# 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 2.3.2.3


At the request of the manufacturer and with approval of the approval authority, the interpolation line may be extrapolated to a maximum of 3 g/km above the CO2 emission of vehicle H and/or below the CO2 emission of vehicle L. This extension is valid only within the absolute boundaries of the interpolation range specified in paragraph 2.3.2.2.
For the application of a road load matrix family, extrapolation is not permitted.
When two or more interpolation families are identical regarding the requirements of paragraph 5.6. of this Annex, but are distinct because their overall range for CO2 would be higher than the maximum delta specified in paragraph 2.3.2.2., then all individual vehicles of identical specification (e.g. make, model, optional equipment) shall belong to only one of the interpolation families.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/6/division/division/2./division/2.3./division/2.3.2./division/2.3.2.3. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/6/division/division-2./division-2.3./division-2.3.2./division-2.3.2.3.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.