{
  "url": "https://openlegislation.uk/eu-regulation-2017-654/annex-III/division-3/division-3.2/division-3.2.3/division-3.2.3.1/division-3.2.3.1.1",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-654/annex-III/division-3/division-3.2/division-3.2.3/division-3.2.3.1/division-3.2.3.1.1.json",
  "legislation": "eur/2017/654",
  "legislation_title": "Commission Delegated Regulation (EU) 2017/654 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-654",
  "path": "annex/III/division/3/division/3.2/division/3.2.3/division/3.2.3.1/division/3.2.3.1.1",
  "kind": "division",
  "number": "3.2.3.1.1",
  "heading": null,
  "text": "For each engine-after-treatment system family, the manufacturer shall determine the number of hours of non-road mobile machinery or engine running after which the operation of the engine-after-treatment system has stabilised. If requested by the approval authority the manufacturer shall make available the data and analysis used to make this determination. As an alternative, the manufacturer may run the engine or non-road mobile machinery between 60 and 125 hours or the equivalent time on the ageing cycle to stabilise the engine-after-treatment system.",
  "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/eur/2017/654/annex/III/division/3/division/3.2/division/3.2.3/division/3.2.3.1/division/3.2.3.1.1",
    "retrieved_at": "2026-11-01T14:45:01.864924+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."
}