Planning applications for infrastructure projects which are of greatest significance to Wales due to their complexity and impacts are now considered and determined by the Welsh Ministers.
Mae ceisiadau cynllunio ar gyfer prosiectau seilwaith sydd o’r arwyddocâd mwyaf i Gymru oherwydd eu cymhlethdod a’u heffaith bellach yn cael eu hystyried a’u dyfarnu gan Weinidogion Cymru.