Yng nghyfarfod y Cyd-bwyllgor Gweinidogion (Cyfarfod llawn) ar y 16 Hydref 2013, cytunwyd ar Femorandwm Cyd-ddealltwriaeth rhynglywodraethol diwygiedig rhwng Llywodraeth y DU, Gweinidogion yr Alban, Gweinidogion Cymru a Phwyllgor Gweithredol Gogledd Iwerddon.
At a meeting of the Joint Ministerial Committee (Plenary) on 16 October 2013, a revised inter-governmental Memorandum of Understanding was agreed between the UK Government, the Scottish Ministers, the Welsh Ministers and the Northern Ireland Executive Committee.