Assertive Community Treatment team
Also written as: ACT — Assertive Community Treatment
A multidisciplinary, community-based clinical team that provides intensive, flexible, and around-the-clock mental health services directly to individuals with serious mental illness in natural settings.
Full Definition
An Assertive Community Treatment (ACT) team typically includes psychiatrists, nurses, social workers, substance use counsellors, vocational specialists, and peer support workers who share a single caseload and deliver services wherever the client lives, works, or spends time. The model is distinct from standard case management because the team—not a single case manager—assumes collective responsibility for the client's care. Editors must not conflate 'ACT team' with 'PACT' (Program of Assertive Community Treatment), which is a branded variant of the same model. When 'ACT' appears as a standalone abbreviation in a document, editors should confirm it refers to the clinical team rather than to the Americans with Disabilities Act or another 'ACT' entity.
Usage
Usage note: Lowercase 'team' unless part of a proper programme name. On first reference, spell out in full; thereafter 'ACT team' is acceptable. Do not use 'ACT' alone if context includes references to other organisations or laws sharing the acronym.
In Context
- "Members of the Assertive Community Treatment team met daily to review the shared caseload and coordinate same-day responses to crises." — Programme evaluation report
- "Refer to the team throughout as 'the ACT team' (not 'the ACT Team' or 'the act team') after the first full reference." — Editorial style note within a clinical handbook