Mae’r Datganiad Atodol cysylltiedig yn caniatáu i ddarparwyr wyro oddi wrth y canllawiau mewn ymateb i lefelau trosglwyddiad coronafeirws uwch neu is. Er mwyn sicrhau parhad, gofynnwyd i gyrff unigol y GIG wneud penderfyniadau o’r fath ar ôl cael cyngor gan Iechyd Cyhoeddus Cymru.
The accompanying Supplementary Statement allows providers to depart from the Guidance in response to rising or falling levels of coronavirus transmission.  In order to ensure some continuity, individual NHS bodies have been asked to make such decisions after taking advice from Public Health Wales.