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Marine Corps · SSN history

566 Noncommissioned Officer

For SSN 566, Appendix B gives the June 1944 title “Noncommissioned Officer” and the instruction “See also 545, 565,” not an automatic split into those specialties. It lists “Property NCO” as the June 1945 title but does not establish a cancellation, rename, or fixed replacement for the earlier classification.

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Documented history

Noncommissioned Officer

June 1945 is the manual’s publication month, not an established conversion or end date for this classification. No calendar effective date is given for this entry.

  • The asterisked reference to 545 and 565 applies to the earlier titles “Noncommissioned Officer” and “Duty NCO,” not to the unmarked June 1945 title “Property NCO.”
  • The suggested alternatives require individual qualification review against the manual’s job specifications.
Source extraction notes

Predecessor title from the June 1944 tentative-manual column: Noncommissioned Officer. Suggested conversions/remarks, as printed: *See also 545, 565. Asterisks bind the suggestions to the correspondingly marked earlier title, not to an unmarked present-title meaning. The Present Title column is the manual's June 1945 meaning: Property NCO. It is not a present-day MOS equivalence. This is a cross-reference or instruction to review the job specification, not an explicit fixed replacement or proof of cancellation. The table gives no row-level calendar effective date. June 1945 is the manual publication date, not an inferred individual conversion date.

Source documents (1)

Reviewed September 24, 2026 against references 3 and 4.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.