Welsh Ministers are responsible for the strategic oversight of these services and are accountable to the Senedd for the decisions they take in exercising their powers.
Gweinidogion Cymru sy'n gyfrifol am oruchwylio'r gwasanaethau hyn mewn ffordd strategol, ac maent yn atebol i Senedd Cymru am y penderfyniadau a gymerant wrth arfer eu pwerau.