Welsh Government has also proposed the establishment of Regional Corporate Joint Committees (CJCs) covering areas such as economic development, transport, planning and education.
Mae Llywodraeth Cymru hefyd wedi cynnig sefydlu Cyd-bwyllgorau Corfforedig Rhanbarthol (CJCs) i ymdrin â meysydd fel datblygu economaidd, trafnidiaeth, cynllunio ac addysg.