{
  "url": "https://openlegislation.uk/explosives-act-1875-etc-metrication-and-miscellaneous-amendment-regulations-1984/schedule-1",
  "json_url": "https://openlegislation.uk/explosives-act-1875-etc-metrication-and-miscellaneous-amendment-regulations-1984/schedule-1.json",
  "legislation": "uksi/1984/510",
  "legislation_title": "The Explosives Act 1875 etc. (Metrication and Miscellaneous Amendment) Regulations 1984",
  "legislation_url": "https://openlegislation.uk/explosives-act-1875-etc-metrication-and-miscellaneous-amendment-regulations-1984",
  "path": "schedule/1",
  "kind": "schedule",
  "number": "1",
  "heading": "AMENDMENTS TO PROVISIONS",
  "text": "1\n2\n3\n4\nProvisions to be amended\nSubject-matter of measurement\nPresent measurement\nSubstituted measurement\nEXPLOSIVES ACT 1875\nParts I , II and III\nSection 5: (proviso (1))\nMaximum amount of gunpowder to which the section does not apply, if kept for private use and not for sale\nthirty pounds\n15 kilograms\nSection 7\nArea for service of notice on local and harbour authorities\none mile\n1.6 kilometres\nSection 16(3)\nMaximum amount of gunpowder to be kept in certain stores\ntwo tons\n2,000 kilograms\nSection 17: General Rule No. (5)\nAmount of gunpowder below which stores need not have a lightning conductor\none thousand pounds\n500 kilograms\nSection 22: General Rule No. (2)(a)\nMaximum amount of gunpowder allowed in certain registered premises\ntwo hundred pounds\n100 kilograms\nSection 22: General Rule No. (2)(b)\nMaximum amount of gunpowder allowed in other registered premises—\nfifty pounds\n25 kilograms\nbut if in fire-proof safe\none hundred pounds\n50 kilograms\nSection 22: General Rule No. (5)\nAmount above which gunpowder shall be kept in a substantial receptacle\none pound\n500 grams\nSection 24\nDesignated area deemed to be part of a building\ntwenty yards\n20 metres\nAdditional quantity of gunpowder allowed in a factory under certain conditions\nten hundred weight\n500 kilograms\nSection 32\nAmount above which gunpowder shall be sold in a substantial receptacle\none pound\n500 grams\nSection 46: regulation (1)\nMaximum amount of gunpowder allowed in cartridge filling room\nfive pounds\n2 kilograms\nSection 47: regulation (1)\nMaximum amount of gunpowder allowed in certain workshops\none hundred pounds\n50 kilograms\nSection 48: paragraph (a)\nMaximum amount of explosive allowed in small firework factory\none hundred pounds\n50 kilograms\nSection 48: paragraph (b)\nMaximum amount of manufactured fireworks allowed in small firework factory\nfive hundred pounds\n250 kilograms\nSection 48: paragraph (c)\nMaximum amount of coloured fires or stars allowed in small firework factory\ntwenty-five pounds\n12 kilograms\nSection 63\nAmount of gunpowder above which a related accident is notifiable in certain cases\nhalf a ton\n500 kilograms\nFirst Schedule: Part One\nRegulation (1)\nMaximum quantity of gunpowder allowed under mill stones in certain circumstances at one time\nfifty pounds\n25 kilograms\nsixty pounds\n30 kilograms\nRegulation (2)\nMaximum quantity of gunpowder allowed to under press at one time\nten hundred weight\n500 kilograms\nRegulation (3)\nMaximum quantity of gunpowder allowed to be granulated at one time\ntwelve hundred weight\n600 kilograms\nRegulation (4)\nMaximum quantity of gunpowder allowed to be dried at one time\nfifty hundred weight\n2,500 kilograms\nRegulation (5)\nMinimum distance between press houses etc. and expense magazines\nforty yards\n35 metres\nRegulation (6)\nMinimum distance between mill and factory magazine\none hundred and forty yards\n125 metres\nRegulation (7)\nMinimum distance for charcoal from a mill, press or magazine\n20 yards\n20 metres\nFirst Schedule : Part Two\nRegulation (2)\nMaximum amount of gunpowder allowed in a well constructed store\nfour thousand pounds\n2,000 kilograms\nMaximum amount of gunpowder allowed in other stores\nthree hundred pounds\n150 kilograms\nRegulation (3)\nAmount of gunpowder in certain stores\nthree hundred pounds\n150 kilograms\nDistance within which store shall be from mine, quarry, etc.\ntwo hundred yards\n180 metres\nMinimum distance from house of store\ntwo hundred yards\n180 metres\nRegulation (5)\nAmount of gunpowder in certain stores\nthree hundred pounds\n150 kilograms\nDistance within which store shall be from mine, quarry etc.\ntwo hundred yards\n180 metres\nMinimum distance from house of store\ntwo hundred yards\n180 metres\nRegulation (6)\nMinimum distance from the City of London or Westminster of store\nthree miles\n5 kilometres\nMinimum distance from borough or market town of store\none mile\n1.6 kilometres\nMinimum distance from Royal residence of store\ntwo miles\n3 kilometres\nMinimum distance from Crown magazine of store\ntwo miles\n3 kilometres\nMinimum distance from parish church of store\nhalf a mile\n800 metres\nOrder in Council (No. 1) Classifying Explosives\nClass 7 (proviso)\nMaximum quantity of coloured fire composition in deemed “manufactured firework”\none pound\n500 grams\nOrder in Council (No. 3) relating to Magazines for Explosives other than Gunpowder, whether with or without Gunpowder\nPart II\nMaximum amount of gunpowder allowed in cartridge filling room (all references)\n5 lbs.\n2 kilograms\nMaximum amount of other explosive allowed in cartridge filling room\n5 lbs.\n2 kilograms\nPart III\nMaximum amount of gunpowder allowed in workshop (all references)\n100 lbs.\n50 kilograms\nMaximum amount of other explosive allowed in workshop\n100 lbs.\n50 kilograms\nOrder in Council (No. 4) relating to Small Firework Factories\nPart II\nPreamble: paragraph 3\nMaximum amount of gunpowder to be kept in stores\ntwo tons\n2,000 kilograms\nArticle 4\nMinimum distance of danger building from other buildings\n25 yards\n25 metres\nProvisos to Article 4\nReduced distance for screened and protected building\n12 yards\n12 metres\nException for certain magazines\n25 yards\n25 metres\nArticle 6\nDistance, greater than which, a factory of Division A shall be from—\nworks of Class 1\n25 yards\n25 metres\nworks of Class 2\n50 yards\n50 metres\nworks of Class 3\n¼ mile\n400 metres\nRoyal residences\n½ mile\n800 metres\nDistance, greater than which, a factory of Division B shall be from—\nworks of Class 1\n50 yards\n50 metres\nworks of Class 2\n100 yards\n100 metres\nworks of Class 3\n½ mile\n800 metres\nRoyal residences\n1 mile\n1.6 kilometres\nArticle 7\nMaximum quantities in a factory of Division A of—\nexplosives\n50 lbs.\n25 kilograms\ncoloured fires or stars\n25 lbs.\n12 kilograms\nmanufactured fireworks\n150 lbs.\n75 kilograms\nMaximum quantities in a factory of Division B of—\nexplosives\n100 lbs.\n50 kilograms\ncoloured fires or stars\n25 lbs.\n12 kilograms\nmanufactured fireworks\n500 lbs.\n250 kilograms\nPart III\nGeneral Rule No. 6\nMinimum distance between fire and danger building\n25 yards\n25 metres\nReduced distance for screened and protected building\n12 yards\n12 metres\nGeneral Rule No. 20\nMaximum quantities in a danger building of—\nexplosives\n25 lbs.\n12 kilograms\nmanufactured fireworks\n50 lbs.\n25 kilograms\nmanufactured fireworks during packing\n100 lbs.\n50 kilograms\nOrder in Council (No. 6) relating to Stores Licensed for Mixed Explosives\nPart I\nPreamble: paragraph 3\nMaximum amount of gunpowder to be kept in stores\ntwo tons\n2,000 kilograms\nArticle 3(2)(a)\nDistance in excess of which store of Division A shall be from—\nworks of Class 1\n75 feet\n23 metres\nworks of Class 2\n85 feet\n26 metres\nArticle 3(2)(b)\nDistance in excess of which store of Division B shall be from—\nworks of Class 1\n75 feet\n23 metres\nworks of Class 2\n130 feet\n40 metres\nArticle 3(2)(c)\nDistance in excess of which store of Division C shall be from—\nworks of Class 1\n146 feet\n45 metres\nworks of Class 2\n292 feet\n89 metres\nArticle 3(2)(d)\nDistance in excess of which store of Division D shall be from—\nworks of Class 1\n230 feet\n70 metres\nworks of Class 2\n460 feet\n140 metres\nArticle 3(2)(e)\nDistance in excess of which store of Division E shall be from—\nworks of Class 1\n352 feet\n110 metres\nworks of Class 2\n704 feet\n215 metres\nProviso (i) to Article 3(2)\nExempted workshops not regarded as protected works—\nmaximum quantity of explosive\n100 lb.\n50 kilograms\ndistance in excess of which the workshop is from store etc.\n75 feet\n23 metres\nProviso (ii) to Article 3(2)\nRailways not regarded as protected works—\nminimum distance from store\n75 feet\n23 metres\ndistance within which locomotive is from store\n150 feet\n46 metres\nProviso (iii) to Article 3(2)\nMinimum thickness of earth mound screening store\n3 feet\n1 metres\nArticle 3(4)\nMaximum quantity permitted in Division A store—\n(a) general explosive\n150 lb.\n75 kilograms\n(b) certain ammunition\n700 lb.\n320 kilograms\nArticle 3(5)\nMaximum quantity permitted in Division B store—\n(a) general explosive\n300 lb.\n150 kilograms\n(b) certain ammunition\n4,000 lb.\n1,800 kilograms\nArticle 3(6)\nMaximum quantity permitted in Division C store—\n(a) general explosive\n1,000 lb.\n450 kilograms\n(b) certain ammunition\n20,000 lb.\n9,000 kilograms\nArticle 3(7)\nMaximum quantity permitted in Division D store—\n(a) general explosive\n2,000 lb.\n900 kilograms\n(b) certain ammunition\n20,000 lb.\n9,000 kilograms\nArticle 3(8)\nMaximum quantity permitted in Division E store—\n(a) general explosive\n4,000 lb.\n1,800 kilograms\n(b) certain ammunition\n20,000 lb.\n9,000 kilograms\nArticle 3(9)\nRatio of reduction in quantity of general explosive to\npound\nkilogram\npermitted additional quantity of fireworks\n4 lb.\n4 kilograms\nArticle 5\nDistance between store and workshop\n75 feet\n25 metres\nPart III\nMaximum amount of gunpowder allowed in cartridge filling room (all references)\n5 lbs.\n2 kilograms\nMaximum amount of other explosive allowed in cartridge filling room\n5 lbs.\n2 kilograms\nPart IV\nMaximum amount of gunpowder allowed in workshop (all references)\n100 lbs.\n50 kilograms\nMaximum amount of other explosive allowed in workshop\n100 lb.\n50 kilograms\nOrder in Council (No. 9) relating to the Sale of Explosive\nPreamble\nAmount above which gunpowder must be sold in a substantial receptacle\n1 lb.\n500 grams\nArticle 1\nMaximum amount of other explosive which may be sold if not in a substantial receptacle\n1 lb.\n500 grams\nProviso (a) to Article 1\nMaximum amount of gunpowder etc. in an amount of explosive of Class 6 Division 1 which may be sold if not in a substantial receptacle\n5 lbs.\n2 kilograms\nProviso (b) to Article 1\nMaximum amount of explosive of Class 7 Division 2 which may be sold if not in a substantial receptacle\n5 lbs.\n2 kilograms\nOrder in Council (No. 11) respecting Notice to be given of Accidents connected with the Conveyance of Explosives other than Gunpowder\nAmount of gunpowder above which a related accident is notifiable in certain cases\nhalf a ton\n500 kilograms\nAmount of other explosive above which a related accident is notifiable in certain cases\n200 lbs.\n100 kilograms\nOrder in Council (No. 12 to replace No. 8) relating to the Keeping of Explosive for Private Use and not for Sale\nPreamble\nMaximum amount of gunpowder for private use\n30 lbs.\n15 kilograms\nArticle (2)(a)\nMaximum amount of gunpowder in small arms cartridges to which exception applies\nfive pounds\n2 kilograms\nArticle (2)(c)\nMaximum amount of fireworks to which exception applies in certain cases\nfive pounds\n2 kilograms\nArticle (3)(a)\nMaximum amount of explosive which may be specified in certificate\nten pounds\n5 kilograms\nSchedule\nMaximum amount of explosive specified in certificate\nten pounds\n5 kilograms\nOrder in Council (No. 16) repealing and consolidating the previous Orders relating to Premises registered for Mixed Explosives\nPart I\nGeneral Rule No. 2(5)\nAmount above which certain explosives must be kept in closed bag or case\n1 lb.\n500 grams\nAmount of certain explosives above which packages may not be opened on registered premises\n1 lb.\n500 grams\nMaximum amount of certain explosives which a package opened for immediate use may contain\n5 lbs.\n2 kilograms\nPart IV\nMaximum amount of gunpowder in cartridge filling room (all references)\n5 lbs.\n2 kilograms\nMaximum amount of small-arm nitro-compound in cartridge filling room\n5 lbs.\n2 kilograms\nOrder in Council (No. 16A) varying the Order in Council (No. 16) of October 26 1896, relating to Premises registered for Mixed Explosives\nPreamble\nMaximum quantity of fireworks, Mode A\n200 lbs.\n100 kilograms\nMaximum quantity of fireworks, Mode B\n50 lbs.\n25 kilograms\nArticle 1\nMaximum weight for “Shop Goods” Mines, Jack-in-the-boxes and Feu de Joie\n2 lbs.\n1 kilogram\nMaximum weight for “Shop Goods” Maroons\n4 ozs.\n100 grams\nMaximum length for “Shop Goods” Chinese Crackers\n4 inches\n100 millimetres\nArticle 2\nRatio of “Shop Goods” to\ntwo pounds (2 lbs.)\n2 kilograms\nmanufactured fireworks\none pound (1 lb.)\n1 kilogram\nOrder in Council (No. 26) relating to Picric Acid, Picrates and Mixtures of Picric Acid with other Substances\nArticle 2(b)\nMaximum quantity of picric acid not deemed to be an explosive\n1 lb.\n500 grams\nOrder in Council (No. 27) (The Explosives (Di-nitro-phenol and Di-nitro-phenolate) Order 1927)\nArticle 2(c)\nMaximum quantity of di-nitro-phenol to which the Order does not apply\n5 lb.\n2 kilograms\nOrder in Council (No. 28) (The Sale of Explosives Order 1928)\nArticle 3\nAmount of explosive which must be exceeded in a certificate of a Chief Officer of Police\nten pounds\n5 kilograms\nOrder in Council (No. 30) prohibiting the Manufacture, Importation, Keeping, Conveyance or Sale of Acetylene when an Explosive as defined by the Order\nFirst provision\nPressure above which acetylene is deemed to be an explosive\nnine pounds to the square inch\n620 millibars\nProviso (1)(a)\nMaximum pressure of acetylene used in the production of organic compounds\n{three hundred pounds per square inch\n21 bars\n{twenty-two pounds per square inch\n1.5 bars\nProviso (1)(b)\nMaximum pressure of acetylene in any other case\ntwenty-two pounds to the square inch\n1.5 bars\nOrder of Secretary of State (No. 5), dated March 28 1898, relating to Compressed Acetylene in Admixture with Oil-Gas\nMaximum pressure at which acetylene in admixture with oil-gas is deemed not to be an explosive\none hundred and fifty pounds to the square inch\n10 bars\nOrder of Secretary of State (No. 5A), dated September 29 1905, relating to Compressed Acetylene in Admixture with Oil-Gas\nCondition 4\nMaximum pressure at which acetylene in admixture with oil-gas is deemed not to be an explosive\none hundred and fifty pounds per square inch\n10 bars\nOrder of Secretary of State (No. 9), dated June 23 1919, relating to Compressed Acetylene contained in a Porous Substance\nCondition (6)\nMaximum pressure in a cylinder of acetylene\ntwo hundred and twenty-five pounds to the square inch\n15.5 bars\nRelated temperature\nsixty degrees Fahrenheit\n15 degrees Celsius\nProviso to condition (6)\nVolume of certain cylinders\none cubic foot\n30 litres\nMaximum pressure to which such cylinders may be charged\none hundred and fifty pounds to the square inch\n10 bars\nRelated temperature\nsixty degrees Fahrenheit\n15 degrees Celsius\nCondition (7)\nVolume of certain cylinders\none cubic foot\n30 litres\nMaximum pressure allowed in such cylinders\ntwo hundred and twenty-five pounds to the square inch\n15.5 bars\nCondition (11)\nVolume of cylinders required to have certain markings\none cubic foot\n30 litres\nOrder of Secretary of State (No. 11), dated September 20 1924), making Byelaws as to the Conveyance of Explosives on Roads and in certain special cases\nByelaw 1\nAmount below which explosive may be conveyed in a passenger-carrying carriage or boat\n5 lbs.\n2 kilograms\nByelaw 2: paragraph (a) of the proviso\nMinimum space between case and outer package of detonators\nthree inches\n75 millimetres\nByelaw 2: paragraph (b) of the proviso\nMinimum thickness of soft material for outer packages of electric detonators\nhalf an inch\n13 millimetres\nByelaw 4\nQuantity of certain explosives above which byelaw applies\n5 lbs.\n2 kilograms\nByelaw 4; regulation (k)\nMaximum quantity of explosive which may be carried with flammables etc.\n50 lbs.\n25 kilograms\nByelaw 4; regulation (l)\nQuantity of explosive above which delay in conveyance is not allowed\n100 lbs.\n50 kilograms\nByelaw 4: regulation (m)\nQuantity of explosive above which precautions must be taken against the introduction of fire-producing objects etc.\n100 lbs.\n50 kilograms\nByelaw 4 : regulation (n)\nQuantity of explosive above which personnel must be acquainted with byelaws\n100 lbs.\n50 kilograms\nByelaw 4: regulation (o)\nQuantity of explosive which when exceeded during conveyance in towns and villages must be attended by a competent person\n100 lbs.\n50 kilograms\nQuantity of explosive which when exceeded elsewhere must be attended by a competent person\n1,000 lbs.\n500 kilograms\nByelaw 4: regulation (p)\nMaximum quantity of explosive to be conveyed in a carriage or boat with unprotected stowage\n2,000 lbs.\n1 tonne\nMaximum quantity of explosive to be conveyed on a private railway in an enclosed carriage\n16,000 lbs.\n8 tonnes\nMaximum quantity of explosive to be conveyed in any one boat with a close deck\n50,000 lbs.\n25 tonnes\nMaximum calibre of quick firing ammunition\n3-inch\n77 millimetres\nLimit that may be exceeded by non-communicating explosives\n2,000 lbs.\n1 tonne\nMaximum quantity of non-communicating explosives allowed in one carriage\n10,000 lbs.\n5 tonnes\nByelaw 4: regulation (q)\nMinimum distance between carriages or boats containing explosive\n50 yards\n50 metres\nThe Control of Explosives Order 1953\nSchedule\nQuantity of gunpowder specified in licence and the endorsement thereon\npounds\nkilograms\nQuantity of safety-fuze specified in licence and the endorsement thereon\npounds\nkilograms\nThe Keeping of Fireworks Order 1959\nArticle 3(2)\nQuantity of fireworks kept in Mode B above which a closed metal container shall be used\none hundred pounds\n50 kilograms\nMaximum quantity of fireworks to be kept in any one container\none hundred pounds\n50 kilograms\nSchedule\nMaximum quantity of “Shop Goods”—Mode A\n2,000 lbs.\n1,000 kilograms\nMaximum quantity of explosive of Class 6 Division 1—Mode A\n500 lbs.\n250 kilograms\nMaximum quantity of “Shop Goods”—Mode B\n500 lbs.\n250 kilograms\nMaximum quantity of explosive of Class 6 Division 1—Mode B\n500 lbs.\n250 kilograms\nMaximum quantity of explosives in room to which the public have access etc.\n100 lbs.\n50 kilograms",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "5th August 1875 (Rev. VII, p. 1); the relevant amending instrument is Order in Council (No. 1A) dated December 12th 1891, S.R. & O. 1891 p. 277."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "27th November 1875 (Rev. VII, p. 10); the relevant amending instrument is S.I. 1951/1164."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Amount substituted by S.I. 1951/1164."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "27th November 1875 (Rev. VII, p. 14), to which there are amendments not relevant to these Regulations."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "27th November 1875 (Rev. VII, p. 26), the relevant amending instrument is S.I. 1951/1163."
    },
    {
      "type": "footnote",
      "label": "f6",
      "text": "Amount substituted by S.I. 1951/1163."
    },
    {
      "type": "footnote",
      "label": "f7",
      "text": "Amount substituted by S.I. 1951/1163."
    },
    {
      "type": "footnote",
      "label": "f8",
      "text": "27th November 1875 (Rev. VII, p. 39)."
    },
    {
      "type": "footnote",
      "label": "f9",
      "text": "27th November 1875 (Rev. VII, p. 42)."
    },
    {
      "type": "footnote",
      "label": "f10",
      "text": "20th April 1883 (Rev. VII, p. 43), to which there are amendments not relevant to these Regulations."
    },
    {
      "type": "footnote",
      "label": "f11",
      "text": "S.R.&O. 1896/964, to which there are amendments not relevant to this Schedule."
    },
    {
      "type": "footnote",
      "label": "f12",
      "text": "S.R.&O. 1906/380 ."
    },
    {
      "type": "footnote",
      "label": "f13",
      "text": "S.R.&O. 1926/823 ."
    },
    {
      "type": "footnote",
      "label": "f14",
      "text": "to which there are amendments not relevant to these Regulations."
    },
    {
      "type": "footnote",
      "label": "f15",
      "text": "S.R.&O. 1937/54; the relevant amending instrument is S.R.&O. 1947/805."
    },
    {
      "type": "footnote",
      "label": "f16",
      "text": "S.R.&O. 1898/248."
    },
    {
      "type": "footnote",
      "label": "f17",
      "text": "S.R.&O. 1905/1128."
    },
    {
      "type": "footnote",
      "label": "f18",
      "text": "S.R.&O. 1919/809, to which there are amendments not relevant to these Regulations."
    },
    {
      "type": "footnote",
      "label": "f19",
      "text": "S.R.&O. 1924/1129; relevant amending instruments are S.R.&O. 1943/1252 and S.I. 1960/1347."
    },
    {
      "type": "footnote",
      "label": "f20",
      "text": "Byelaw substituted by S.R.&O. 1943/1252."
    },
    {
      "type": "footnote",
      "label": "f21",
      "text": "Amount substituted by S.I. 1960/1347."
    },
    {
      "type": "footnote",
      "label": "f22",
      "text": ", to which there are amendments not relevant to these Regulations."
    }
  ],
  "outstanding_effects": [
    {
      "type": "entry revoked",
      "affecting": "ukpga/2003/22",
      "affecting_title": "Fireworks Act 2003"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1984/510/schedule/1",
    "retrieved_at": "2026-10-29T17:43:50.633064+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."
}