[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-navy-MM(CBE)":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"MM(CBE)","navy","RATING",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":19,"notes":31},"Machinist's Mate (CB) (Equipment Operators)","split",null,"1948",[14,16],{"code":15,"liveCode":11,"name":11},"CD",{"code":17,"liveCode":17,"name":18},"CM","Construction Mechanic",[20,26],{"title":21,"url":22,"accessedAt":23,"sourceDate":24,"locator":25},"Charles A. Malin/Bureau of Naval Personnel, Compilation of Enlisted Ratings and Apprenticeships, U.S. Navy, 1775 to 1969 (rev. Dec. 1969)","https://web.archive.org/web/20240704193222id_/https://www.history.navy.mil/research/library/online-reading-room/title-list-alphabetically/c/enlisted-ratings-in-u-s-navy-1775-1969.html","2026-07-30","1969-12","#anchord, Driver entry; #anchorm, Mechanic entry; reproduced on archived Ohio PDF p. 7, 10",{"title":27,"url":28,"accessedAt":23,"sourceDate":29,"locator":30},"Charles A. Malin/Bureau of Naval Personnel, Abbreviations Used for Navy Enlisted Ratings (1970)","https://web.archive.org/web/20210825164342id_/https://www.history.navy.mil/research/library/online-reading-room/title-list-alphabetically/a/abbreviations-used-for-navy-enlisted-ratings.html","1970","alphabetic abbreviation list, MM(CBE), CD, CM entries","Malin/BUPERS source assertion: Established 1948 from the rating of Machinist's Mate (CB) (Equipment Operators). | Established 1948 from the ratings of Machinist's Mate (CB) (Equipment Operators) and Motor Machinist's Mate. Normalized as split/multi-destination. Reconciles 2 reciprocal, grade-specific, or repeated source assertions for the same predecessor/date. One or more historical long-title variants were normalized to a reviewed companion-list abbreviation by similarity match; the intermediate ledger records the method and the audit lists the source anomalies."]