# Commission Implementing Regulation (EU) 2017/656 of 19 December 2016 laying down the administrative requirements relating to emission limits and type-approval of internal combustion engines for non-road mobile machinery in accordance with Regulation (EU) 2016/1628 of the European Parliament and of the Council (Text with EEA relevance), Division 2.3


Section 3 denotes three separate elements:
2.3.1. the number of the latest amending Regulation applicable to the EU type-approval. If there is no amending Regulation, the Regulation referred to in point 2.2 is repeated;
2.3.2. this number is followed by the applicable Engine Category Identification Code from column 4 of Table 1 in Appendix 1;
2.3.3. to be further followed by a slash (‘/’) and the applicable Fuel Type Code from column 3 of Table 2 of Appendix 1;
2.3.3.1. in the case of dual fuel engines, the applicable Duel Fuel Suffix from column 2 of Table 3 is added to denote the gaseous fuel;

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Source: https://www.legislation.gov.uk/eur/2017/656/attachment/6/division/division/2./division/2.3. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-656/attachment-6/division/division-2./division-2.3.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.