{
  "url": "https://openlegislation.uk/eu-decision-2017-302/annex/division-3/division-1/division-1.15/division-BAT+25",
  "json_url": "https://openlegislation.uk/eu-decision-2017-302/annex/division-3/division-1/division-1.15/division-BAT+25.json",
  "legislation": "eudn/2017/302",
  "legislation_title": "Commission Implementing Decision (EU) 2017/302 of 15 February 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the intensive rearing of poultry or pigs (notified under document C(2017) 688) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2017-302",
  "path": "annex/division/3/division/1/division/1.15/division/BAT+25",
  "kind": "division",
  "number": "BAT 25",
  "heading": null,
  "text": "BAT is to monitor ammonia emissions to air using one of the following techniques with at least the frequency given below.\nA description of the techniques is given in Section 4.9.2.\nTechnique\nFrequency\nApplicability\na\nEstimation by using a mass balance based on the excretion and the total (or total ammoniacal) nitrogen present at each manure management stage.\nOnce every year for each animal category.\nGenerally applicable.\nb\nCalculation by measuring the ammonia concentration and the ventilation rate using ISO, national or international standard methods or other methods ensuring data of an equivalent scientific quality.\nEvery time there are significant changes to at least one of the following parameters:\n(a) the type of livestock reared at the farm;\n(b) the housing system.\nOnly applicable to emissions from each animal house.\nNot applicable to plants with an air cleaning system installed. In this case, BAT 28 applies.\nDue to the cost of measurements, this technique may not be generally applicable.\nc\nEstimation by using emission factors.\nOnce every year for each animal category.\nGenerally applicable.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "A description of the techniques is given in Section 4.9.2."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2017/302/annex/division/3/division/1/division/1.15/division/BAT+25",
    "retrieved_at": "2026-11-01T15:13:35.783160+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."
}