MCO 1200.18 — Military Occupational Specialties (mos) Program Order (short Title: Mos...

MCO 1200.18 governs the Marine Corps Occupational System, including MOS organization, qualifications, prerequisites, and required training.

Search MCO 1200.18

  • Publication number: MCO 1200.18
  • Title: MILITARY OCCUPATIONAL SPECIALTIES (MOS) PROGRAM ORDER (SHORT TITLE: MOS...
  • Date: 8 Dec 2014
  • Proponent: 01000 Military Personnel
  • Status: Current

View MCO 1200.18 on armypubs.army.mil


MCO 1200.18 establishes how MOSs identify billet requirements, individual Marine qualifications, and necessary training. It also requires annual updates to the Occupational System and an annual MOS Manual.

Applies to: This Order is applicable to the Marine Corps Total Force.

Topics covered

  • Military Occupational Specialties
  • Occupational System
  • MOS qualifications
  • Billet requirements
  • Individual skill and training requirements
  • Officer/Enlisted Conversion Guidance

Questions and answers

How do MOSs support Marine Corps manpower requirements?

MOSs identify billet requirements leading to a matching inventory of Marines enabling the Marine Corps to man the force and carry out assigned missions. (paragraph 4)

What does the HRDP organize around MOSs?

The HRDP is designed around MOSs to organize recruit, classify, train, assign, and manage the force that meets mission based manpower requirements. (paragraph 4)

Who must adhere to the policies and updated MOS requirements?

Deputy Commandants, Commanding Officers of schools, and all personnel associated with the Marine Corps Occupational System shall ensure adherence to the policies in this Order and the annually updated requirements and prerequisites in reference (h). (paragraph 4)

Who publishes the annual MOS Manual?

Commanding General, Training and Education Command, shall publish an annual MOS Manual. (paragraph 4)

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