# Commission Implementing Decision (EU) 2018/2079 of 19 December 2018 on the approval of the engine idle coasting function as an innovative technology for reducing CO2 emissions from passenger cars pursuant to Regulation (EC) No 443/2009 of the European Parliament and of the Council (Text with EEA relevance), Division 6.1: Definition of the Coast Down Curve

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

The determination of the coast down curve in coasting mode shall be carried out on a chassis dynamometer and following these two compulsory steps:
Bringing the vehicle to operating temperature using the preconditioning procedure;
Executing a coast down in coasting mode from 125 km/h to either a standstill or to the lowest possible coasting speed.

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Source: https://www.legislation.gov.uk/eudn/2018/2079/annex/division/6/division/6.1 (the official version)
Page: https://openlegislation.uk/eu-decision-2018-2079/annex/division-6/division-6.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.