Hywel Dda University Health Board, Swansea Bay University Health Board, Cwm Taf Morgannwg University Health Board , Cardiff and Vale University Health Board and Aneurin Bevan University Health Board
Bwrdd Iechyd Prifysgol Cwm Taf Morgannwg, Bwrdd Iechyd Prifysgol Caerdydd a'r Fro, Bwrdd Iechyd Prifysgol Betsi Cadwaladr a Bwrdd Iechyd Prifysgol Bae Abertawe