[Code of Federal Regulations] [Title 40, Volume 1] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR36.610] [Page 706] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY PART 36_GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE)--Table of Contents Subpart F_Definitions Sec. 36.610 Controlled substance. Controlled substance means a controlled substance in schedules I through V of the Controlled Substances Act (21 U.S.C. 812), and as further defined by regulation at 21 CFR 1308.11 through 1308.15.