Army · SSN history

900 Title not stated in source

Appendix I lists Army SSN 900 as deleted, with SSNs 183 and 901 as suggested substitutes. It does not establish a merger or an automatic reassignment to either code.

Codes named in this history

Other history records

These source identifiers have archive pages. Their availability does not establish current service use or retirement.

Codes without a directory match

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

Documented history

Title not stated in source

30 June 1945 is the publication date of Change 2, not an effective deletion date. The entry gives no date for the deletion of SSN 900.

  • The deleted specialty's title is not stated.
  • No conditions are given for choosing between the two suggested substitutes.
Source extraction notes

Appendix I lists deleted SSN 900 with suggested substitutes 183, 901. The table does not print the deleted specialty title, so the neutral title placeholder is used. The row-level deletion date is unstated. The citation dates Change 2 to 30 June 1945; that publication date is not an effective deletion date.

Source documents (1)

Reviewed September 23, 2026 against reference 1.

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