1984—Subsec. (b). Pub. L. 98–512 inserted provisions authorizing appropriations for fiscal year ending 
1983—Subsec. (b). Pub. L. 97–414, § 8(n), substituted a semicolon for a comma after “1981”.
Pub. L. 97–414, § 9(a), amended directory language of Pub. L. 97–35, § 931(a)(2), to correct a typographical error and did not involve any change in text. See 1981 Amendment note below.
1981—Subsec. (b). Pub. L. 97–35, as amended by Pub. L. 97–414, § 9(a), inserted provisions authorizing appropriations for fiscal years ending 
1978—Subsec. (b). Pub. L. 95–613 inserted provisions authorizing appropriations for fiscal years ending 
1977—Subsec. (b). Pub. L. 95–83 substituted provision authorizing appropriations for fiscal years ending 
1975—Subsec. (b). Pub. L. 94–63 inserted provisions authorizing appropriations for fiscal years ending 
1973—Subsec. (b). Pub. L. 93–45 inserted provisions authorizing appropriations for fiscal year ending 
Amendment by section 202(b) of Pub. L. 94–63 effective