What is a primary feature of the GPC program aimed at efficiency?

The primary feature of the GPC (Government Purchase Card) program aimed at efficiency is the expedited purchasing for small, low-value items. This feature allows government personnel to quickly procure necessary goods and services without the lengthy processes usually associated with traditional purchasing methods. The GPC program is designed to streamline acquisitions, making it easier for authorized users to obtain items that are essential for mission success while minimizing bureaucratic delays. This efficiency is particularly beneficial for small purchases, enabling prompt responses to immediate needs within various departments.

The other options, while they pertain to various aspects of procurement or regulatory requirements, do not directly target the core efficiency goal of the GPC program. Increased database storage relates to data management but does not enhance purchasing efficiency. Mandatory audits might ensure compliance but can slow down the process rather than facilitate it. Public access to purchase records serves transparency and accountability but does not impact the speed or simplicity of the purchasing process itself. Thus, the focus on expedited purchasing is what distinctly marks the GPC program's commitment to efficiency.