Military Information Support Operations (MISO) Non-Commissioned Officer (FMOS)
1 October 2018 was the scheduled active-duty-component batch conversion date in the Marine Corps Total Force System (MCTFS), not a universal individual qualification or retraining date.
- Reserve retraining for PSMRP, Active Reserve and SMCR was required as needed for conversion, subject to available funds.
- Individual Mobilization Augmentees, Individual Ready Reservists and Standby Reservists required appropriate service record book entries using the headquarters conversion action as authority.
- Formal schools were to continue awarding current MOSs until a MARADMIN directed implementation.
- The grade-range change did not direct individual promotions or demotions; the specific description and requirement revisions are not detailed here.
Source extraction notes
Source new title: Military Information Support Operations (MISO) Marine (PMOS). Figure 4-1 remarks: 2, 4, 7, 8. Encoded as renamed because the allowed output vocabulary has no status-change value and the source also changes the title/status of the same code. Paragraph 4001.1b schedules the active duty component MCTFS batch for 1 October 2018. Paragraph 4001.6 separately covers Reserve retraining, subject to available funds for the specified retraining groups, and record updates for Individual Mobilization Augmentees, Individual Ready Reservists and Standby Reservists. Under paragraph 4002.3, formal schools keep awarding current MOSs until a MARADMIN directs implementation. The batch date is not a documented universal individual qualification or retraining date. The conversion table changes the classification's grade range from Cpl-GySgt to Cpl-MGySgt. These ranges are not a direction to promote or demote individual Marines.
Source documents (1)
Reviewed September 24, 2026 against references 1, 3, 4 and 5.
- NAVMC 1200.1D, FY19 Military Occupational Specialty Manual, Figure 4-1
1. Figure 4-1, printed p. 4-4, PDF p. 796, PRESENT MOS 0521 · source dated 2018 · cited by the explanation
PDF page 796 (opens in a new tab)2.NAVMC 1200.1D, FY19 Military Occupational Specialty Manual, Figure 4-1 · event transcription · docs/legacy-data/usmc-mos-conversions.jsonl:145; Figure 4-1, printed p. 4-4, PDF p. 796, PRESENT MOS 0521
PDF page 796 (opens in a new tab)3.NAVMC 1200.1D: FY19 enlisted conversion table legend · Figure 4-1 note, printed p. 4-14 / PDF p. 806 · cited by the explanation
PDF page 806 (opens in a new tab)4.NAVMC 1200.1D: FY19 implementation conditions · Paragraphs 4001.1b, 4001.6 and 4002, printed pages 4-1 and 4-2 / PDF pages 793 and 794 · cited by the explanation
PDF page 793 (opens in a new tab)PDF page 794 (opens in a new tab)5.NAVMC 1200.1D: 0521 present and new grade ranges · Figure 4-1, MOS 0521; cached conversion-chapter text lines 199-203 · cited by the explanation
PDF page 796 (opens in a new tab)