Marine Corps · SSN history

858 Medical Laboratory Technician

Appendix B identifies SSN 858, Medical Laboratory Technician, under AR 615-26 of September 1942 and its supplements as deleted for Marine Corps use. Its notation "None" means the specialty did not exist in the Marine Corps; no June 1945 title or replacement specialty is listed.

Documented history

Medical Laboratory Technician

June 1945 is the manual's publication date, not an effective cancellation date. No effective date is given for SSN 858.

  • The manual required review of each affected individual's Qualification Card rather than assuming an automatic conversion.
Source extraction notes

Predecessor title from the AR 615-26 column: Medical Laboratory Technician. Suggested conversions/remarks: None. The table gives no row-level effective date. June 1945 is the manual publication date, not an effective 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.