any such agency may maintain separately from such place or building in the Washington metropolitan area. (3) State The term State means each of the 50 States. (4) Washington metropolitan area The term Washington metropolitan area means the geographic area located within the boundaries of the following: (A) The District of Columbia. (B) Montgomery and Prince George’s Counties in the State of Maryland. (C) Arlington, Fairfax, Loudoun, and Prince William Counties and the City of Alexandria in the Commonwealth of Virginia.