What is the role of the Maintenance Material Control Officer (MMCO) within the Supply Department?

• A. The MMCO is responsible for managing maintenance-related supplies and ensuring that repair parts are available to support maintenance operations effectively.
• B. The MMCO handles medical supply chain.
• C. The MMCO manages dining services inventory.
• D. The MMCO administers the ship's communications.

Answer: (B)

Maintenance material control centers on ensuring the right maintenance-related supplies and repair parts are available when maintenance needs them. The MMCO oversees the flow of parts that technicians and ships’ maintenance teams rely on to keep systems—engines, hydraulics, electrical, weapons, and other equipment—operational. This means monitoring stock levels, initiating replenishment before runs run dry, coordinating with supply sources to obtain items not on hand, and expediting critical parts to minimize downtime. The MMCO also handles how repairables and consumables are issued, tracked, returned, or cannibalized as part of maintenance planning, and maintains the documentation and controls that keep inventory accurate and aligned with work orders and preventive maintenance schedules. In short, the MMCO ensures maintenance actions aren’t stalled by lack of parts.

Medical supply chain is managed by medical logistics, while dining services inventory and ship communications are handled by their respective departments, not the MMCO.