Yng nghyfarfod y Cyd-Bwyllgor Gweinidogion (Llawn) ar 8 Mehefin 2011, cytunwyd ar Femorandwm Cyd-ddealltwriaeth rhyng-Lywodraethol diwygiedig rhwng Llywodraeth y DU, Gweinidogion yr Alban, Gweinidogion Cymru a Phwyllgor Gweithrediaeth Gogledd Iwerddon.
At a meeting of the Joint Ministerial Committee (Plenary) on 8 June 2011, 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.