# 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 3.1.1


Once the engine family has been agreed by the approval authority, the parent engine of the engine family shall be selected using the primary criterion of the highest fuel delivery per stroke per cylinder at the declared maximum torque speed. In the event that two or more engines share this primary criterion, the parent engine shall be selected using the secondary criterion of highest fuel delivery per stroke at rated speed.

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Source: https://www.legislation.gov.uk/eur/2017/656/attachment/10/division/division/3./division/3.1./division/3.1.1. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-656/attachment-10/division/division-3./division-3.1./division-3.1.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.