Drill Instructor
The manual took effect on May 15, 2006, but personnel-system implementation was deferred, with no specific implementation date given for this conversion. July 20, 2006 is the announcement's publication date, not an established conversion date.
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:103; 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. 3-519 / PDF p. 710, MOS 8511 title row · cited by the explanation
PDF page 710 (opens in a new tab)