Which instruction outlines the ships 3-M manual?

The instruction that outlines the ship's 3-M manual is OPNAVINST 4790.4. This instruction serves as the primary guide for the maintenance and material management (3-M) system in the Navy. It establishes the policies and procedures for managing maintenance and the material condition of a ship, detailing the roles of personnel involved in the 3-M program. This framework helps ensure operational readiness and sustainability by providing systematic procedures for maintenance planning, execution, and reporting.

The other options are related to different aspects of Navy operations and logistics. For example, OPNAVINST 3100.7 pertains to the Navy's operational readiness training, NAVPERS 15555 is focused on personnel matters, and OPNAVINST 4001.5 addresses logistics support, none of which specifically outline the 3-M manual. This clarity in the role of OPNAVINST 4790.4 is crucial for boatswain's mates and other personnel engaged in ship maintenance activities.