In respect of principal area arrangements, the Commission makes recommendations to the Welsh Ministers, which it considers are in the interest of effective and convenient local government.
O ran trefniadau prif ardaloedd, mae'r Comisiwn yn gwneud argymhellion i Weinidogion Cymru, sydd, yn ei farn ef, er budd llywodraeth leol effeithiol a chyfleus.