Can GPC transactions be conducted over the phone?

GPC transactions can indeed be conducted over the phone, but specific conditions must be met for this to be permissible. The key factor is that cardholder procedures and vendor agreements must explicitly allow for such phone transactions. This ensures that both parties adhere to the necessary security protocols and internal controls that govern the use of the Governmentwide Commercial Purchase Card. By following these guidelines, the risks associated with phone transactions, such as unauthorized use or lack of documentation, are mitigated.

The other options do not capture the necessary context and restrictions involved in conducting transactions over the phone. Allowing phone transactions in all circumstances or only in person does not align with the regulated and secure nature of GPC transactions. Additionally, limiting phone transactions solely based on a monetary threshold fails to address the broader considerations of compliance with established procedures and vendor agreements.