Subsec. (f) of this section, which required the Secretary to transmit biennial reports to Congress on the results of reviews conducted under subsec. (a) of this section and on the programs conducted under subsecs. (b) and (c) of this section, terminated, effective May 15, 2000, pursuant to section 3003 of Pub. L. 104–66, as amended, set out as a note under section 1113 of Title 31, Money and Finance. See, also, page 72 of House Document No. 103–7.

Section was formerly set out as a note under section 2294 of this title.

2018—Subsec. (h). Pub. L. 115–270 substituted “$50,000,000” for “$40,000,000”.

2014—Subsec. (d). Pub. L. 113–121 substituted “The non-Federal share may be provided” for “Not more than 80 percent of the non-Federal share may be” and “$10,000,000” for “$5,000,000”.

2007—Subsec. (h). Pub. L. 110–114 substituted “$40,000,000” for “$25,000,000”.

2000—Subsecs. (g) to (i). Pub. L. 106–541 added subsec. (g) and redesignated former subsecs. (g) and (h) as (h) and (i), respectively.

1999—Subsec. (c). Pub. L. 106–53 designated existing provisions as par. (1), inserted heading, and added par. (2).

1996—Subsec. (a). Pub. L. 104–303, § 204(a), struck out “the operation of” after “to review” and inserted before period at end “and to determine if the operation of such projects has contributed to the degradation of the quality of the environment”.

Subsec. (b). Pub. L. 104–303, § 204(b), struck out at end “The non-Federal share of the cost of any modifications carried out under this section shall be 25 percent. No modification shall be carried out under this section without specific authorization by Congress if the estimated cost exceeds $5,000,000.”

Subsecs. (c), (d). Pub. L. 104–303, § 204(c)(2), added subsecs. (c) and (d). Former subsecs. (c) and (d) redesignated (e) and (f), respectively.

Subsec. (e). Pub. L. 104–303, § 204(c)(1), redesignated subsec. (c) as (e). Former subsec. (e) redesignated (g).

Subsec. (f). Pub. L. 104–303, § 204(c)(1), (3), redesignated subsec. (d) as (f) and substituted “programs conducted under subsections (b) and (c)” for “program conducted under subsection (b)”.

Subsec. (g). Pub. L. 104–303, § 204(c)(1), redesignated subsec. (e) as (g).

Subsec. (h). Pub. L. 104–303, § 204(d), added subsec. (h).

1992—Subsec. (b). Pub. L. 102–580, § 202(1), inserted at end “No modification shall be carried out under this section without specific authorization by Congress if the estimated cost exceeds $5,000,000.”

Subsec. (e). Pub. L. 102–580, § 202(2), substituted “$25,000,000” for “$15,000,000”.

1990—Subsec. (a). Pub. L. 101–640, § 304(a), struck out “before the date of enactment of this Act” after “constructed by the Secretary”.

Subsec. (b). Pub. L. 101–640, § 304(b), substituted “program” for “demonstration program in the 5-year period beginning on the date of enactment of this Act” and struck out “before the date of enactment of this Act” after “constructed by the Secretary”.

Subsec. (d). Pub. L. 101–640, § 304(c), amended subsec. (d) generally. Prior to amendment, subsec. (d) read as follows: “Not later than 5 years after the date of enactment of this Act, the Secretary shall transmit to Congress a report on the results of the review conducted under subsection (a) and on the demonstration program conducted under subsection (b). Such report shall contain any recommendations of the Secretary concerning modification and extension of such program.”

Subsec. (e). Pub. L. 101–640, § 304(d), substituted “$15,000,000 annually to carry out this section” for “$25,000,000 to carry out this section”.

1988—Subsec. (b). Pub. L. 100–676, § 41(a), substituted “5-year period” for “two-year period”.

Subsec. (d). Pub. L. 100–676, § 41(b), substituted “5 years” for “two years”.