Records 2,801–3,068 — What can be mailed: USPS hazardous materials, plus item rules for post and couriers

Records 2,801 to 3,068 of 3,068. Each links to its own page, which carries the source URL and the quoted line that states the value.

• Amine, liquid, corrosive, flammable, n.o.s. or Polyamines, liquid, corrosive, flammable, n.o.s. · USPSAmine, liquid, corrosive, flammable, n.o.s. or Polyamines, liquid, corrosive, flammable, n.o.s. 8 UN2734 I, II Prohibited Prohibited
• Ammonia solution, relative density between 0.880 and 0.957 at 15° C in water, with more than 10 percent but not more than 35 percent ammonia · USPSAmmonia solution, relative density between 0.880 and 0.957 at 15° C in water, with more than 10 percent but not more than 35 percent ammonia 8 UN2672 III 8A 8A
• Ammonia solution, relative density less than 0.880 at 15° C in water, with more than 50 percent ammonia · USPSAmmonia solution, relative density less than 0.880 at 15° C in water, with more than 50 percent ammonia 2.2 UN3318 n/a Prohibited Prohibited
• Ammonia solution, relative density less than 0.880 at 15° C in water, with more than 35 percent but not more than 50 percent ammonia · USPSAmmonia solution, relative density less than 0.880 at 15° C in water, with more than 35 percent but not more than 50 percent ammonia 2.2 UN2073 n/a Prohibited Prohibited
• Ammonium nitrate-fuel oil mixture containing only prilled ammonium nitrate and fuel oil · USPSAmmonium nitrate-fuel oil mixture containing only prilled ammonium nitrate and fuel oil 1.5D NA0331 II Prohibited Prohibited
• Ammonium nitrate, with more than 0.2 percent combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance · USPSAmmonium nitrate, with more than 0.2 percent combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance 1.1D UN0222
• Ammonium nitrate, with not more than 0.2 percent of combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance · USPSAmmonium nitrate, with not more than 0.2 percent of combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance 5.1
• Ammunition, illuminating with or without burster, expelling charge, or propelling charge · USPSAmmunition, illuminating with or without burster, expelling charge, or propelling charge 1.2G UN0171 II Prohibited Prohibited
• Ammunition, incendiary liquid or gel, with burster, expelling charge, or propelling charge · USPSAmmunition, incendiary liquid or gel, with burster, expelling charge, or propelling charge 1.3J UN0247 II Prohibited Prohibited
• Ammunition, incendiary, white phosphorus, with burster, expelling charge, or propelling charge · USPSAmmunition, incendiary, white phosphorus, with burster, expelling charge, or propelling charge 1.3H UN0244 II Prohibited Prohibited
• Ammunition, incendiary with or without burster, expelling charge, or propelling charge · USPSAmmunition, incendiary with or without burster, expelling charge, or propelling charge 1.2G UN0009 II Prohibited Prohibited
• Ammunition, smoke, white phosphorus with burster, expelling charge, or propelling charge · USPSAmmunition, smoke, white phosphorus with burster, expelling charge, or propelling charge 1.3H UN0246 II Prohibited Prohibited
• Ammunition smoke, white phosphorus with burster, expelling charge, or propelling charge · USPSAmmunition smoke, white phosphorus with burster, expelling charge, or propelling charge 1.2H UN0245 II Prohibited Prohibited
• Ammunition, tear-producing, nonexplosive, without burster or expelling charge, non-fuzed · USPSAmmunition, tear-producing, nonexplosive, without burster or expelling charge, non-fuzed 6.1 UN2017 II Prohibited Prohibited
• Batteries, nickel-metal hydride see Batteries, dry. Sealed, n.o.s. for nickel metal hydride batteries transported by modes other than vessel · USPSBatteries, nickel-metal hydride see Batteries, dry. Sealed, n.o.s. for nickel metal hydride batteries transported by modes other than vessel 9 UN3496 n/a Prohibited Mailable
• Black powder, compressed or Gunpowder, compressed or Black powder, in pellets or Gunpowder, in pellets · USPSBlack powder, compressed or Gunpowder, compressed or Black powder, in pellets or Gunpowder, in pellets 1.1D UN0028 II Prohibited Prohibited
• Butadienes, stabilized or Butadienes and Hydrocarbon mixture, stabilized containing more than 40 percent butadienes · USPSButadienes, stabilized or Butadienes and Hydrocarbon mixture, stabilized containing more than 40 percent butadienes 2.1 UN1010 n/a Prohibited 2A
• Calcium hypochlorite, dry, corrosive or Calcium hypochlorite mixtures, dry, corrosive with more than 39 percent available chlorine (8.8 percent available oxygen) · USPSCalcium hypochlorite, dry, corrosive or Calcium hypochlorite mixtures, dry, corrosive with more than 39 percent available chlorine (8.8 percent available oxygen) 5.1 UN3485 II 5A 5
• Calcium hypochlorite, dry or Calcium hypochlorite mixtures dry with more than 39 percent available chlorine (8.8 percent available oxygen) · USPSCalcium hypochlorite, dry or Calcium hypochlorite mixtures dry with more than 39 percent available chlorine (8.8 percent available oxygen) 5.1 UN1748 II 5A 5A
• Calcium hypochlorite, hydrated, corrosive or Calcium hypochlorite, hydrated mixture, corrosive with not less than 5.5 percent but not more than 16 percent water · USPSCalcium hypochlorite, hydrated, corrosive or Calcium hypochlorite, hydrated mixture, corrosive with not less than 5.5 percent but not more than 16 percent water 5.1 UN3487 II 5A 5A
• Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 16 percent water · USPSCalcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 16 percent water 5.1 UN2880 II, III 5A 5A
• Calcium hypochlorite mixture, dry, corrosive with more than 10 percent but not more than 39 percent available chlorine · USPSCalcium hypochlorite mixture, dry, corrosive with more than 10 percent but not more than 39 percent available chlorine 5.1 UN3486 III 5A 5A
• Calcium hypochlorite mixtures, dry, with more than 10 percent but not more than 39 percent available chlorine · USPSCalcium hypochlorite mixtures, dry, with more than 10 percent but not more than 39 percent available chlorine 5.1 UN2208 III 5A 5A
• Capacitor, electric double layer (with an energy storage capacity greater than 0.3 Wh) · USPSCapacitor, electric double layer (with an energy storage capacity greater than 0.3 Wh) 9 UN3499 n/a Prohibited 9C
• Chlorodifluoromethane and chloropentafluoroethane mixture or Refrigerant gas R 502 with fixed boiling point, with approximately 49 percent chlorodifluoromethane · USPSChlorodifluoromethane and chloropentafluoroethane mixture or Refrigerant gas R 502 with fixed boiling point, with approximately 49 percent chlorodifluoromethane 2.2 UN1973 n/a 2B 2
• Chlorotrifluoromethane and trifluoromethane azeotropic mixture or Refrigerant gas R 503 with approximately 60 percent chlorotrifluoromethane · USPSChlorotrifluoromethane and trifluoromethane azeotropic mixture or Refrigerant gas R 503 with approximately 60 percent chlorotrifluoromethane 2.2 UN2599 n/a 2B 2B
• Coating solution (includes surface treatments or coatings used for industrial or other purposes such as vehicle undercoating, drum or barrel lining) · USPSCoating solution (includes surface treatments or coatings used for industrial or other purposes such as vehicle undercoating, drum or barrel lining) 3 UN1139 I, II, III Prohibited
• Compact fluorescent lamps and similar devices with small amounts of mercury (UN3506) · USPSManufactured devices that contain small amounts of mercury (UN3506): Compact Fluorescent Lamps (CFL) and similar consumer devices containing minute amounts of mercury are mailable
• Cyclotetramethylenetetranitramine, desensitized or Octogen, desensitized or HMX, desensitized · USPSCyclotetramethylenetetranitramine, desensitized or Octogen, desensitized or HMX, desensitized 1.1D UN0484 II Prohibited Prohibited
• Cyclotetramethylenetetranitramine, wetted or HMX, wetted or Octogen, wetted with not less than 15 percent water, by mass · USPSCyclotetramethylenetetranitramine, wetted or HMX, wetted or Octogen, wetted with not less than 15 percent water, by mass 1.1D UN0226 II Prohibited Prohibited
• Cyclotrimethylenetrinitramine, desensitized or Cyclonite, desensitized or Hexogen, desensitized or RDX, desensitized · USPSCyclotrimethylenetrinitramine, desensitized or Cyclonite, desensitized or Hexogen, desensitized or RDX, desensitized 1.1D UN0483 II Prohibited Prohibited
• Cyclotrimethylenetrinitramine,wetted or Cyclonite, wetted or Hexogen, wetted or RDX, wetted with not less than 15 percent water by mass · USPSCyclotrimethylenetrinitramine,wetted or Cyclonite, wetted or Hexogen, wetted or RDX, wetted with not less than 15 percent water by mass 1.1D UN0072 II Prohibited Prohibited
• Devices, small, hydrocarbon gas powered or Hydrocarbon gas refills for small devices with release device · USPSDevices, small, hydrocarbon gas powered or Hydrocarbon gas refills for small devices with release device 2.1 UN3150 n/a Prohibited 2A
• Diacetone alcohol peroxides, with more than 57 percent in solution with more than 9 percent hydrogen peroxide, less than 26 percent diacetone alcohol and less than 9 percent water; total active oxygen content more than 9 percent by mass · USPSDiacetone alcohol peroxides, with more than 57 percent in solution with more than 9 percent hydrogen peroxide, less than 26 percent diacetone alcohol and less than 9 percent water;
• Diazodinitrophenol, wetted with not less than 40 percent water or mixture of alcohol and water, by mass · USPSDiazodinitrophenol, wetted with not less than 40 percent water or mixture of alcohol and water, by mass 1.1A UN0074 II Prohibited Prohibited
• Dichlorodifluoromethane and difluoroethane azeotropic mixture or Refrigerant gas R 500 with approximately 74 percent dichlorodifluoromethane · USPSDichlorodifluoromethane and difluoroethane azeotropic mixture or Refrigerant gas R 500 with approximately 74 percent dichlorodifluoromethane 2.2 UN2602 n/a 2B 2B
• Diesel fuel 3 NA1993 UN1202 III Prohibited 3A Diethanol nitrosamine dinitrate (dry) · USPSDiesel fuel 3 NA1993 UN1202 III Prohibited 3A Diethanol nitrosamine dinitrate (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• Diethyleneglycol dinitrate, desensitized with not less than 25 percent nonvolatile water- insoluble phlegmatizer, by mass · USPSDiethyleneglycol dinitrate, desensitized with not less than 25 percent nonvolatile water- insoluble phlegmatizer, by mass 1.1D UN0075 II Prohibited Prohibited
• Dinitrophenolates alkali metals, dry or wetted with less than 15 percent water, by mass · USPSDinitrophenolates alkali metals, dry or wetted with less than 15 percent water, by mass 1.3C UN0077 II Prohibited Prohibited
• Elevated temperature liquid, flammable, n.o.s., with flashpoint above 37.8° C, at or above its flashpoint · USPSElevated temperature liquid, flammable, n.o.s., with flashpoint above 37.8° C, at or above its flashpoint 3 UN3256 III Prohibited Prohibited
• Elevated temperature liquid, n.o.s., at or above 100° C and below its flashpoint (including molten metals, molten salts, etc.) · USPSElevated temperature liquid, n.o.s., at or above 100° C and below its flashpoint (including molten metals, molten salts, etc.) 9 UN3257 III Prohibited Prohibited
• Ethanol and gasoline mixture or Ethanol and motor spirit mixture or Ethanol and petrol mixture, with more than 10% ethanol. · USPSEthanol and gasoline mixture or Ethanol and motor spirit mixture or Ethanol and petrol mixture, with more than 10% ethanol. 3 UN3475 II Prohibited Prohibited
• Ethylamine, aqueous solution with not less than 50 percent but not more than 70 percent ethylamine · USPSEthylamine, aqueous solution with not less than 50 percent but not more than 70 percent ethylamine 3 UN2270 II Prohibited Prohibited
• Ethylene, acetylene and propylene in mixture, refrigerated liquid with at least 71.5 percent ethylene with not more than 22.5 percent acetylene and not more than 6 percent propylene · USPSEthylene, acetylene and propylene in mixture, refrigerated liquid with at least 71.5 percent ethylene with not more than 22.5 percent acetylene and not more than 6 percent propylen
• Ethylene oxide and carbon dioxide mixtures with more than 9 percent but not more than 87 percent ethylene oxide · USPSEthylene oxide and carbon dioxide mixtures with more than 9 percent but not more than 87 percent ethylene oxide 2.1 UN1041 n/a Prohibited 2A
• Ethylene oxide and carbon dioxide mixtures with more than 87 percent ethylene oxide · USPSEthylene oxide and carbon dioxide mixtures with more than 87 percent ethylene oxide 2.3 UN3300 n/a Prohibited Prohibited
• Ethylene oxide and carbon dioxide mixtures with not more than 9 percent ethylene oxide · USPSEthylene oxide and carbon dioxide mixtures with not more than 9 percent ethylene oxide 2.2 UN1952 n/a 2B 2B
• Ethylene oxide and chlorotetrafluoroethane mixture with not more than 8.8 percent ethylene oxide · USPSEthylene oxide and chlorotetrafluoroethane mixture with not more than 8.8 percent ethylene oxide 2.2 UN3297 n/a 2B 2B
• Ethylene oxide and dichlorodifluoromethane mixture with not more than 12.5 percent ethylene oxide · USPSEthylene oxide and dichlorodifluoromethane mixture with not more than 12.5 percent ethylene oxide 2.2 UN3070 n/a 2B 2B
• Ethylene oxide and pentafluoroethane mixture with not more than 7.9 percent ethylene oxide · USPSEthylene oxide and pentafluoroethane mixture with not more than 7.9 percent ethylene oxide 2.2 UN3298 n/a 2B 2B
• Ethylene oxide and propylene oxide mixtures with not more than 30 percent ethylene oxide · USPSEthylene oxide and propylene oxide mixtures with not more than 30 percent ethylene oxide 3 UN2983 I Prohibited Prohibited
• Ethylene oxide and tetrafluoroethane mixture with not more than 5.6 percent ethylene oxide · USPSEthyleneoxideandtetrafluoroethane mixture with not more than 5.6 percent ethylene oxide 2.2 UN3299 n/a 2B 2B
• Ethylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1MPa (10 bar) at 50° C · USPSEthylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1MPa (10 bar) at 50° C 2.3 UN1040 n/a Prohibited Prohibited
• Ethyleneoxideandtetrafluoroethane mixture with not more than 5.6 percent ethylene oxide · USPSEthyleneoxideandtetrafluoroethane mixture with not more than 5.6 percent ethylene oxide 2.2 UN3299 n/a 2B 2B
• Ferrous metal borings or Ferrous metal shavings or Ferrous metal turnings or Ferrous metal cuttings in a form liable to self-heating · USPSFerrous metal borings or Ferrous metal shavings or Ferrous metal turnings or Ferrous metal cuttings in a form liable to self-heating 4.2 UN2793 III Prohibited Prohibited
• Fibers or Fabrics, animal or vegetable or Synthetic, n.o.s. with animal or vegetable oil · USPSFibers or Fabrics, animal or vegetable or Synthetic, n.o.s. with animal or vegetable oil 4.2 UN1373 III Prohibited Prohibited
• Formic acid with not less than 10 percent but not more than 85 percent acid by mass · USPSFormic acid with not less than 10 percent but not more than 85 percent acid by mass 8 UN3412 II Prohibited Prohibited
• Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing water- reactive substances · USPSFuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing water- reactive substances 4.3 UN3476 Prohibited Prohib
• Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing corrosive substances · USPSFuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing corrosive substances 8 UN3477 8A 8A
• Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing flammable liquids · USPSFuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing flammable liquids 3 UN3473 Prohibited 3A
• Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing hydrogen in metal hydride · USPSFuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing hydrogen in metal hydride 2.1 UN3479 Prohibited Prohibi
• Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing liquified flammable gas · USPSFuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment containing liquified flammable gas 2.1 UN3478 Prohibited Prohibite
• Gasoline includes gasoline mixed with ethyl alcohol, with not more than 10 percent alcohol · USPSGasoline includes gasoline mixed with ethyl alcohol, with not more than 10 percent alcohol 3 UN1203 II Prohibited Prohibited
• Guanyl nitrosaminoguanylidene hydrazine, wetted with not less than 30 percent water, by mass · USPSGuanyl nitrosaminoguanylidene hydrazine, wetted with not less than 30 percent water, by mass 1.1A UN0113 II Prohibited Prohibited
• Guanyl nitrosaminoguanyltetrazene, wetted or Tetrazene, wetted with not less than 30 percentwater or mixture of alcohol and water, by mass · USPSGuanyl nitrosaminoguanyltetrazene, wetted or Tetrazene, wetted with not less than 30 percentwater or mixture of alcohol and water, by mass 1.1A UN0114 II Prohibited Prohibited
• Hafnium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanicallyproduced,particlesize less than 53 microns; (b) chemically produced, particle size less than 840 microns · USPSHafnium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanicallyproduced,particlesize less than 53 microns; (b) chemically pr
• HMX mixtures, wetted or desensitized RDX and HMX mixtures, wetted with not less than 15 percent water by mass or RDX and HMX mixtures, desensitized with not less than 10 percent phlegmatizer by mass · USPSHMX mixtures, wetted or desensitized RDX and HMX mixtures, wetted with not less than 15 percent water by mass or RDX and HMX mixtures, desensitized with not less than 10 percent ph
• Hydrazine, anhydrous or Hydrazine aqueous solutions with more than 64 percent hydrazine, by mass · USPSHydrazine, anhydrous or Hydrazine aqueous solutions with more than 64 percent hydrazine, by mass 8 UN2029 I Prohibited Prohibited
• Hydrocyanic acid, aqueous solutions or Hydrogen cyanide, aqueous solutions with not more than 20 percent hydrogen cyanide · USPSHydrocyanic acid, aqueous solutions or Hydrogen cyanide, aqueous solutions with not more than 20 percent hydrogen cyanide 6.1 UN1613 I Prohibited Prohibited
• Hydrogen, cyanide, solution in alcohol with not more than 45 percent hydrogen cyanide · USPSHydrogen, cyanide, solution in alcohol with not more than 45 percent hydrogen cyanide 6.1 UN3294 I Prohibited Prohibited
• Hydrogen cyanide, stabilized with less than 3 percent water and absorbed in a porous inert material · USPSHydrogen cyanide, stabilized with less than 3 percent water and absorbed in a porous inert material 6.1 UN1614 I Prohibited Prohibited
• Hydrogen in a metal hydride storage system or Hydrogen in a metal hydride storage system contained in equipment or Hydrogen in a metal hydride storage system packed with equipment · USPSHydrogen in a metal hydride storage system or Hydrogen in a metal hydride storage system contained in equipment or Hydrogen in a metal hydride storage system packed with equipment
• Hydrogen peroxide and peroxyacetic acid mixtures, stabilized with acids, water, and not more than 5 percent peroxyacetic acid · USPSHydrogen peroxide and peroxyacetic acid mixtures, stabilized with acids, water, and not more than 5 percent peroxyacetic acid 5.1 UN3149 II Prohibited Prohibited
• Hydrogen peroxide, aqueous solutions with more than 40 percent but not more than 60 percent hydrogen peroxide (stabilized as necessary) · USPSHydrogen peroxide, aqueous solutions with more than 40 percent but not more than 60 percent hydrogen peroxide (stabilized as necessary) 5.1 UN2014 II Prohibited Prohibited
• Hydrogen peroxide, aqueous solutions with not less than 8 percent but less than 20 percent hydrogen peroxide (stabilized as necessary) · USPSHydrogen peroxide, aqueous solutions with not less than 8 percent but less than 20 percent hydrogen peroxide (stabilized as necessary) 5.1 UN2984 III 5A 5A
• Hydrogen peroxide, aqueous solutions with not less than 20 percent but not more than 40 percent hydrogen peroxide (stabilized as necessary) · USPSHydrogen peroxide, aqueous solutions with not less than 20 percent but not more than 40 percent hydrogen peroxide (stabilized as necessary) 5.1 UN2014 II Prohibited Prohibited
• Hydrogen peroxide, stabilized or Hydrogen peroxide aqueous solutions, stabilized with more than 60 percent hydrogen peroxide · USPSHydrogen peroxide, stabilized or Hydrogen peroxide aqueous solutions, stabilized with more than 60 percent hydrogen peroxide 5.1 UN2015 I Prohibited Prohibited
• Isocyanates, flammable, toxic, n.o.s. or Isocyanate solutions, flammable, toxic, n.o.s. flashpoint less than 23° C · USPSIsocyanates, flammable, toxic, n.o.s. or Isocyanate solutions, flammable, toxic, n.o.s. flashpoint less than 23° C 3 UN2478 II Prohibited Prohibited
• Isocyanates, toxic, flammable, n.o.s. or Isocyanate solutions, toxic, flammable, n.o.s. flashpoint not less than 23° C but not more than 61° C and boiling point less than 300° C · USPSIsocyanates, toxic, flammable, n.o.s. or Isocyanate solutions, toxic, flammable, n.o.s. flashpoint not less than 23° C but not more than 61° C and boiling point less than 300° C 6.
• Isosorbide dinitrate mixture with not less than 60 percent lactose, mannose, starch or calcium hydrogen phosphate · USPSIsosorbide dinitrate mixture with not less than 60 percent lactose, mannose, starch or calcium hydrogen phosphate 4.1 UN2907 II Prohibited Prohibited
• Lead azide, wetted with not less than 20 percent water or mixture of alcohol and water, by mass · USPSLead azide, wetted with not less than 20 percent water or mixture of alcohol and water, by mass 1.1A UN0129 II Prohibited Prohibited
• Lead styphnate, wetted or Lead trinitroresorcinate, wetted with not less than 20 percent water or mixture of alcohol and water, by mass · USPSLead styphnate, wetted or Lead trinitroresorcinate, wetted with not less than 20 percent water or mixture of alcohol and water, by mass 1.1A UN0130 II Prohibited Prohibited
• Lighter refills containing flammable gas not exceeding 4 fluid ounces (7.22 cubic inches) and 65 grams of flammable gas · USPSLighter refills containing flammable gas not exceeding 4 fluid ounces (7.22 cubic inches) and 65 grams of flammable gas 2.1 UN1057 n/a Prohibited 3C
• Magnesium or Magnesium alloys with more than 50 percent magnesium in pellets, turnings, or ribbons · USPSMagnesium or Magnesium alloys with more than 50 percent magnesium in pellets, turnings, or ribbons 4.1 UN1869 III Prohibited 4A
• Mannitol hexanitrate, wetted or Nitromannite, wetted with not less than 40 percent water, or mixture of alcohol and water, by mass · USPSMannitol hexanitrate, wetted or Nitromannite, wetted with not less than 40 percent water, or mixture of alcohol and water, by mass 1.1D UN0133 II Prohibited Prohibited
• Mercaptans, liquid, toxic, flammable, n.o.s. or Mercaptan mixtures, liquid, toxic, flammable, n.o.s., flashpoint not less than 23° C · USPSMercaptans, liquid, toxic, flammable, n.o.s. or Mercaptan mixtures, liquid, toxic, flammable, n.o.s., flashpoint not less than 23° C 6.1 UN3071 II Prohibited Prohibited
• Mercury fulminate, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass · USPSMercury fulminate, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass 1.1A UN0135 II Prohibited Prohibited
• Methane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid), with high methane content · USPSMethane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid), with high methane content 2.1 UN1972 n/a Prohibited 2A
• Methyl ethyl ketone peroxide, in solution with more than 9 percent by mass active oxygen · USPSMethyl ethyl ketone peroxide, in solution with more than 9 percent by mass active oxygen Forbidden Prohibited Prohibited Prohibited Prohibited
• Methyl isobutyl ketone peroxide, in solution with more than 9 percent by mass active oxygen · USPSMethyl isobutyl ketone peroxide, in solution with more than 9 percent by mass active oxygen Forbidden Prohibited Prohibited Prohibited Prohibited
• Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures · USPSNitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures 2.3 UN1975 n/a Prohibited Prohibited
• Nitroanilines (o-; m-; p-;) 6.1 Prohibited Prohibited Prohibited Prohibited Nitroanisole, liquid · USPSNitroanilines (o-; m-; p-;) 6.1 Prohibited Prohibited Prohibited Prohibited Nitroanisole, liquid 6.1 UN2730 III 6A 6A
• Nitrocellulose membrane filters, with not more than 12.6 percent nitrogen, by dry mass · USPSNitrocellulose membrane filters, with not more than 12.6 percent nitrogen, by dry mass 4.1 UN3270 II Prohibited 4A
• Nitrocellulose, plasticized with not less than 18 percent plasticizing substance, by mass · USPSNitrocellulose, plasticized with not less than 18 percent plasticizing substance, by mass 1.3C UN0343 II Prohibited Prohibited
• Nitrocellulose, solution, flammable with not more than 12.6 percent nitrogen, by mass, and not more than 55 percent nitrocellulose · USPSNitrocellulose, solution, flammable with not more than 12.6 percent nitrogen, by mass, and not more than 55 percent nitrocellulose 3 UN2059 II, III Prohibited 3A
• Nitrocellulose, unmodified or plasticized with less than 18 percent plasticizing substance, by mass · USPSNitrocellulose, unmodified or plasticized with less than 18 percent plasticizing substance, by mass 1.1D UN0341 II Prohibited Prohibited
• Nitrocellulose, with alcohol with not less than 25 percent alcohol, by mass, and with not more than 12.6 percent nitrogen, by dry mass · USPSNitrocellulose, with alcohol with not less than 25 percent alcohol, by mass, and with not more than 12.6 percent nitrogen, by dry mass 4.1 UN2556 II Prohibited 4A
• Nitrocellulose, with not more than 12.6 percent, by dry mass mixture with or without plasticizer, with or without pigment · USPSNitrocellulose, with not more than 12.6 percent, by dry mass mixture with or without plasticizer, with or without pigment 4.1 UN2557 II Prohibited 4A
• Nitroglycerin, desensitized with not less than 40 percent non-volatile water insoluble phlegmatizer, by mass · USPSNitroglycerin, desensitized with not less than 40 percent non-volatile water insoluble phlegmatizer, by mass 1.1D UN0143 II Prohibited Prohibited
• Nitroglycerin mixture, desensitized, liquid, flammable, n.o.s. with not more than 30 percent nitroglycerin, by mass · USPSNitroglycerin mixture, desensitized, liquid, flammable, n.o.s. with not more than 30 percent nitroglycerin, by mass 3 UN3343 n/a Prohibited Prohibited
• Nitroglycerin mixture, desensitized, liquid, n.o.s. with not more than 30 percent nitroglycerin, by mass · USPSNitroglycerin mixture, desensitized, liquid, n.o.s. with not more than 30 percent nitroglycerin, by mass 3 UN3357 II Prohibited Prohibited
• Nitroglycerin mixture, desensitized, solid, n.o.s. with more than 2 percent but not more than 10 percent nitroglycerin, by mass · USPSNitroglycerin mixture, desensitized, solid, n.o.s. with more than 2 percent but not more than 10 percent nitroglycerin, by mass 4.1 UN3319 II Prohibited Prohibited
• Nitroglycerin, solution in alcohol, with more than 1 percent but not more than 5 percent nitroglycerin · USPSNitroglycerin, solution in alcohol, with more than 1 percent but not more than 5 percent nitroglycerin 3 UN3064 II Prohibited Prohibited
• Nitroglycerin, solution in alcohol, with more than 1 percent but not more than 10 percent nitroglycerin · USPSNitroglycerin, solution in alcohol, with more than 1 percent but not more than 10 percent nitroglycerin 1.1D UN0144 II Prohibited Prohibited
• Nitroguanidine, wetted or Picrite, wetted with not less than 20 percent water, by mass · USPSNitroguanidine, wetted or Picrite, wetted with not less than 20 percent water, by mass 4.1 UN1336 I Prohibited Prohibited
• Organic phosphate, mixed with compressed gas or Organic phosphate compound, mixed with compressed gas or Organic phosphorous compound, mixed with compressed gas · USPSOrganic phosphate, mixed with compressed gas or Organic phosphate compound, mixed with compressed gas or Organic phosphorous compound, mixed with compressed gas 2.3 NA1955 n/a Proh
• Oxygen generator, chemical (including when contained in associated equipment, e.g., passenger service units (PSUs), portable breathing equipment (PBE), etc.) · USPSOxygen generator, chemical (including when contained in associated equipment, e.g., passenger service units (PSUs), portable breathing equipment (PBE), etc.) 5.1 UN3356 II Prohibit
• Paint, corrosive,flammable (including paint, lacquer, enamel, stain, shellac, varnish, polish, liquid filler and liquid lacquer base) · USPSPaint, corrosive,flammable (including paint, lacquer, enamel, stain, shellac, varnish, polish, liquid filler and liquid lacquer base) 8 UN3470 II Prohibited 8A
• Paint including paint, lacquer, enamel, stain, shellac solutions, varnish, polish, liquid filler, and liquid lacquer base · USPSPaint including paint, lacquer, enamel, stain, shellac solutions, varnish, polish, liquid filler, and liquid lacquer base 3 UN1263 I, II, III Prohibited 3A
• Paint related material corrosive, flammable (including paint thinning or reducing compound) · USPSPaint related material corrosive, flammable (including paint thinning or reducing compound) 8 UN3470 II Prohibited 8A
• Paint related material, flammable, corrosive (including paint thinning or reducing compound) · USPSPaint related material, flammable, corrosive (includingpaint thinningor reducing compound) 3 UN3469 I, II Prohibited Prohibited
• Paint related material including paint thinning, drying, removing, or reducing compound · USPSPaint related material including paint thinning, drying, removing, or reducing compound 3 UN1263 I, II, III Prohibited 8A
• Pentaerythrite tetranitrate mixture, desensitized, solid, n.o.s. or Pentaerythritol tetranitrate mixture, desensitized, solid, n.o.s. or PETN mixture, desensitized, solid, n.o.s., with more than 10 percent but not more than 20 percent PETN, by mass · USPSPentaerythrite tetranitrate mixture, desensitized, solid, n.o.s. or Pentaerythritol tetranitrate mixture, desensitized, solid, n.o.s. or PETN mixture, desensitized, solid, n.o.s.,
• Pentaerythrite tetranitrate or Pentaerythritol tetranitrate or PETN, with not less than 7 percent wax by mass · USPSPentaerythrite tetranitrate or Pentaerythritol tetranitrate or PETN, with not less than 7 percent wax by mass 1.1D UN0411 II Prohibited Prohibited
• Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass · USPSPerchloric acid with more than 50 percent but not more than 72 percent acid, by mass 5.1 UN1873 I Prohibited Prohibited
• Peroxyacetic acid, with more than 43 percent and with more than 6 percent hydrogen peroxide · USPSPeroxyacetic acid, with more than 43 percent and with more than 6 percent hydrogen peroxide Forbidden Prohibited Prohibited Prohibited Prohibited
• Pesticides, insecticides, herbicides with oral LD50 greater than 300 mg/kg (nonregulated) · USPSLiquids and solids such as pesticides, insecticides, herbicides, and irritating material ( 346.11 (b)), that do not meet the classification criteria of a hazardous material per 49
• Phenoxyacetic acid derivative pesticide, liquid, flammable, toxic flashpoint less than 23° C · USPSPhenoxyacetic acid derivative pesticide, liquid, flammable, toxic flashpoint less than 23° C 3 UN3346 I, II Prohibited Prohibited
• Phosphorus, white dry or Phosphorus, white, under water or Phosphorus white, in solution or Phosphorus, yellow dry or Phosphorus, yellow, under water or Phosphorus, yellow, in solution · USPSPhosphorus, white dry or Phosphorus, white, under water or Phosphorus white, in solution or Phosphorus, yellow dry or Phosphorus, yellow, under water or Phosphorus, yellow, in solu
• Plastic molding compound in dough, sheet, or extruded rope form evolving flammable vapor · USPSPlastic molding compound in dough, sheet, or extruded rope form evolving flammable vapor 9 UN3314 III Prohibited 9C
• Potassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization · USPSPotassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization 4.2 UN1382 II Prohibited Prohibited
• Potassium sulfide, hydrated with not less than 30 percent water of crystallization · USPSPotassium sulfide, hydrated with not less than 30 percent water of crystallization 8 UN1847 II Prohibited Prohibited
• Powder cake, wetted or Powder paste, wetted with not less than 17 percent alcohol by mass · USPSPowder cake, wetted or Powder paste, wetted with not less than 17 percent alcohol by mass 1.1C UN0433 II Prohibited Prohibited
• Powder cake, wetted or Powder paste, wetted with not less than 25 percent water, by mass · USPSPowder cake, wetted or Powder paste, wetted with not less than 25 percent water, by mass 1.3C UN0159 II Prohibited Prohibited
• Printing ink, flammable or Printing ink related material (including printing ink thinning or reducing compound), flammable · USPSPrinting ink, flammable or Printing ink related material (including printing ink thinning or reducing compound), flammable 3 UN1210 I, II, II Prohibited 3A
• Propionic acid with not less than 10 percent and less than 90 percent acid by mass · USPSPropionic acid with not less than 10 percent and less than 90 percent acid by mass 8 UN1848 III 8A 8A
• Radioactive material, excepted package-articles manufactured from natural uranium or depleted uranium or natural thorium · USPSRadioactive material, excepted package-articles manufactured from natural uranium or depleted uranium or natural thorium 7 UN2909 n/a Prohibited 7A
• Radioactive material, low specific activity (LSA-II), non fissile or fissile- excepted. · USPSRadioactive material, low specific activity (LSA-II), non fissile or fissile- excepted. 7 UN3321 n/a Prohibited Prohibited
• Radioactive material, low specific activity (LSA-III), non fissile or fissile- excepted. · USPSRadioactive material, low specific activity (LSA-III), non fissile or fissile- excepted. 7 UN3322 n/a Prohibited Prohibited
• Radioactive material, surface contaminated objects (SCO-I or SCO-II) non fissile or fissile- excepted · USPSRadioactive material, surface contaminated objects (SCO-I or SCO-II) non fissile or fissile- excepted 7 UN2913 n/a Prohibited Prohibited
• Radioactive material, transported under special arrangement, non fissile or fissile excepted · USPSRadioactive material, transported under special arrangement, non fissile or fissile excepted 7 UN2919 n/a Prohibited Prohibited
• Radioactive material, Type A package, fissile non-special form, non fissile or fissile-excepted · USPSRadioactive material, Type A package, fissile non-special form, non fissile or fissile-excepted 7 UN2915 n/a Prohibited Prohibited
• Receptacles, small, containing gas (gas cartridges) flammable, without release device, not refillable and not exceeding 1 L capacity · USPSReceptacles, small, containing gas (gas cartridges) flammable, without release device, not refillable and not exceeding 1 L capacity 2.1 UN2037 n/a Prohibited 2A
• Receptacles, small, containing gas or gas cartridges (nonflammable) without release device, not refillable and not exceeding 1 L capacity · USPSReceptacles, small, containing gas or gas cartridges (nonflammable) without release device, not refillable and not exceeding 1 L capacity 2.2 UN2037 n/a 2B 2B
• Receptacles, small, containing gas or gas cartridges (oxidizing) without release device, not refillable and not exceeding 1 L capacity · USPSReceptacles, small, containing gas or gas cartridges (oxidizing) without release device, not refillable and not exceeding 1 L capacity 2.2 UN2037 n/a Prohibited 2B
• Refrigerating machines, containing non-flammable, non-toxic, or ammonia solution (UN2672) · USPSRefrigerating machines, containing non-flammable, non-toxic, or ammonia solution (UN2672) 2.2 UN2857 n/a 2B 2B
• Regulated medical waste (nonsharps), n.o.s. or Clinical waste, unspecified, n.o.s. or (BIO) Medical waste, n.o.s. or Biomedical waste, n.o.s. or Medical waste, n.o.s. · USPSRegulated medical waste (nonsharps), n.o.s. or Clinical waste, unspecified, n.o.s. or (BIO) Medical waste, n.o.s. or Biomedical waste, n.o.s. or Medical waste, n.o.s. 6.2 UN3291 II
• Regulated medical waste (sharps), n.o.s. or Clinical waste, unspecified, n.o.s. or (BIO) Medical waste, n.o.s. or Biomedical waste, n.o.s. or Medical waste, n.o.s. · USPSRegulated medical waste (sharps), n.o.s. or Clinical waste, unspecified, n.o.s. or (BIO) Medical waste, n.o.s. or Biomedical waste, n.o.s. or Medical waste, n.o.s. 6.2 UN3291 II Pr
• Rubber scrap or shoddy, powdered or granulated, not exceeding 840 microns and rubber contend exceeding 45 percent · USPSRubber scrap or shoddy, powdered or granulated, not exceeding 840 microns and rubber contend exceeding 45 percent 4.1 UN1345 II Prohibited Prohibited
• Seed cake, containing vegetable oil solvent extractions and expelled seeds, with not more than 10 percent of oil and when the amount of moisture is higher than 11 percent, with not more than 20 percent of oil and moisture combined · USPSSeed cake, containing vegetable oil solvent extractions and expelled seeds, with not more than 10 percent of oil and when the amount of moisture is higher than 11 percent, with not
• Seed cake with not more than 1.5 percent oil and not more than 11 percent moisture · USPSSeed cake with not more than 1.5 percent oil and not more than 11 percent moisture 4.2 UN2217 III Prohibited Prohibited
• Sharps and regulated medical waste containing Category B infectious substance (UN3291) · USPSRegulated medical waste and sharps medical waste as defined in 346.12 ( f ) and 346.12 ( g ) and containing materials classified as Category B infectious substances must be marked
• Small consumer-type lithium-ion batteries in equipment (up to 20 Wh per cell, 100 Wh per battery) · USPSSmall consumer-type lithium-ion cells and batteries (also called secondary lithium cells or batteries), such as those used to power cell phones and laptop computers, are only maila
• Small consumer-type lithium metal batteries in equipment (up to 1g per cell, 2g per battery) · USPSSmall consumer-type lithium metal cells or batteries (also called primary lithium cells or batteries), such as those used to power cameras or flashlights, are mailable domestically
• Sodium borohydride and sodium hydroxide solution, with not more than 12 percent sodium borohydride and not more than 40 percent sodium hydroxide by mass · USPSSodium borohydride and sodium hydroxide solution, with not more than 12 percent sodium borohydride and not more than 40 percent sodium hydroxide by mass 8 UN3320 II, III Prohibited
• Sodium sulfide, anhydrous or Sodium sulfide with less than 30 percent water of crystallization · USPSSodium sulfide, anhydrous or Sodium sulfide with less than 30 percent water of crystallization 4.2 UN1385 II Prohibited Prohibited
• Substituted nitrophenol pesticides, liquid, flammable, toxic, flashpoint less than 23° C · USPSSubstituted nitrophenol pesticides, liquid, flammable, toxic, flashpoint less than 23° C 3 UN2780 I, II Prohibited Prohibited
• Titanium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanicallyproduced,particlesize less than 53 microns; (b) chemically produced, particle size less than 840 microns · USPSTitanium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanicallyproduced,particlesize less than 53 microns; (b) chemically p
• Toxic by inhalation liquid, corrosive, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 · USPSToxic by inhalation liquid, corrosive, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 6.1 UN3390 I Prohibi
• Toxic by inhalation liquid, corrosive, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 · USPSToxic by inhalation liquid, corrosive, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 6.1 UN3389 I Prohibi
• Toxic by inhalation liquid, flammable, corrosive, n.o.s. with an LC50 lower than or equal to 1000 ml/ m3 and saturated vapor concentration greater than or equal to 10 LC50 · USPSToxic by inhalation liquid, flammable, corrosive, n.o.s. with an LC50 lower than or equal to 1000 ml/ m3 and saturated vapor concentration greater than or equal to 10 LC50 6.1 UN34
• Toxic by inhalation liquid, flammable, corrosive, n.o.s. with an LC50 lower than or equal to 200 ml/ m3 and saturated vapor concentration greater than or equal to 500 LC50 · USPSToxic by inhalation liquid, flammable, corrosive, n.o.s. with an LC50 lower than or equal to 200 ml/ m3 and saturated vapor concentration greater than or equal to 500 LC50 6.1 UN34
• Toxic by inhalation liquid, flammable, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 · USPSToxic by inhalation liquid, flammable, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 6.1 UN3384 I Prohibi
• Toxic by inhalation liquid, flammable, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 · USPSToxic by inhalation liquid, flammable, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 6.1 UN3383 I Prohibi
• Toxic by inhalation liquid, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 · USPSToxic by inhalation liquid, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 6.1 UN3381 I Prohibited Prohibi
• Toxic by inhalation liquid, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 · USPSToxic by inhalation liquid, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 6.1 UN3382 I Prohibited Prohibi
• Toxic by inhalation liquid, oxidizing, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 · USPSToxic by inhalation liquid, oxidizing, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 6.1 UN3388 I Prohibi
• Toxic by inhalation liquid, oxidizing, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 · USPSToxic by inhalation liquid, oxidizing, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 6.1 UN3387 I Prohibi
• Toxic by inhalation liquid, water- reactive, flammable, n.o.s. with an LC50 lower than or equal to 1000 ml/ m3 and saturated vapor concentration greater than or equal to 10 LC50- · USPSToxic by inhalation liquid, water- reactive, flammable, n.o.s. with an LC50 lower than or equal to 1000 ml/ m3 and saturated vapor concentration greater than or equal to 10 LC50- 6
• Toxic by inhalation liquid, water- reactive, flammable, n.o.s. with an LC50 lower than or equal to 200 ml/ m3 and saturated vapor concentration greater than or equal to 500 LC50- · USPSToxic by inhalation liquid, water- reactive, flammable, n.o.s. with an LC50 lower than or equal to 200 ml/ m3 and saturated vapor concentration greater than or equal to 500 LC50- 6
• Toxic by inhalation liquid, water- reactive, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 · USPSToxic by inhalation liquid, water- reactive, n.o.s. with an LC50 lower than or equal to 1000 ml/m3 and saturated vapor concentration greater than or equal to 10 LC50 6.1 UN3386 I P
• Toxic by inhalation liquid, water- reactive, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 · USPSToxic by inhalation liquid, water- reactive, n.o.s. with an LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration greater than or equal to 500 LC50 6.1 UN3385 I P
• Toxic substances with LD50 oral toxicity greater than 5 mg/kg but no more than 50 mg/kg · USPSToxic Substances with LD 50 Oral Toxicity of 50 mg/kg or Less: Division 6.1 toxic substances having LD50 for oral toxicity greater than 5 mg/kg but less than or equal to 50 mg/kg a
• Trinitrochlorobenzene (picryl chloride), wetted, with not less than 10 percent water by mass · USPSTrinitrochlorobenzene (picryl chloride), wetted, with not less than 10 percent water by mass 4.1 UN3365 I Prohibited Prohibited
• Trinitrophenol or Picric acid, dry or wetted with less than 30 percent water, by mass · USPSTrinitrophenol or Picric acid, dry or wetted with less than 30 percent water, by mass 1.1D UN0154 II Prohibited Prohibited
• Trinitroresorcinol or Styphnic acid, dry or wetted with less than 20 percent water, or mixture of alcohol and water, by mass · USPSTrinitroresorcinol or Styphnic acid, dry or wetted with less than 20 percent water, or mixture of alcohol and water, by mass 1.1D UN0219 II Prohibited Prohibited
• Trinitroresorcinol, wetted or Styphnic acid, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass · USPSTrinitroresorcinol, wetted or Styphnic acid, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass 1.1D UN0394 II Prohibited Prohibited
• Trinitrotoluene and Trinitrobenzene mixtures or TNT and trinitrobenzene mixtures or TNT and hexanitrostilbene mixtures or Trinitrotoluene and hexanitrostilbene mixtures · USPSTrinitrotoluene and Trinitrobenzene mixtures or TNT and trinitrobenzene mixtures or TNT and hexanitrostilbene mixtures or Trinitrotoluene and hexanitrostilbene mixtures 1.1D UN0388
• Trinitrotoluene mixtures containing Trinitrobenzene and Hexanitrostilbene or TNT mixtures containing trinitrobenzene and hexanitrostilbene · USPSTrinitrotoluene mixtures containing Trinitrobenzene and Hexanitrostilbene or TNT mixtures containing trinitrobenzene and hexanitrostilbene 1.1D UN0389 II Prohibited Prohibited
• Zirconium, dry, coiled wire, finished metal sheets, strip (thinner than 254 microns but not thinner than 18 microns) · USPSZirconium, dry, coiled wire, finished metal sheets, strip (thinner than 254 microns but not thinner than 18 microns) 4.1 UN2858 III Prohibited 4A
• Zirconium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanicallyproduced,particlesize less than 53 microns; (b) chemically produced, particle size less than 840 microns · USPSZirconium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanicallyproduced,particlesize less than 53 microns; (b) chemically
• Vaccines · Royal Mail / Post OfficeVaccines International & UK – allowed in the mail, see restrictions and packaging guidelines below: May only be sent by, or at the specific request of, a qualified medical practiti
• Vaccines (inbound to the UK) · International mail to the United Kingdom (UPU list)May only be sent by; or at the specific request of a qualified medical practitioner; registered dental practitioner; vertinary surgeon; registered nurse or a recognised laboratory
• Valeraldehyde · USPSValeraldehyde 3 UN2058 II Prohibited 3A
• Valeryl chloride · USPSValeryl chloride 8 UN2502 II 8A 8A
• Valuable items (coins, banknotes, precious metals, jewels) · Royal Mail / ParcelforceGold or silver whether manufactured or not and other precious stones, jewels and other valuables must be sent using one of the International Tracked and Signature services where ap
• Vanadium compound, n.o.s. · USPSVanadium compound, n.o.s. 6.1 UN3285 III 6A 6A
• Vanadium oxytrichloride · USPSVanadium oxytrichloride 8 UN2443 II 8A 8A
• Vanadium pentoxide, non-fused form · USPSVanadium pentoxide, non-fused form 6.1 UN2862 III 6A 6A
• Vanadium tetrachloride · USPSVanadium tetrachloride 8 UN2444 I Prohibited Prohibited
• Vanadium trichloride · USPSVanadium trichloride 8 UN2475 III 8A 8A
• Vanadyl sulfate · USPSVanadyl sulfate 6.1 UN2931 II Prohibited Prohibited
• Vaping Products · UPSUPS also prohibits the shipment of all Vaping Products (as the term is defined at ups.com/tobacco) throughout its U.S. domestic network, including import and export, regardless of
• Vehicle, flammable gas powered or Vehicle, fuel cell, flammable gas powered · USPSVehicle, flammable gas powered or Vehicle, fuel cell, flammable gas powered 9 UN3166 n/a Prohibited Prohibited
• Vehicle, flammable liquid powered or Vehicle, fuel cell, flammable liquid powered · USPSVehicle, flammable liquid powered or Vehicle, fuel cell, flammable liquid powered 9 UN3166 n/a Prohibited Prohibited
• Vinyl acetate, stabilized · USPSVinyl acetate, stabilized 3 UN1301 II Prohibited 3A
• Vinyl bromide, stabilized · USPSVinyl bromide, stabilized 2.1 UN1085 n/a Prohibited 2A
• Vinyl butyrate, stabilized · USPSVinyl butyrate, stabilized 3 UN2838 II Prohibited 3A
• Vinyl chloride, stabilized · USPSVinyl chloride, stabilized 2.1 UN1086 n/a Prohibited 2A
• Vinyl chloroacetate · USPSVinyl chloroacetate 6.1 UN2589 II Prohibited Prohibited
• Vinyl ethyl ether, stabilized · USPSVinyl ethyl ether, stabilized 3 UN1302 I Prohibited Prohibited
• Vinyl fluoride, stabilized · USPSVinyl fluoride, stabilized 2.1 UN1860 n/a Prohibited 2A
• Vinyl isobutyl ether, stabilized · USPSVinyl isobutyl ether, stabilized 3 UN1304 II Prohibited 3A
• Vinyl methyl ether, stabilized · USPSVinyl methyl ether, stabilized 2.1 UN1087 n/a Prohibited 2A
• Vinyl nitrate polymer · USPSVinyl nitrate polymer Forbidden Prohibited Prohibited Prohibited Prohibited
• Vinylidene chloride, stabilized · USPSVinylidene chloride, stabilized 3 UN1303 I Prohibited 3A
• Vinylpyridines, stabilized · USPSVinylpyridines, stabilized 6.1 UN3073 II Prohibited Prohibited
• Vinyltoluenes, stabilized · USPSVinyltoluenes, stabilized 3 UN2618 III Prohibited 3A
• Vinyltrichlorosilane, stabilized · USPSVinyltrichlorosilane, stabilized 3 UN1305 I Prohibited Prohibited
• Warheads, rocket with burster or expelling charge · USPSWarheads, rocket with burster or expelling charge 1.4D UN0370 II Prohibited Prohibited
• Warheads, rocket with bursting charge · USPSWarheads, rocket with bursting charge 1.1D UN0286 II Prohibited Prohibited
• Warheads, torpedo with bursting charge · USPSWarheads, torpedo with bursting charge 1.1D UN0221 II Prohibited Prohibited
• warm-blooded animals (cats, dogs, guinea pigs, hamsters, mice, rabbits, rats, squirrels) · USPSWarm-blooded animals, except for adult birds and specified day-old birds under the specific conditions in this section, are not mailable.
• Waste, dirt, filth or refuse · Royal Mail / Post OfficeWaste, dirt, filth or refuse (including household waste) International – not allowed in the mail UK – not allowed in the mail Soil samples sent for analysis are permitted provided
• Waste, dirt, filth or refuse · Royal Mail Wholesale (Access customers)Waste, dirt, filth or refuse Including household waste or rubbish.
• Watches valued over US$1000 · FedExWatches valued over US$1000
• Water-based paints, wood varnishes and enamels · Royal Mail / Post OfficeWater-based paints, wood varnishes and enamels International & UK – allowed in the mail, see restrictions and packaging guidelines below: Volume per item should not exceed 150ml Th
• Water-based paints, wood varnishes and enamels (counter guidance) · Royal Mail / ParcelforceWater-based paints, wood varnishes and enamels International & UK - Allowed in the mail, see restrictions and packaging guidelines below: Volume per item should not exceed 150ml.
• Water-reactive liquid, corrosive, n.o.s. · USPS · IWater-reactive liquid, corrosive, n.o.s. 4.3 UN3129 I Prohibited Prohibited
• Water-reactive liquid, corrosive, n.o.s. · USPS · II, IIIWater-reactive liquid, corrosive, n.o.s. 4.3 UN3129 II, III Prohibited 4A
• Water-reactive liquid, n.o.s. · USPSWater-reactive liquid, n.o.s. 4.3 UN3148 I, II, III Prohibited Prohibited
• Water-reactive liquid, toxic, n.o.s. · USPSWater-reactive liquid, toxic, n.o.s. 4.3 UN3130 I, II, III Prohibited Prohibited
• Water-reactive solid, corrosive, n.o.s. · USPS · IWater-reactive solid, corrosive, n.o.s. 4.3 UN3131 I Prohibited Prohibited
• Water-reactive solid, corrosive, n.o.s. · USPS · II, IIIWater-reactive solid, corrosive, n.o.s. 4.3 UN3131 II, III Prohibited 4A
• Water-reactive solid, flammable, n.o.s. · USPS · IWater-reactive solid, flammable, n.o.s. 4.3 UN3132 I Prohibited Prohibited
• Water-reactive solid, flammable, n.o.s. · USPS · II, IIIWater-reactive solid, flammable, n.o.s. 4.3 UN3132 II, III Prohibited 4A
• Water-reactive solid, n.o.s. · USPS · IWater-reactive solid, n.o.s. 4.3 UN2813 I Prohibited Prohibited
• Water-reactive solid, n.o.s. · USPS · II, IIIWater-reactive solid, n.o.s. 4.3 UN2813 II, III Prohibited 4A
• Water-reactive solid, oxidizing, n.o.s. · USPSWater-reactive solid, oxidizing, n.o.s. 4.3 UN3133 II, III Prohibited Prohibited
• Water-reactive solid, self-heating, n.o.s. · USPSWater-reactive solid, self-heating, n.o.s. 4.3 UN3135 I, II, III Prohibited Prohibited
• Water-reactive solid, toxic, n.o.s. · USPS · IWater-reactive solid, toxic, n.o.s. 4.3 UN3134 I Prohibited Prohibited
• Water-reactive solid, toxic, n.o.s. · USPS · II, IIIWater-reactive solid, toxic, n.o.s. 4.3 UN3134 II, III Prohibited 4A
• Waxes and polishes (flammable or combustible liquid) · USPSWaxes and Polishes: Considered flammable or combustible liquids with varying flashpoints. It is mailable if they qualify as Limited Quantity surface materials
• Weapons · Royal Mail / Post OfficeWeapons (including Section 5 firearms, CS gas and pepper sprays, flick knives and other knives that are banned under UK laws, tasers and stun guns) Items that appear to be prohibit
• Weapons · Royal Mail Wholesale (Access customers)Weapons Including Section 5 firearms, CS gas and pepper sprays, flick knives, tasers and stun
• Weapons and weapons accessories · FedExWeapons and weapons accessories
• Weapons (items made or adapted to cause injury) · Royal Mail / ParcelforceIncludes items made for the sole purpose of causing injury to a person, items adapted for use to cause injury to a person, and any item intended by the person sending or receiving
• White asbestos (chrysotile, actinolite, anthophyllite, tremolite) · USPSWhite asbestos (chrysotile, actinolite, anthophyllite, tremolite) 9 UN2590 III Prohibited 9C
• Wood preservatives, liquid · USPSWood preservatives, liquid 3 UN1306 II, III Prohibited 3A
• Wool waste, wet · USPSWool waste, wet 4.2 UN1387 III Prohibited Prohibited
• Worked ivory, bone, tortoiseshell, horn, antlers and mother of pearl · International mail to the United Kingdom (UPU list)Worked ivory; bone; tortoiseshell; horn; antlers; mother of pearl and other animal carving material and articles of these materials (including articles obtained by moulding; works
• Xanthates · USPSXanthates 4.2 UN3342 II, III Prohibited Prohibited
• Xenon, compressed · USPSXenon, compressed 2.2 UN2036 n/a 2B 2B
• Xenon, refrigerated liquid (cryogenic liquids) · USPSXenon, refrigerated liquid (cryogenic liquids) 2.2 UN2591 n/a Prohibited Prohibited
• Xylenes · USPSXylenes 3 UN1307 II, III Prohibited Prohibited
• Xylenols, liquid · USPSXylenols, liquid 6.1 UN3430 II Prohibited Prohibited
• Xylenols, solid · USPSXylenols, solid 6.1 UN2261 II Prohibited Prohibited
• Xylidines, liquid · USPSXylidines, liquid 6.1 UN1711 II Prohibited Prohibited
• Xylidines, solid · USPSXylidines, solid 6.1 UN3452 II Prohibited Prohibited
• Xylyl bromide, liquid · USPSXylyl bromide, liquid 6.1 UN1701 II Prohibited Prohibited
• Xylyl bromide, solid · USPSXylyl bromide, solid 6.1 UN3417 II Prohibited Prohibited
• Zinc ammonium nitrate · USPSZinc ammonium nitrate.
• Zinc ammonium nitrite · USPSZinc ammonium nitrite 5.1 UN1512 II Prohibited Prohibited
• Zinc arsenate or Zinc arsenite or Zinc arsenate and zinc arsenite mixtures · USPSZinc arsenate or Zinc arsenite or Zinc arsenate and zinc arsenite mixtures 6.1 UN1712 II Prohibited Prohibited
• Zinc ashes · USPSZinc ashes 4.3 UN1435 III Prohibited 4A
• Zinc bromate · USPSZinc bromate 5.1 UN2469 III 5A 5A
• Zinc chlorate · USPSZinc chlorate 5.1 UN1513 II 5A 5A
• Zinc chloride, anhydrous · USPSZinc chloride, anhydrous 8 UN2331 III Prohibited Prohibited
• Zinc chloride, solution · USPSZinc chloride, solution 8 UN1840 III 8A 8A
• Zinc cyanide · USPSZinc cyanide 6.1 UN1713 I Prohibited Prohibited
• Zinc dithionite or Zinc hydrosulfite · USPSZinc dithionite or Zinc hydrosulfite 9 UN1931 III Prohibited 9C
• Zinc fluorosilicate · USPSZinc fluorosilicate 6.1 UN2855 III 6A 6A
• Zinc nitrate · USPSZinc nitrate 5.1 UN1514 II 5A 5A
• Zinc permanganate · USPSZinc permanganate 5.1 UN1515 II 5A 5A
• Zinc peroxide · USPSZinc peroxide 5.1 UN1516 II 5A 5A
• Zinc phosphide · USPSZinc phosphide 4.3 UN1714 I Prohibited Prohibited
• Zinc powder or Zinc dust · USPSZinc powder or Zinc dust 4.3 UN1436 I, II, III Prohibited Prohibited
• Zinc resinate · USPSZinc resinate 4.1 UN2714 III Prohibited 4A
• Zirconium, dry, finished sheets, strip or coiled wire · USPSZirconium, dry, finished sheets, strip or coiled wire 4.2 UN2009 III Prohibited Prohibited
• Zirconium hydride · USPSZirconium hydride 4.1 UN1437 II Prohibited Prohibited
• Zirconium nitrate · USPSZirconium nitrate 5.1 UN2728 III 5A 5A
• Zirconium picramate, dry or wetted with less than 20 percent water, by mass · USPSZirconium picramate, dry or wetted with less than 20 percent water, by mass 1.3C UN0236 II Prohibited Prohibited
• Zirconium picramate, wetted with not less than 20 percent water, by mass · USPSZirconium picramate, wetted with not less than 20 percent water, by mass 4.1 UN1517 I Prohibited Prohibited
• Zirconium powder, dry · USPSZirconium powder, dry 4.2 UN2008 I, II, III Prohibited Prohibited
• Zirconium scrap · USPSZirconium scrap 4.2 UN1932 III Prohibited Prohibited
• Zirconium suspended in a liquid · USPS · I, IIZirconium suspended in a liquid 3 UN1308 I, II Prohibited Prohibited
• Zirconium suspended in a liquid · USPS · IIIZirconium suspended in a liquid 3 UN1308 III Prohibited 3A
• Zirconium tetrachloride · USPSZirconium tetrachloride 8 UN2503 III 8A 8A

← records 2,401–2,800 · All of What can be mailed: USPS hazardous materials, plus item rules for post and couriers