TAP 21 Addiction Counceling Competencies: The Knowledge .
NAADAC–The Association for Addiction Professionals Valley HealthCare System Morgantown, West Virginia Michael Shafer, Ph.D. Pacific Southwest ATTC Tucson, Arizona James L. Sorensen, Ph.D. San Francisco General Hospital University of California–San Francisco San Francisco, California Patricia L. Stilen, LCSW, CADAC Mid-America ATTC