[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-air-force-530X0":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"530X0","air_force","AFSC",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":16,"notes":23},"Metal Worker","converted",null,"1976",[14],{"code":15,"liveCode":11,"name":11,"liveBranch":11},"531X4",[17],{"title":18,"url":19,"accessedAt":20,"sourceDate":21,"locator":22},"Corrosion Control, AFSC 427X1","https://archive.org/details/DTIC_ADA196797","2026-07-30","1988-07-01","Internet Archive full-text OCR around char offset 8,942; governing lineage context verified","Explicit created-from lineage. Legacy separately records 535X0 -> 531X4, creating a conflicting-origin/reused-code collision for parent review. Verified source wording: “Since its creation as a separate career ladder in 1976 with the establishment of AFSC 531X4 from AFSC 530X0, Metal Worker, the 427X1 specialty has had a fairly stable history.”"]