What is prohibited when using the GPC for vendor payments?

The prohibition related to using the Government Purchase Card (GPC) for vendor payments primarily revolves around ensuring compliance with established spending limits tied to the micro-purchase threshold. This threshold is a set monetary limit below which federal purchasing does not require formal competition or numerous procurement regulations. When a payment exceeds this threshold, it necessitates appropriate justification and often requires additional authorization or adherence to more stringent procurement processes.

Choosing to make payments for items exceeding the micro-purchase threshold without justification violates these procedures aimed at maintaining oversight and accountability in federal spending. Thus, justifying such payments is crucial for regulatory compliance and helps prevent misuse of the GPC.

The other options either deal with permissible use within the established limits or do not completely align with specific prohibitions outlined in GPC training and guidelines. For example, making payments for items below the micro-purchase threshold is typically allowed, while rented equipment and fees or subscriptions may have specific guidelines governing their procurement but do not inherently violate the GPC usage without further context.