# Commission Delegated Regulation (EU) 2017/655 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to monitoring of gaseous pollutant emissions from in-service internal combustion engines installed in non-road mobile machinery (Text with EEA relevance), Division 1.4

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

The following engines shall be considered as non-eligible for in-service monitoring test, and an alternative engine shall be selected:
(a) engines without a communication interface which permits the collection of the necessary Electronic Control Unit (ECU) data as specified in Appendix 7;
(b) engines with an ECU with missing data or a data protocol that does not enable clear identification and validation of the necessary signals.

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Source: https://www.legislation.gov.uk/eur/2017/655/annex/division/1/division/1.4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-655/annex/division-1/division-1.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.