What system does the supply custodian use to order medical supplies?

The Defense Medical Logistics Standard Support (DMLSS) is the correct choice for ordering medical supplies due to its comprehensive capabilities in managing and supporting medical logistics within the military healthcare system. DMLSS integrates various logistics functions, including inventory management, order processing, and supply chain oversight, allowing supply custodians to efficiently acquire necessary medical items.

DMLSS is specifically designed to meet the needs of the Department of Defense, facilitating the requisition process for a wide range of medical supplies and ensuring that healthcare providers have the resources they need. Its robust system helps streamline operations, reduce errors, and enhance overall mission readiness.

The other systems mentioned may play relevant roles in logistics but do not primarily focus on medical supply orders in the same way DMLSS does. Thus, DMLSS stands out as the system specifically tailored for the ordering and management of medical supplies within military operations.