# 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 3.2.7.1

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

The engines shall meet the respective emission limits for each pollutant, as applicable to the engine family, after application of the deterioration factors to the test result as measured in accordance with Annex VI (cycle-weighted specific emission for particulate and each individual gas). Depending on the type of DF, the following provisions apply:
(a) Multiplicative: (cycle weighted specific emission) × DF ≤ emission limit
(b) Additive: (cycle weighted specific emission) + DF ≤ emission limit
Cycle weighted specific emission may include the adjustment for infrequent regeneration, where applicable.

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/III/division/3/division/3.2/division/3.2.7/division/3.2.7.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-III/division-3/division-3.2/division-3.2.7/division-3.2.7.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.