In relation to all other data, processing is necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the data controller.
Mewn perthynas â’r holl ddata arall, mae prosesu yn angenrheidiol ar gyfer cyflawni tasg a wneir er budd y cyhoedd neu wrth arfer awdurdod swyddogol sy’n perthyn i’r rheolwr data.