Substance use treatment; Outpatient; Intensive outpatient treatment; Regular outpatient treatment; No formal relationship with prescribing entity; Does not use medication assisted treatment for alcohol use disorder; Accepts clients using medication assisted treatment for alcohol use disorder but prescribed elsewhere; No formal relationship with prescribing entity; Accepts clients using MAT but prescribed elsewhere; Brief intervention; Cognitive behavioral therapy; Contingency management/motivational incentives; Motivational interviewing; Relapse prevention; Substance use disorder counseling; 12-step facilitation; Private for-profit organization; State Substance use treatment agency; State mental health department; Cash or self-payment; Comprehensive substance use assessment; Screening for substance use; Professional interventionist/educational consultant; Aftercare/continuing care; Discharge Planning; Self-help groups; Substance use disorder education; Individual counseling; Group counseling; Smoking permitted without restriction; Female; Male; Specially designed program for DUI/DWI clients