Air Force · AFSC history

909X1 Cardiopulmonary Laboratory

The Cardiopulmonary Laboratory career ladder was renumbered from AFSC 909X1 to 916X0. This was a numeric designation change, not a change in the career ladder’s name.

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Codes named in this history

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.

916X0Cardiopulmonary Laboratory · historical code
Further history: 902X1 Cardiopulmonary Laboratory. Archive availability does not establish retirement or current use.

Documented history

Cardiopulmonary Laboratory

The renumbering took effect on 1 July 1968.

Source documents (1)

Reviewed September 23, 2026 against reference 1.

Cardiopulmonary Laboratory Career Ladder, AFSCs 90251 and 90271.
1. Internet Archive full-text OCR lines 495-530; adjudicated excerpt in audit · source dated December 1, 1983 · cited by the explanation
Printed page 11 (archive page 8) (opens in a new tab)
2.Quoted official passage · 909X1 · docs/legacy-data/usaf-osr-lineage-audit.md:294; Internet Archive full-text OCR lines 495-530; adjudicated excerpt in audit
Printed page 11 (archive page 8) (opens in a new tab)
3.Cardiopulmonary Laboratory Career Ladder, AFSCs 90251 and 90271. · event transcription · docs/legacy-data/usaf-osr-lineage.jsonl:258; Internet Archive full-text OCR lines 495-530; adjudicated excerpt in audit
Printed page 11 (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.