# Transport Act 1981, Paragraph 4


A highway authority may construct road humps in a highway for which they are the highway authority if—
(a) the highway is subject to a statutory speed limit for motor vehicles of 30 miles per hour or less; or
(b) the road humps are especialy authorised by the Secretary of State,
and may remove any road humps so constructed by them.

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Source: https://www.legislation.gov.uk/ukpga/1981/56/schedule/10/paragraph/4 (the official version)
Page: https://openlegislation.uk/transport-act-1981/schedule-10/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.