The A470, A487, A494, A458, A5 and A55 trunk roads (north west Wales) (20mph and 30mph speed limits) Order 2023
Gorchymyn cefnffyrdd yr A470, yr A487, yr A494, yr A458, yr A5 a’r A55 (gogledd-orllewin Cymru) (terfynau cyflymder 20mya a 30mya) 2023