{
  "url": "https://openlegislation.uk/eu-regulation-2018-2066/annex-II/division-2/division-2.1",
  "json_url": "https://openlegislation.uk/eu-regulation-2018-2066/annex-II/division-2/division-2.1.json",
  "legislation": "eur/2018/2066",
  "legislation_title": "Commission Implementing Regulation (EU) 2018/2066 of 19 December 2018 on the monitoring and reporting of greenhouse gas emissions pursuant to Directive 2003/87/EC of the European Parliament and of the Council and amending Commission Regulation (EU) No 601/2012 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2018-2066",
  "path": "annex/II/division/2/division/2.1",
  "kind": "division",
  "number": "2.1",
  "heading": "Tiers for emission factors",
  "text": "Where a biomass fraction is determined for a mixed fuel or material, the tiers defined shall relate to the preliminary emission factor. For fossil fuels and materials the tiers shall relate to the emission factor.\nTier 1: The operator shall apply one of the following:\n(a) the standard factors listed in section 1 of Annex VI;\n(b) other constant values in accordance with point (e) of Article 31(1), where no applicable value is contained in section 1 of Annex VI.\nTier 2a: The operator shall apply country specific emission factors for the respective fuel or material in accordance with points (b) and (c) of Article 31(1) or values in accordance with point (d) of Article 31(1).\nTier 2b: The operator shall derive emission factors for the fuel based on one of the following established proxies, in combination with an empirical correlation as determined at least once per year in accordance with Articles 32 to 35 and 39:\n(a) density measurement of specific oils or gases, including those common to the refinery or steel industry;\n(b) net calorific value for specific coal types.\nThe operator shall ensure that the correlation satisfies the requirements of good engineering practice and that it is applied only to values of the proxy which fall into the range for which it was established.\nTier 3: The operator shall apply one of the following:\n(a) determination of the emission factor in accordance with the relevant provisions of Articles 32 to 35;\n(b) the empirical correlation as specified for Tier 2b, where the operator demonstrates to the satisfaction of the competent authority that the uncertainty of the empirical correlation does not exceed 1/3 of the uncertainty value to which the operator has to adhere with regard to the activity data determination of the relevant fuel or material.",
  "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/2018/2066/annex/II/division/2/division/2.1",
    "retrieved_at": "2026-11-01T14:43:41.859825+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."
}