# Commission Implementing Decision (EU) 2019/1119 of 28 June 2019 on the approval of efficient vehicle exterior lighting using light emitting diodes for use in internal combustion engine vehicles and non-externally chargeable hybrid electrified vehicles as an innovative technology for reducing CO2 emissions from passenger cars pursuant to Regulation (EC) No 443/2009 of the European Parliament and of the Council (Text with EEA relevance), Division: Formula 7

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

s P EI i – = s P EI i n = ∑ n j = 1 P EI i j − P EI i – 2 n n − 1 Where:
n Number of measurements of the sample, which is at least 5
The CO2-emission correction factor K CO 2 shall be determined from a set of T measurements performed by the manufacturer, in accordance with paragraph 2.2 of Appendix 2 to Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151. For each measurement, electric balance during the test and the measured CO2-emissions shall be recorded.
In order to evaluate the statistical error of K CO 2 , all T combinations without repetitions of T-1 measurements shall be used to extrapolate T different values of K CO 2 (i.e. K CO 2 t ). The extrapolation shall be performed in accordance with the method defined in paragraph 2.2 of Appendix 2 to Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151.
The standard deviation of K CO 2 s K CO 2 – shall be calculated in accordance with Formula 8.

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Source: https://www.legislation.gov.uk/eudn/2019/1119/annex/division/4/division/4.2/division/4.2.2/division/1 (the official version)
Page: https://openlegislation.uk/eu-decision-2019-1119/annex/division-4/division-4.2/division-4.2.2/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.