Ym mis Mawrth 2021, gwnaed rheoliadau a oedd yn darparu ar gyfer creu pedwar Cyd-bwyllgor Corfforedig yng Nghymru. Roedd y rheoliadau sefydlu hynny hefyd yn cynnwys y trefniadau cyfansoddiadol craidd a manylion allweddol, megis ynglŷn â’r aelodaeth a’r swyddogaethau a fydd yn cael eu cyflawni gan bob Cyd-bwyllgor. Ochr yn ochr â’r rheoliadau sefydlu, roedd nifer o offerynnau eraill a oedd yn sicrhau bod y Cyd-bwyllgorau (a’u haelodau) yn ddarostyngedig i’r gofynion oruchwylio, rheoli ac ymddygiad priodol.
In March 2021 Regulations were made which provided for the establishment of four CJCs in Wales.  Those Establishment Regulations also included the core constitutional arrangements and key details such as membership and the functions which will be exercised by each CJC.  The Establishment Regulations were accompanied by a number of other instruments which ensured CJCs (and their members) are subject to appropriate oversight, management and conduct requirements.