MOS codes

Marine Corps Specialties

Browse Marine Corps MOS codes, then search by code or title.

Looking for a retired code? Search legacy codes

322 primary specialties in 8 categories

Aviation

·112

Combat & Infantry

·37

Communications

·14

Engineering

·20

Intelligence

·17

IT & Cyber

·27

Logistics

·33

Support

·62

Frequently asked questions

How many Marine Corps MOS codes are there?

This directory lists 322 Marine Corps MOS codes across 8 career areas. Being listed here does not establish current service use. Codes confirmed historical are kept out of this list and stay in the legacy archive with links to their successors.

What is a Marine Corps MOS?

The Marine Corps assigns every job a four digit MOS, like 0311 for Rifleman. The first two digits identify the occupational field, such as 03 for Infantry, and the full code identifies the specialty within that field.

Where does this Marine Corps MOS data come from?

Codes and titles follow the Marine Corps MOS Manual and are cross-checked against USMC COOL, the Marine Corps credentialing program.