Assertive Community Treatment (ACT). OVERVIEW. Assertive Community Treatment (ACT) takes a "whole team" approach to treating serious mental illness.The NYC Health Department issues birth certificates for all people who are born in New York City (The Bronx, Brooklyn, Manhattan, Queens and Staten Island). Our language translation service provides access to interpreting services for communication when there is a language barrier. Over 200 languages are available. Our language translation service provides access to interpreting services for communication when there is a language barrier. Over 200 languages are available. Save the date for Suffolk's annual LIT Conference on April 7th, 2025!