The New York City Department of Correction (NYCDOC) is the branch of the municipal government of New York City responsible for the custody, control, and care of New York City's imprisoned population, housing the majority of them on Rikers Island. It employs 8,949 uniformed officers and 2,027 civilian staff, has 543 vehicles, and processes over 100,000 new inmates every year, retaining a population of inmates of between 3,000 and 6,000. Its nickname is New York's Boldest. Its regulations are compiled in title 39 of the New York City Rules. Previously located in Manhattan, the Department of Correction headquarters is now located in the Bulova building in East Elmhurst, Queens, close to Rikers Island. The agency is headed by the Correction Commissioner, who is chosen and appointed by the Mayor of New York City.