The M4 Motorway (Junction 40 (Tai Bach) to Junction 42 (Earlswood), Neath Port Talbot) (50 mph Speed Limit) Regulations 2019
The Welsh Ministers make these Regulations which impose a maximum speed limit of 50 miles per hour (instead of the general 70 miles per hour speed limit imposed on motorways by the Motorways Traffic (Speed Limit) Regulations 1974 (S.I. 1974/502)) on the lengths of the M4 motorway specified in the Schedule to these Regulations.