The A55 trunk road (entry and exit slip roads at junction 4, (Dalar Hir interchange), Anglesey) (temporary prohibition of vehicles) Order 2021
Gorchymyn cefnffordd yr A55 (ffyrdd ymuno ac ymadael wrth gyffordd 4 (cyfnewidfa Dalar Hir), Ynys Môn) (gwahardd cerbydau dros dro) 2021