# 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 3.2.6.1

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

As an alternative to using a service accumulation schedule to determine DFs, engine manufacturers may select to use assigned multiplicative DFs, as given in Table 3.1.
Table 3.1
Assigned deterioration factors
Test cycle
CO
HC
NOx
PM
PN
NRTC and LSI-NRTC
1,3
1,3
1,15
1,05
1,0
NRSC
1,3
1,3
1,15
1,05
1,0
Assigned additive DFs shall not be given. The assigned multiplicative DFs shall not be transformed into additive DFs.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(a) . . . . .
(b) . . . . .

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/III/division/3/division/3.2/division/3.2.6/division/3.2.6.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-III/division-3/division-3.2/division-3.2.6/division-3.2.6.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.