In formulating such a definition, authorities may wish to consider any guidance provided by the sector for this purpose and whether it is appropriate to consult with relevant parties.
Wrth lunio diffiniad o'r fath, efallai y bydd awdurdodau am ystyried unrhyw ganllawiau a ddarparwyd gan y sector at y diben hwn a ph'un a yw'n briodol ymgynghori â phartïon perthnasol.