# Commission Delegated Regulation (EU) 2017/654 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery, Division 6.6.2.1: Requirement for establishing adjustment factors using NRTC, LSI-NRTC or RMC

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

The emissions shall be measured on at least three hot-start runs of the NRTC, LSI-NRTC or RMC, one with and two without a regeneration event on a stabilized exhaust after-treatment system. The regeneration process shall occur at least once during the NRTC, LSI-NRTC or RMC with a regeneration event. If regeneration takes longer than one NRTC, LSI-NRTC or RMC, consecutive NRTC, LSI-NRTC or RMC shall be run and emissions continued to be measured without shutting the engine off until regeneration is completed and the average of the tests shall be calculated. If regeneration is completed during any test, the test shall be continued over its entire length.
An appropriate adjustment factor shall be determined for the entire applicable cycle by means of equations (6-10) to (6-13).

---
Source: https://www.legislation.gov.uk/eur/2017/654/annex/VI/division/6/division/6.6/division/6.6.2/division/6.6.2.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-VI/division-6/division-6.6/division-6.6.2/division-6.6.2.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.