Foreign Per Diem Rates
Maximum per diem rates for travel in foreign areas which apply to all U.S. Government contractors. Includes danger pay rates. http://www.state.gov
U.S. Per Diem Rates
Maximum per diem rates for travel in the Continental United States. Includes rates for 2000 and 2001, as well as a chart showing tax rates for each state http://www.policyworks.gov
Standard Regulations
Changes to the Standard Regulations are published in Section 920 http://www.state.gov
Allowance and Differential Rates
Section 920 of the Standardized Regulations transmittal memos are published biweekly. Transmittal memos 'A' also include changes to the Standard Regulations. http://www.state.gov