{
  "url": "https://openlegislation.uk/eu-regulation-2012-601/annex-II/division-1",
  "json_url": "https://openlegislation.uk/eu-regulation-2012-601/annex-II/division-1.json",
  "legislation": "eur/2012/601",
  "legislation_title": "Commission Regulation (EU) No 601/2012 of 21 June 2012 on the monitoring and reporting of greenhouse gas emissions pursuant to Directive 2003/87/EC of the European Parliament and of the Council (Text with EEA relevance) (repealed)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2012-601",
  "path": "annex/II/division/1",
  "kind": "division",
  "number": "1",
  "heading": "Definition of tiers for activity data",
  "text": "The uncertainty thresholds in Table 1 shall apply to tiers relevant to activity data requirements in accordance with point (a) of Article 28(1) and the first subparagraph of Article 29(2), and Annex IV, of this Regulation. The uncertainty thresholds shall be interpreted as maximum permissible uncertainties for the determination of source streams over a reporting period.\nWhere Table 1 does not include activities listed in Annex I to Directive 2003/87/EC and the mass balance is not applied, the operator shall use the tiers listed in Table 1 under ‘Combustion of fuels and fuels used as process input’ for those activities.\nTable 1\nTiers for activity data (maximum permissible uncertainty for each tier)\nFor monitoring emissions from catalytic cracker regeneration (other catalyst regeneration and flexi-cokers) in mineral oil refineries, the required uncertainty is related to the total uncertainty of all emissions from that source.\nAmount [t] of CKD or bypass dust (where relevant) leaving the kiln system over a reporting period estimated using industry best practice guidelines.\nActivity/source stream type\nParameter to which the uncertainty is applied\nTier 1\nTier 2\nTier 3\nTier 4\nCombustion of fuels and fuels used as process input\nCommercial standard fuels\nAmount of fuel [t] or [Nm3]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nOther gaseous and liquid fuels\nAmount of fuel [t] or [Nm3]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nSolid fuels\nAmount of fuel [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nFlaring\nAmount of flare gas [Nm3]\n± 17,5 %\n± 12,5 %\n± 7,5 %\nScrubbing: carbonate (Method A)\nAmount carbonate consumed [t]\n± 7,5 %\nScrubbing: gypsum (Method B)\nAmount gypsum produced [t]\n± 7,5 %\nRefining of mineral oil\nCatalytic cracker regeneration\nUncertainty requirements apply separately for each emission source\n± 10 %\n± 7,5 %\n± 5 %\n± 2,5 %\nHydrogen production\nHydrocarbon feed [t]\n± 7,5 %\n± 2,5 %\nProduction of coke\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nMetal ore roasting and sintering\nCarbonate input\nCarbonate input material and process residues [t]\n± 5 %\n± 2,5 %\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nProduction of iron and steel\nFuel as process input\nEach mass flow into and from the installation [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nProduction of cement clinker\nKiln input based (Method A)\nEach relevant kiln input [t]\n± 7,5 %\n± 5 %\n± 2,5 %\nClinker output (Method B)\nClinker produced [t]\n± 5 %\n± 2,5 %\nCKD\nCKD or bypass dust [t]\nn.a.\n± 7,5 %\nNon-carbonate carbon\nEach raw material [t]\n± 15 %\n± 7,5 %\nProduction of lime and calcination of dolomite and magnesite\nCarbonates (Method A)\nEach relevant kiln input [t]\n± 7,5 %\n± 5 %\n± 2,5 %\nAlkali earth oxide (Method B)\nLime produced [t]\n± 5 %\n± 2,5 %\nKiln dust (Method B)\nKiln dust [t]\nn.a.\n± 7,5 %\nManufacture of glass and mineral wool\nCarbonates (input)\nEach carbonate raw material or additives associated with CO2 emissions [t]\n± 2,5 %\n± 1,5 %\nManufacture of ceramic products\nCarbon inputs (Method A)\nEach carbonate raw material or additive associated with CO2 emissions [t]\n± 7,5 %\n± 5 %\n± 2,5 %\nAlkali oxide (Method B)\nGross production including rejected products and cullet from the kilns and shipment [t]\n± 7,5 %\n± 5 %\n± 2,5 %\nScrubbing\nDry CaCO3 consumed [t]\n± 7,5 %\nProduction of pulp and paper\nMake up chemicals\nAmount of CaCO3 and Na2CO3 [t]\n± 2,5 %\n± 1,5 %\nProduction of carbon black\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nProduction of ammonia\nFuel as process input\nAmount fuel used as process input [t] or [Nm3]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nProduction of hydrogen and synthesis gas\nFuel as process input\nAmount fuel used as process input for hydrogen production [t] or [Nm3]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nProduction of bulk organic chemicals\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nProduction or processing of ferrous and non-ferrous metals, including secondary aluminium\nProcess emissions\nEach input material or process residue used as input material in the process [t]\n± 5 %\n± 2,5 %\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nPrimary aluminium production\nMass balance methodology\nEach input and output material [t]\n± 7,5 %\n± 5 %\n± 2,5 %\n± 1,5 %\nPFC emissions (slope method)\nprimary aluminium production in [t], anode effect minutes in [number anode effects/cell day] and [anode effect minutes/occurrence]\n± 2,5 %\n± 1,5 %\nPFC emissions (overvoltage method)\nprimary aluminium production in [t], anode effect overvoltage [mV] and current efficiency [-]\n± 2,5 %\n± 1,5 %",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "For monitoring emissions from catalytic cracker regeneration (other catalyst regeneration and flexi-cokers) in mineral oil refineries, the required uncertainty is related to the total uncertainty of all emissions from that source."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "Amount [t] of CKD or bypass dust (where relevant) leaving the kiln system over a reporting period estimated using industry best practice guidelines."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2012/601/annex/II/division/1",
    "retrieved_at": "2026-11-01T14:49:20.227833+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."
}