{
  "url": "https://openlegislation.uk/eu-regulation-2017-2400/annex-VIII/appendix-7",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-2400/annex-VIII/appendix-7.json",
  "legislation": "eur/2017/2400",
  "legislation_title": "Commission Regulation (EU) 2017/2400 of 12 December 2017 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-2400",
  "path": "annex/VIII/appendix/7",
  "kind": "appendix",
  "number": "7",
  "heading": null,
  "text": "Standard values\n1.\nStandard values for the declared air drag value Cd · Adeclared are defined according to Table 18. In case standard values shall be applied, no input data on air drag shall be provided to the simulation tool. In this case the standard values are allocated automatically by the simulation tool.\nTable 18\nStandard values for Cd · Adeclared\nVehicle group\nStandard valueCd · Adeclared [m2]\n1\n7,1\n2\n7,2\n3\n7,4\n4\n8,4\n5\n8,7\n9\n8,5\n10\n8,8\n11\n8,5\n12\n8,8\n16\n9,0\n2.\nFor vehicle configurations ‘rigid lorry + trailer’ the overall air drag value is calculated by the simulation tool by adding standard delta values for trailer influence as specified in Table 19 to the C d ·A declared value for the rigid lorry.\nTable 19\nStandard delta air drag values for trailer influence\nTrailer\nStandard delta air drag values for trailer influence [m2]\nT1\n1,3\nT2\n1,5\n3.\nFor EMS vehicle configurations the air drag value of the overall vehicle configuration is calculated by the simulation tool by adding the standard delta values for EMS influence as specified in Table 20 to the air drag value for the baseline vehicle configuration.\nTable 20\nStandard delta Cd Acr (0) values for EMS influence\nEMS configuration\nStandard delta air drag values for EMS influence [m2]\n(Class 5 tractor + ST1) + T2\n1,5\n(Class 9/11 truck) + dolly + ST 1\n2,1\n(Class 10/12 tractor + ST1) + T2\n1,5",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Regulation (EU) 2019/318 of 19 February 2019 amending Regulation (EU) 2017/2400 and Directive 2007/46/EC of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/2400/annex/VIII/appendix/7",
    "retrieved_at": "2026-11-01T14:44:20.922900+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."
}