{
  "url": "https://openlegislation.uk/planning-hazardous-substances-regulations-1992/schedule-1/part-A",
  "json_url": "https://openlegislation.uk/planning-hazardous-substances-regulations-1992/schedule-1/part-A.json",
  "legislation": "uksi/1992/656",
  "legislation_title": "The Planning (Hazardous Substances) Regulations 1992",
  "legislation_url": "https://openlegislation.uk/planning-hazardous-substances-regulations-1992",
  "path": "schedule/1/part/A",
  "kind": "part",
  "number": "A",
  "heading": "TOXIC SUBSTANCES",
  "text": "Column 1\nColumn 2\nHazardous substances\nControlled quantities\n(in tonnes, unless otherwise stated)\n1 Acetone Cyanohydrin (2-Cyanopropan-2-ol)\n200\n2 Acrolein (2-Propenal)\n200\n3 Acrylonitrile\n20\n4 Allyl alcohol (2-Propen-l-ol)\n200\n5 Allylamine\n200\n6 Ammonia (anhydrous or as solution containing more than 50% by weight of ammonia)\n100\n7 Arsenic trioxide, Arsenious (III) acid and salts\n1\n8 Arsine (Arsenic hydride)\n1\n9 Bromine\n40\n10 Carbon disulphide\n20\n11 Chlorine\n10\n12 Ethylene dibromide (1,2-Dibromoethane)\n50\n13 Ethyleneimine\n50\n14 Formaldehyde (>90%)\n50\n15 Hydrogen chloride (liquefied gas)\n250\n16 Hydrogen cyanide\n20\n17 Hydrogen fluoride\n10\n18 Hydrogen selenide\n1\n19 Hydrogen sulphide\n50\n20 Methyl bromide (Bromoethane)\n200\n21 Methyl isocyanate\n150 kilograms\n22 Nickel tetracarbonyl\n1\n23 Nitrogen oxides\n50\n24 Oxygen difluoride\n1\n25 Pentaborane\n1\n26 Phosgene\n750 kilograms\n27 Phosphine (Hydrogen phosphide)\n1\n28 Propyleneimine\n50\n29 Selenium hexafluoride\n1\n30 Stibine (Antimony hydride)\n1\n31 Sulphur dioxide\n20\n32 Sulphur trioxide (including the sulphur trioxide content in oleum)\n15\n33 Tellurium hexafluoride\n1\n34 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)\n1 kilogram\n35 Tetraethyl lead\n50\n36 Tetramethyl lead\n50",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "words inserted",
      "affecting": "uksi/2014/162",
      "affecting_title": "The Heavy Fuel Oil (Amendment) Regulations 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/1638",
      "affecting_title": "The Explosives Regulations 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/1638",
      "affecting_title": "The Explosives Regulations 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/1638",
      "affecting_title": "The Explosives Regulations 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/1638",
      "affecting_title": "The Explosives Regulations 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/1638",
      "affecting_title": "The Explosives Regulations 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/1638",
      "affecting_title": "The Explosives Regulations 2014"
    },
    {
      "type": "substituted",
      "affecting": "uksi/1999/981",
      "affecting_title": "The Planning (Control of Major-Accident Hazards) Regulations 1999"
    },
    {
      "type": "am (with transtl provns)",
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      "affecting_title": "The Planning (Hazardous Substances) (Amendment) (England) Regulations 2009"
    },
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      "affecting": "uksi/2010/1050",
      "affecting_title": "The Planning (Hazardous Substances) (Amendment) (England) Regulations 2010"
    },
    {
      "type": "substituted",
      "affecting": "uksi/2005/1082",
      "affecting_title": "The Manufacture and Storage of Explosives Regulations 2005"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/469",
      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "words substituted",
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "words substituted",
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
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    {
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/469",
      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "words substituted",
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "words substituted",
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
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      "affecting": "uksi/2014/469",
      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
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      "affecting": "uksi/2014/469",
      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
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    {
      "type": "words substituted",
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
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    {
      "type": "words substituted",
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      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/469",
      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "words substituted",
      "affecting": "uksi/2014/469",
      "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014"
    },
    {
      "type": "substituted",
      "affecting": "wsi/2010/450",
      "affecting_title": "The Planning (Hazardous Substances) (Amendment) (Wales) Regulations 2010"
    },
    {
      "type": "words inserted",
      "affecting": "wsi/2014/375",
      "affecting_title": "The Planning (Hazardous Substances) (Amendment) (Wales) Regulations 2014"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1992/656/schedule/1/part/A",
    "retrieved_at": "2026-10-29T14:25:37.525827+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."
}