Substance use treatment; Outpatient; Intensive outpatient treatment; Regular outpatient treatment; No formal relationship with prescribing entity; 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; Anger management; Brief intervention; Cognitive behavioral therapy; Contingency management/motivational incentives; Motivational interviewing; Matrix Model; Relapse prevention; Substance use disorder counseling; Trauma-related counseling; Telemedicine/telehealth therapy; Private for-profit organization; State Substance use treatment agency; Medicaid; Private health insurance; Cash or self-payment; Adolescents; Young adults; Adult women; Adult men; Seniors or older adults; Veterans; Active duty military; Clients with co-occurring mental and substance use disorders; Comprehensive mental health assessment; Comprehensive substance use assessment; Screening for substance use; Screening for mental disorders; Breathalyzer or blood alcohol testing; Aftercare/continuing care; Discharge Planning; Outcome follow-up after discharge; Recovery coach; Substance use disorder education; Smoking permitted in designated area; Children/adolescents; Seniors; Female; Male; Vaping not permitted