The A470 Trunk Road (Powys/Merthyr Tydfil County Boundary to Builth Wells, Powys) (Temporary Speed Restrictions & No Overtaking) Order 2019 / Gorchymyn Cefnffordd yr A470 (Ffin Sirol Powys/Merthyr Tudful i Lanfair-ym-Muallt, Powys) (Cyfyngiadau Cyflymder Dros Dro a Dim Goddiweddyd) 2019