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; Regular outpatient treatment; Long-term residential; Does not treat alcohol use disorder; Does not treat opioid use disorders; Clonidine; Medication for mental disorders; Anger management; Cognitive behavioral therapy; Trauma-related counseling; Telemedicine/telehealth therapy; Private for-profit organization; State mental health department; Commission on Accreditation of Rehabilitation Facilities (CARF); Medicaid; Adolescents; Young adults; Lesbian, gay, bisexual, transgender, or queer/questioning (LGBTQ); Clients who have experienced sexual abuse; Clients who have experienced intimate partner violence, domestic violence; Clients who have experienced trauma; Comprehensive mental health assessment; Comprehensive substance use assessment; Complete medical history/physical exam; Screening for tobacco use; Screening for substance use; Screening for mental disorders; Professional interventionist/educational consultant; Aftercare/continuing care; Discharge Planning; Outcome follow-up after discharge; Self-help groups; Housing services; Assistance with obtaining social services; Recovery coach; Mentoring/peer support; Employment counseling or training; Treatment for other addiction disorder; HIV or AIDS education, counseling, or support; Hepatitis education, counseling, or support; Health education services other than HIV/AIDS or hepatitis; Substance use disorder education; Smoking/vaping/tobacco cessation counseling; Individual counseling; Group counseling; Family counseling; Vocational training or educational support (for example, high school coursework, GED preparation, etc.) ; Smoking not permitted; Children/adolescents; Male; Vaping not permitted; Acupuncture; Residential beds for clients’ children; Case management service; Child care for clients’ children; Domestic violence services, including family or partner; Mental health services; Social skills development; Transportation assistance; Integrated primary care services; Suicide prevention services