What does the term "Per Diem" refer to in DTS?

The term "Per Diem" specifically refers to a daily allowance for travel expenses, which encompasses lodging, meals, and incidentals incurred while traveling for official government business. In the context of the Defense Travel System (DTS), Per Diem is calculated based on the location of travel and the duration of the trip, allowing service members and government employees to manage their daily expenses without needing to provide detailed receipts for each individual cost. This system simplifies the reimbursement process by standardizing the allowances based on established rates. Understanding this concept is crucial, as it helps travelers plan their budgets during official travel and ensures compliance with regulations governing travel reimbursements.