# Commission Implementing Decision (EU) 2018/2079 of 19 December 2018 on the approval of the engine idle coasting function 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 C CO 2 = c × UF × s B TA hot 2 + − UF × s E MC 2 + c × B TA hot − E MC × s UF 2 Where
s C CO 2 Statistical margin of the total CO2 saving [g CO2/km],
c Conversion parameter which is 0,960
B TA hot Arithmetic mean of the CO2 emission of the baseline vehicle under type approval (NEDC) hot start conditions [gCO2/km]
s B TA hot Standard deviation of the arithmetic mean of the CO2 emission of the baseline vehicle under modified testing conditions [gCO2/km]
EMC Arithmetic mean of the CO2 emission of the eco-innovation vehicle under modified testing conditions [gCO2/km]
s E MC Standard deviation of the arithmetic mean of the CO2 emission of the eco-innovation vehicle under modified testing conditions [gCO2/km]
UF Usage factor of the coasting technology, which is 0,52 for vehicles equipped with a conventional powertrain and an automatic transmission and 0,48 for vehicles equipped with a conventional powertrain and a manual transmission with an automated clutch.
sUF Standard deviation of the arithmetic mean of the usage factor, which is 0,027;

---
Source: https://www.legislation.gov.uk/eudn/2018/2079/annex/division/10/division/2 (the official version)
Page: https://openlegislation.uk/eu-decision-2018-2079/annex/division-10/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.