Emergency Ambulance Services Committee, Swansea Bay University Health Board, Cardiff and Vale University Health Board and Betsi Cadwaladr University Health Board
Pwyllgor Gwasanaethau Ambiwlans Brys, Bwrdd Iechyd Prifysgol Bae Abertawe, Bwrdd Iechyd Prifysgol Caerdydd a'r Fro a Bwrdd Iechyd Prifysgol Betsi Cadwaladr