Ynghyd â galluogi sefydlu pob un o’r pedwar Cyd-bwyllgor Corfforedig arfaethedig, mae’r Rheoliadau Sefydlu yn cynnwys trefniadau cyfansoddiadol craidd a manylion allweddol megis aelodaeth a’r swyddogaethau fydd yn cael eu gweithredu gan bob Cyd-bwyllgor Corfforedig: cynllunio datblygu strategol; cynllunio trafnidiaeth rhanbarthol; a’r pŵer i weithredu er mwyn hybu neu wella llesiant economaidd eu hardaloedd.
As well as providing for the establishment of each of the four proposed Corporate Joint Committees, the Establishment Regulations also include the core constitutional arrangements and key details such as membership and the functions which will be exercised by each Corporate Joint Committee: strategic development planning; regional transport planning; and the power to do things to promote or improve the economic well-being of their areas.