These boards have been set up as part of the Well-being of Future Generations Act, and they replace the Local Service Board (LSB) which were in place previously.
Mae’r byrddau hyn wedi cael eu sefydlu fel rhan o’r Ddeddf Lles Cenedlaethau’r Dyfodol, ac yn disodli Byrddau Gwasanaethau Lleol (LSB) oedd ar waith yn flaenorol.