# Commission Regulation (EU) No 582/2011 of 25 May 2011 implementing and amending Regulation (EC) No 595/2009 of the European Parliament and of the Council with respect to emissions from heavy duty vehicles (Euro VI) and amending Annexes I and III to Directive 2007/46/EC of the European Parliament and of the Council (Text with EEA relevance), Division 4.5.4

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

For the purpose of the assessment of the trip composition, the duration of the share shall be calculated from the moment when the coolant temperature has reached 343 K (70 °C) for the first time or after the coolant temperature is stabilised within +/– 2 K over a period of 5 minutes whichever comes first but no later than 15 minutes after engine start. In accordance with paragraph 4.5 the period elapsed to reach the coolant temperature of 343 K (70 °C) shall be operated under urban driving conditions.
Artificial warming-up of the emission control systems prior to the test is prohibited.

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Source: https://www.legislation.gov.uk/eur/2011/582/annex/II/division/4/division/4.5/division/4.5.4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-582/annex-II/division-4/division-4.5/division-4.5.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.