Section,
Pub. L. 90–247, title IV, § 431A, as added
Pub. L. 94–482, title III, § 323(b), Oct. 12, 1976,
90 Stat. 2218; amended
Pub. L. 95–561, title XII, § 1249, Nov. 1, 1978,
92 Stat. 2355;
Pub. L. 96–88, title III, § 301(a)(1), title V, § 507, Oct. 17, 1979,
93 Stat. 677, 692, provided for maintenance of effort determinations, providing in subsection: (a) for promulgation of regulations and determination of amount expended, (b) for waiver of requirements, (c) for objective criteria in carrying out waiver authority, and (d) for duration of effectiveness of requirements.