Per Diem Rates 2024 Dos. Per diem rates are the amounts each traveler is allowed to spend for lodging, meals, and incidentals (m&ie) while on official travel. Department of state diplomacy in action :

Foreign per diem rates in u.s. Calculation of travel per diem rates within the federal government is a shared responsibility of the general services administration (gsa), the department of state (dos), and the defense.