# The Motorways Traffic (Speed Limit) Regulations 1974, Regulation 3


No person shall drive a motor vehicle on a motorway at a speed exceeding 70 miles per hour:
Provided that this Regulation shall not apply to the driving of a motor vehicle—
(a) on any of the lengths of motorway referred to in Regulation 4 or 5 below; or
(b) on any other length of motorway on which there is for the time being a restriction imposed under section 13 of the said Act of 1967 on the driving of a motor vehicle in excess of a maximum speed which is less than 70 miles per hour.

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Source: https://www.legislation.gov.uk/uksi/1974/502/regulation/3 (the official version)
Page: https://openlegislation.uk/motorways-traffic-speed-limit-regulations-1974-uksi-1974-502/regulation-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.