The Comprehensive Drug Abuse Prevention and Control Act of 1970, referred to in text, is Pub. L. 91–513, Oct. 27, 1970, 84 Stat. 1236. Title II of this Act, known as the Controlled Substances Act, is classified principally to subchapter I (§ 801 et seq.) of chapter 13 of Title 21, Food and Drugs. Title III of this Act, known as the Controlled Substances Import and Export Act, is classified principally to subchapter II (§ 951 et seq.) of chapter 13 of Title 21. Section 413 of this Act is classified to section 853 of Title 21. For complete classification of this Act to the Code, see Short Title note set out under sections 801 and 951 of Title 21 and Tables.

Section effective Nov. 1, 1987, and applicable only to offenses committed after the taking effect of this section, see section 235(a)(1) of Pub. L. 98–473, set out as a note under section 3551 of this title.