You MUST NOT exceed
- a speed limit displayed within a red circle on a sign
- the maximum speed limit for the road and for your vehicle (see Rule 124).
Speed limits are enforced by the police (see Rule 124).
Law RTRA sects 17, 86, 89 & sched 6
Source note (app): Rule 261 refreshed from the Department for Transport’s GOV.UK Highway Code, checked 2026-09-06. This corrects the imported passage only; the rest of the archive has not been refreshed. © Crown copyright. Contains public sector information licensed under the Open Government Licence v3.0. Licence details: The National Archives, Open Government Licence v3.0. No government endorsement is implied.