For GPC transactions, which of the following must be included in the supporting documentation?

The inclusion of proof of delivery in supporting documentation for Government Purchase Card (GPC) transactions is important because it serves as a verification step that ensures the goods or services were actually received as ordered. This documentation protects the government against fraud and misuse of funds, providing a clear record of what was delivered, when it was delivered, and that it matches what was purchased.

Proof of delivery acts as an essential safeguard in the procurement process, demonstrating compliance with regulations and ensuring that the government is receiving the value for which it is paying. Without this documentation, there could be disputes regarding whether the items were received, which can lead to issues during audits or financial reviews.

While detailed invoices, receipts from vendors, or personal statements might provide additional information regarding the transaction, proof of delivery specifically aligns with the requirement to substantiate that the purchase was completed satisfactorily.