Download OPNAVINST 4790.4D
SHIPS’ MAINTENANCE AND MATERIAL MANAGEMENT (3-M) SYSTEM POLICY
OPNAVINST 4790.4D

Subj: SHIPS’ MAINTENANCE AND MATERIAL MANAGEMENT (3-M) SYSTEM
POLICY

1. Purpose To establish policy and assign responsibilities for the Ships' 3-M System in
accordance with references (a) and (b). This instruction is a complete revision and should
be reviewed in its entirety.

3. Background The previous Ships’ 3-M System Manual, OPNAVINST 4790.4C, included
both policy and implementation instructions. This document only provides the current Navy
policy. Reference (c) provides implementation guidance for ships’ maintenance and
material management.

Download OPNAVINST 4790.4D