Drugs that can be abused are regulated by the U.S. Drug Enforcement Administration (DEA) under provisions of the Controlled Substances Act (CSA), Title II of the Comprehensive Drug Abuse Prevention and Control Act of 1970, and the Controlled Substances Act of 1990. The legislation places all drugs into the following number of schedule categories:

The MAC (Master Addiction Counselor) is a voluntary national and international certification intended for professionals working within Substance Use Disorders/Addiction-related disciplines wishing to demonstrate their skills gained through supervised work experience and specific graduate course work. 

A MAC (Master Addiction Counselor) is competent in skills related to:
Human growth and development
Social and cultural foundations
Helping relationships
Group counseling
Career counseling
Assessment
Research and program evaluation, and 
Professional counseling.