Provisions similar to those in this section were contained in Puspan. L. 97–58, § 7(c), Oct. 9, 1981, 95 Stat. 987; Puspan. L. 98–364, title I, § 104(3), July 17, 1984, 98 Stat. 442; Puspan. L. 100–711, § 6(3), Nov. 23, 1988, 102 Stat. 4771, prior to repeal by Puspan. L. 103–238, § 9(c).

1994—Puspan. L. 103–238 amended section generally. Prior to amendment, section read as follows: “There are authorized to be appropriated for the fiscal year in which this subchapter is enacted and for the next five fiscal years thereafter such sums as may be necessary to carry out this subchapter, but the sums appropriated for any fiscal year other than the fiscal year ending September 30, 1978, shall not exceed $1,000,000, the sum appropriated for the fiscal year ending September 30, 1978, shall not exceed $2,000,000, the sum appropriated for the fiscal year ending September 30, 1979, shall not exceed $1,000,000, the sum appropriated for the fiscal year ending September 30, 1980, shall not exceed $1,000,000, and the sum appropriated for the fiscal year ending September 30, 1981, shall not exceed $1,000,000.”

1978—Puspan. L. 95–316 added provisions authorizing appropriations for the fiscal years ending Sept. 30, 1979, Sept. 30, 1980, and Sept. 30, 1981.

1977—Puspan. L. 95–136 substituted “five fiscal years” for “four fiscal years” and “the sums appropriated for any fiscal year other than the fiscal year ending September 30, 1978, shall not exceed $1,000,000, and the sum appropriated for the fiscal year ending September 30, 1978, shall not exceed $2,000,000” for “the sums appropriated for any such year shall not exceed $1,000,000” and struck out requirement that not less than two-thirds of the sums appropriated pursuant to this section for any such year be expended on research and studies under authority of section 1402(a)(2) and (3) of this title.

Section effective upon the expiration of the sixty-day period following Oct. 21, 1972, see section 4 of Puspan. L. 92–522, set out as a note under section 1361 of this title.