Substance use treatment; Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Outpatient; Residential/24-hour residential; Outpatient day treatment or partial hospitalization; Intensive outpatient treatment; Regular outpatient treatment; Long-term residential; Short-term residential; Does not use medication assisted treatment for alcohol use disorder; Does not treat opioid use disorders; Anger management; Cognitive behavioral therapy; Relapse prevention; Substance use disorder counseling; Telemedicine/telehealth therapy; Trauma-related counseling; Private for-profit organization; State department of health; The Joint Commission; Private health insurance; Cash or self-payment; Young adults; Comprehensive mental health assessment; Comprehensive substance use assessment; Complete medical history/physical exam; Screening for substance use; Screening for mental disorders; Aftercare/continuing care; Discharge Planning; Treatment for other addiction disorder; Substance use disorder education; Individual counseling; Group counseling; Family counseling; Vocational training or educational support (for example, high school coursework, GED preparation, etc.) ; Smoking not permitted; Adults; Young adults; Female; Male; Vaping permitted without restriction; Mental health services; Social skills development; Integrated primary care services; Suicide prevention services