The 60 Miles per hour and 50 Miles per hour (Temporary Speed Limit)   Order 1975
The Secretary of State for the Environment (so far as relating to roads in England), the Secretary of State for Scotland (so far as relating to roads in Scotland) and the Secretary of State for Wales (so far as relating to roads in Wales) in exercise respectively of the powers conferred by section 77(3) of the Road Traffic Regulation Act 1967(a), as extended by the Fuel Control (Modification of Enactments) (Speed Limits) Order 1973(b), and now vested in them (c), and of all other enabling pow...