Substance use treatment; Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Outpatient; 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; Motivational interviewing; Relapse prevention; Substance use disorder counseling; Telemedicine/telehealth therapy; Trauma-related counseling; Private non-profit organization; State Substance use treatment agency; Council on Accreditation (COA); Federal, or any government funding for substance use treatment programs; Medicare; Medicaid; Cash or self-payment; Sliding fee scale (fee is based on income and other factors); Comprehensive mental health assessment; Comprehensive substance use assessment; Screening for substance use; Screening for mental disorders; TB screening; Aftercare/continuing care; Discharge Planning; HIV or AIDS education, counseling, or support; Individual counseling; Group counseling; Family counseling; Marital/couples counseling; Smoking not permitted; Children/adolescents; Female; Male; Sign language services for the deaf and hard of hearing; Spanish; Case management service; Domestic violence services, including family or partner; Mental health services; Social skills development