2018—Subsec. (b). Pub. L. 115–334 substituted “2023” for “2018”.
2015—Subsec. (b). Pub. L. 114–54 substituted “during fiscal years 2016 through 2018” for “for a period of five years beginning 
1993—Subsec. (a). Pub. L. 103–106, § 3(a)(1), inserted “, project,” after “administrative” and substituted “beginning 
Subsec. (b). Pub. L. 103–106, § 3(a)(2), substituted “beginning 
Pub. L. 103–106, § 2,