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.

Repeal applicable to taxable years beginning after Dec. 31, 1983, and to carrybacks from such years, see section 475(a) of Pub. L. 98–369, set out as an Effective Date of 1984 Amendment note under section 21 of this title.