Reference & AI

MCO 1200.15C W/ADMIN CH-1

Marine Corps

MOS SYSTEM MODIFICATION PROCESS

Reviewed by Guilherme Correia, active-duty U.S. Air Force

MCO 1200.15C W/ADMIN CH-1, "MOS SYSTEM MODIFICATION PROCESS", is a United States Marine Corps publication.

Published

Not dated on the index

OPR

—

Headquarters Marine Corps

Official document

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MCO 1200.15C W/ADMIN CH-1 — index record

NumberMCO 1200.15C W/ADMIN CH-1
TitleMOS SYSTEM MODIFICATION PROCESS
Published
Issued byHeadquarters Marine Corps
Status on the indexCurrent
Source indexMarine Corps Publications Electronic Library (MCPEL)
Index last readOctober 20, 2026

Copied from Marine Corps Publications Electronic Library (MCPEL) (index). The publication itself is the authority; this page does not summarize or interpret it. Verify the current edition on the index before acting.

Synopsis as published on the index

Modification to the MOS system is a dynamic process that affects the Human Resource Development Process (HRDP), i.e . Total Force Structure Process (TFSP), Manpower, and Training Development Processes. MOS system modification requires a clear understanding of the process to produce timely and coordinated staff actions which in turn prevent erroneous classifications and assignment of personnel and unsynchronized modifications to TIOs, and manpower and training plans. MOS system modification, force structure changes, and manpower and training management are calibrated annually. Enclosure (1) explains terms used in the MOS system modification process.

Quoted verbatim from the Marine Corps Publications Electronic Library (MCPEL) entry (source).

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REF: MCO 1200.15C W/ADMIN CH-1

Marine Corps Publications Electronic Library (MCPEL) — MCO 1200.15C W/ADMIN CH-1

This is an index record, not the publication. The official PDF is the authority; verify the current edition before acting.

Reviewed by Guilherme Correia · Military Toolkit editorial

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