Dywedodd Ysgrifennydd yr Economi, Ken Skates y dylid hefyd bwrw ymlaen ar unwaith â chynigion hirddisgwyliedig i ddatganoli pwerau dros y seilwaith rheilffyrdd i Weinidogion Cymru.
Proposals for powers over rail infrastructure to be devolved to Welsh ministers should now also be progressed with immediate effect, Economy Secretary Ken Skates has said.