Authorized personnel use which system to request ammunition for their unit?

The correct choice indicates that authorized personnel use the TAMIS (The Army's Ammunition Management Information System) to request ammunition for their unit. TAMIS is a vital tool within the Army's logistics framework, designed to streamline and enhance the efficiency of ammunition management. It serves as the primary system through which military units submit their ammunition requests, tracking the status of these requests, and ensuring accountability within the supply chain.

TAMIS integrates various functionalities that allow for real-time updates and visibility of ammunition inventory levels, needs assessments, and ordering processes, fostering a proactive approach to ammunition management. By utilizing TAMIS, personnel can ensure that they have the necessary resources to meet training and operational requirements, ultimately contributing to readiness and mission success.