Agorodd yr ymgynghoriad ar 31 Ionawr, ac yn sgil rhoi estyniad o bedair wythnos i gydnabod effeithiau pandemig y coronafeirws ar ymatebwyr posibl, daeth yr ymgynghoriad i ben ar 29 Mai.
The consultation opened on 31 January and, following a four-week extension in recognition of the impact of the coronavirus pandemic on potential respondents, closed on 29 May.