# Regulation (EC) No 1222/2009 of the European Parliament and of the Council of 25 November 2009 on the labelling of tyres with respect to fuel efficiency and other essential parameters (Text with EEA relevance), Division 4.1.2.1: Vehicle

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

Permitted modifications on the passenger car are as follows:
those allowing the number of tyre sizes that can be mounted on the vehicle to be increased,
those permitting automatic activation of the braking device to be installed.
Any other modification of the braking system is prohibited.

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Source: https://www.legislation.gov.uk/eur/2009/1222/annex/V/division/4/division/4.1/division/4.1.2/division/4.1.2.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-1222/annex-V/division-4/division-4.1/division-4.1.2/division-4.1.2.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.