Mid-Atlantic Region (Delaware, Pennsylvania, southern New Jersey, West Virginia, Maryland, excluding Montgomery and Prince George's Counties, Virginia, excluding the cities of Alexandria and Falls Church, and Arlington, Fairfax, Loudoun, and Prince William counties, and outside the Continental United States, in Europe, Africa, and the Middle East)
Greater Southwest Region (Arkansas, Louisiana, New Mexico, Oklahoma, and Texas; and also provides services to federal employees located in Canada, and Central and South America)
Pacific Rim Region (Arizona, California, Hawaii, Nevada, as well as overseas in American Samoa, Diego Garcia and the Indian Ocean, Guam, Japan, Korea and Saipan)
National Capital Region (Washington, DC, Maryland, Montgomery and Prince George's counties, Virginia, (the cities of Alexandria and Falls Church, and Arlington, Fairfax, Loudoun, and Prince William Counties)