# 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 4.3.5.1: Handling of interruptions during the FCMC

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

If an after-treatment regeneration event occurs during the FCMC for engines equipped with exhaust after-treatment systems that are regenerated on a periodic basis defined in accordance with paragraph 6.6 of Annex 4 to UN/ECE Regulation 49 Rev.06, all measurements at that engine speed mode shall be void. The regeneration event shall be completed and afterwards the procedure shall be continued as described in paragraph 4.3.5.1.1.
If an unexpected interruption, malfunction or error occurs during the FCMC, all measurements at that engine speed mode shall be void and one of the following options how to continue shall be chosen by the manufacturer:
(1) the procedure shall be continued as described in paragraph 4.3.5.1.1
(2) the whole FCMC shall be repeated in accordance with paragraphs 4.3.5.4 and 4.3.5.5

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Source: https://www.legislation.gov.uk/eur/2017/2400/annex/V/division/4/division/4.3/division/4.3.5/division/4.3.5.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2400/annex-V/division-4/division-4.3/division-4.3.5/division-4.3.5.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.