Mae Ymddiriedolaeth GIG Gwasanaethau Ambiwlans Cymru yn datblygu nifer o ddiwygiadau allweddol sy’n deillio o adolygiad McClelland, gan gynnwys sefydlu’n llawn y trefniadau comisiynu newydd a fydd yn hanfodol i adolygu, mewnbynnu a chymeradwyo cynllun ar sail tymor canolig. Dim ond ar 1 Ebrill, 2014 y daeth y fframwaith cyfreithiol newydd i rym, sy’n rheoli’r berthynas rhwng y Byrddau Iechyd a’r Ymddiriedolaeth Ambiwlans a’r bwrdd sydd newydd ei benodi.
The Welsh Ambulance Services NHS Trust is advancing a number of the key reforms arising from the McClelland review, including the full establishment of the new commissioning arrangements, which will be vital to reviewing, inputting and approving a plan on a medium-term basis.  The new legal framework governing the relationship between health boards and the ambulance trust and the newly-appointed board, only came into being on April 1, 2014.