The FDNY expanded its CBRNE response capabilities. Units that operated under the (pre-merger) NYC EMS Special Operations Division and new members were reorganized into the HAZTAC Battalion.

 A select group of FDNY EMS (ALS & BLS) units are known as Hazardous Material Tactical Units (Haz-Tac Ambulances) whose members are trained to the level of Hazardous Materials Technician which allows them to provide emergency medical care and decontamination in a hazardous environment, in addition to their normal 911 duties.