{
  "url": "https://openlegislation.uk/eu-regulation-2017-1151/annex-II/part-B/division-5/division-5.10/division-5.10.5",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-1151/annex-II/part-B/division-5/division-5.10/division-5.10.5.json",
  "legislation": "eur/2017/1151",
  "legislation_title": "Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-1151",
  "path": "annex/II/part/B/division/5/division/5.10/division/5.10.5",
  "kind": "division",
  "number": "5.10.5",
  "heading": "Pass/Fail decision for a sample",
  "text": "For the purposes of deciding on a pass/fail result for the sample, ‘p’ is the count of passed results, and ‘f’ is the count of failed results. Each passed test result shall increase the ‘p’ count by 1 and each failed test result shall increase the ‘f’ count by 1 for the relevant open statistical procedure.\nUpon the incorporation of valid emission test results to an open instance of the statistical procedure, the type approval authority shall perform the following actions:\nupdate the cumulative sample size ‘n’ for that instance to reflect the total number of valid emissions tests incorporated to the statistical procedure;\nfollowing an evaluation of the results, update the count of passed results ‘p’ and the count of failed results ‘f’;\ncompute the number of extreme and intermediate outliers in the sample in accordance with point 5.10.4.\ncheck whether a decision is reached with the procedure described below.\nThe decision depends on the cumulative sample size ‘n’, the passed and failed result counts ‘p’ and ‘f’, as well as the number of intermediate and/or extreme outliers in the sample. For the decision on a pass/fail of an ISC sample the granting type approval authority shall use the decision chart in Figure B.2 for vehicles based on types approved as of1 January 2020 and the decision chart in Figure B.2.a for vehicles based on types approved until 31 December 2019. The charts indicate the decision to be taken for a given cumulative sample size ‘n’ and failed count result ‘f’.\nTwo decisions are possible for a statistical procedure for a given combination of vehicle family, emissions test type and pollutant:\n‘Sample pass’ outcome shall be reached when the applicable decision chart from Figure B.2 or Figure B.2.a gives a ‘PASS’ outcome for the current cumulative sample size ‘n’ and the count of failed results ‘f’.\n‘Sample fail’ decision shall be reached when, for a given cumulative sample size ‘n’, when at least one of the following conditions is fulfilled:\nthe applicable decision chart from Figure B.2 or Figure B.2.a gives a ‘FAIL’ decision for the current cumulative sample size ‘n’ and the count of failed results ‘f’.\nthere are two intermediate outliers;\nthere is one extreme outlier.\nIf no decision is reached, the statistical procedure shall remain open and further results shall be incorporated into it until a decision is reached or the procedure is closed in accordance with point 5.10.1.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Inserted by Commission Regulation (EU) 2018/1832 of 5 November 2018 amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) 2017/1151 for the purpose of improving the emission type approval tests and procedures for light passenger and commercial vehicles, including those for in-service conformity and real-driving emissions and introducing devices for monitoring the consumption of fuel and electric energy (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/1151/annex/II/part/B/division/5/division/5.10/division/5.10.5",
    "retrieved_at": "2026-11-01T14:44:48.753743+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."
}