Assertive Community Treatment
An intensive, team-based outreach model that delivers comprehensive mental health services directly to individuals with severe mental illness in community settings.
Full Definition
Assertive Community Treatment (ACT) is a multidisciplinary, evidence-based service delivery model designed for individuals with serious mental illness who have not responded adequately to traditional outpatient care. Services are delivered in vivo—in homes, shelters, and community locations—rather than in clinic settings. The team typically includes psychiatrists, nurses, social workers, and peer specialists who collectively share a caseload and are available 24/7. ACT is distinguished from case management by its direct provision of services, not merely brokering of referrals. Editors should not conflate 'ACT team' (the shorthand) with 'ACT' used in Acceptance and Commitment Therapy contexts.
Usage
Usage note: Spell out in full on first use in clinical documents; 'ACT team' is acceptable on subsequent references. Do not abbreviate as 'AC Treatment.'
In Context
- "The client was transitioned from standard outpatient care to Assertive Community Treatment after three psychiatric hospitalizations within six months." — Clinical case summary
- "Assertive Community Treatment teams must maintain a staff-to-client ratio of no greater than 1:10 to meet fidelity standards." — Program evaluation report