The General Services Administration establishes Per Diem Rates for the 48 continental United States and the District of Columbia. The rates, known as CONUS rates
, are normally established in October of each year. GSA also establishes maximum rates of reimbursement for use of personally owned vehicles (POV).
The Per Diem rates for non-foreign, non-contiguous U.S. areas
are established by the Department of Defense Per Diem, Travel and Transportation Allowance Committee (PDTATAC). PDTATAC establishes Per Diem rates for Alaska, Hawaii, Puerto Rico, American Samoa, Guam, Midway, the Northern Mariana Islands, the U.S. Virgin Islands, Wake Island and other non-foreign areas outside the continental United States. Updated information on non-foreign area per diems are published periodically in Civilian Personnel Per Diem Bulletins.
The Per Diem Committee also establishes maximum per diem rates for U.S. military bases.