The Complete MOS Library
Scroll below to learn about Military Occupational Specialities (MOS's)
The Marine Corps breaks each functional occupation into a parent occupational field, such as Logistics, Intelligence, Finance, Infantry, or Engineering.
Each occupational field has a two-digit identifier. Each specific job, or occupational specialty, comes with two more digits after the occupational field that identify the MOS.
Officer MOS's will have a zero in the last two digits, while enlisted MOS's will not.
30 - Supply Administration and Operations
31 - Distribution Management
33 - Food Service
34 - Financial Management
35 - Motor Transport
41 - Marine Corps Community Services
44 - Legal Support
45 - Communications Strategy & Operations (COMMSTRAT)
46 - Combat Camera
48 - Recruiting and Retention
55 - Music
57 - Chemical, Biological, Radiological, Nuclear (CBRN) Defense
58 - Military Police, Corrections, and Investigations
59 - Command and Control (C2) Electronics Maintenance)
60 - Aircraft Maintenance
61 - Aircraft Maintenance (Rotary Wing)
62 - Aircraft Maintenance (Fixed Wing)
63 - Organizational Avionics Maintenance
64 - Intermediate Avionics Maintenance
65 - Aviation Ordnance
66 - Aviation Logistics
68 - Meteorological and Oceanography
70 - Airfield Services
72 - Air Traffic Control & Warfare
73 - Unmanned Aircraft Operators
75 - Pilots & NFOs
8000 - Miscellaneous MOS's