Marine Combat Instructor
May 15, 2006 was the manual's effective date, but no specific implementation date is given for this conversion. The year 2006 identifies the classification transition, not a confirmed date when MOS 8513 stopped being used.
Source extraction notes
The cited source prints the MOS code but not its occupational title; no title was inferred. Enlisted MOS moved to new occupational field 09, Training. The manual is effective 2006-05-15, but personnel/HRDP implementation is explicitly deferred, so effective_to is null. No row-specific effective date is printed; year-only precision reflects the 2006 manual transition.
Source documents (2)
Reviewed September 24, 2026 against references 1, 2 and 3.
- MARADMIN 329/06, MOS Manual Changes and Conversions
1. MARADMIN 329/06, paragraph 1.B(5), enlisted block, lines 152-154 · source dated July 20, 2006 · cited by the explanation
Open source document (opens in a new tab)3.MARADMIN 329/06, MOS Manual Changes and Conversions · event transcription · docs/legacy-data/usmc-mos-conversions.jsonl:104; MARADMIN 329/06, paragraph 1.B(5), enlisted block, lines 152-154 · cited by the explanation
Open source document (opens in a new tab) - MCO P1200.16, Military Occupational Specialties Manual, 18 Apr 2005 (title source)
2. Figure 3-37, alphabetical listing of enlisted MOSs, printed p. 3-521 / PDF p. 712, MOS 8513 title row · cited by the explanation
PDF page 712 (opens in a new tab)