Mae’r pecyn terfynol o ddiwygiadau yn adeiladu ar y set ddrafft o gynigion a gyhoeddwyd ar 24 Mawrth y llynedd. Ers hynny, mae rhagor o gynnydd wedi cael ei wneud i gryfhau’r pecyn, gan ganolbwyntio ar y pryderon a fynegwyd gennym ynglŷn â’r cynigion cynharach. Yn benodol, credwn y gall y strwythurau a’r broses newydd alluogi mwy o ddeialog ystyrlon rhwng llywodraethau ar draws meysydd o ddiddordeb cyffredin – gan gynnwys ar gyllid, cysylltiadau rhwng y DU a'r UE, masnach a materion rhyngwladol – ac yn seiliedig ar fecanwaith osgoi a datrys anghydfodau cliriach a thecach. Bydd y trefniadau hyn i gyd yn cael eu goruchwylio gan gyngor newydd yn cynnwys y Prif Weinidog a Phenaethiaid y Llywodraethau Datganoledig.
The final package of reforms builds on the draft set of proposals that was published on 24 March last year. Further progress has been made since then to strengthen the package, focusing on the concerns we expressed with the earlier proposals. In particular, we believe the new structures and process can enable more meaningful dialogue among governments across areas of mutual interest – including on finance, UK-EU relations, trade and international affairs – and underpinned by a clearer, fairer dispute avoidance and resolution mechanism. These arrangements will all be overseen by a new “Prime Minister and Heads of Devolved Governments Council”.