The consultation proposed providing the Welsh Ministers with 3 powers to respond to external circumstances in which changes may need to be made immediately, or very quickly, to the Welsh Tax Acts.
Roedd yr ymgynghoriad yn cynnig rhoi tri phŵer i Weinidogion Cymru i ymateb i amgylchiadau allanol lle y gallai fod angen gwneud newidiadau ar unwaith, neu'n gyflym iawn, i Ddeddfau Trethi Cymru.