{
  "url": "https://openlegislation.uk/eu-regulation-2009-1222/annex-IVa/division-3",
  "json_url": "https://openlegislation.uk/eu-regulation-2009-1222/annex-IVa/division-3.json",
  "legislation": "eur/2009/1222",
  "legislation_title": "Regulation (EC) No 1222/2009 of the European Parliament and of the Council of 25 November 2009 on the labelling of tyres with respect to fuel efficiency and other essential parameters (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2009-1222",
  "path": "annex/IVa/division/3",
  "kind": "division",
  "number": "3",
  "heading": "REQUIREMENTS APPLICABLE TO THE REFERENCE LABORATORIES AND DETERMINATION OF THE ASSIGNED VALUES",
  "text": "The assigned values of each alignment tyre shall be determined by a network of reference laboratories. After two years the network shall assess the stability and validity of the assigned values.\nEach reference laboratory participating in the network shall comply with the specifications of Annex 6 of UNECE Regulation No 117 and its subsequent amendments and have a standard deviation (σ m ) as follows:\n(i) not greater than 0,05 kg/t for class C1 and C2 tyres; and\n(ii) not greater than 0,05 kg/t for class C3 tyres.\nThe sets of alignment tyres, conforming to the specification of section 2.2 shall be measured in accordance with section 2.3 by each reference laboratory of the network.\nThe assigned value of each alignment tyre is the average of the measured values given by the reference laboratories of the network for this alignment tyre.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Inserted by Commission Regulation (EU) No 1235/2011 of 29 November 2011 amending Regulation (EC) No 1222/2009 of the European Parliament and of the Council with regard to the wet grip grading of tyres, the measurement of rolling resistance and the verification procedure (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2009/1222/annex/IVa/division/3",
    "retrieved_at": "2026-11-01T14:51:03.606681+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."
}