It was originally made and subsequently amended by the Secretary of State, before the function of making the Order was transferred to the Welsh Ministers by the Wales Act 2017.
Cafodd ei wneud yn wreiddiol a’i ddiwygio wedyn gan yr Ysgrifennydd Gwladol, cyn i’r swyddogaeth o wneud y Gorchymyn gael ei throsglwyddo i Weinidogion Cymru drwy Ddeddf Cymru 2017.