Substance Abuse Counselor
The deletion belongs to the 2006 MOS manual transition, but no specific effective date for MOS 8538 is stated. The manual was effective May 15, 2006, while personnel implementation was explicitly deferred, so that date does not establish when the deletion took effect in personnel records.
Source extraction notes
The cited source prints the MOS code but not its occupational title; no title was inferred. Enlisted MOS explicitly listed as deleted with no named successor. Do not infer a replacement. 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(3), enlisted block, lines 140-143 · 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:98; MARADMIN 329/06, paragraph 1.B(3), enlisted block, lines 140-143 · 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. 3-522 / PDF p. 713, MOS 8538 title row · cited by the explanation
PDF page 713 (opens in a new tab)