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Context: Rhaid i’r prif gontractwr (neu'r unig gontractwr) greu a chynnal dogfen at ddibenion cofnodi gwybodaeth mewn cysylltiad â newidiadau i’r prosiect (“lòg rheoli newid”).
Notes: Yng nghyd-destun Rheoliadau Adeiladu (Gweithdrefnau Adeiladau Risg Uwch) (Cymru) 2025. Seiliwyd y frawddeg gyd-destunol ar destun o'r Rheoliadau hynny.
