Section, Pub. L. 92–225, title III, § 320, formerly § 311, Feb. 7, 1972, 86 Stat. 19; renumbered § 321, Pub. L. 93–443, title II, § 208(a), Oct. 15, 1974, 88 Stat. 1279; renumbered § 320, Pub. L. 94–283, title I, § 105, May 11, 1976, 90 Stat. 481, provided penalties of not more than $1,000 fine or not more than 1 year imprisonment, or both for violations of this subchapter. See section 441j of this title.