{
  "url": "https://openlegislation.uk/eu-regulation-2019-631/annex-III/division-A/division-1/division-1.2/division-1.2.4",
  "json_url": "https://openlegislation.uk/eu-regulation-2019-631/annex-III/division-A/division-1/division-1.2/division-1.2.4.json",
  "legislation": "eur/2019/631",
  "legislation_title": "Regulation (EU) 2019/631 of the European Parliament and of the Council of 17 April 2019 setting CO2 emission performance standards for new passenger cars and for new light commercial vehicles, and repealing Regulations (EC) No 443/2009 and (EU) No 510/2011 (recast) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2019-631",
  "path": "annex/III/division/A/division/1/division/1.2/division/1.2.4",
  "kind": "division",
  "number": "1.2.4",
  "heading": "Calculation of the monitoring CO2 emissions in the case of incomplete base vehicles",
  "text": "A manufacturer shall, starting from calendar year 2021, calculate the monitoring CO 2 emissions for each of its individual incomplete base vehicles in accordance with the interpolation method referred to in points 3.2.3.2 or 3.2.4 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 (as it has effect in domestic law and as that Regulation has effect in EU law as amended from time to time and by virtue of the Northern Ireland Protocol), using the same method as that applied for the ... UK (NI) type-approval or EU type-approval of the base vehicle with regard to its emissions, where the terms shall be as defined in those points with the following exceptions:\n(a)Mass of the individual vehicle\nThe term ‘TM ind ’ referred to in points 3.2.3.2.2.1 or 3.2.4.1.1.1 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 (as it has effect in domestic law and as that Regulation has effect in EU law as amended from time to time and by virtue of the Northern Ireland Protocol) shall be replaced by the base vehicle default mass, DM base . Where DM base is lower than the test mass of vehicle low, TM L , of the interpolation family, TM ind shall be replaced by TM L . Where DM base is higher than the test mass of vehicle high, TM H , of the interpolation family, TM ind shall be replaced by TM H .\nDM base shall be determined in accordance with the following formula:\nDM base = MRO base × B 0 + 25 kg + M VL\nwhere:\nMRO base is the mass in running order of the base vehicle as defined in point 3.2.5 of Annex XXI to Regulation (EU) 2017/1151 (as it has effect in domestic law and as that Regulation has effect in EU law as amended from time to time and by virtue of the Northern Ireland Protocol);\nB 0 is the body mass value of 1.387;\nM VL is the mass representative of the vehicle load, which means 28 per cent of the maximum vehicle load, where maximum vehicle load is defined as the technically permissible maximum laden mass minus the mass in running order of the base vehicle multiplied by B 0 , minus 25 kg.\nThe value of B 0 shall be adjusted by 31 October 2021 on the basis of the mass in running order of the incomplete base vehicles for all completed vehicles registered in calendar years 2018, 2019, and 2020, calculated in accordance with the below formulas. The new B 0 value shall apply from 1 January 2022 until 31 December 2024.\nFormula 1:\nwhere:\nA i is the value A y as calculated in Formula 2 for the relevant calendar year\nn i is the number of incomplete base vehicles related to completed vehicles registered in the calendar year\nFormula 2:\nwhere:\nA y is the average of the ratio between M fi and M bi for each of the calendar years 2018 to 2020;\nM fi is the mass in running order of the incomplete base vehicle increased by the default added mass as defined in Section 5 of Annex XII to Regulation (EC) No 692/2008 , as it had effect in EU law immediately before IP completion day;\nM bi is the mass in running order of the incomplete base vehicle;\nn is the number of incomplete base vehicles related to completed vehicles registered in the calendar year.\n(b)Rolling resistance of the individual vehicle\nThe rolling resistance of the base vehicle shall be used for the purposes of point 3.2.3.2.2.2 or 3.2.4.1.1.2 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 (as it has effect in domestic law and as that Regulation has effect in EU law as amended from time to time and by virtue of the Northern Ireland Protocol).\n(c)Frontal area\nIn the case of an incomplete base vehicle that belongs to a road load matrix family, the manufacturer shall determine the term ‘Af’ referred to in point 3.2.3.2.2.3 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 (as it has effect in domestic law and as that Regulation has effect in EU law as amended from time to time and by virtue of the Northern Ireland Protocol) in accordance with one of the following options:\n(i)frontal area of the representative vehicle of the road load matrix family, in m 2 ;\n(ii)the mean value of the frontal area of vehicle high and vehicle low of the interpolation family, in m 2 ;\n(iii)the frontal area of the vehicle high of the interpolation family, in case the interpolation method is not used, in m 2 .\nIn the case of an incomplete base vehicle that does not belong to a road load matrix family, the frontal area value of vehicle high of the interpolation family shall be used.",
  "extent": "E+W+S+N.I.",
  "status": "repealed",
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Annexes 1-5 revoked (E.W.S.) (3.1.2024) by The Vehicle Emissions Trading Schemes Order 2023 (S.I. 2023/1394), arts. 1(b), 110(1) (with arts. 116, 117); and revoked (N.I.) (1.1.2025) by The Vehicle Emissions Trading Schemes (Amendment) Order 2024 (S.I. 2024/1130), art. 1(3), reg. 24(1) (with art. 25)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2019/631/annex/III/division/A/division/1/division/1.2/division/1.2.4",
    "retrieved_at": "2026-11-01T14:43:27.834973+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}