Metropolitan Detention Center

A Metropolitan Detention Center (MDC) is a United States Federal government detention facility (prison) operated by the Federal Bureau of Prisons. There are MDCs throughout the United States.

An MDC, unlike a Federal Penitentiary, is designed to hold prisoners who have not yet been arraigned, have been denied bail, or are awaiting trial. MDCs also hold inmates on their way to their designated 'home' prison.

Convicted prisoners are transferred to one of a series of Federal Prisons, also run by the Bureau of Prisons.