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; Other contracted prescribing entity; Does not treat alcohol use disorder; Accepts clients using MAT but prescribed elsewhere; Medication for mental disorders; Substance use disorder counseling; Telemedicine/telehealth therapy; Local, county, or community government; State Substance use treatment agency; State mental health department; Federal, or any government funding for substance use treatment programs; Medicare; Medicaid; Cash or self-payment; State-financed health insurance plan other than Medicaid; Adult women; Pregnant/postpartum women; Adult men; Criminal justice (other than DUI/DWI)/Forensic clients; Comprehensive substance use assessment; Interim services for clients; Outreach to persons in the community; Drug and alcohol oral fluid testing; Drug or alcohol urine screening; Aftercare/continuing care; Discharge Planning; Housing services; Assistance with obtaining social services; Mentoring/peer support; Substance use disorder education; Smoking/vaping/tobacco cessation counseling; Individual counseling; Group counseling; Smoking permitted in designated area; Female; Male; Sign language services for the deaf and hard of hearing; Case management service; Mental health services; Transportation assistance