[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-air-force-912X4":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"912X4","air_force","AFSC",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":16,"notes":23},"Allergy/Immunology","converted",null,"1981",[14],{"code":15,"liveCode":11,"name":11},"902X0A",[17],{"title":18,"url":19,"accessedAt":20,"sourceDate":21,"locator":22},"Medical Service Career Ladders AFSC 902X0/A/B/C.","https://archive.org/details/DTIC_ADA171660","2026-07-30","1986-06-01","Internet Archive full-text OCR lines 416-451; adjudicated excerpt in audit","Source states the A-shred was created from 912X4 and then explicitly codes it 902X0A."]