# 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), Part C: External rolling noise classes and measured val

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

The external rolling noise measured value (N) must be declared in decibels and calculated in accordance with UNECE Regulation No 117 and its subsequent amendments.
The external rolling noise class must be determined on the basis of the limit values (LV) set out in Part C of Annex II of Regulation (EC) No 661/2009 as follows.
N in dB
External rolling noise class
N ≤ LV – 3
LV – 3 < N ≤ LV
N > LV

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Source: https://www.legislation.gov.uk/eur/2009/1222/annex/I/part/3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-1222/annex-I/part-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.