Recital 13
(13) In order to ensure alignment with the international framework, Regulation (EC) No 661/2009 refers to Regulation No 117 of the Economic Commission for Europe of the United Nations (UNECE) (6), which sets out the relevant measurement methods for the rolling resistance, external rolling noise, and wet and snow grip performance of tyres.
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Source: EUR-Lex (Cellar) · retrieved 2026-11-06 · Text as adopted (Official Journal); later amendments are not incorporated in this text.