# Regulation (EC) No 661/2009 of the European Parliament and of the Council of 13 July 2009 concerning type-approval requirements for the general safety of motor vehicles, their trailers and systems, components and separate technical units intended therefor (Text with EEA relevance), Division ( i )

Extent: E+W+S+N.I.

Tyre pressure monitoring system for M1 vehicles applies on a compulsory basis in accordance with Article 9(2) of Regulation (EC) No 661/2009. UN Regulation No 141 applies to the approval of vehicles of category M1 up to a maximum mass of 3 500 kg. UN Regulation No 141 may apply on voluntary basis to the approval of vehicles of category N1 that are not fitted with twin wheels on an axle.

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Source: https://www.legislation.gov.uk/eur/2009/661/annex/IV/annotations/1/annotation/12 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-661/annex-IV/annotations/1/annotation/12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.