An enquiry is completed when the WRA informs and notifies the claimant (by means of a ‘closure notice’) that the enquiry is complete and states the conclusions they have reached in the enquiry.
Bydd ymholiad wedi’i gwblhau pan fydd ACC yn rhoi gwybod i’r hawlydd (drwy ‘hysbysiad cau’) fod yr ymholiad wedi’i gwblhau ac yn datgan ei gasgliadau yng nghyswllt yr ymholiad.