What constitutes adequate travel documentation?

• A. Receipts and a general travel authorization.
• B. A simple itinerary with no receipts.
• C. Itemized receipts, travel purpose, attendees, per diem calculations, and approval.
• D. A copy of the travel policy only.

Answer: (C)

Adequate travel documentation requires a complete, auditable record that ties every expense to a legitimate business purpose and shows proper authorization. The best answer includes itemized receipts for each expense, the travel purpose, attendees if any, the per diem calculations used, and formal approval. This combination ensures you can verify exactly what was charged, why the trip was necessary, who attended, how daily allowances were determined, and that someone with authority approved the travel and its costs before reimbursement or reporting. Without these elements, the documentation lacks the necessary detail to substantiate the expenses. A mere receipts bundle with a general authorization misses the explicit business purpose and per diem calculations; an itinerary without receipts provides no cost support; and a stand-alone travel policy copy does not reflect actual expenditures or approvals.