Roedd yn ofynnol i Weinidogion Cymru adolygu’r cyfyngiadau erbyn 19 Tachwedd.  Rhaid eu hadolygu bob pythefnos wedyn, hyd at 17 Rhagfyr. Ar ôl hynny, rhaid eu hadolygu bob tair wythnos, yn ôl y drefn cyn y cyfnod atal byr.
Welsh Ministers were required to review the restrictions by 19 November.  They must then be reviewed every two weeks up to 17 December, after which they must be reviewed every three weeks, as prior to the firebreak.