Milestone 1: to have offered all adults in groups 1 to 4 a vaccine by mid-February (achieved 12 February 2021).
Carreg filltir 1: cynnig brechlyn i bob oedolyn yng ngrwpiau 1 i 4 erbyn canol mis Chwefror (cyflawnwyd ar 12 Chwefror 2021).