Readers are advised to review legislation for certainty on statutory requirements; and Planning Policy Wales (PPW) and Future Wales for certainty on policy.
Dylai darllenwyr edrych ar y ddeddfwriaeth i weld beth yn union yw’r gofynion statudol, a Pholisi Cynllunio Cymru a Chymru’r Dyfodol i wybod beth yw’r gofynion polisi.