Which system is used by authorized personnel to request ammunition?

The correct answer is based on the fact that the standard system utilized for requesting ammunition by authorized personnel is the Training Ammunition Management Information System, commonly known as TAMIS. This system provides a framework for tracking, management, and accountability of ammunition throughout its lifecycle, making it essential for units to accurately request and manage their ammunition needs. It enhances the efficiency of ammunition supply processes and ensures that requests are handled systematically.

Other options, while related to logistics in a broader sense, do not specifically serve the purpose of requesting ammunition. For instance, AMMO 64 is related to Class V procedures but is not primarily the system used to make requests. AAFES, or the Army and Air Force Exchange Service, pertains to the retail aspect for soldiers and does not handle ammunition requests. The Logistics Support System is more general and not specialized for ammunition management.