Records 401–800 — What can be mailed: USPS hazardous materials, plus item rules for post and couriers
Records 401 to 800 of 3,068. Each links to its own page, which carries the source URL and the quoted line that states the value.
- Azidoethyl nitrate · USPSAzidoethyl nitrate Forbidden Prohibited Prohibited Prohibited Prohibited
- Azodicarbonamide · USPSAzodicarbonamide 4.1 UN3242 II Prohibited 4A
- Azotetrazole (dry) · USPSAzotetrazole (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
- Balloons filled with non-flammable gases · Royal Mail / ParcelforceRoyal Mail - Balloons filled with non-flammable gases are not allowed on International Airmail routes. For UK destinations, balloons filled with non-flammable gases are permitted b
- Balloons filled with non-flammable gases · Royal Mail / Post OfficeBalloons filled with non-flammable gases International – not allowed in the mail UK – allowed in the mail, with restrictions and packaging guidelines below: Must be clearly marked
- Barium · USPSBarium 4.3 UN1400 II Prohibited 4A
- Barium alloys, pyrophic · USPSBarium alloys, pyrophic 4.2 UN1854 I Prohibited Prohibited
- Barium azide, dry or wetted with less than 50 percent water, by mass · USPSBarium azide, dry or wetted with less than 50 percent water, by mass 1.1A UN0224 II Prohibited Prohibited
- Barium azide, wetted with not less than 50 percent water, by mass · USPSBarium azide, wetted with not less than 50 percent water, by mass 4.1 UN1571 I Prohibited Prohibited
- Barium bromate · USPSBarium bromate 5.1 UN2719 II Prohibited Prohibited
- Barium chlorate, solid · USPSBarium chlorate, solid 5.1 UN1445 II Prohibited Prohibited
- Barium chlorate, solution · USPSBarium chlorate, solution 5.1 UN3405 II Prohibited Prohibited
- Barium compounds, n.o.s. · USPS · IIBarium compounds, n.o.s. 6.1 UN1564 II Prohibited Prohibited
- Barium compounds, n.o.s. · USPS · IIIBarium compounds, n.o.s. 6.1 UN1564 III 6A 6A
- Barium cyanide · USPSBarium cyanide 6.1 UN1565 I Prohibited Prohibited
- Barium hypochlorite with more than 22 percent available chlorine · USPSBarium hypochlorite with more than 22 percent available chlorine 5.1 UN2741 II 5A 5A
- Barium nitrate · USPSBarium nitrate 5.1 UN1446 II Prohibited Prohibited
- Barium oxide · USPSBarium oxide 6.1 UN1884 III 6A 6A
- Barium perchlorate, solid · USPSBarium perchlorate, solid 5.1 UN1447 II Prohibited Prohibited
- Barium perchlorate, solution · USPSBarium perchlorate, solution 5.1 UN3406 II, III Prohibited Prohibited
- Barium permanganate · USPSBarium permanganate 5.1 UN1448 II Prohibited Prohibited
- Barium peroxide · USPSBarium peroxide 5.1 UN1449 II Prohibited Prohibited
- Barium styphnate · USPSBarium styphnate 1.1A NA0473 II Prohibited Prohibited
- Batteries classed as dangerous goods (lithium ion/polymer/metal/alloy, lead acid) · Royal Mail Wholesale (Access customers)Batteries that are classed as dangerous goods by the latest edition of the International Civil Aviation Organization’s (ICAO) Technical Instructions are prohibited. This includes l
- Batteries, containing sodium · USPSBatteries, containing sodium 4.3 UN3292 II Prohibited Prohibited
- Batteries, dry, containing potassium hydroxide solid, electric, storage · USPSBatteries, dry, containing potassium hydroxide solid, electric, storage 8 UN3028 III Prohibited Prohibited
- Batteries, wet, filled with acid, electric storage · USPSBatteries, wet, filled with acid, electric storage 8 UN2794 III Prohibited Prohibited
- Batteries, wet, filled with alkali,electric storage · USPSBatteries, wet, filled with alkali,electric storage 8 UN2795 III Prohibited Prohibited
- Batteries, wet, nonspillable, electric storage · USPSBatteries, wet, nonspillable, electric storage 8 UN2800 III 8B 8B
- Batteries with liquid electrolyte (UN2794, UN2795) · USPSBatteries with Liquid Electrolyte (UN2794, UN2795): Includes automobile lead acid batteries, except for the non-spillable type permitted under 348.22.
- Battery fluid, acid · USPSBattery fluid, acid 8 UN2796 II 8A 8A
- Battery fluid, alkali · USPSBattery fluid, alkali 8 UN2797 II 8A 8A
- Battery-powered vehicle or Battery- powered equipment · USPSBattery-powered vehicle or Battery- powered equipment 9 UN3171 n/a Prohibited Prohibited
- Benzaldehyde · USPSBenzaldehyde 9 UN1990 III 9C 9C
- Benzene · USPSBenzene 3 UN1114 II Prohibited 3A
- Benzene diazonium chloride (dry) · USPSBenzene diazonium chloride (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
- Benzene diazonium nitrate (dry) · USPSBenzene diazonium nitrate (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
- Benzene sulfonyl chloride · USPSBenzene sulfonyl chloride 8 UN2225 III 8A 8A
- Benzene triozonide · USPSBenzene triozonide Forbidden Prohibited Prohibited Prohibited Prohibited
- Benzidine · USPSBenzidine 6.1 UN1885 II Prohibited Prohibited
- Benzonitrile · USPSBenzonitrile 6.1 UN2224 II Prohibited Prohibited
- Benzoquinone · USPSBenzoquinone 6.1 UN2587 II Prohibited Prohibited
- Benzotrichloride · USPSBenzotrichloride 8 UN2226 II 8A 8A
- Benzotrifluoride · USPSBenzotrifluoride 3 UN2338 II Prohibited 3A
- Benzoxidiazoles (dry) · USPSBenzoxidiazoles (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
- Benzoyl azide · USPSBenzoyl azide Forbidden Prohibited Prohibited Prohibited Prohibited
- Benzoyl chloride · USPSBenzoyl chloride 8 UN1736 II 8A 8A
- Benzyl bromide · USPSBenzyl bromide 6.1 UN1737 II Prohibited Prohibited
- Benzyl chloride · USPSBenzyl chloride 6.1 UN1738 II Prohibited Prohibited
- Benzyl chloride unstabilized · USPSBenzyl chloride unstabilized 6.1 UN1738 II Prohibited Prohibited
- Benzyl chloroformate · USPSBenzyl chloroformate 8 UN1739 I Prohibited Prohibited
- Benzyl iodide · USPSBenzyl iodide 6.1 UN2653 II Prohibited Prohibited
- Benzyldimethylamine · USPSBenzyldimethylamine 8 UN2619 II 8A 8A
- Benzylidene chloride · USPSBenzylidene chloride 6.1 UN1886 II Prohibited Prohibited
- Beryllium compounds, n.o.s. · USPS · IIBeryllium compounds, n.o.s. 6.1 UN1566 II Prohibited Prohibited
- Beryllium compounds, n.o.s. · USPS · IIIBeryllium compounds, n.o.s. 6.1 UN1566 III 6A 6A
- Beryllium nitrate · USPSBeryllium nitrate 5.1 UN2464 II Prohibited Prohibited
- Beryllium, powder · USPSBeryllium, powder 6.1 UN1567 II Prohibited Prohibited
- Beta-Naphthylamine, solid · USPSBeta-Naphthylamine, solid 6.1 UN1650 II Prohibited Prohibited
- Beta-Naphthylamine, solution · USPSBeta-Naphthylamine, solution 6.1 UN3411 II, III Prohibited Prohibited
- Bicyclo [2,2,1] hepta-2, 5-diene, stabilized or 2,5-Norbornadiene, stabilized · USPSBicyclo [2,2,1] hepta-2, 5-diene, stabilized or 2,5-Norbornadiene, stabilized 3 UN2251 II Prohibited 3A
- Biological agents, etiological agents, and hosts and vectors of human disease · FedExBiological agents, etiological agents, and hosts and vectors of human disease
- Biological products exceeding 4 liters or 4 kg containing Category A · USPSBiological Products and Specimens: Biological products, cultures, stocks, or other biological specimens known or suspected to contain a Category A infectious substance. Mailpieces
- Biological products or medical preparations in nonrefillable metal containers · USPSBiological Products or Medical Preparations: Nonflammable solutions containing biological or medical products in nonrefillable metal containers preparation that heat could deterior
- Biological Substance, Category B · UPSUPS accepts Packages containing Biological Substance, Category B as defined in 49 C.F.R. § 173.134, which are prepared in accordance with all aspects of 49 C.F.R. § 173.199.
- Biological substance, Category B · USPSBiological substance, Category B 6.2 UN3373 n/a 6C 6C
- Biological substances (Category B) · Royal Mail / Post OfficeBiological substances (Category B) (diagnostic specimens including urine, blood, faeces and animal remains) International – not allowed in the mail UK – allowed in the mail, with r
- Biological substances (diagnostic specimens) · Royal Mail / ParcelforcePackaging guidelines: The total sample volume/mass in any parcel must not exceed 50ml/50g. All biological substances must be posted in packaging that complies with Packaging Instru
- Biologics (vaccines, blood and blood components, antitoxins, human tissues) · International mail to the United States (UPU list)Biologics Biologic & Licensed In-Vivo & In-Vitro Diagnostics; Allergenic Products; Antitoxins & Antivenins; Bacterial Vaccines/Antigens; Blood & Blood Components
- Biphenyl triozonide · USPSBiphenyl triozonide Forbidden Prohibited Prohibited Prohibited Prohibited
- Bipyridilium pesticides, liquid, flammable, toxic, flashpoint less than 23° C · USPSBipyridilium pesticides, liquid, flammable, toxic, flashpoint less than 23° C 3 UN2782 I, II Prohibited Prohibited
- Bipyridilium pesticides, liquid, toxic · USPS · I, IIBipyridilium pesticides, liquid, toxic 6.1 UN3016 I, II Prohibited Prohibited
- Bipyridilium pesticides, liquid, toxic · USPS · IIIBipyridilium pesticides, liquid, toxic 6.1 UN3016 III 6A 6A
- Bipyridilium pesticides, liquid, toxic, flammable, flashpoint not less than 23° C · USPS · I, IIBipyridilium pesticides, liquid, toxic, flammable, flashpoint not less than 23° C 6.1 UN3015 I, II Prohibited Prohibited
- Bipyridilium pesticides, liquid, toxic, flammable, flashpoint not less than 23° C · USPS · IIIBipyridilium pesticides, liquid, toxic, flammable, flashpoint not less than 23° C 6.1 UN3015 III 6A 6A
- Bipyridilium pesticides, solid, toxic · USPS · I, IIBipyridilium pesticides, solid, toxic 6.1 UN2781 I, II Prohibited Prohibited
- Bipyridilium pesticides, solid, toxic · USPS · IIIBipyridilium pesticides, solid, toxic 6.1 UN2781 III 6A 6A
- Bisulfate, aqueous solution · USPSBisulfate, aqueous solution 8 UN2837 II, III 8A 8A
- Bisulfites, aqueous solutions, n.o.s. · USPSBisulfites, aqueous solutions, n.o.s. 8 UN2693 III 8A 8A
- Black powder for small arms · USPSBlack powder for small arms 4.1 NA0027 I Prohibited Prohibited
- Black powder or Gunpowder, granular or as a meal · USPSBlack powder or Gunpowder, granular or as a meal 1.1D UN0027 II Prohibited Prohibited
- Bladed items · Royal Mail / ParcelforceRoyal Mail: cannot be sent via a Post Office counter. Visit www.royalmail.com for full details including how restricted items can be sent. Parcelforce Worldwide: Prohibited from al
- Bladed items · Royal Mail / Post OfficeBladed items Bladed articles and bladed products as defined by the Offensive Weapons Act 2019, including but not limited to, any knife (including a folding pocket knife), any knife
- Bladed items (knives, axes, swords, machetes, open razors) · International mail to the United Kingdom (UPU list)antique knives, handmade and bespoke knives, open razors (where the blade is exposed), any axe, any sword, survival knives, or machete. Any knife or knife blade, including cutlery
- Blood for transfusion containing Category A infectious substance · USPSBlood for Transfusion: Blood collected for transfusion and known or suspected to contain a Category A infectious substance.
- Blue asbestos (Crocidolite) or Brown asbestos (amosite, mysorite) · USPSBlue asbestos (Crocidolite) or Brown asbestos (amosite, mysorite) 9 UN2212 II Prohibited 9C
- Bombs, photo-flash · USPSBombs, photo-flash 1.1F UN0037 II Prohibited Prohibited
- Bombs, smoke, non-explosive, with corrosive liquid, without initiating device · USPSBombs, smoke, non-explosive, with corrosive liquid, without initiating device 8 UN2028 II Prohibited Prohibited
- Bombs, with bursting charge · USPSBombs, with bursting charge 1.1F UN0033 II Prohibited Prohibited
- Bombs with flammable liquid, with bursting charge · USPSBombs with flammable liquid, with bursting charge 1.1J UN0399 II Prohibited Prohibited
- Boosters with detonator · USPSBoosters with detonator 1.1B UN0225 II Prohibited Prohibited
- Boosters, without detonator · USPSBoosters, without detonator 1.1D UN0042 II Prohibited Prohibited
- Borneol · USPSBorneol 4.1 UN1312 III Prohibited Prohibited
- Boron tribromide · USPSBoron tribromide 8 UN2692 I Prohibited Prohibited
- Boron trichloride · USPSBoron trichloride 2.3 UN1741 n/a Prohibited Prohibited
- Boron trifluoride · USPSBoron trifluoride 2.3 UN1008 n/a Prohibited Prohibited
- Boron trifluoride acetic acid complex, liquid · USPSBoron trifluoride acetic acid complex, liquid 8 UN1742 II 8A 8A
- Boron trifluoride acetic acid complex, solid · USPSBoron trifluoride acetic acid complex, solid 8 UN3419 II 8A 8A
- Boron trifluoride diethyl etherate · USPSBoron trifluoride diethyl etherate 8 UN2604 I Prohibited Prohibited
- Boron trifluoride dihydrate · USPSBoron trifluoride dihydrate 8 UN2851 II 8A 8A
- Boron trifluoride dimethyl etherate · USPSBoron trifluoride dimethyl etherate 4.3 UN2965 I Prohibited Prohibited
- Boron trifluoride propionic acid complex, liquid · USPSBoron trifluoride propionic acid complex, liquid 8 UN1743 II 8A 8A
- Boron trifluoride propionic acid complex, solid · USPSBoron trifluoride propionic acid complex, solid 8 UN3420 II 8A 8A
- Bowel screening samples · International mail to the United Kingdom (UPU list)UNITED KINGDOM GB P Bowel screening samples
- Bromates, inorganic, aqueous solution, n.o.s. · USPSBromates, inorganic, aqueous solution, n.o.s. 5.1 UN3213 II 5A 5A
- Bromates, inorganic, n.o.s. · USPSBromates, inorganic, n.o.s. 5.1 UN1450 II 5A 5A
- Bromine azide · USPSBromine azide Forbidden Prohibited Prohibited Prohibited Prohibited
- Bromine chloride · USPSBromine chloride 2.3 UN2901 Prohibited Prohibited Prohibited
- Bromine or Bromine solutions · USPSBromine or Bromine solutions 8 UN1744 I Prohibited Prohibited
- Bromine pentafluoride · USPSBromine pentafluoride 5.1 UN1745 I Prohibited Prohibited
- Bromine trifluoride · USPSBromine trifluoride 5.1 UN1746 I Prohibited Prohibited
- Bromoacetic acid, solid · USPSBromoacetic acid, solid 8 UN3425 II 8A 8A
- Bromoacetic acid, solution · USPSBromoacetic acid, solution 8 UN1938 II 8A 8A
- Bromoacetone · USPSBromoacetone 6.1 UN1569 II Prohibited Prohibited
- Bromoacetyl bromide · USPSBromoacetyl bromide 8 UN2513 II 8A 8A
- Bromobenzene · USPSBromobenzene 3 UN2514 III Prohibited 3A
- Bromobenzyl cyanides, liquid · USPSBromobenzyl cyanides, liquid 6.1 UN1694 I Prohibited Prohibited
- Bromobenzyl cyanides, solid · USPSBromobenzyl cyanides, solid 6.1 UN3449 I Prohibited Prohibited
- Bromochloromethane · USPSBromochloromethane 6.1 UN1887 III 6A 6A
- Bromoform · USPSBromoform 6.1 UN2515 III 6A 6A
- Bromomethylpropanes · USPSBromomethylpropanes 3 UN2342 II Prohibited 3A
- Bromopropanes · USPSBromopropanes 3 UN2344 II, III Prohibited 3A
- Bromosilane · USPSBromosilane Forbidden Prohibited Prohibited Prohibited Prohibited
- Bromotrifluoroethylene · USPSBromotrifluoroethylene 2.1 UN2419 n/a Prohibited Prohibited
- Bromotrifluoromethane or Refrigerant gas, R 13B1 · USPSBromotrifluoromethaneorRefrigerant gas, R 13B1 2.2 UN1009 n/a 2B 2B
- BromotrifluoromethaneorRefrigerant gas, R 13B1 · USPSBromotrifluoromethaneorRefrigerant gas, R 13B1 2.2 UN1009 n/a 2B 2B
- Brucine · USPSBrucine 6.1 UN1570 I Prohibited Prohibited
- Bullion · DHLBullion of any precious metal
- Bullion and money of every description · FedExBullion and money of every description such as (but without prejudice to the generality of this clause) cash, bank notes, coins, currency notes or currency of any kind
- Bursters, explosive · USPSBursters, explosive 1.1D UN0043 II Prohibited Prohibited
- Butane see also Petroleum gases, liquified · USPSButane see also Petroleum gases, liquified 2.1 UN1011 n/a Prohibited 2A
- Butane (UN1011) — Division 2.1 flammable gas · USPSButane (UN1011): Division 2.1 flammable gases. Butane or butane mixtures are mailable via surface transportation as Limited Quantity materials
- Butanedione · USPSButanedione 3 UN2346 II Prohibited 3A
- Butanols · USPSButanols 3 UN1120 II, III Prohibited 3A
- Butyl acetates · USPSButyl acetates 3 UN1123 II, III Prohibited 3A
- Butyl acid phosphate · USPSButyl acid phosphate 8 UN1718 III 8A 8A
- Butyl acrylates, stabilized · USPSButyl acrylates, stabilized 3 UN2348 III Prohibited 3A
- Butyl benzenes · USPSButyl benzenes 3 UN2709 III Prohibited 3A
- Butyl mercaptans · USPSButyl mercaptans 3 UN2347 II Prohibited 3A
- Butyl methyl ether · USPSButyl methyl ether 3 UN2350 II Prohibited 3A
- Butyl nitrites · USPSButyl nitrites 3 UN2351 I, II, III Prohibited 3A
- Butyl propionates · USPSButyl propionates 3 UN1914 III Prohibited 3A
- Butyl vinyl ether, stabilized · USPSButyl vinyl ether, stabilized 3 UN2352 II Prohibited 3A
- Butylene see also Petroleum gases, liquified · USPSButylene see also Petroleum gases, liquified 2.1 UN1012 n/a Prohibited Prohibited
- Butyltoluenes · USPSButyltoluenes 6.1 UN2667 III 6A 6A
- Butyltrichlorosilane · USPSButyltrichlorosilane 8 UN1747 II Prohibited Prohibited
- Butyraldehyde · USPSButyraldehyde 3 UN1129 II Prohibited 3A
- Butyraldoxime · USPSButyraldoxime 3 UN2840 III Prohibited 3A
- Butyric acid · USPSButyric acid 8 UN2820 III 8A 8A
- Butyric anhydride · USPSButyric anhydride 8 UN2739 III 8A 8A
- Butyronitrile · USPSButyronitrile 3 UN2411 II Prohibited Prohibited
- Butyryl chloride · USPSButyryl chloride 3 UN2353 II Prohibited Prohibited
- Cacodylic acid · USPSCacodylic acid 6.1 UN1572 II Prohibited Prohibited
- Cadmium compounds · USPS · I, IICadmium compounds 6.1 UN2570 I, II Prohibited Prohibited
- Cadmium compounds · USPS · IIICadmium compounds 6.1 UN2570 III 6A 6A
- Caesium hydroxide · USPSCaesium hydroxide 8 UN2682 II 8A 8A
- Caesium hydroxide solution · USPSCaesium hydroxide solution 8 UN2681 II, III 8A 8A
- Calcium · USPSCalcium 4.3 UN1401 II Prohibited 4A
- Calcium arsenate · USPSCalcium arsenate 6.1 UN1573 II Prohibited Prohibited
- Calcium arsenate and calcium arsenite, mixtures, solid · USPSCalcium arsenate and calcium arsenite, mixtures, solid 6.1 UN1574 II Prohibited Prohibited
- Calcium arsenite, solid · USPSCalcium arsenite, solid 6.1 NA1574 II Prohibited Prohibited
- Calcium carbide · USPS · ICalcium carbide 4.3 UN1402 I Prohibited Prohibited
- Calcium carbide · USPS · IICalcium carbide 4.3 UN1402 II Prohibited 4A
- Calcium chlorate · USPSCalcium chlorate 5.1 UN1452 II 5A 5A
- Calcium chlorate aqueous solution · USPSCalcium chlorate aqueous solution 5.1 UN2429 II, III 5A 5A
- Calcium chlorite · USPSCalcium chlorite 5.1 UN1453 II 5A 5A
- Calcium cyanamide with more than 0.1 percent of calcium carbide · USPSCalcium cyanamide with more than 0.1 percent of calcium carbide 4.3 UN1403 III Prohibited 4A
- Calcium cyanide · USPSCalcium cyanide 6.1 UN1575 I Prohibited Prohibited
- Calcium dithionite or Calcium hydrosulfite · USPSCalcium dithionite or Calcium hydrosulfite 4.2 UN1923 II Prohibited Prohibited
- Calcium hydride · USPSCalcium hydride 4.3 UN1404 I Prohibited Prohibited
- Calcium manganese silicon · USPSCalcium manganese silicon 4.3 UN2844 III Prohibited 4A
- Calcium nitrate · USPSCalcium nitrate 5.1 UN1454 III 5A 5A
- Calcium oxide · USPSCalcium oxide 8 UN1910 III 8A 8A
- Calcium perchlorate · USPSCalcium perchlorate 5.1 UN1455 II 5A 5A
- Calcium permanganate · USPSCalcium permanganate 5.1 UN1456 II 5A 5A
- Calcium peroxide · USPSCalcium peroxide 5.1 UN1457 II 5A 5A
- Calcium phosphide · USPSCalcium phosphide 4.3 UN1360 I Prohibited Prohibited
- Calcium, pyrophoric or Calcium alloys, pyrophoric · USPSCalcium, pyrophoric or Calcium alloys, pyrophoric 4.2 UN1855 I Prohibited Prohibited
- Calcium resinate · USPSCalcium resinate 4.1 UN1313 III Prohibited Prohibited
- Calcium resinate, fused · USPSCalcium resinate, fused 4.1 UN1314 III Prohibited Prohibited
- Calcium silicide · USPSCalcium silicide 4.3 UN1405 II, III Prohibited 4A
- Camphor oil · USPSCamphor oil 3 UN1130 III Prohibited 3A
- Camphor, synthetic · USPSCamphor, synthetic 4.1 UN2717 III Prohibited Prohibited
- Canned heat (Sterno) · USPSCanned Heat (Sterno): Considered a flammable liquid and typically has a flashpoint between 40° F (4° C) and 80° F (27° C). It is mailable if it qualifies as a Limited Quantity surf
- Caproic acid · USPSCaproic acid 8 UN2829 III 8A 8A
- Car parts · Royal Mail / Post OfficeCar parts Car parts, panels, doors, bumpers and bonnets are prohibited using Parcelforce Worldwide services. Other car parts are acceptable as long as Parcelforce Worldwide packagi
- Carbamate pesticide, liquid, toxic, flammable, flashpoint not less than 23° C · USPS · I, IICarbamate pesticide, liquid, toxic, flammable, flashpoint not less than 23° C 6.1 UN2991 I, II Prohibited Prohibited
- Carbamate pesticide, liquid, toxic, flammable, flashpoint not less than 23° C · USPS · IIICarbamate pesticide, liquid, toxic, flammable, flashpoint not less than 23° C 6.1 UN2991 III 6A 6A
- Carbamate pesticides, liquid, flammable, toxic, flashpoint less than 23° C · USPSCarbamate pesticides, liquid, flammable, toxic, flashpoint less than 23° C 3 UN2758 I, II Prohibited Prohibited
- Carbamate pesticides, liquid, toxic · USPS · I, IICarbamate pesticides, liquid, toxic 6.1 UN2992 I, II Prohibited Prohibited
- Carbamate pesticides, liquid, toxic · USPS · IIICarbamate pesticides, liquid, toxic 6.1 UN2992 III 6A 6A
- Carbamate pesticides, solid, toxic · USPS · I, IICarbamate pesticides, solid, toxic 6.1 UN2757 I, II Prohibited Prohibited
- Carbamate pesticides, solid, toxic · USPS · IIICarbamate pesticides, solid, toxic 6.1 UN2757 III 6A 6A
- Carbon, activated · USPSCarbon, activated 4.2 UN1362 III Prohibited Prohibited
- Carbon, animal or vegetable origin · USPSCarbon, animal or vegetable origin 4.2 UN1361 II, III Prohibited Prohibited
- Carbon dioxide · USPSCarbon dioxide 2.2 UN1013 n/a 2B 2B
- Carbon dioxide, refrigerated liquid · USPSCarbon dioxide, refrigerated liquid 2.2 UN2187 n/a 2B 2B
- Carbon dioxide, solid, or Dry ice · USPSCarbon dioxide, solid, or Dry ice 9 UN1845 III 9A 9A
- Carbon disulfide · USPSCarbon disulfide 3 UN1131 I Prohibited Prohibited
- Carbon monoxide, compressed · USPSCarbon monoxide, compressed 2.3 UN1016 n/a Prohibited Prohibited
- Carbon monoxide, refrigerated liquid (cryogenic liquid) · USPSCarbon monoxide, refrigerated liquid (cryogenic liquid) 2.3 NA9202 n/a Prohibited Prohibited
- Carbon tetrabromide · USPSCarbon tetrabromide 6.1 UN2516 III 6A 6A
- Carbon tetrachloride · USPSCarbon tetrachloride 6.1 UN1846 II Prohibited Prohibited
- Carbonated beverages · USPSCarbonated Beverages: These items are not regulated as hazardous materials and are mailable without restriction but must be properly packaged in accordance with DMM 601.
- Carbonyl fluoride · USPSCarbonyl fluoride 2.3 UN2417 n/a Prohibited Prohibited
- Carbonyl sulfide · USPSCarbonyl sulfide 2.3 UN2204 n/a Prohibited Prohibited
- Cartridges, flash · USPSCartridges, flash 1.1G UN0049 II Prohibited Prohibited
- Cartridges for weapons, blank · USPSCartridges for weapons, blank 1.1C UN0326 II Prohibited Prohibited
- Cartridges for weapons, blank or Cartridges, small arms, blank · USPSCartridges for weapons, blank or Cartridges, small arms, blank 1.3C UN0327 II Prohibited Prohibited
- Cartridges for weapons, inert projectile · USPSCartridges for weapons, inert projectile 1.2C UN0328 II Prohibited Prohibited
- Cartridges for weapons, inert projectile or Cartridges, small arms · USPSCartridges for weapons, inert projectile or Cartridges, small arms 1.3C UN0417 II Prohibited Prohibited
- Cartridges for weapons, with bursting charge · USPSCartridgesfor weapons, withbursting charge 1.1E UN0006 II Prohibited Prohibited
- Cartridges, oil well · USPSCartridges, oil well 1.3C UN0277 II Prohibited Prohibited
- Cartridges, power device · USPSCartridges, power device 1.2C UN0381 II Prohibited Prohibited
- Cartridges, signal · USPSCartridges, signal 1.3G UN0054 II Prohibited Prohibited
- Cartridgesfor weapons, withbursting charge · USPSCartridgesfor weapons, withbursting charge 1.1E UN0006 II Prohibited Prohibited
- Cases, cartridge, empty with primer · USPSCases, cartridge, empty with primer 1.4S UN0055 II Prohibited Prohibited
- Cases, cartridges, empty with primer · USPSCases, cartridges, empty with primer 1.4C UN0379 II Prohibited Prohibited
- Cases, combustible, empty, without primer · USPSCases, combustible, empty, without primer 1.4C UN0446 II Prohibited Prohibited
- Cash · DHLCash, including bank notes, currency notes, and coins
- Castor beans or Castor meal or Castor pomace or Castor flake · USPSCastor beans or Castor meal or Castor pomace or Castor flake 9 UN2969 II Prohibited 9C
- Category A infectious substances (UN2814, UN2900) · USPSCategory A: An infectious substance transported in a form capable of causing permanent disability or life-threatening or fatal disease in otherwise healthy humans or animals when e
- Category B infectious substances (UN3373) · USPSDomestic Mail: Infectious substances are mailable only when intended for medical or veterinary use, research, or laboratory certification related to public health, and must be prop
- Caustic alkali liquids, n.o.s. · USPSCaustic alkali liquids, n.o.s. 8 UN1719 II, III 8A 8A
- Cells, containing sodium · USPSCells, containing sodium 4.3 UN3292 II Prohibited Prohibited
- Celluloid, in block, rods, rolls, sheets, tubes, etc., except scrap · USPSCelluloid, in block, rods, rolls, sheets, tubes, etc., except scrap 4.1 UN2000 III Prohibited Prohibited
- Celluloid, scrap · USPSCelluloid, scrap 4.2 UN2002 III Prohibited Prohibited
- Cerium, slabs, ingots, or rods · USPSCerium, slabs, ingots, or rods 4.1 UN1333 II Prohibited Prohibited
- Cerium, turnings or gritty powder · USPSCerium, turnings or gritty powder 4.3 UN3078 II Prohibited 4A
- Certain high-value collectibles · DHLCertain high-value collectibles, such as comics, first-edition books, trading cards, stamps, and memorabilia
- Cesium nitrate or Caesium nitrate · USPSCesium nitrate or Caesium nitrate 5.1 UN1451 III 5A 5A
- Cesium or Caesium · USPSCesium or Caesium 4.3 UN1407 I Prohibited Prohibited
- Charcoal briquettes, shell, screenings, wood, etc. · USPSCharcoal briquettes, shell, screenings, wood, etc. 4.2 NA1361 III Prohibited 4A
- Charges, bursting, plastics bonded · USPSCharges, bursting, plastics bonded 1.1D UN0457 II Prohibited Prohibited
- Charges, demolition · USPSCharges, demolition 1.1D UN0048 II Prohibited Prohibited
- Charges, depth · USPSCharges, depth 1.1D UN0056 II Prohibited Prohibited
- Charges, explosive, commercial without detonator · USPSCharges, explosive, commercial without detonator 1.1D UN0442 II Prohibited Prohibited
- Charges, propelling · USPSCharges, propelling 1.1C UN0271 II Prohibited Prohibited
- Charges, propelling, for cannon · USPSCharges, propelling, for cannon 1.1C UN0279 II Prohibited Prohibited
- Charges, shaped, flexible, linear · USPSCharges, shaped, flexible, linear 1.1D UN0288 II Prohibited Prohibited
- Charges, shaped, without detonator · USPSCharges, shaped, without detonator 1.1D UN0059 II Prohibited Prohibited
- Charges, supplementary explosive · USPSCharges, supplementary explosive 1.1D UN0060 II Prohibited Prohibited
- Chemical kit · USPSChemical kit 8 NA1760 II 8A 8A
- Chemical kits · USPSChemical kits 9 UN3316 II, III 9C 9C
- Chemical under pressure, corrosive, n.o.s. · USPSChemical under pressure, corrosive, n.o.s. 2.1 UN3503 n/a Prohibited 2B
- Chemical under pressure, flammable, corrosive, n.o.s. · USPSChemical under pressure, flammable, corrosive, n.o.s. 2.1 UN3505 Prohibited Prohibited Prohibited
- Chemical under pressure, flammable, n.o.s. · USPSChemical under pressure, flammable, n.o.s. 2.1 UN3501 Prohibited Prohibited Prohibited
- Chemical under pressure, flammable, toxic, n.o.s. · USPSChemical under pressure, flammable, toxic, n.o.s. 2.1 UN3504 Prohibited Prohibited Prohibited
- Chemical under pressure, n.o.s · USPSChemical under pressure, n.o.s 2.2 UN3500 Prohibited Prohibited 2B
- Chemical under pressure, toxic, n.o.s · USPSChemical under pressure, toxic, n.o.s 2.2 UN3502 Prohibited Prohibited 2B
- Chloral, anhydrous, inhibited · USPSChloral, anhydrous, inhibited 6.1 UN2075 II Prohibited Prohibited
- Chlorate and borate mixtures · USPSChlorate and borate mixtures 5.1 UN1458 II, III 5A 5A
- Chlorate and magnesium chloride mixture solid · USPSChlorate and magnesium chloride mixture solid 5.1 UN1459 II 5A 5A
- Chlorate and magnesium chloride mixture solution · USPSChlorate and magnesium chloride mixture solution 5.1 UN3407 II, III 5A 5A
- Chlorates, inorganic, aqueous solutions, n.o.s. · USPSChlorates, inorganic, aqueous solutions, n.o.s. 5.1 UN3210 II, III 5A 5A
- Chlorates, inorganic, n.o.s. · USPSChlorates, inorganic, n.o.s. 5.1 UN1461 II 5A 5A
- Chloric acid aqueous solution, with not more than 10 percent chloric acid · USPSChloric acid aqueous solution, with not more than 10 percent chloric acid 5.1 UN2626 II Prohibited Prohibited
- Chlorine · USPSChlorine 2.3 UN1017 n/a Prohibited Prohibited
- Chlorine azide · USPSChlorine azide Forbidden Prohibited Prohibited Prohibited Prohibited
- Chlorine dioxide hydrate, frozen · USPSChlorine dioxide hydrate, frozen.
- Chlorine dioxide, hydrate, frozen · USPSChlorine dioxide, hydrate, frozen 5.1 NA9191 II Prohibited Prohibited
- Chlorine dioxide (not hydrate) · USPSChlorine dioxide (not hydrate) Forbidden Prohibited Prohibited Prohibited Prohibited
- Chlorine pentafluoride · USPSChlorine pentafluoride 2.3 UN2548 n/a Prohibited Prohibited
- Chlorine trifluoride · USPSChlorine trifluoride 2.3 UN1749 n/a Prohibited Prohibited
- Chlorite solution · USPSChlorite solution 8 UN1908 II, III 8A 8A
- Chlorites, inorganic, n.o.s. · USPSChlorites, inorganic, n.o.s. 5.1 UN1462 II 5A 5A
- Chloroacetic acid, molten · USPSChloroacetic acid, molten 6.1 UN3250 II Prohibited Prohibited
- Chloroacetic acid, solid · USPSChloroacetic acid, solid 6.1 UN1751 II Prohibited Prohibited
- Chloroacetic acid, solution · USPSChloroacetic acid, solution 6.1 UN1750 II Prohibited Prohibited
- Chloroacetone, stabilized · USPSChloroacetone, stabilized 6.1 UN1695 I Prohibited Prohibited
- Chloroacetone (unstabilized) · USPSChloroacetone (unstabilized) Forbidden Prohibited Prohibited Prohibited Prohibited
- Chloroacetonitrile · USPSChloroacetonitrile 6.1 UN2668 II Prohibited Prohibited
- Chloroacetophenone (CN), liquid · USPSChloroacetophenone (CN), liquid 6.1 UN3416 II Prohibited Prohibited
- Chloroacetophenone (CN), solid · USPSChloroacetophenone (CN), solid 6.1 UN1697 II Prohibited Prohibited
- Chloroacetyl chloride · USPSChloroacetyl chloride 6.1 UN1752 I Prohibited Prohibited
- Chloroanilines, liquid · USPSChloroanilines, liquid 6.1 UN2019 II Prohibited Prohibited
- Chloroanilines, solid · USPSChloroanilines, solid 6.1 UN2018 II Prohibited Prohibited
- Chloroanisidines · USPSChloroanisidines 6.1 UN2233 III 6A 6A
- Chlorobenzene · USPSChlorobenzene 3 UN1134 III Prohibited 3A
- Chlorobenzotrifluorides · USPSChlorobenzotrifluorides 3 UN2234 III Prohibited 3A
- Chlorobenzyl chlorides, liquid · USPSChlorobenzyl chlorides, liquid 6.1 UN2235 III 6A 6A
- Chlorobenzyl chlorides, solid · USPSChlorobenzyl chlorides, solid 6.1 UN3427 III 6A 6A
- Chlorobutanes · USPSChlorobutanes 3 UN1127 II Prohibited 3A
- Chlorocresols, solid · USPSChlorocresols, solid 6.1 UN3437 II Prohibited Prohibited
- Chlorocresols, solution · USPSChlorocresols, solution 6.1 UN2669 II, III Prohibited Prohibited
- Chlorodifluorobromomethane or Refrigerant gas R 12B1 · USPSChlorodifluorobromomethane or Refrigerant gas R 12B1 2.2 UN1974 n/a 2B 2B
- Chlorodifluoromethane or Refrigerant gas R 22 · USPSChlorodifluoromethane or Refrigerant gas R 22 2.2 UN1018 n/a 2B 2B
- Chlorodinitrobenzenes, liquid · USPSChlorodinitrobenzenes, liquid 6.1 UN1577 II Prohibited Prohibited
- Chlorodinitrobenzenes, solid · USPSChlorodinitrobenzenes, solid 6.1 UN3441 II Prohibited Prohibited
- Chloroform · USPSChloroform 6.1 UN1888 III 6A 6A
- Chloroformates, toxic, corrosive, flammable, n.o.s. · USPSChloroformates, toxic, corrosive, flammable, n.o.s. 6.1 UN2742 II Prohibited Prohibited
- Chloroformates, toxic, corrosive, n.o.s. · USPSChloroformates, toxic, corrosive, n.o.s. 6.1 UN3277 II Prohibited Prohibited
- Chloromethyl chloroformate · USPSChloromethyl chloroformate 6.1 UN2745 II Prohibited Prohibited
- Chloromethyl ethyl ether · USPSChloromethyl ethyl ether 3 UN2354 II Prohibited Prohibited
- Chloronitroanilines · USPSChloronitroanilines 6.1 UN2237 III 6A 6A
- Chloronitrobenzene, liquid · USPSChloronitrobenzene, liquid 6.1 UN3409 II Prohibited Prohibited
- Chloronitrobenzenes, solid · USPSChloronitrobenzenes, solid 6.1 UN1578 II Prohibited Prohibited
- Chloronitrotoluenes, liquid · USPSChloronitrotoluenes, liquid 6.1 UN2433 III 6A 6A
- Chloronitrotoluenes, solid · USPSChloronitrotoluenes, solid 6.1 UN3457 III 6A 6A
- Chloropentafluoroethane or Refrigerant gas R 115 · USPSChloropentafluoroethane or Refrigerant gas R 115 2.2 UN1020 n/a 2B 2B
- Chlorophenolates, liquid or Phenolates, liquid · USPSChlorophenolates, liquid or Phenolates, liquid 8 UN2904 III 8A 8A
- Chlorophenolates, solid or Phenolates, solid · USPSChlorophenolates, solid or Phenolates, solid 8 UN2905 III 8A 8A
- Chlorophenols, liquid · USPSChlorophenols, liquid 6.1 UN2021 III 6A 6A
- Chlorophenols, solid · USPSChlorophenols, solid 6.1 UN2020 III 6A 6A
- Chlorophenyltrichlorosilane · USPSChlorophenyltrichlorosilane 8 UN1753 II Prohibited Prohibited
- Chloropicrin · USPSChloropicrin 6.1 UN1580 I Prohibited Prohibited
- Chloropicrin and methyl bromide mixtures · USPSChloropicrin and methyl bromide mixtures 2.3 UN1581 n/a Prohibited Prohibited
- Chloropicrin and methyl chloride mixtures · USPSChloropicrin and methyl chloride mixtures 2.3 UN1582 n/a Prohibited Prohibited
- Chloropicrin mixtures, n.o.s. · USPSChloropicrin mixtures, n.o.s. 6.1 UN1583 I, II, III Prohibited Prohibited
- Chloropivaloyl chloride · USPSChloropivaloyl chloride 6.1 NA9263 I Prohibited Prohibited
- Chloroplatinic acid, solid · USPSChloroplatinic acid, solid 8 UN2507 III 8A 8A
- Chloroprene, stabilized · USPSChloroprene, stabilized 3 UN1991 I Prohibited Prohibited
- Chloroprene, uninhibited · USPSChloroprene, uninhibited Forbidden Prohibited Prohibited Prohibited Prohibited
- Chlorosilanes, corrosive, flammable, n.o.s. · USPSChlorosilanes, corrosive, flammable, n.o.s. 8 UN2986 II Prohibited Prohibited
- Chlorosilanes, corrosive, n.o.s. · USPSChlorosilanes, corrosive, n.o.s. 8 UN2987 II 8A 8A
- Chlorosilanes, flammable, corrosive, n.o.s. · USPSChlorosilanes, flammable, corrosive, n.o.s. 3 UN2985 II Prohibited Prohibited
- Chlorosilanes, toxic, corrosive, flammable, n.o.s. · USPSChlorosilanes, toxic, corrosive, flammable, n.o.s. 6.1 UN3362 II Prohibited Prohibited
- Chlorosilanes, toxic, corrosive, n.o.s. · USPSChlorosilanes, toxic, corrosive, n.o.s. 6.1 UN3361 II Prohibited Prohibited
- Chlorosilanes, water-reactive, flammable, corrosive, n.o.s. · USPSChlorosilanes, water-reactive, flammable, corrosive, n.o.s. 4.3 UN2988 I Prohibited Prohibited
- Chlorosulfonic acid (with or without sulfur trioxide) · USPSChlorosulfonic acid (with or without sulfur trioxide) 8 UN1754 I Prohibited Prohibited
- Chlorotoluenes · USPSChlorotoluenes 3 UN2238 III Prohibited 3A
- Chlorotoluidines, liquid · USPSChlorotoluidines, liquid 6.1 UN3429 III 6A 6A
- Chlorotoluidines, solid · USPSChlorotoluidines, solid 6.1 UN2239 III 6A 6A
- Chlorotrifluoromethane or Refrigerant gas R 13 · USPSChlorotrifluoromethaneorRefrigerant gas R 13 2.2 UN1022 n/a 2B 2B
- ChlorotrifluoromethaneorRefrigerant gas R 13 · USPSChlorotrifluoromethaneorRefrigerant gas R 13 2.2 UN1022 n/a 2B 2B
- Christmas crackers · Royal Mail / ParcelforceParcelforce Worldwide and BFPO - Christmas crackers are prohibited Royal Mail - Christmas crackers can only be sent in their complete made-up form and in their original retail pack
- Christmas crackers · Royal Mail / Post OfficeChristmas crackers UK & International – allowed in the mail, with restrictions and packaging guidelines below: Crackers can only be sent in their complete made-up form and in their
- Chromic acid, solid · USPSChromic acid, solid 5.1 NA1463 II Prohibited Prohibited
- Chromic acid solution · USPSChromic acid solution 8 UN1755 II, III 8A 8A
- Chromic fluoride, solid · USPSChromic fluoride, solid 8 UN1756 II 8A 8A
- Chromic fluoride, solution · USPSChromic fluoride, solution 8 UN1757 II, III 8A 8A
- Chromium nitrate · USPSChromium nitrate 5.1 UN2720 III 5A 5A
- Chromium oxychloride · USPSChromium oxychloride 8 UN1758 I Prohibited Prohibited
- Chromium trioxide, anhydrous · USPSChromium trioxide, anhydrous 5.1 UN1463 II Prohibited Prohibited
- Chromosulfuric acid · USPSChromosulfuric acid 8 UN2240 I Prohibited Prohibited
- Cigarette lighters charged with fuel (NA1057) · USPSCigarette Lighters (NA1057): Generally classified as Class 3 flammable liquid, lighters charged with fuel and having an ignition system (or similar heating, lighting, or ignition d
- cigarettes · USPSAny roll of tobacco wrapped in paper or in any substance not containing tobacco, or a roll of tobacco wrapped in any substance containing tobacco that, due to its appearance, the t
- Cigarettes, Cigars, & Tobacco · USPSCigarettes and smokeless tobacco are restricted items and can only be mailed in limited circumstances. Cigars may be mailed domestically.
- Cigarettes or Little Cigars · UPSUPS prohibits the shipment of Cigarettes or Little Cigars (as those terms are defined at ups.com/tobacco) to consumers.
- Class 3 Flammable Liquids · FedExClass 3 Flammable Liquids
- Class 8 Corrosives · FedExClass 8 Corrosives
- Cleaning agents and solvents (flammable liquid) · USPSCleaning Agents and Solvents: A flammable liquid. It is mailable if it qualifies as Limited Quantity surface materials and meet the conditions in 343.21 as applicable.
- Clinical and medical waste · Royal Mail / Post OfficeClinical and medical waste (eg contaminated dressings, bandages and needles) International – not allowed in the mail UK – not allowed in the mail
- Clinical and medical waste · Royal Mail Wholesale (Access customers)Clinical and medical waste For example contaminated dressings, bandages and needles.
- Coal briquettes, hot · USPSCoal briquettes, hot Forbidden Prohibited Prohibited Prohibited Prohibited
- Coal gas, compressed · USPSCoal gas, compressed 2.3 UN1023 n/a Prohibited Prohibited
- Coal tar distillates, flammable · USPSCoal tar distillates, flammable 3 UN1136 II, III Prohibited 3A
- Cobalt naphthenates, powder · USPSCobalt naphthenates, powder 4.1 UN2001 III Prohibited 4A
- Cobalt resinate, precipitated · USPSCobalt resinate, precipitated 4.1 UN1318 III Prohibited 4A
- Coins, cash, currency, bonds, postage stamps, money orders, and negotiable instruments · UPSCoins, cash, currency, bonds, postage stamps, money orders, and negotiable instruments (such as drafts, bills of exchange, or promissory notes, but excluding checks);
- Coke, hot · USPSCoke, hot Forbidden Prohibited Prohibited Prohibited Prohibited
- Combustible liquids — domestic air · USPSDomestic Mail via Air Transportation: Combustible liquids are mailable if they qualify as ID8000 materials
- Combustible liquids — domestic surface · USPSDomestic Mail via Surface Transportation: Combustible liquids are mailable if they qualify as Limited Quantity and consumer commodity materials
- Combustible Liquids (Hazard Class 3) · USPS343.22 Requirements for Combustible Liquids The following conditions apply for mailing combustible liquids: International Mail: Combustible liquids are prohibited. Domestic Mail vi
- Combustible liquids — international mail · USPSInternational Mail: Combustible liquids are prohibited.
- Commercial parcels — USPS Hazmat Quality compliance category · USPSThe “Hazmat Quality” compliance category will have a 100 percent compliance quality threshold. Pieces that do not meet the 100 percent compliance quality threshold will be subject
- Commercial plant imports · International mail to the United Kingdom (UPU list)Commercial Plant Imports Check restrictions with DEFRA
- Common fireworks · UPSCommon fireworks;
- Common household dry-cell batteries (AA, AAA, C, D, etc.) · USPSHousehold Dry-Cell Batteries: Common household battery types (AA, AAA, C, D, etc.) are generally not regulated as hazardous materials and are mailable.
- Complete firearms, ammunition, explosives · DHLComplete firearms, ammunition, explosives, explosive devices, including inert explosives or test pieces, air guns, replica or imitation firearms or ammunition
- Components, explosive train, n.o.s. · USPSComponents, explosive train, n.o.s. 1.2B UN0382 II Prohibited Prohibited
- Compounds, cleaning liquid · USPS · I, II, IIICompounds, cleaning liquid 3 NA1993 I, II, III 8A 8A
- Compounds, cleaning liquid · USPS · ICompounds, cleaning liquid 8 NA1760 I Prohibited Prohibited
- Compounds, cleaning liquid · USPS · II, IIICompounds, cleaning liquid 8 NA1760 II, III 8A 8A
- Compounds, tree killing liquid or Compounds, weed killing, liquid · USPS · I, II, IIICompounds, tree killing liquid or Compounds, weed killing, liquid 3 NA1993 I, II, III Prohibited 3A
- Compounds, tree killing liquid or Compounds, weed killing, liquid · USPS · I, IICompounds, tree killing liquid or Compounds, weed killing, liquid 6.1 NA2810 I, II Prohibited Prohibited
- Compounds, tree killing liquid or Compounds, weed killing, liquid · USPS · ICompounds, tree killing liquid or Compounds, weed killing, liquid 8 NA1760 I Prohibited Prohibited
- Compounds, tree killing liquid or Compounds, weed killing, liquid · USPS · II, IIICompounds, tree killing liquid or Compounds, weed killing, liquid 8 NA1760 II, III 8A 8A
- Compounds, tree killing liquid or Compounds, weed killing, liquid · USPS · IIICompounds, tree killing liquid or Compounds, weed killing, liquid 6.1 NA2810 III 6A 6A
- Compressed gas, flammable, n.o.s. · USPSCompressed gas, flammable, n.o.s. 2.1 UN1954 n/a Prohibited 2A
- Compressed gas, n.o.s. · USPSCompressed gas, n.o.s. 2.2 UN1956 n/a 2B 2B
- Compressed gas, oxidizing, n.o.s. · USPSCompressed gas, oxidizing, n.o.s. 2.2 UN3156 n/a 2B 2B
- Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D · USPSCompressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3304 n/a Prohibited Prohibited
- Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D · USPSCompressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3305 n/a Prohibited Prohibited
- Compressed gas, toxic, flammable, n.o.s. Inhalation Hazard Zone A, B, C, or D · USPSCompressed gas, toxic, flammable, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN1953 n/a Prohibited Prohibited
- Compressed gas, toxic, n.o.s. Inhalation Hazard Zone A, B, C, or D · USPSCompressed gas, toxic, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN1955 n/a Prohibited Prohibited
- Compressed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D · USPSCompressed gas, toxic, oxidizing, corrosive, n.o.s. InhalationHazard Zone A, B, C, or D 2.3 UN3306 n/a Prohibited Prohibited
- Compressed gas, toxic, oxidizing, corrosive, n.o.s. InhalationHazard Zone A, B, C, or D · USPSCompressed gas, toxic, oxidizing, corrosive, n.o.s. InhalationHazard Zone A, B, C, or D 2.3 UN3306 n/a Prohibited Prohibited
- Compressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A, B, C, or D · USPSCompressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3303 n/a Prohibited Prohibited
- Contraband including, but not limited to, illicit drugs and counterfeit goods · FedExContraband including, but not limited to, illicit drugs and counterfeit goods
- Contrivances, water-activated, with burster, expelling charge, or propelling charge · USPSContrivances, water-activated, with burster, expelling charge, or propelling charge 1.3L UN0249 II Prohibited Prohibited
- Controlled drugs and narcotics · Royal Mail / Post OfficeControlled drugs and narcotics (such as cannabis, cocaine, heroin, LSD, opium, amyl nitrate and all non-prescription controlled drugs) International – not allowed in the mail UK –
- Controlled drugs and narcotics · Royal Mail Wholesale (Access customers)Controlled drugs and narcotics Including cannabis, cocaine, heroin, LSD, opium and amyl nitrate.
- controlled substances - DEA-registered mailers · USPSControlled substances, and drugs that contain controlled substances, are acceptable in the domestic mail only under the following conditions:
- controlled substances - Schedule I-V · USPSthe mailing of the substance is also unlawful under 18 U.S.C. § 1716.
- Copper acetoarsenite · USPSCopper acetoarsenite 6.1 UN1585 II Prohibited Prohibited
- Copper acetylide · USPSCopper acetylide Forbidden Prohibited Prohibited Prohibited Prohibited
- Copper amine azide · USPSCopper amine azide Forbidden Prohibited Prohibited Prohibited Prohibited
- Copper arsenite · USPSCopper arsenite 6.1 UN1586 II Prohibited Prohibited
- Copper based pesticides, liquid, flammable, toxic, flashpoint less than 23° C · USPSCopper based pesticides, liquid, flammable, toxic, flashpoint less than 23° C 3 UN2776 I, II Prohibited Prohibited
- Copper based pesticides, liquid, toxic · USPS · I, IICopper based pesticides, liquid, toxic 6.1 UN3010 I, II Prohibited Prohibited
- Copper based pesticides, liquid, toxic · USPS · IIICopper based pesticides, liquid, toxic 6.1 UN3010 III 6A 6A
- Copper based pesticides, liquid, toxic, flammable, flashpoint not less than 23° C · USPS · I, IICopper based pesticides, liquid, toxic, flammable, flashpoint not less than 23° C 6.1 UN3009 I, II Prohibited Prohibited
- Copper based pesticides, liquid, toxic, flammable, flashpoint not less than 23° C · USPS · IIICopper based pesticides, liquid, toxic, flammable, flashpoint not less than 23° C 6.1 UN3009 III 6A 6A
- Copper based pesticides, solid, toxic · USPS · I, IICopper based pesticides, solid, toxic 6.1 UN2775 I, II Prohibited Prohibited
- Copper based pesticides, solid, toxic · USPS · IIICopper based pesticides, solid, toxic 6.1 UN2775 III 6A 6A
- Copper chlorate · USPSCopper chlorate 5.1 UN2721 II 5A 5A
- Copper chloride · USPSCopper chloride 8 UN2802 III 8A 8A
- Copper cyanide · USPSCopper cyanide 6.1 UN1587 II Prohibited Prohibited
- Copper tetramine nitrate · USPSCopper tetramine nitrate Forbidden Prohibited Prohibited Prohibited Prohibited
← records 1–400 · All of What can be mailed: USPS hazardous materials, plus item rules for post and couriers · records 801 on →