Drug Abuse Office and Treatment Act Amendments of 1975 : hearings before the Subcommittee on Health and the Environment of the Committee on Interstate and Foreign Commerce, House of Representatives, Ninety-fourth Congress, first session on H.R. 7547, a bill to amend the Drug Abuse Office and Treatment Act of 1972 and for other purposes and H.R. 4819, a bill to amend the Public Health Service Act, the Comprehensive Alcohol Abuse and Alcoholism Prevention, Treatment, and Rehabilitation Act of 1970, the Drug Abuse Office and Treatment Act of 1972, and the Social Security Act, to revise and extend programs of health services, and for other purposes, June 10 and 11, 1975.