The New York City Fire Department is the largest municipal fire department in the United States and the second largest in the world after the Tokyo Fire Department. The FDNY employs approximately 11,051 uniformed firefighters and 4,414 uniformed EMTs, paramedics, and fire inspectors. Its regulations are compiled in title 3 of the New York City Rules. The FDNY's motto is New York's Bravest for fire and New York's Best for EMS. The FDNY serves more than 8.5 million residents within a 302 square mile area.

The FDNY headquarters is located at 9 MetroTech Center in Downtown Brooklyn, and the FDNY Fire Academy is located on Randalls Island.

Like most fire departments of major cities in the United States, the New York City Fire Department is organized in a paramilitary fashion, and in many cases, echoes the structure of the police department. The department's executive staff is divided into two areas that include a civilian Fire Commissioner who serves as the head of the department and a Chief of Department who serves as the operational leader. The current Fire Commissioner is Daniel A. Nigro, who succeeded Salvatore J. Cassano in June 2014. The executive staff includes several civilian deputy commissioners who are responsible for the many administrative bureaus within the department, along with the Chief of Department, Chief of Fire Operations, Chief of EMS, Chief Fire Marshal, Chief of Training and other staff chiefs. Staff chiefs include the seven citywide tour commanders, the Chief of Fire Prevention, and the Chief of Safety.

According to wikipedia