Bydd y bil terfynol yn gosod un o’r prosiectau deddfwriaethol mwyaf o ran maint a chymhlethdod yn hanes Prydain. Er hynny, mae’r Prif Weinidog yn mynnu na ddylai Llywodraeth y DU golli golwg ar anghenion busnesau, gweithwyr a buddsoddwyr posibl er mwyn amddiffyn economi Cymru.
The final bill will set out one of the largest and most complex legislative projects in British history. However, the First Minister is demanding that the UK government must not lose sight of the needs of businesses, workers and potential investors in order to protect the Welsh economy.