National Statistics status can be removed at any point when the highest standards are not maintained, and reinstated when standards are restored.
Gall statws Ystadegau Gwladol gael ei ddiddymu ar unrhyw bryd os nad ydynt yn glynu at y safonau uchaf, a gellir adennill y dyfarniad pan fo’r safonau yn cael eu hadfer.