Section, added
Pub. L. 95–30, title II, § 202(a), May 23, 1977,
91 Stat. 141; amended
Pub. L. 95–600, title III, § 321(b)(1), Nov. 6, 1978,
92 Stat. 2834;
Pub. L. 96–222, title I, § 103(a)(6)(G)(i), (ii), Apr. 1, 1980,
94 Stat. 210, related to credit for employment of certain new employees.