[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-marines-9999":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"9999","marine_corps","MOS",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":17,"notes":24},"Title not stated in source","converted",null,"2006",[14],{"code":15,"liveCode":15,"name":16},"8999","Sergeant Major-First Sergeant",[18],{"title":19,"url":20,"accessedAt":21,"sourceDate":22,"locator":23},"MARADMIN 329/06, MOS Manual Changes and Conversions","https://web.archive.org/web/20200803112904id_/https://www.marines.mil/News/Messages/Messages-Display/Article/890514/mos-manual-changes-and-conversions/","2026-07-29","2006-07-20","MARADMIN 329/06, paragraph 1.B(1), enlisted block, lines 114-119","The cited source prints the MOS code but not its occupational title; no title was inferred. Enlisted MOS moved from reporting category 9000 to miscellaneous-requirements category 8000. The manual is effective 2006-05-15, but personnel/HRDP implementation is explicitly deferred, so effective_to is null. No row-specific effective date is printed; year-only precision reflects the 2006 manual transition."]