Crossword clues for Controlled substance 4 lettersAnswerClueDRUGControlled substancePCBSSubj. of the Toxic Substances Control Act of 1976PCB1976 Toxic Substances Control Act substanceDEAEnforcer of the Controlled Substances Act (abbr.)DEAControlled Substances Act org.PLACEBOControl substanceILLEGALDRUGCommonly controlled substanceDEAFed. overseer of the Controlled Substances ActEPAOrg. that enforces the Toxic Substances Control ActEPAOrg. charged with enforcing the Toxic Substances Control ActDEAControlled substance org.DEASubstance control org.DEAPENALTYFine for violating the Controlled Substances Act?CLASSCLike the least dangerous controlled substances, in U.K. lawPLACEBOMedical test control substanceOPIATEControlled substanceLSDSubstance associated with the C.I.A.'s controversial MK-ULTRA mind-control program