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Explanation: Die amerikanische Regierung nennt das "per diem rate".
Establishing Per Diem Rates: Maximum rates of per diem allowances for travel in foreign areas are established by the Secretary of State and apply to all U.S. Government employees and contractors. For regulations pertaining to these rates, see the Federal Travel Regulations, Chapter 301-7, as established by the General Services Administration and implementing regulations established by Federal Agencies, (Foreign Affairs Manual - See 6 FAM 150; Defense Department Agencies - See Chapter 4 of the JFTR, Vol 1, for Members of the Uniformed Services and JTR, Vol 2, for Civilians.)
For domestic and non-contiguous U.S. per diem rates, please see :
General Services Administration: Domestic Per Diem Rates (CONUS)
Department of Defense: Non-contiguous U.S. Rates