# Commission Regulation (EU) 2017/2400 of 12 December 2017 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance), Division 3.2.5

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

The wind conditions shall be within the following range:
i.. Average wind speed: ≤ 5 m/s
ii.. Gust wind speed (1s central moving average): ≤ 8 m/s
Items i. and ii. are applicable for the datasets recorded in the high speed test and the misalignment calibration test but not for the low speed tests.
iii.. Average yaw angle (β):
≤ 3 degrees for datasets recorded in the high speed test
≤ 5 degrees for datasets recorded during misalignment calibration test
The validity of wind conditions is checked by the air drag pre-processing based on the signals recorded at the vehicle after application of the boundary layer correction. Measurement data collected under conditions exceeding the above named limits are automatically excluded from the calculation.

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Source: https://www.legislation.gov.uk/eur/2017/2400/annex/VIII/division/3/division/3.2/division/3.2.5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2400/annex-VIII/division-3/division-3.2/division-3.2.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.