Substance use treatment; Outpatient; Intensive outpatient treatment; Regular outpatient treatment; General Hospital (including VA hospital); Naltrexone used in Treatment; Does not use medication assisted treatment for alcohol use disorder; Does not use MAT for opioid use disorders; Naltrexone (oral); Naltrexone (extended-release, injectable); Brief intervention; Cognitive behavioral therapy; Contingency management/motivational incentives; Motivational interviewing; Relapse prevention; Substance use disorder counseling; Trauma-related counseling; 12-step facilitation; Private non-profit organization; State Substance use treatment agency; State mental health department; State department of health; Hospital licensing authority; The Joint Commission; Medicaid; Federal military insurance (e.g., TRICARE); Private health insurance; Cash or self-payment; Comprehensive substance use assessment; Interim services for clients; Outreach to persons in the community; Screening for substance use; Breathalyzer or blood alcohol testing; Drug or alcohol urine screening; Aftercare/continuing care; Discharge Planning; Self-help groups; Substance use disorder education; Individual counseling; Group counseling; Family counseling; Marital/couples counseling; Smoking not permitted; Children/adolescents; Female; Male; Specially designed program for DUI/DWI clients; Vaping not permitted; Case management service; Mental health services