US lawFederal (United States)Session lawPub. L. 84-728 — To amend the Internal Revenue Code of 1954 and the Narcotic Drugs Import and Export Act to provide for a more effective control of narcotic drugs and marihuana, and for other related purposes.401Pub. L. 84-728, tit. IV, sec. 401EFFECTIVE DATE.EnactedYear: 1956Length: 24 wordsOfficial source SEC. 401. EFFECTIVE DATE. The amendments made by this Act shall take effect on the day following the date of enactment of this Act.PreviousPub. L. 84-728, tit. III, sec. 302NextPub. L. 84-728, tit. IV, sec. 402