# Regulation (EU) No 540/2014 of the European Parliament and of the Council of 16 April 2014 on the sound level of motor vehicles and of replacement silencing systems, and amending Directive 2007/46/EC and repealing Directive 70/157/EEC (Text with EEA relevance), Division 5.1

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

In order to facilitate in-use compliance testing of hybrid electric vehicles — where an internal combustion engine cannot operate when the vehicle is stationary — the following information relating to the sound-pressure level measurements carried out in accordance with point 4.1 of Annex II for the motor vehicles in motion is referred to as in-use compliance reference data:
(a)gear (i) or, for vehicles tested with non-locked gear ratios, the position of the gear selector chosen for the test;
(b)position of the operating switch during measurement of the sound pressure level Lwot,(i) (if switch is fitted).
(c)pre-acceleration length lPA in m;
(d)average vehicle speed in km/h at the beginning of the full throttle acceleration for tests in gear (i); and
(e)sound pressure level Lwot,(i) in dB(A) of the wide-open-throttle tests in gear (i), defined as the maximum of the two values resulting from averaging the individual measurement results at each microphone position separately.

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Source: https://www.legislation.gov.uk/eur/2014/540/annex/II/division/5/division/5.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2014-540/annex-II/division-5/division-5.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.