Which of the following is typically required to support a travel claim?

• A. Official orders and travel authorization only
• B. Vouchers only
• C. Receipts only
• D. Official orders, travel authorization, vouchers, and receipts or per diem documentation

Answer: (D)

A travel claim must have a complete trail showing authorization, actual travel, and substantiation of costs. Official orders establish the trip’s authority, dates, and purpose, while travel authorization confirms the specific trip is approved and outlines allowed allowances. A voucher ties the trip to the reimbursement request, and receipts substantiate the actual expenses; or, where allowed, per diem documentation justifies daily allowances in lieu of itemized receipts. Together, these elements ensure the claim is auditable and compliant with travel regulations. Missing any piece—authorization, proof the travel occurred, the reimbursement link, or cost substantiation—can prevent payment.