Interior Communications (IC) A School Test 3 Practice

Maintenance Requirement Cards are the standard tool in the Navy’s preventive maintenance system, outlining what maintenance must be done, when it’s due, and the actions required. The official form used to capture and reference this information is OPNAV 4790/85, which is why this document number is associated with Maintenance Requirement Cards. The other numbers in the 4790 series serve different maintenance records or procedures, so they don’t represent the MRC itself. In practice, technicians consult the 4790/85 card to plan, execute, and document scheduled maintenance for a given item, ensuring consistency and compliance across units.