As it is not necessary to use levels to note language requirements in order to comply with the Welsh Language Standards there is no specific level framework that you must use.
Gan nad oes rhaid defnyddio lefelau i nodi gofynion iaith er mwyn cydymffurfio â Safonau’r Gymraeg nid oes fframwaith lefelau penodol y mae’n rhaid i chi ddefnyddio.