Substance use treatment; Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Outpatient; Outpatient day treatment or partial hospitalization; Intensive outpatient treatment; Outpatient methadone/buprenorphine or naltrexone treatment; Psychiatric hospital; Buprenorphine used in Treatment; Naltrexone used in Treatment; No formal relationship with prescribing entity; Accepts clients using medication assisted treatment for alcohol use disorder but prescribed elsewhere; This facility administers/prescribes medication for alcohol use disorder; No formal relationship with prescribing entity; Buprenorphine detoxification; Buprenorphine maintenance; Prescribes buprenorphine; Prescribes naltrexone; Accepts clients using MAT but prescribed elsewhere; Acamprosate (Campral®); Disulfiram; Buprenorphine with naloxone; Naltrexone (oral); Naltrexone (extended-release, injectable); Clonidine; Medication for mental disorders; Nicotine replacement; Non-nicotine smoking/tobacco cessation; Cognitive behavioral therapy; Motivational interviewing; Substance use disorder counseling; 12-step facilitation; Private non-profit organization; State Substance use treatment agency; State mental health department; The Joint Commission; Medicare; Medicaid; Federal military insurance (e.g., TRICARE); Private health insurance; Cash or self-payment; Adolescents; Clients with co-occurring mental and substance use disorders; Comprehensive mental health assessment; Comprehensive substance use assessment; Outreach to persons in the community; Screening for tobacco use; Screening for substance use; Screening for mental disorders; Breathalyzer or blood alcohol testing; Drug and alcohol oral fluid testing; Drug or alcohol urine screening; Aftercare/continuing care; Discharge Planning; Naloxone and overdose education; Outcome follow-up after discharge; Self-help groups; Assistance with obtaining social services; Mentoring/peer support; Alcohol Detoxification; Benzodiazepines Detoxification; Cocaine Detoxification; Opioids detoxification; Substance use disorder education; Smoking/vaping/tobacco cessation counseling; Individual counseling; Group counseling; Family counseling; Smoking permitted in designated area; Children/adolescents; Female; Male; Sign language services for the deaf and hard of hearing; Vaping permitted in designated area; Mental health services; Transportation assistance; Suicide prevention services