{
  "url": "https://openlegislation.uk/eu-regulation-2012-748/annex-I/section-A/division-subpart+o/division-21.a.611/division-b",
  "json_url": "https://openlegislation.uk/eu-regulation-2012-748/annex-I/section-A/division-subpart+o/division-21.a.611/division-b.json",
  "legislation": "eur/2012/748",
  "legislation_title": "Commission Regulation (EU) No 748/2012 of 3 August 2012 laying down implementing rules for the airworthiness and environmental certification of aircraft and related products, parts and appliances, as well as for the certification of design and production organisations (recast) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2012-748",
  "path": "annex/I/section/A/division/subpart+o/division/21.a.611/division/b",
  "kind": "division",
  "number": "(b)",
  "heading": null,
  "text": "Any design change by the holder of the UKTSO authorisation that is extensive enough to require a substantially complete investigation to determine compliance with an UKTSO is a major change. Before making such a change, the holder shall assign a new type or model designation to the article and apply for a new authorisation under point 21.A.603.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Word in Annex 1 point 21.A.611(b) substituted (31.12.2020) by The Aviation Safety (Amendment etc.) (EU Exit) Regulations 2019 (S.I. 2019/645), regs. 1, 206(12)(b) (with Sch. 3) (as amended by S.I. 2019/1098, regs. 1(3), 12); 2020 c. 1, Sch. 5 para. 1(1)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2012/748/annex/I/section/A/division/subpart+o/division/21.a.611/division/b",
    "retrieved_at": "2026-11-01T14:49:15.996010+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."
}