# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 2.1.8


Paragraphs 3.3.5. to 3.3.5.2. of Annex 11 of UN/ECE Regulation No 83 shall be understood as follows:
‘3.3.5.
Manufacturers may demonstrate to the Type Approval Authority that certain components or systems need not be monitored if, in the event of their total failure or removal, emissions do not exceed the OBD threshold limits given in paragraph 3.3.2. of this Annex.
3.3.5.1.
The following devices should however be monitored for total failure or removal (if removal would cause the applicable emission limits in paragraph 5.3.1.4. of this Regulation to be exceeded):
(a)A particulate trap fitted to compression ignition engines as a separate unit or integrated into a combined emission control device;
(b)A NO x after treatment system fitted to compression ignition engines as a separate unit or integrated into a combined emission control device;
(c)A Diesel Oxidation Catalyst (DOC) fitted to compression ignition engines as a separate unit or integrated into a combined emission control device.
3.3.5.2.
The devices referred to in paragraph 3.3.5.1. of this Annex shall also be monitored for any failure that would result in exceeding the applicable OBD threshold limits.’

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/XI/division/1/division/2/division/2.1/division/2.1.8 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-XI/division-1/division-2/division-2.1/division-2.1.8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.