http://www.legislation.gov.uk/wsi/2022/374/madeThe A470 Trunk Road (North of Cefn-coed-y-cymmer, Merthyr Tydfil) (Temporary 40 mph Speed Limit) Order 2022Gorchymyn Cefnffordd yr A470 (Man i’r Gogledd o Gefncoedycymer, Merthyr Tudful) (Terfyn Cyflymder 40 mya Dros Dro) 2022King's Printer of Acts of Parliament2022-03-25