{ "url": "https://openlegislation.uk/planning-hazardous-substances-regulations-1992/schedule-1/part-B", "json_url": "https://openlegislation.uk/planning-hazardous-substances-regulations-1992/schedule-1/part-B.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/B", "kind": "part", "number": "B", "heading": "HIGHLY REACTIVE SUBSTANCES AND EXPLOSIVE SUBSTANCES", "text": "Column 1\nColumn 2\nHazardous substances\nControlled quantities\n(in tonnes, unless otherwise stated)\n37 Acetylene (Ethyne) when a gas subject to a pressure not exceeding 620 millibars above that of the atmosphere, and not otherwise deemed to be an explosive by virtue of Order in Council No 30 as amended by the Compressed Acetylene Order 1947, or when contained in a homogeneous porous substance in cylinders in accordance with Order of Secretary of State No 9, made under the Explosives Act 1875\n50\n38 Ammonium nitrate and mixtures containing ammonium nitrate where the nitrogen content derived from the ammonium nitrate excceds 28% of the mixture by weight other than—\n(i) mixtures to which the Explosives Act 1875 applies;\n(ii) ammonium nitrate based products manufactured chemically for use as fertiliser which comply with Council Directive 80/876/EEC; or\n(iii) compound fertilisers.\n500\n39 Aqueous solutions containing more than 90 parts by weight of ammonium nitrate per 100 parts by weight of solution\n500\n40 Ammonium nitrate based products manufactured chemically for use as fertilisers which comply with Council Directive 80/876/EEC and compound fertilisers where the nitrogen content derived from the ammonium nitrate exceeds 28% of the mixture by weight\n1000\n41 2,2-Bis(tert-butylperoxy)butane (>70%)\n5\n42 1,1-Bis(tert-butylperoxy)cyclohexane (>80%)\n5\n43 tert-Butyl peroxyacetate (>70%)\n5\n44 tert-Butyl peroxyisobutyrate (>80%)\n5\n45 tert-Butyl peroxyisopropylcarbonate (>80%)\n5\n46 tert-Butyl peroxymaleate (>80%)\n5\n47 tert-Butyl peroxypivalate (>77%)\n5\n48 Cellulose nitrate other than—\n(i) cellulose nitrate to which the Explosives Act 1875 applies; or\n(ii) solutions of cellulose nitrate where the nitrogen content of the cellulose nitrate does not exceed 12.3% by weight and the solution contains not more than 55 parts of cellulose nitrate per 100 parts by weight of solution\n50\n49 Dibenzyl peroxydicarbonate (>90%)\n5\n50 Diethyl peroxydicarbonate (>30%)\n5\n51 2,2-Dihydroperoxypropane (>30%)\n5\n52 Di-isobutyryl peroxide (>50%)\n5\n53 Di-n-propyl peroxydicarbonate (>80%)\n5\n54 Di-sec-butyl peroxydicarbonate (>80%)\n5\n55 Ethylene oxide\n5\n56 Ethyl nitrate\n50\n57 3,3,6,6,9,9-Hexamethyl-1,2,4,5-tetroxacyclononane (>75%)\n5\n58 Hydrogen\n2\n59 Liquid Oxygen\n500\n60 Methyl ethyl ketone peroxide (>60%)\n5\n61 Methyl isobutyl ketone peroxide (>60%)\n5\n62 Peracetic acid (>60%)\n5\n63 Propylene oxide\n5\n64 Sodium chlorate\n25\n65 Sulphur dichloride\n1", "extent": null, "status": null, "version": "current", "annotations": [ { "type": "footnote", "label": "f1", "text": "S.R. & O. 1937/54." }, { "type": "footnote", "label": "f2", "text": "S.R. & O. 1947/805." }, { "type": "footnote", "label": "f3", "text": "S.R. & O. 1919/869." }, { "type": "footnote", "label": "f4", "text": "1875 c. 17." }, { "type": "footnote", "label": "f5", "text": "OJ No L250, 23.9.80, p. 7." } ], "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)", "affecting": "uksi/2009/1901", "affecting_title": "The Planning (Hazardous Substances) (Amendment) (England) Regulations 2009" }, { "type": "am", "affecting": "uksi/2010/1050", "affecting_title": "The Planning (Hazardous Substances) (Amendment) (England) Regulations 2010" }, { "type": "words 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", "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": "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": "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 inserted", "affecting": "uksi/2014/469", "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014" }, { "type": "words inserted", "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": "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": "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 inserted", "affecting": "uksi/2014/469", "affecting_title": "The Energy Act 2013 (Office for Nuclear Regulation) (Consequential Amendments, Transitional Provisions and Savings) Order 2014" }, { "type": "words inserted", "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": "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": "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/B", "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." }