Maintains a working knowledge of and the ability to work with local and regional services and agencies for alcoholic and drug abuser, including self-help spiritually oriented programs for patients and families, education, information and referral resources, inpatient detoxification, rehabilitation and therapeutic community programs, residential facilities, vocational counseling and employment agencies. Assesses chemical use history, including type, quantity, frequency and pattern of use of licit, prescription, or illicit substances, including psychological, social, legal, medical, psychiatric, financial, vocational and educational consequences, and history of treatment efforts, including detoxification, rehabilitation, drug-free treatment, and chemotherapy programs.