{
  "url": "https://openlegislation.uk/air-navigation-carbon-offsetting-and-reduction-scheme-for-international-aviation-order-2021/article-27",
  "json_url": "https://openlegislation.uk/air-navigation-carbon-offsetting-and-reduction-scheme-for-international-aviation-order-2021/article-27.json",
  "legislation": "uksi/2021/534",
  "legislation_title": "The Air Navigation (Carbon Offsetting and Reduction Scheme for International Aviation) Order 2021",
  "legislation_url": "https://openlegislation.uk/air-navigation-carbon-offsetting-and-reduction-scheme-for-international-aviation-order-2021",
  "path": "article/27",
  "kind": "article",
  "number": "27",
  "heading": "Approval of modification of the Emissions Monitoring Plan",
  "text": "(1) A Regulator may allow an aeroplane operator to notify modifications of the Emissions Monitoring Plan that are not significant, without such modifications being the subject of the Regulator’s approval.\n(2) Any significant modification of the Emissions Monitoring Plan must be subject to approval by notice by a Regulator.\n(3) Where the Regulator considers a modification not to be significant, it must inform the aeroplane operator without undue delay.\n(4) Significant changes to the Emissions Monitoring Plan include—\n(a) change of emission factor values laid down in the Emissions Monitoring Plan,\n(b) a change between the calculation methods referred to in Schedule 2,\n(c) the introduction of new source streams,\n(d) changes in the status of the aeroplane operator with regard to one of the thresholds specified in article 5 or 22(7) to (12).",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Art. 27(1) substituted (9.11.2022) by The Air Navigation (Carbon Offsetting and Reduction Scheme for International Aviation) (Amendment) Order 2022 (S.I. 2022/1050), arts. 1, 14(2)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Words in art. 27(2) inserted (9.11.2022) by The Air Navigation (Carbon Offsetting and Reduction Scheme for International Aviation) (Amendment) Order 2022 (S.I. 2022/1050), arts. 1, 14(3)"
    },
    {
      "type": "I",
      "label": "I1",
      "text": "Art. 27 in force at 26.5.2021, see art. 1"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2021/534/article/27",
    "retrieved_at": "2026-10-28T22:14:08.873830+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."
}