Section, act Aug. 1, 1956, ch. 841, title I, § 21, as added Aug. 17, 1977, Pub. L. 95–105, title I, § 112, 91 Stat. 848; amended Oct. 7, 1978, Pub. L. 95–426, title I, § 119, 92 Stat. 970; Aug. 15, 1979, Pub. L. 96–60, title I, § 109, 93 Stat. 397; renumbered title I, Aug. 24, 1982, Pub. L. 97–241, title II, § 202(a), 96 Stat. 282, related to compliance with the Helsinki Final Act in the granting of nonimmigrant visas to aliens who are excludible from the United States by reason of membership in or affiliation with a proscribed organization but who are otherwise admissible, and provided that this section not apply to representatives of labor organizations that are instruments of a totalitarian state or aliens connected with the Palestine Liberation Organization.

Section repealed applicable to individuals entering United States on or after June 1, 1991, see section 601(e)(1) of Pub. L. 101–649, set out as an Effective Date of 1990 Amendment note under section 1101 of Title 8, Aliens and Nationality.