Air Force · AFSC history
Renamed to 531X4, dated May 1, 1975 by the source.
Historical steps
The source names a code the branch later retired, or whose reviewed record is historical. Its story continues on that code's own page.
Listed as becoming 427X1. No directory or archive record matches.
Corrosion Control
Source explicitly says redesignated; later OCR is too damaged to ledger the subsequent code change.
1. Internet Archive full-text OCR lines 316-351 (printed p. 2); adjudicated excerpt in audit · source dated November 1, 1979
Printed page 2 (archive page 8) (opens in a new tab)Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.