# 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 1.2

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

Class C2 and C3 tyres, with reference to the category of use of the range of tyres:
Tyre class
Category of use
Limit values in dB(A)
C2
Normal tyres
72
Traction tyres
73
C3
Normal tyres
73
Traction tyres
75
For special use tyres, the above limits shall be increased by 2 dB(A). An additional 2 dB(A) shall be allowed for snow tyres in the C2 traction tyre category. For all other categories of C2 and C3 tyres, an additional 1 dB(A) shall be allowed for snow tyres.

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Source: https://www.legislation.gov.uk/eur/2009/661/annex/II/part/C/division/1/division/1.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-661/annex-II/part-C/division-1/division-1.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.