# 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 4.3.5: Fuel consumption mapping cycle (FCMC)

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

The fuel consumption mapping cycle (FCMC) in accordance with this paragraph shall be omitted for all other engines except the CO2-parent engine of the engine CO2-family. The fuel map data recorded for the CO2-parent engine of the engine CO2-family shall also be applicable to all engines within the same engine CO2-family.
In the case that upon request of the manufacturer the provisions defined in Article 15(5) of this Regulation are applied, the fuel consumption mapping cycle shall be performed additionally for that specific engine.
The engine fuel map shall be measured in a series of steady state engine operation points, as defined according to paragraph 4.3.5.2. The metrics of this map are the fuel consumption in g/h depending on engine speed in min-1 and engine torque in Nm.

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Source: https://www.legislation.gov.uk/eur/2017/2400/annex/V/division/4/division/4.3/division/4.3.5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2400/annex-V/division-4/division-4.3/division-4.3.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.