MCO 5300.19 governs the Marine Corps enlisted production process from manpower planning through qualified Marines' unit assignment.
View MCO 5300.19 on armypubs.army.mil
It covers accession planning, recruiting, MOS classification, reclassification, training input, seat allocation, and student management. It requires coordinated plans, school seat requirements, classification procedures, and production tracking across Marine Corps commands.
An accession cohort is defined by the FY a Marine is shipped to recruit training (in most cases the Armed Forces Active Duty Base Date). (paragraph 1)
The major accessions plans are the Program Plan, the Classification Plan, and the TIP. (paragraph 1)
The reserve accessions requirement begins with identifying current and projected vacancies by geographic location, Reporting Unit Code (RUC) and Billet MOS. (paragraph 2)
The Recruit Distribution section (MMIB-1) is responsible for the initial MOS classification for all active component, entry-level, enlisted recruits in accordance with prerequisites established in reference (d). (paragraph 1)
MMIB-1 uses the Recruit Distribution Model (RDM) to register recruits into the next available “A” school seat, allowing a minimum of six weeks for leave following recruit training and the completion of Marine Combat Training (MCT). (paragraph 1)