Which action is not permitted for a GPC cardholder?

Transferring a Government Purchase Card (GPC) to another person is not permitted as it undermines the accountability and security measures put in place to prevent misuse of government resources. A GPC is issued to an individual and is intended for that person's transactions only. This ensures that each cardholder is responsible for their purchases, maintaining clear records for auditing and compliance purposes.

The other actions listed are essential components of proper GPC usage. Making authorized purchases is fundamental to the function of the card. Keeping receipts for transactions is critical for record-keeping and justifying expenses. Documenting purchases in a timely manner improves accuracy and helps in maintaining financial controls, ensuring that all transactions are appropriately tracked and accounted for. Thus, while all those actions are integral to the responsible use of a GPC, transferring the card disrupts the safeguards designed to protect government funds and prevent fraud.