{
  "url": "https://openlegislation.uk/eu-decision-2020-1339/annex/division-4/division-4.1",
  "json_url": "https://openlegislation.uk/eu-decision-2020-1339/annex/division-4/division-4.1.json",
  "legislation": "eudn/2020/1339",
  "legislation_title": "Commission Implementing Decision (EU) 2020/1339 of 23 September 2020 on the approval pursuant to Regulation (EU) 2019/631 of the European Parliament and of the Council of efficient vehicle exterior lighting using light emitting diodes as an innovative technology for reducing CO2 emissions from certain light commercial vehicles in relation to the Worldwide Harmonised Light Vehicle Test Procedure (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2020-1339",
  "path": "annex/division/4/division/4.1",
  "kind": "division",
  "number": "4.1",
  "heading": "General methodology",
  "text": "The uncertainty of the CO2 savings [W] shall be calculated in accordance with Formula 5 and shall not exceed 30 % of the CO2 savings.\nwhere:\nm is the number of exterior LED lights in the combination tested.\nis the statistical margin of the power consumption of each i-th LED light fitted in the eco-innovative vehicle which shall be calculated in accordance with Formula 6.\nIn case of a low beam AFS the statistical margin of the power consumption [W] shall instead be calculated in accordance with Formulas 7 and 8.\nwhere:\nn is the number of power consumption measurements, which is at least 5 as indicated in Section 2.2.1\ni corresponds to each vehicle light\nj refers to an individual measurement of power consumption\nis the average of the n values of Pk\nK is the number of classes associated with the low beam AFS.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2020/1339/annex/division/4/division/4.1",
    "retrieved_at": "2026-11-01T15:12:09.829550+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."
}