsec. (a). Pub. L. 100–557, § 103, added unnumbered pars. relating to the following rivers in Oregon: Blue, Chewaucan, North Fork Malheur, South Fork McKenzie, Steamboat Creek, and Wallowa. Subsec. (d). Pub. L. 100–557, § 104, designated existing provisions as par. (1) and added par. (2). 1987—Subsec. (a)(94), (95). Pub. L. 100–149, § 2(b), designated pars. relating to Klickitat and White Salmon as pars. (94) and (95), respectively. Subsec. (a)(96). Pub. L. 100–149, § 2(a), added par. (96) relating to Merced, California. Pub. L. 100–33 added par. (96) relating to Maurice, New Jersey. Subsec. (a)(97), (98). Pub. L. 100–33 added pars. (97) and (98). 1986—Subsec. (a)(90), (91). Pub. L. 99–590, § 503(a), redesignated par. (90), relating to North Umpqua, Oregon, as par. (91). Subsec. (a)(92), (93). Pub. L. 99–590, §§ 201(b), 301(a), added pars. (92) and (93). Subsec. (a)(94), (95). Pub. L. 99–663 added at end two unnumbered pars., relating to Klickitat, Washington, and White Salmon, Washington, which were designated as pars. (94) and (95), respectively, by Pub. L. 100–149. Subsec. (b)(1). Pub. L. 99–590, § 503(b), inserted provisions relating to completion and transmission of reports to Congress not later than Jan. 1, 1987. Subsec. (b)(3). Pub. L. 99–590, § 301(b), inserted provisions relating to completion date of study of river named in subsec. (a)(93). Subsec. (b)(4). Pub. L. 99–590, § 503(c), amended par. (4) generally, substituting provisions authorizing appropriations for purposes of conducting studies of rivers named in subsec. (a), for provisions authorizing appropriations for the purpose of conducting studies of rivers named in pars. (28) through (56), (59) through (76), (90), and (93) of subsec. (a). Pub. L. 99–590, § 301(c), inserted provisions authorizing an appropriation of not to exceed $150,000 for conducting study of river named in subsec. (a)(93). Subsec. (b)(7). Pub. L. 99–590, § 202(c), added par. (7). 1984—Subsec. (a)(89). Pub. L. 98–323 added par. (89). Subsec. (a)(90). Pub. L. 98–494 added par. (90) appearing second relating to North Umpqua, Oregon. Pub. L. 98–484, § 5(a), added par. (90) appearing first relating to Horsepasture, North Carolina. Subsec. (b)(3). Pub. L. 98–484, § 5(b), required completion of the study of the Horsepasture River, North Carolina, within three years after Oct. 17, 1984. Subsec. (b)(4). Pub. L. 98–484, § 5(c), authorized appropriations for conducting study of the Horsepasture River, North Carolina. Subsec. (b)(5), (6). Pub. L. 98–484, § 5(c), redesignated pars. (4) and (5) added by Pub. L. 96–487, § 604(b), as pars. (5) and (6), respectively. 1980—Subsec. (a)(76). Pub. L. 96–199, § 102(a), added par. (76). Subsec. (a)(77) to (88). Pub. L. 96–487, § 604(a), added pars. (77) to (88). Subsec. (b)(3), (4). Pub. L. 96–199, § 102(b), substituted “(76)” for “(75)”. Subsec. (b)(4), (5). Pub. L. 96–487, § 604(b), added second par. (4) and par. (5). See 1984 Amendment note above. 1979—Subsec. (b)(3). Pub. L. 96–87, § 404(a), substituted “paragraphs (59) through (75)” for “paragraphs (59) through (72)”. Subsec. (b)(4). Pub. L. 96–87, § 404(b), substituted “subparagraphs (59) through (75)” for “subparagraphs (59) through (74)”. 1978—Subsec. (a)(59) to (75). Pub. L. 95–625, §§ 721–734, 1108, added pars. (59) to (75). Subsec. (b)(3), (4). Pub. L. 95–625, §§ 735, 736, added par. (3), redesignated former par. (3) as (4), and increased appropriations authorization for certain studies to $4,060,000 from $2,175,000 and authorized necessary appropriations for certain other river studies. 1976—Subsec. (a)(47). Pub. L. 94–486, § 701, struck out “including the tributaries and headwaters on national forest lands” after “Colorado Highway 160”. Subsec. (a)(58). Pub. L. 94–486, § 401, added par. (58). 1975—Subsec. (a)(28) to (56). Pub. L. 93–621, § 1(a), added pars. (28) to (56). Subsec. (a)(57). Pub. L. 94–199 added par. (57). Subsecs. (b) to (d). Pub. L. 93–621, § 1(b), added subsec. (b) and redesignated former subsecs. (b) and (c) as (c) and (d), respectively. 1974—Subsecs. (b) to (d). Pub. L. 93–279 redesignated subsecs. (c) and (d) as (b) and (c), respectively. Former subsec. (b), relating to the study of rivers named in subsec. (a) of this section for inclusion in the national wild and scenic river system and submission of reports to the President and the Congress, was incorporated in
section 1275(a) of this title.
of 1984 Amendment Pub. L. 98–484, § 6, Oct. 17, 1984, 98 Stat. 2260, provided that: “The provisions of this Act [amending this section] shall take effect on the date of the enactment of this Act [Oct. 17, 1984].” Effect on Management of Little Manatee River, Florida Pub. L. 117–328, div. DD, title IV, § 403(c), Dec. 29, 2022, 136 Stat. 5599, provided that: “This section [amending this section] and the