A person is liable to a penalty where, owing to a lack of reasonable care (careless behaviour) or deliberate behaviour, they give the WRA a document which contains an inaccuracy that leads to:
Mae person yn agored i gosb pan fo’n rhoi dogfen i ACC sydd, oherwydd diffyg gofal rhesymol (ymddygiad diofal), neu ymddygiad bwriadol, yn cynnwys anghywirdebau sy’n arwain at unrhyw o'r canlynol: