The term “illegal use of drugs” means the use of drugs, the possession or distribution of which is unlawful under the Controlled Substances Act [21 U.S.C. 801 et seq.]. Such term does not include the use of a drug taken under supervision by a licensed health care professional, or other uses authorized by the Controlled Substances Act or other provisions of Federal law.
42 U.S. Code § 12210 - Illegal use of drugs
This chapter, referred to in subsecs. (a) and (b), was in the original “this Act”, meaning Pub. L. 101–336, July 26, 1990, 104 Stat. 327, which is classified principally to this chapter. For complete classification of this Act to the Code, see Short Title note set out under section 12101 of this title and Tables.
The Controlled Substances Act, referred to in subsec. (d)(1), is title II of Pub. L. 91–513, Oct. 27, 1970, 84 Stat. 1242, which is classified principally to subchapter I (§ 801 et seq.) of chapter 13 of Title 21, Food and Drugs. For complete classification of this Act to the Code, see Short Title note set out under section 801 of Title 21 and Tables.