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PART C — ROLLING NOISE REQUIREMENTS

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) · European Union

1. The noise levels determined in accordance with the procedure specified in the implementing measures to this Regulation shall not exceed the limits designated in points 1.1 or 1.2. The Tables in points 1.1 and 1.2 represent the measured values corrected for temperature, except in the case of C3 tyres, and instrument tolerance, and are rounded down to the nearest whole value. 1.1. Class C1 tyres, with reference to the nominal section width of the tyre that has been tested: Tyre class Nominal section width (mm) Limit values in dB(A) C1A ≤ 185 70 C1B > 185 ≤ 215 71 C1C > 215 ≤ 245 71 C1D > 245 ≤ 275 72 C1E > 275 74 For snow tyres, extra load tyres or reinforced tyres, or any combination of these classifications, the above limits shall be increased by 1 dB(A). 1.2. 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: EUR-Lex (Cellar) · retrieved 2026-10-29 · Text as adopted (Official Journal); later amendments are not incorporated in this text.