The Order introduces 40mph and 50mph speed limits on lengths of the A465 trunk road between Llanvihangel Crucorney and Pandy, Monmouthshire.
Mae’r Gorchymyn yn cyflwyno terfynau cyflymder 40mya a 50mya ar ddarnau o gefnffordd yr A465 rhwng Llanfihangel Crucornau a Phandy, Sir Fynwy.