These Regulations postpone certain by-elections which were due to be held during the period from 16 March 2020 to 31 January 2021.
Mae’r Rheoliadau hyn yn gohirio is-etholiadau penodol a oedd i fod i gael eu cynnal yn ystod y cyfnod rhwng 16 Mawrth 2020 a 31 Ionawr 2021.