For Welsh and cross-border Welsh public bodies, specific duties have been finalised by the Welsh Government and came into force on 6 April 2011.
Ar gyfer cyrff cyhoeddus Cymreig a chyrff cyhoeddus Cymreig trawsffiniol, mae dyletswyddau penodol wedi'u cwblhau gan Lywodraeth Cymru a daethant i rym ar 6 Ebrill 2011.