Marine Corps · SSN history

489 Patrolman, Pipeline

Appendix B identifies SSN 489 as “Patrolman, Pipeline” under AR 615-26, September 1942 and supplements, and suggests SSNs 485 or 522 as alternatives. These were not automatic conversions: each individual's Qualification Card had to be reviewed against the job specifications before selecting a replacement.

Codes named in this history

Codes without a directory match

  • 485 stated by the source. No directory or archive record matches.
  • 522 stated by the source. No directory or archive record matches.

Documented history

Patrolman, Pipeline

June 1945 is the manual's publication date. The entry gives no effective date for a change to SSN 489.

  • The June 1945 Present Title column is blank; the entry does not establish a fixed split into two successor specialties.
Source extraction notes

Predecessor title from the AR 615-26 column: Patrolman, Pipeline. Suggested conversions/remarks: 485, 522. 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.