Mae sicrhau cydbwysedd rhwng darparu canllawiau iechyd cyhoeddus cenedlaethol a galluogi hyblygrwydd lleol wedi bod yn hollbwysig wrth ddatblygu'r canllawiau hyn. Caiff rhagor o fanylion a chymorth eu darparu wrth i ysgolion ac awdurdodau lleol fynd ati i lunio cynlluniau manwl.
Striking a balance between providing national public health guidance and enabling local flexibility has been critical in the development of this guidance. More detail and support will be developed as detailed plans are worked up by schools and local authorities.