Persons housed in secure correctional facilities. There are many different types of correctional facilities, operated by different government entities. Local jails are generally operated under the authority of a sheriff, police chief, or county or city administrator, and typically hold offenders for short periods ranging from a single day to a year. A small number of jails are privately operated. Prisons serve as long-term confinement facilities and are only run by the 50 state governments and the Federal Bureau of Prisons (BOP). Private correctional facilities also operate under contracts for a wide variety of local, state, and federal agencies. Other correctional facilities are operated by special jurisdictions, including the U.S. Armed Forces, U.S. territories, and federal agencies, such as U.S. Immigration and Customs Enforcement (ICE).