Which publication outlines policies for supporting or performing ordnance maintenance?

The publication that outlines policies for supporting or performing ordnance maintenance is OPNAV M-8000.16. This instruction provides detailed guidelines and policies for the management and maintenance of ordnance systems, ensuring safety and effectiveness in handling munitions. It covers areas such as maintenance procedures, training, and safety protocols, which are critical for personnel involved in ordnance maintenance.

The other publications listed serve different purposes and are not specifically focused on ordnance maintenance. For example, OPNAV P-1000.12 pertains to the policies for aviation ordnance and related activities, but it does not detail the comprehensive maintenance guidelines that OPNAV M-8000.16 provides. NAVSEA 9000.1 is related to Navy shipbuilding and ship repair programs, while COMNAVINST 4790.2 focuses on the maintenance of aviation systems but does not exclusively address ordnance maintenance. Each of these publications has its designated focus, making OPNAV M-8000.16 the most relevant choice for ordnance maintenance policies.