Legislative change will take a long time, so this should be considered as when the transfer of power is agreed, the full enactment of this could take considerable time.
Bydd newid deddfwriaethol yn cymryd amser hir, felly dylid ystyried hyn fel pan gytunir ar drosglwyddiad pwerau, gallai’r gwaith o ddeddfu hyn yn llawn gymryd cryn amser.