The Harrison Bureau of Fire Prevention is made up of a full-time Fire Marshall and the Volunteer Chiefs from each Fire District. It provides fire inspections and public education for the entire Town of Harrison. The Bureau also includes two career firefighters who are New York State Code Enforcement Officers and do fire inspections in the Downtown District.
Harrison is served by five fire districts, manned mostly by volunteers and supplemented by career firefighters in the Downtown District only.
District #1, the West Harrison area covers 11-square-miles, and is entirely manned by volunteer firefighters.
District#2, the Downtown area, has 14 career firefighter and 70 volunteer firefighters.
District#3, a small section close to the Rye border, is served by the Rye City Fire Department under a contract with Harrison.
District#4, the Purchase area, is served by 50 volunteer firefighters.
District#5, the North Castle border, is served by the West Harrison Fire District #1.