Records 1–400 — What can be mailed: USPS hazardous materials, plus item rules for post and couriers

Records 1 to 400 of 3,068. Each links to its own page, which carries the source URL and the quoted line that states the value.

• 1,1,1,2-Tetrafluoroethane or Refrigerant gas R 134a · USPS1,1,1,2-Tetrafluoroethane or Refrigerant gas R 134a 2.2 UN3159 n/a 2B 2B
• 1,1,1-Trichloroethane · USPS1,1,1-Trichloroethane 6.1 UN2831 III 6A 6A
• 1,1,1-Trifluoroethane, compressed or Refrigerant gas R 143a · USPS1,1,1-Trifluoroethane, compressed or Refrigerant gas R 143a 2.1 UN2035 n/a Prohibited 2A
• 1,1,2,2-Tetrachloroethane · USPS1,1,2,2-Tetrachloroethane 6.1 UN1702 II Prohibited Prohibited
• 1,1’-Diazoaminonaphthalene · USPS1,1’-Diazoaminonaphthalene Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,1-Dichloro-1-nitroethane · USPS1,1-Dichloro-1-nitroethane 6.1 UN2650 II Prohibited Prohibited
• 1,1-Dichloroethane · USPS1,1-Dichloroethane 3 UN2362 II Prohibited 3A
• 1,1-Difluoroethane or Refrigerant gas R 152a · USPS1,1-Difluoroethane or Refrigerant gas R 152a 2.1 UN1030 n/a Prohibited 2A
• 1,1-Difluoroethylene or Refrigerant gas R 1132a · USPS1,1-Difluoroethylene or Refrigerant gas R 1132a 2.1 UN1959 n/a Prohibited 2A
• 1,1-Dimethoxyethane · USPS1,1-Dimethoxyethane 3 UN2377 II Prohibited 3A
• 1,1-Dinitroethane (dry) · USPS1,1-Dinitroethane (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,2,3,6-Tetrahydrobenzaldehyde · USPS1,2,3,6-Tetrahydrobenzaldehyde 3 UN2498 III Prohibited 3A
• 1,2,3,6-Tetrahydropyridine · USPS1,2,3,6-Tetrahydropyridine 3 UN2410 II Prohibited 3A
• 1,2,4-Butanetriol trinitrate · USPS1,2,4-Butanetriol trinitrate Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,2-Butylene oxide, stabilized · USPS1,2-Butylene oxide, stabilized 3 UN3022 II Prohibited 3A
• 1,2-Di-(dimethylamino)ethane · USPS1,2-Di-(dimethylamino)ethane 3 UN2372 II Prohibited 3A
• 1,2-Diazidoethane · USPS1,2-Diazidoethane Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,2-Dibromobutan-3-one · USPS1,2-Dibromobutan-3-one 6.1 UN2648 II Prohibited Prohibited
• 1,2-Dichloro-1,1,2,2- Tetrafluoroethane or Refrigerant gas R 114 · USPS1,2-Dichloro-1,1,2,2- Tetrafluoroethane or Refrigerant gas R 114 2.2 UN1958 n/a 2B 2B
• 1,2-Dichloroethylene · USPS1,2-Dichloroethylene 3 UN1150 II Prohibited 3A
• 1,2-Dichloropropane · USPS1,2-Dichloropropane 3 UN1279 II Prohibited 3A
• 1,2-Dimethoxyethane · USPS1,2-Dimethoxyethane 3 UN2252 II Prohibited 3A
• 1,2-Dinitroethane · USPS1,2-Dinitroethane Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,2-Epoxy-3-ethoxypropane · USPS1,2-Epoxy-3-ethoxypropane 3 UN2752 III Prohibited 3A
• 1,2-Propylenediamine · USPS1,2-Propylenediamine 8 UN2258 II Prohibited Prohibited
• 1,3,5-Trimethyl-2,4,6-trinitrobenzene · USPS1,3,5-Trimethyl-2,4,6-trinitrobenzene Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,3,5-Trimethylbenzene · USPS1,3,5-Trimethylbenzene 3 UN2325 III Prohibited Prohibited
• 1,3,5-Trinitronaphthalene · USPS1,3,5-Trinitronaphthalene Forbidden Prohibited Prohibited
• 1,3-Diazopropane · USPS1,3-Diazopropane Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,3-Dichloroacetone · USPS1,3-Dichloroacetone 6.1 UN2649 II Prohibited Prohibited
• 1,3-Dichloropropanol2 · USPS1,3-Dichloropropanol2 6.1 UN2750 II Prohibited Prohibited
• 1,3-Dimethylbutylamine · USPS1,3-Dimethylbutylamine 3 UN2379 II Prohibited Prohibited
• 1,3-Dinitro-4,5-dinitrosobenzene · USPS1,3-Dinitro-4,5-dinitrosobenzene Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,3-Dinitro-5,5-dimethyl hydantoin · USPS1,3-Dinitro-5,5-dimethyl hydantoin Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,4-Butynediol · USPS1,4-Butynediol 6.1 UN2716 III Prohibited Prohibited
• 1,4-Dinitro-1,1,4,4- tetramethylolbutanetetranitrate (dry) · USPS1,4-Dinitro-1,1,4,4- tetramethylolbutanetetranitrate (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,5,9-Cyclododecatriene · USPS1,5,9-Cyclododecatriene 6.1 UN2518 III 6A 6A
• 1,7-Octadiene-3,5-diyne1,8- dimethoxy- 9-octadecynoic acid · USPS1,7-Octadiene-3,5-diyne1,8- dimethoxy- 9-octadecynoic acid Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,8-Dihydroxy-2,4,5,7- tetranitroanthraquinone (chrysamminic acid) · USPS1,8-Dihydroxy-2,4,5,7- tetranitroanthraquinone (chrysamminic acid) Forbidden Prohibited Prohibited Prohibited Prohibited
• 1,9-Dinitroxy pentamethylene2,4,6,8tetramine (dry) · USPS1,9-Dinitroxy pentamethylene2,4,6,8tetramine (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 1-Bromo-3-chloropropane · USPS1-Bromo-3-chloropropane 6.1 UN2688 III 6A 6A
• 1-Bromo-3-methylbutane · USPS1-Bromo-3-methylbutane 3 UN2341 III Prohibited 3A
• 1-Bromo-3-nitrobenzene (unstable at 56° C) · USPS1-Bromo-3-nitrobenzene (unstable at 56° C) Forbidden Prohibited Prohibited Prohibited Prohibited
• 1-Bromobutane · USPS1-Bromobutane 3 UN1126 II Prohibited 3A
• 1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b · USPS1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b 2.1 UN2517 n/a Prohibited 2A
• 1-Chloro-1,2,2,2-tetrafluoroethane or Refrigerant gas R 124 · USPS1-Chloro-1,2,2,2-tetrafluoroethaneor Refrigerant gas R 124 2.2 UN1021 n/a 2B 2B
• 1-Chloro-1,2,2,2-tetrafluoroethaneor Refrigerant gas R 124 · USPS1-Chloro-1,2,2,2-tetrafluoroethaneor Refrigerant gas R 124 2.2 UN1021 n/a 2B 2B
• 1-Chloro-2,2,2-trifluoroethane or Refrigerant gas R 133a · USPS1-Chloro-2,2,2-trifluoroethane or Refrigerant gas R 133a 2.2 UN1983 n/a 2B 2B
• 1-Chloropropane · USPS1-Chloropropane 3 UN1278 II Prohibited Prohibited
• 1-Ethylpiperidine · USPS1-Ethylpiperidine 3 UN2386 II Prohibited Prohibited
• 1H-Tetrazole · USPS1H-Tetrazole 1.1D UN0504 n/a Prohibited Prohibited
• 1-Hexene · USPS1-Hexene 3 UN2370 II Prohibited 3A
• 1-Hydroxybenzotriazole, monohydrate · USPS1-Hydroxybenzotriazole, monohydrate 4.1 UN3474 I Prohibited Prohibited
• 1-Methoxy-2-propanol · USPS1-Methoxy-2-propanol 3 UN3092 III Prohibited 3A
• 1-Methylpiperidine · USPS1-Methylpiperidine 3 UN2399 II Prohibited Prohibited
• 1-Nitrohydantoin · USPS1-Nitrohydantoin Forbidden Prohibited Prohibited Prohibited Prohibited
• 1-Pentene (n-amylene) · USPS1-Pentene (n-amylene) 3 UN1108 I Prohibited 3A
• 1-Pentol · USPS1-Pentol 8 UN2705 II 8A 8A
• 2,2’,3’,4,4’,6- Hexanitrodiphenylamine · USPS2,2’,3’,4,4’,6- Hexanitrodiphenylamine Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,2’,4,4’,6,6’-Hexanitro-3,3’- dihydroxyazobenzene (dry) · USPS2,2’,4,4’,6,6’-Hexanitro-3,3’- dihydroxyazobenzene (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 2-(2-Aminoethoxy) ethanol · USPS2-(2-Aminoethoxy) ethanol 8 UN3055 III 8A 8A
• 2,2-Di-(tert-butylperoxy) butane, with more than 55 percent in solution · USPS2,2-Di-(tert-butylperoxy) butane, with more than 55 percent in solution Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,2’-Dichlorodiethyl ether · USPS2,2’-Dichlorodiethyl ether 6.1 UN1916 II Prohibited Prohibited
• 2,2-Dimethylpropane · USPS2,2-Dimethylpropane 2.1 UN2044 n/a Prohibited 2A
• 2,2-Dinitrostilbene · USPS2,2-Dinitrostilbene Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,3’,4,4’,6,6’-Hexanitrodiphenylether · USPS2,3’,4,4’,6,6’-Hexanitrodiphenylether Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,3,4,6-Tetranitrophenol · USPS2,3,4,6-Tetranitrophenol Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,3,4,6-Tetranitrophenyl methyl nitramine · USPS2,3,4,6-Tetranitrophenyl methyl nitramine Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,3,4,6-Tetranitrophenylnitramine · USPS2,3,4,6-Tetranitrophenylnitramine Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,3,5,6-Tetranitroso-1,4- dinitrobenzene · USPS2,3,5,6-Tetranitroso-1,4- dinitrobenzene Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,3,5,6-Tetranitroso nitrobenzene (dry) · USPS2,3,5,6-Tetranitroso nitrobenzene (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,3-Dihydropyran · USPS2,3-Dihydropyran 3 UN2376 II Prohibited 3A
• 2,3-Dimethylbutane · USPS2,3-Dimethylbutane 3 UN2457 II Prohibited 3A
• 2,4,6-Trinitro-1,3,5-triazido benzene (dry) · USPS2,4,6-Trinitro-1,3,5-triazido benzene (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,4,6-Trinitro-1,3-diazobenzene · USPS2,4,6-Trinitro-1,3-diazobenzene Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,4,6-Trinitrophenyl guanidine (dry) · USPS2,4,6-Trinitrophenyl guanidine (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,4,6-Trinitrophenyl nitramine · USPS2,4,6-Trinitrophenyl nitramine Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,4,6-Trinitrophenyl trimethylol methyl nitramine trinitrate (dry) · USPS2,4,6-Trinitrophenyl trimethylol methyl nitramine trinitrate (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,4,6-Trinitroso-3-methyl nitraminoanisole · USPS2,4,6-Trinitroso-3-methyl nitraminoanisole Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,4-Dinitro-1,3,5-trimethylbenzene · USPS2,4-Dinitro-1,3,5-trimethylbenzene Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,-4Dinitroresorcinol (heavy metal salts of) (dry) · USPS2,-4Dinitroresorcinol (heavy metal salts of) (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 2,4-Toluylenediamine, solid or 2,4- Toluenediamine, solid · USPS2,4-Toluylenediamine, solid or 2,4- Toluenediamine, solid 6.1 UN1709 III 6A 6A
• 2,4-Toluylenediamine, solution or 2,4-Toluenediamine, solution · USPS2,4-Toluylenediamine, solution or 2,4-Toluenediamine, solution 6.1 UN3418 III 6A 6A
• 2,5-Dimethyl-2,5-dihydroperoxy hexane, with more than 82 percent with water · USPS2,5-Dimethyl-2,5-dihydroperoxy hexane, with more than 82 percent with water Forbidden Prohibited Prohibited Prohibited Prohibited
• 2-Amino-4,6-Dinitrophenol, wetted with not less than 20 percent water by mass · USPS2-Amino-4,6-Dinitrophenol, wetted with not less than 20 percent water by mass 4.1 UN3317 I Prohibited Prohibited
• 2-Amino-4-chlorophenol · USPS2-Amino-4-chlorophenol 6.1 UN2673 II Prohibited Prohibited
• 2-Amino-5-diethylaminopentane · USPS2-Amino-5-diethylaminopentane 6.1 UN2946 III 6A 6A
• 2-Bromo-2-nitropropane-1,3-diol · USPS2-Bromo-2-nitropropane-1,3-diol 4.1 UN3241 III Prohibited 4A
• 2-Bromobutane · USPS2-Bromobutane 3 UN2339 II Prohibited 3A
• 2-Bromoethyl ethyl ether · USPS2-Bromoethyl ethyl ether 3 UN2340 II Prohibited 3A
• 2-Bromopentane · USPS2-Bromopentane 3 UN2343 II Prohibited 3A
• 2-Chloroethanal · USPS2-Chloroethanal 6.1 UN2232 I Prohibited Prohibited
• 2-Chloropropane · USPS2-Chloropropane 3 UN2356 I Prohibited 3A
• 2-Chloropropene · USPS2-Chloropropene 3 UN2456 I Prohibited 3A
• 2-Chloropropionic acid · USPS2-Chloropropionic acid 8 UN2511 III 8A 8A
• 2-Chloropyridine · USPS2-Chloropyridine 6.1 UN2822 II Prohibited Prohibited
• 2-Diethylaminoethanol · USPS2-Diethylaminoethanol 8 UN2686 II Prohibited Prohibited
• 2-Dimethylaminoacetonitrile · USPS2-Dimethylaminoacetonitrile 3 UN2378 II Prohibited Prohibited
• 2-Dimethylaminoethanol · USPS2-Dimethylaminoethanol 8 UN2051 II 8A 8A
• 2-Dimethylaminoethyl acrylate · USPS2-Dimethylaminoethyl acrylate 6.1 UN3302 II Prohibited Prohibited
• 2-Dimethylaminoethyl methacrylate · USPS2-Dimethylaminoethyl methacrylate 6.1 UN2522 II Prohibited Prohibited
• 2-Ethylaniline · USPS2-Ethylaniline 6.1 UN2273 III 6A 6A
• 2-Ethylbutanol · USPS2-Ethylbutanol 3 UN2275 III Prohibited 3A
• 2-Ethylbutyl acetate · USPS2-Ethylbutyl acetate 3 UN1177 III Prohibited 3A
• 2-Ethylbutyraldehyde · USPS2-Ethylbutyraldehyde 3 UN1178 II Prohibited 3A
• 2-Ethylhexyl chloroformate · USPS2-Ethylhexyl chloroformate 6.1 UN2748 II Prohibited Prohibited
• 2-Ethylhexylamine · USPS2-Ethylhexylamine 3 UN2276 III Prohibited 3A
• 2-Iodobutane · USPS2-Iodobutane 3 UN2390 II Prohibited 3A
• 2-Methyl-1-butene · USPS2-Methyl-1-butene 3 UN2459 I Prohibited Prohibited
• 2-Methyl-2-butene · USPS2-Methyl-2-butene 3 UN2460 II Prohibited Prohibited
• 2-Methyl-2-heptanethiol · USPS2-Methyl-2-heptanethiol 6.1 UN3023 I Prohibited Prohibited
• 2-Methyl-5-ethylpyridine · USPS2-Methyl-5-ethylpyridine 6.1 UN2300 III 6A 6A
• 2-Methylfuran · USPS2-Methylfuran 3 UN2301 II Prohibited 3A
• 2-Methylpentan-2-ol · USPS2-Methylpentan-2-ol 3 UN2560 III Prohibited 3A
• 2-Nitro-2-methylpropanol nitrate · USPS2-Nitro-2-methylpropanol nitrate Forbidden Prohibited Prohibited Prohibited Prohibited
• 2-Trifluoromethylaniline · USPS2-Trifluoromethylaniline 6.1 UN2942 III 6A 6A
• 3,3-Diethoxypropene · USPS3,3-Diethoxypropene 3 UN2374 II Prohibited 3A
• 3,3’-Iminodipropylamine · USPS3,3’-Iminodipropylamine 8 UN2269 III 8A 8A
• 3,5-Dichloro-2,4,6-trifluoropyridine · USPS3,5-Dichloro-2,4,6-trifluoropyridine 6.1 NA9264 I Prohibited Prohibited
• 3,5-Dinitrosalicylic acid (lead salt) (dry) · USPS3,5-Dinitrosalicylic acid (lead salt) (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 3-Azido-1,2-Propylene glycol dinitrate · USPS3-Azido-1,2-Propylene glycol dinitrate Forbidden Prohibited Prohibited Prohibited Prohibited
• 3-Bromopropyne · USPS3-Bromopropyne 3 UN2345 II Prohibited 3A
• 3-Chloro-4-methylphenyl isocyanate, liquid · USPS3-Chloro-4-methylphenylisocyanate, liquid 6.1 UN2236 II Prohibited Prohibited
• 3-Chloro-4-methylphenyl isocyanate, solid · USPS3-Chloro-4-methylphenylisocyanate, solid 6.1 UN3428 II Prohibited Prohibited
• 3-Chloro-4-methylphenylisocyanate, liquid · USPS3-Chloro-4-methylphenylisocyanate, liquid 6.1 UN2236 II Prohibited Prohibited
• 3-Chloro-4-methylphenylisocyanate, solid · USPS3-Chloro-4-methylphenylisocyanate, solid 6.1 UN3428 II Prohibited Prohibited
• 3-Chloropropanol-1 · USPS3-Chloropropanol-1 6.1 UN2849 III 6A 6A
• 3-Diethylamino-propylamine · USPS3-Diethylamino-propylamine 3 UN2684 III Prohibited 3A
• 3-Methyl-1-butene · USPS3-Methyl-1-butene 3 UN2561 I Prohibited Prohibited
• 3-Methylbutan-2-one · USPS3-Methylbutan-2-one 3 UN2397 II Prohibited 3A
• 3-Nitro-4-chlorobenzotrifluoride · USPS3-Nitro-4-chlorobenzotrifluoride 6.1 UN2307 II Prohibited Prohibited
• 3-Trifluoromethylaniline · USPS3-Trifluoromethylaniline 6.1 UN2948 II Prohibited Prohibited
• 4,4’-Diaminodiphenyl methane · USPS4,4’-Diaminodiphenyl methane 6.1 UN2651 III 6A 6A
• 4,6-Dinitroresorcinol (heavy metal salts of) (dry) · USPS4,6-Dinitroresorcinol (heavy metal salts of) (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 4-Bromo-1,2-dinitrobenzene · USPS4-Bromo-1,2-dinitrobenzene Forbidden Prohibited Prohibited Prohibited Prohibited
• 4-Bromo-1,2-dinitrobenzene (unstable at 59° C) · USPS4-Bromo-1,2-dinitrobenzene (unstable at 59° C) Forbidden Prohibited Prohibited Prohibited Prohibited
• 4-Chloro-o-toluidine hydrochloride, solid · USPS4-Chloro-o-toluidine hydrochloride, solid 6.1 UN1579 III 6A 6A
• 4-Chloro-o-toluidine hydrochloride, solution · USPS4-Chloro-o-toluidine hydrochloride, solution 6.1 UN3410 III 6A 6A
• 4-Methoxy-4-methylpentan-2-one · USPS4-Methoxy-4-methylpentan-2-one 3 UN2293 III Prohibited 3A
• 4-Methylmorpholine or n- methylmorpholine · USPS4-Methylmorpholine or n- methylmorpholine 3 UN2535 II Prohibited Prohibited
• 4-Nitrophenylhydrazine, with not less than 30 percent water, by mass · USPS4-Nitrophenylhydrazine, with not less than 30 percent water, by mass 4.1 UN3376 I Prohibited Prohibited
• 4-Thiapentanal · USPS4-Thiapentanal 6.1 UN2785 III 6A 6A
• 5-Azido-1-hydroxy tetrazole · USPS5-Azido-1-hydroxy tetrazole Forbidden Prohibited Prohibited Prohibited Prohibited
• 5-Mercaptotetrazol-1-acetic acid · USPS5-Mercaptotetrazol-1-acetic acid 1.4C UN0448 II Prohibited Prohibited
• 5-Methylhexan-2-one · USPS5-Methylhexan-2-one 3 UN2302 III Prohibited 3A
• 5-Nitrobenzotriazol · USPS5-Nitrobenzotriazol 1.1D UN0385 II Prohibited Prohibited
• 5-tert-Butyl-2,4,6-trinitro-m-xylene or Musk xylene · USPS5-tert-Butyl-2,4,6-trinitro-m-xyleneor Musk xylene 4.1 UN2956 III Prohibited Prohibited
• 5-tert-Butyl-2,4,6-trinitro-m-xyleneor Musk xylene · USPS5-tert-Butyl-2,4,6-trinitro-m-xyleneor Musk xylene 4.1 UN2956 III Prohibited Prohibited
• 6-Nitro-4-diazotoluene-3-sulfonic acid (dry) · USPS6-Nitro-4-diazotoluene-3-sulfonic acid (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• 9-Phosphabicyclononanes or Cyclooctadiene phosphines · USPS9-Phosphabicyclononanes or Cyclooctadiene phosphines 4.2 UN2940 II Prohibited Prohibited
• a,a’-Di-(nitroxy) methylether · USPSa,a’-Di-(nitroxy) methylether Forbidden Prohibited Prohibited Prohibited Prohibited
• a-Methylglucoside tetranitrate · USPSa-Methylglucoside tetranitrate Forbidden Prohibited Prohibited Prohibited Prohibited
• a-Methylglycerol trinitrate · USPSa-Methylglycerol trinitrate Forbidden Prohibited Prohibited Prohibited Prohibited
• Acetal · USPSAcetal 3 UN1088 II Prohibited 3A
• Acetaldehyde · USPSAcetaldehyde 3 UN1089 I Prohibited Prohibited
• Acetaldehyde ammonia · USPSAcetaldehyde ammonia 9 UN1841 III Prohibited 9C
• Acetaldehyde oxime · USPSAcetaldehyde oxime 3 UN2332 III Prohibited 3A
• Acetic acid (UN2790) · USPSAcetic Acid (UN2790): May be mailable if they meet Limited Quantity requirements for air or surface material, contains less than 80 percent acid, and does not exceed 1 pint.
• Acetic anhydride · USPSAcetic anhydride 8 UN1715 II 8A 8A
• Acetone · USPSAcetone 3 UN1090 II Prohibited 3A
• Acetone cyanohydrin, stabilized · USPSAcetone cyanohydrin, stabilized 6.1 UN1541 I Prohibited Prohibited
• Acetone oils · USPSAcetone oils 3 UN1091 II Prohibited 3A
• Acetone (UN1090), Benzene (UN1114), Hexane(s) (UN1208) · USPSAcetone (UN1090) normally has a flashpoint of 0° F, Benzene (UN1114) normally has a flashpoint of 12° F, and Hexane(s) (UN1208) normally have flashpoints in the vicinity of -15° F.
• Acetonitrile · USPSAcetonitrile 3 UN1648 II Prohibited 3A
• Acetyl acetone peroxide with more than 9 percent by mass active oxygen · USPSAcetyl acetone peroxide with more than 9 percent by mass active oxygen Forbidden Prohibited Prohibited Prohibited Prohibited
• Acetyl benzoyl peroxide, solid, or with more than 40 percent in solution · USPSAcetyl benzoyl peroxide, solid, or with more than 40 percent in solution Forbidden Prohibited Prohibited Prohibited Prohibited
• Acetyl bromide · USPSAcetyl bromide 8 UN1716 II 8A 8A
• Acetyl chloride · USPSAcetyl chloride 3 UN1717 II Prohibited Prohibited
• Acetyl iodide · USPSAcetyl iodide 8 UN1898 II 8A 8A
• Acetyl methyl carbinol · USPSAcetyl methyl carbinol 3 UN2621 III Prohibited 3A
• Acetyl peroxide, solid, or with more than 25 percent in solution · USPSAcetyl peroxide, solid, or with more than 25 percent in solution Forbidden Prohibited Prohibited Prohibited Prohibited
• Acetylene, dissolved · USPSAcetylene, dissolved 2.1 UN1001 n/a Prohibited Prohibited
• Acetylene (liquified) · USPSAcetylene (liquified) Forbidden Prohibited Prohibited Prohibited Prohibited
• Acetylene silver nitrate · USPSAcetylene silver nitrate Forbidden Prohibited Prohibited Prohibited Prohibited
• Acetylene, solvent free · USPSAcetylene, solvent free Forbidden Prohibited Prohibited Prohibited Prohibited
• Acridine · USPSAcridine 6.1 UN2713 III 6A 6A
• Acrolein dimer, stabilized · USPSAcrolein dimer, stabilized 3 UN2607 III Prohibited 3A
• Acrolein, stabilized · USPSAcrolein, stabilized 6.1 UN1092 I Prohibited Prohibited
• Acrylamide, solid · USPSAcrylamide, solid 6.1 UN2074 III 6A 6A
• Acrylamide, solution · USPSAcrylamide, solution 6.1 UN3426 III 6A 6A
• Acrylic acid, stabilized · USPSAcrylic acid, stabilized 8 UN2218 II 8A 8A
• Acrylonitrile, stabilized · USPSAcrylonitrile, stabilized 3 UN1093 I Prohibited Prohibited
• Adhesives and cements (UN1133) · USPSAdhesives and Cements (UN1133): A flammable liquid with an approximate flashpoint of 73° F (23° C) is mailable only if it qualifies as a Limited Quantity surface material and meets
• Adhesives, containing a flammable liquid · USPSAdhesives, containing a flammable liquid 3 UN1133 I, II, III Prohibited 3A
• Adiponitrile · USPSAdiponitrile 6.1 UN2205 III 6A 6A
• Aerosol paint products (flammable compressed gas) · USPSAerosol Paint Products: Aerosol paint products that are defined as flammable compressed gases are acceptable in the domestic mail via surface transportation only if they can qualif
• Aerosols · Royal Mail Wholesale (Access customers)Aerosols Including spray paints, lacquers, solvents, air fresheners, oven cleaners, deodorants, body sprays, hair sprays, shaving and hair removal creams. Inhalers with a volume of
• Aerosols · USPSMake sure you read about the specific rules and restrictions for sending mailable gases.
• Aerosols, corrosive, Packing Group II or III, (each not exceeding 1 L capacity) · USPSAerosols, corrosive, Packing Group II or III, (each not exceeding 1 L capacity) 2.2 UN1950 n/a 2B 2B
• Aerosols, flammable (each not exceeding 1 L capacity) · USPSAerosols, flammable (each not exceeding 1 L capacity) 2.1 UN1950 n/a Prohibited 2A
• Aerosols, flammable, n.o.s. (engine starting fluid) (each not exceeding 1 L capacity) · USPSAerosols, flammable, n.o.s. (engine starting fluid) (each not exceeding 1 L capacity) 2.1 UN1950 n/a Prohibited 2A
• Aerosols for toiletry or medicinal purposes · Royal Mail / ParcelforcePackaging guidelines: Valves must be protected to prevent inadvertent release of the contents. Volume per item must not exceed 500ml. No more than two items in any one parcel, tigh
• Aerosols, nonflammable (each not exceeding 1 L capacity) · USPSAerosols, nonflammable (each not exceeding 1 L capacity) 2.2 UN1950 n/a 2B 2B
• Aerosols, poison, each not exceeding 1 L capacity · USPSAerosols, poison, each not exceeding 1 L capacity 2.2 UN1950 n/a 2B 2B
• Air bag inflators, or Air bag modules, or Seatbelt pretensioners · USPSAir bag inflators, or Air bag modules, or Seatbelt pretensioners 1.4G UN0503 II Prohibited Prohibited
• Air Bags · USPSYou can't send these items in the U.S. mail: Air Bags
• Air, compressed · USPSAir, compressed 2.2 UN1002 n/a 2B 2B
• air guns · USPSAir guns are devices that expel projectiles using compressed air or other gas (including paintball and pellet guns). Air guns are not regulated as firearms unless they are manufact
• air guns - high muzzle velocity · USPSShipments containing air guns with a muzzle velocity of 400 or more feet per second (fps) must include an Adult Signature service per DMM 503.8.
• Air, refrigerated liquid (cryogenic liquid) · USPSAir, refrigerated liquid (cryogenic liquid) 2.2 UN1003 n/a Prohibited Prohibited
• Air, refrigerated liquid (cryogenic liquid), nonpressurized · USPSAir, refrigerated liquid (cryogenic liquid), nonpressurized 2.2 UN1003 n/a Prohibited Prohibited
• Alcoholates solution, n.o.s., in alcohol · USPSAlcoholates solution, n.o.s., in alcohol 3 UN3274 II Prohibited Prohibited
• Alcoholic Beverages · USPSBeer, wine, and liquor may not be sent through the mail, except in limited circumstances.
• Alcoholic beverages and liquids containing more than 70% alcohol by volume (ABV) · Royal Mail / Post OfficeAlcoholic beverages and liquids containing more than 70% alcohol by volume (ABV) International – not allowed in the mail UK – not allowed in the mail
• Alcoholic beverages greater than 24% ABV · Royal Mail Wholesale (Access customers)With an alcohol content greater than 24% ABV including spirits such as gin, vodka and whisky. Alcoholic beverages with an alcohol content no greater than 24% ABV including beer, la
• Alcoholic beverages more than 24% but not more than 70% ABV · Royal Mail / ParcelforcePackaging guidelines: Volume must not exceed 1 litre per item. No more than two items in any one parcel. Wrap in polythene and seal with tape. Surround with absorbent material and
• Alcohols, flammable, toxic, n.o.s. · USPSAlcohols, flammable, toxic, n.o.s. 3 UN1986 I, II, III Prohibited Prohibited
• Alcohols, n.o.s. · USPS · IAlcohols, n.o.s. 3 UN1987 I Prohibited Prohibited
• Alcohols, n.o.s. · USPS · II, IIIAlcohols, n.o.s. 3 UN1987 II, III Prohibited 3A
• Aldehydes, flammable, toxic, n.o.s. · USPS · I, IIAldehydes, flammable, toxic, n.o.s. 3 UN1988 I, II Prohibited Prohibited
• Aldehydes, flammable, toxic, n.o.s. · USPS · IIIAldehydes, flammable, toxic, n.o.s. 3 UN1988 III Prohibited 3A
• Aldehydes, n.o.s. · USPS · IAldehydes, n.o.s. 3 UN1989 I Prohibited Prohibited
• Aldehydes, n.o.s. · USPS · II, IIIAldehydes, n.o.s. 3 UN1989 II, III Prohibited 3A
• Aldol · USPSAldol 6.1 UN2839 II Prohibited Prohibited
• Aldrin, liquid · USPSAldrin, liquid 6.1 NA2762 II Prohibited Prohibited
• Aldrin, solid · USPSAldrin, solid 6.1 NA2761 II Prohibited Prohibited
• Alkali metal alcoholates, self-heating, corrosive, n.o.s. · USPSAlkali metal alcoholates, self-heating, corrosive, n.o.s. 4.2 UN3206 II, III Prohibited Prohibited
• Alkali metal alloys, liquid, n.o.s. · USPSAlkali metal alloys, liquid, n.o.s. 4.3 UN1421 I Prohibited Prohibited
• Alkali metal amalgam, liquid · USPSAlkali metal amalgam, liquid 4.3 UN1389 I Prohibited Prohibited
• Alkali metal amalgam, solid · USPSAlkali metal amalgam, solid 4.3 UN3401 I Prohibited Prohibited
• Alkali metal amides · USPSAlkali metal amides 4.3 UN1390 II Prohibited 4A
• Alkali metal dispersions, flammable or Alkaline earth metal dispersions, flammable · USPSAlkali metal dispersions, flammable or Alkaline earth metal dispersions, flammable 4.3 UN3482 I Prohibited Prohibited
• Alkali metal dispersions, or Alkaline earth metal dispersions · USPSAlkali metal dispersions, or Alkaline earth metal dispersions 4.3 UN1391 I Prohibited Prohibited
• Alkaline earth metal alcoholates, n.o.s. · USPSAlkaline earth metal alcoholates, n.o.s. 4.2 UN3205 II, III Prohibited Prohibited
• Alkaline earth metal alloys, n.o.s. · USPSAlkaline earth metal alloys, n.o.s. 4.3 UN1393 II Prohibited 4A
• Alkaline earth metal amalgams, liquid · USPSAlkaline earth metal amalgams, liquid 4.3 UN1392 I Prohibited Prohibited
• Alkaline earth metal amalgams, solid · USPSAlkaline earth metal amalgams, solid 4.3 UN3402 I Prohibited Prohibited
• Alkaloids, liquid, n.o.s., or Alkaloid salts, liquid, n.o.s. · USPS · I, IIAlkaloids, liquid, n.o.s., or Alkaloid salts, liquid, n.o.s. 6.1 UN3140 I, II Prohibited Prohibited
• Alkaloids, liquid, n.o.s., or Alkaloid salts, liquid, n.o.s. · USPS · IIIAlkaloids, liquid, n.o.s., or Alkaloid salts, liquid, n.o.s. 6.1 UN3140 III 6A 6A
• Alkaloids, solid, n.o.s. or Alkaloid salts, solid, n.o.s. poisonous · USPS · I, IIAlkaloids, solid, n.o.s. or Alkaloid salts, solid, n.o.s. poisonous 6.1 UN1544 I, II Prohibited Prohibited
• Alkaloids, solid, n.o.s. or Alkaloid salts, solid, n.o.s. poisonous · USPS · IIIAlkaloids, solid, n.o.s. or Alkaloid salts, solid, n.o.s. poisonous 6.1 UN1544 III 6A 6A
• Alkylphenols, liquid, n.o.s. (including C2-C12 homologues) · USPSAlkylphenols, liquid, n.o.s. (including C2-C12 homologues) 8 UN3145 II, III 8A 8A
• Alkylphenols, liquid, n.o.s. (including C2C12 homologues) · USPSAlkylphenols, liquid, n.o.s. (including C2C12 homologues) 8 UN3145 I Prohibited Prohibited
• Alkylphenols, solid, n.o.s. (including C2-C12 homologues) · USPS · IAlkylphenols, solid, n.o.s. (including C2-C12 homologues) 8 UN2430 I Prohibited Prohibited
• Alkylphenols, solid, n.o.s. (including C2-C12 homologues) · USPS · II, IIIAlkylphenols, solid, n.o.s. (including C2-C12 homologues) 8 UN2430 II, III 8A 8A
• Alkylsulfuric acids · USPSAlkylsulfuric acids 8 UN2571 II 8A 8A
• All commodities valued over US$20,000 without approval · FedExAll commodities valued over US$20,000 without approval
• All flammable liquids with flashpoint of 20 F (-7 C) or below · USPSAll flammable liquids having a flashpoint of 20° F (-7° C) or below are prohibited from mailing.
• Allyl acetate · USPSAllyl acetate 3 UN2333 II Prohibited Prohibited
• Allyl alcohol · USPSAllyl alcohol 6.1 UN1098 I Prohibited Prohibited
• Allyl bromide · USPSAllyl bromide 3 UN1099 I Prohibited Prohibited
• Allyl chloride · USPSAllyl chloride 3 UN1100 I Prohibited Prohibited
• Allyl chloroformate · USPSAllyl chloroformate 6.1 UN1722 I Prohibited Prohibited
• Allyl ethyl ether · USPSAllyl ethyl ether 3 UN2335 II Prohibited Prohibited
• Allyl formate · USPSAllyl formate 3 UN2336 I Prohibited Prohibited
• Allyl glycidyl ether · USPSAllyl glycidyl ether 3 UN2219 III Prohibited 3A
• Allyl iodide · USPSAllyl iodide 3 UN1723 II Prohibited Prohibited
• Allyl isothiocyanate, stabilized · USPSAllyl isothiocyanate, stabilized 6.1 UN1545 II Prohibited Prohibited
• Allylamine · USPSAllylamine 6.1 UN2334 I Prohibited Prohibited
• Allyltrichlorosilane, stabilized · USPSAllyltrichlorosilane, stabilized 8 UN1724 II Prohibited Prohibited
• alpha-Methylbenzyl alcohol, liquid · USPSalpha-Methylbenzyl alcohol, liquid 6.1 UN2937 III 6A 6A
• alpha-Methylbenzyl alcohol, solid · USPSalpha-Methylbenzyl alcohol, solid 6.1 UN3438 III 6A 6A
• alpha-Methylvaleraldehyde · USPSalpha-Methylvaleraldehyde 3 UN2367 II Prohibited 3A
• Alpha-Naphthylamine · USPSAlpha-Naphthylamine 6.1 UN2077 III 6A 6A
• Alpha-Pinene · USPSAlpha-Pinene 3 UN2368 III Prohibited 3A
• Aluminum borohydride or Aluminum borohydride in devices · USPSAluminum borohydride or Aluminum borohydride in devices 4.2 UN2870 I Prohibited Prohibited
• Aluminum bromide, anhydrous · USPSAluminum bromide, anhydrous 8 UN1725 II 8A 8A
• Aluminum bromide, solution · USPSAluminum bromide, solution 8 UN2580 III 8A 8A
• Aluminum carbide · USPSAluminum carbide 4.3 UN1394 II Prohibited 4A
• Aluminum chloride, anhydrous · USPSAluminum chloride, anhydrous 8 UN1726 II 8A 8A
• Aluminum chloride, solution · USPSAluminum chloride, solution 8 UN2581 III 8A 8A
• Aluminum dross, wet or hot · USPSAluminum dross, wet or hot Forbidden Prohibited Prohibited Prohibited Prohibited
• Aluminum ferrosilicon powder · USPSAluminum ferrosilicon powder 4.3 UN1395 II, III Prohibited 4A
• Aluminum hydride · USPSAluminum hydride 4.3 UN2463 I Prohibited Prohibited
• Aluminum, molten · USPSAluminum, molten 9 NA9260 III Prohibited Prohibited
• Aluminum, nitrate · USPSAluminum, nitrate 5.1 UN1438 III 5A 5A
• Aluminum phosphide · USPSAluminum phosphide 4.3 UN1397 I Prohibited Prohibited
• Aluminum phosphide pesticides · USPSAluminum phosphide pesticides 6.1 UN3048 I Prohibited Prohibited
• Aluminum powder, coated · USPSAluminum powder, coated 4.1 UN1309 II, III Prohibited 4A
• Aluminum powder, uncoated · USPSAluminum powder, uncoated 4.3 UN1396 II, III Prohibited 4A
• Aluminum resinate · USPSAluminum resinate 4.1 UN2715 III Prohibited 4A
• Aluminum silicon powder, uncoated · USPSAluminum silicon powder, uncoated 4.3 UN1398 III Prohibited 4A
• Aluminum smelting by-products or Aluminum remelting by-products · USPSAluminum smelting by-products or Aluminum remelting by-products 4.3 UN3170 II, III Prohibited Prohibited
• Amine, flammable, corrosive, n.o.s. or Polyamines, flammable, corrosive, n.o.s. · USPS · I, IIAmine, flammable, corrosive, n.o.s. or Polyamines, flammable, corrosive, n.o.s. 3 UN2733 I, II Prohibited Prohibited
• Amine, flammable, corrosive, n.o.s. or Polyamines, flammable, corrosive, n.o.s. · USPS · IIIAmine, flammable, corrosive, n.o.s. or Polyamines, flammable, corrosive, n.o.s. 3 UN2733 III Prohibited 3A
• Amines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, n.o.s. · USPS · IAmines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, n.o.s. 8 UN2735 I Prohibited Prohibited
• Amines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, n.o.s. · USPS · II, IIIAmines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, n.o.s. 8 UN2735 II, III 8A 8A
• Amines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s. · USPS · IAmines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s. 8 UN3259 I Prohibited Prohibited
• Amines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s. · USPS · II, IIIAmines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s. 8 UN3259 II, III 8A 8A
• Aminophenols (o-; m-; p-) · USPSAminophenols (o-; m-; p-) 6.1 UN2512 III 6A 6A
• Aminopyridines (o-; m-; p-) · USPSAminopyridines (o-; m-; p-) 6.1 UN2671 II Prohibited Prohibited
• Ammonia, anhydrous (domestic) · USPSAmmonia, anhydrous (domestic) 2.2 UN1005 n/a Prohibited Prohibited
• Ammonia, anhydrous (international) · USPSAmmonia, anhydrous (international) 2.3 UN1005 n/a Prohibited Prohibited
• Ammonium arsenate · USPSAmmonium arsenate 6.1 UN1546 II Prohibited Prohibited
• Ammonium azide · USPSAmmonium azide Forbidden Prohibited Prohibited Prohibited Prohibited
• Ammonium bromate · USPSAmmonium bromate Forbidden Prohibited Prohibited Prohibited Prohibited
• Ammonium chlorate · USPSAmmonium chlorate Forbidden Prohibited Prohibited Prohibited Prohibited
• Ammonium dichromate · USPSAmmonium dichromate 5.1 UN1439 II 5A 5A
• Ammonium dinitro-o-cresolate, solid · USPSAmmonium dinitro-o-cresolate, solid 6.1 UN1843 II Prohibited Prohibited
• Ammonium dinitro-o-cresolate, solution · USPSAmmonium dinitro-o-cresolate, solution 6.1 UN3424 II Prohibited Prohibited
• Ammonium fluoride · USPSAmmonium fluoride 6.1 UN2505 III 6A 6A
• Ammonium fluorosilicate · USPSAmmonium fluorosilicate 6.1 UN2854 III 6A 6A
• Ammonium fulminate · USPSAmmonium fulminate Forbidden Prohibited Prohibited Prohibited Prohibited
• Ammonium hydrogen sulfate · USPSAmmonium hydrogen sulfate 8 UN2506 II 8A 8A
• Ammonium hydrogendiflouride, solution · USPS · IIAmmonium hydrogendiflouride, solution 8 UN2817 II Prohibited Prohibited
• Ammonium hydrogendiflouride, solution · USPS · IIIAmmonium hydrogendiflouride, solution 8 UN2817 III 8A 8A
• Ammonium hydrogendifluoride, solid · USPSAmmonium hydrogendifluoride, solid 8 UN1727 II 8A 8A
• Ammonium metavanadate · USPSAmmonium metavanadate 6.1 UN2859 II Prohibited Prohibited
• Ammonium nitrate · USPSAmmonium nitrate Forbidden Prohibited Prohibited Prohibited Prohibited
• Ammonium nitrate based fertilizers · USPSAmmonium nitrate based fertilizers 5.1 UN2067 III 5A 5A
• Ammonium nitrate fertilizers · USPSAmmonium nitrate fertilizers 5.1 NA2072 III 5A 5A
• Ammonium nitrate, liquid (hot concentrated solution) · USPSAmmonium nitrate, liquid (hot concentrated solution) 5.1 UN2426 n/a Prohibited Prohibited
• Ammonium nitrate mixed fertilizers · USPSAmmonium nitrate mixed fertilizers 5.1 NA2069 III 5A 5A
• Ammonium perchlorate · USPSAmmonium perchlorate 1.1D UN0402 II Prohibited Prohibited
• Ammonium permanganate · USPSAmmonium permanganate Forbidden Prohibited Prohibited Prohibited Prohibited
• Ammonium persulfate · USPSAmmonium persulfate 5.1 UN1444 III 5A 5A
• Ammonium picrate, dry or wetted with less than 10 percent water, by mass · USPSAmmonium picrate, dry or wetted with less than 10 percent water, by mass 1.1D UN0004 II Prohibited Prohibited
• Ammonium picrate, wetted with not less than 10 percent water, by mass · USPSAmmonium picrate, wetted with not less than 10 percent water, by mass 4.1 UN1310 I Prohibited Prohibited
• Ammonium polysulfide, solution · USPS · IIAmmonium polysulfide, solution 8 UN2818 II Prohibited Prohibited
• Ammonium polysulfide, solution · USPS · IIIAmmonium polysulfide, solution 8 UN2818 III 8A 8A
• Ammonium polyvanadate · USPSAmmonium polyvanadate 6.1 UN2861 II 6A 6A
• Ammonium sulfide solution · USPSAmmonium sulfide solution 8 UN2683 II Prohibited Prohibited
• Ammunition · Royal Mail / Post OfficeAmmunition (excluding lead pellets and other airgun and airsoft projectiles) International – not allowed in the mail UK – not allowed in the mail
• Ammunition · Royal Mail Wholesale (Access customers)Ammunition Except lead pellets.
• Ammunition · UPSUPS accepts ammunition for transporta- tion where such ammunition constitutes “cartridges, small arms,” as defined in 49 C.F.R. § 173.59.
• Ammunition · USPSItems You can't send these items in the U.S. mail: Air Bags Ammunition Explosives Gasoline Liquid Mercury Marijuana (medical or otherwise); hemp/CBD is allowed, but restricted Dome
• Ammunition, practice · USPSAmmunition, practice 1.4G UN0362 II Prohibited Prohibited
• Ammunition, proof · USPSAmmunition, proof 1.4G UN0363 II Prohibited Prohibited
• Ammunition, smoke, with or without burster, expelling charge, or propelling charge · USPSAmmunition, smoke, with or without burster, expelling charge, or propelling charge 1.2G UN0015 II Prohibited Prohibited
• Ammunition, tear-producing with burster, expelling charge, or propelling charge · USPSAmmunition, tear-producing with burster, expelling charge, or propelling charge 1.2G UN0018 II Prohibited Prohibited
• Ammunition, toxic, nonexplosive, without burster or expelling charge, non-fuzed · USPSAmmunition, toxic, nonexplosive, without burster or expelling charge, non-fuzed 6.1 UN2016 II Prohibited Prohibited
• Ammunition, toxic with burster, expelling charge, or propelling charge · USPSAmmunition, toxic with burster, expelling charge, or propelling charge 1.2K UN0020 II Prohibited Prohibited
• Amyl acetates · USPSAmyl acetates 3 UN1104 III Prohibited 3A
• Amyl acid phosphate · USPSAmyl acid phosphate 8 UN2819 III 8A 8A
• Amyl butyrates · USPSAmyl butyrates 3 UN2620 III Prohibited 3A
• Amyl chlorides · USPSAmyl chlorides 3 UN1107 II Prohibited 3A
• Amyl formates · USPSAmyl formates 3 UN1109 III Prohibited 3A
• Amyl mercaptans · USPSAmyl mercaptans 3 UN1111 II Prohibited Prohibited
• Amyl nitrate · USPSAmyl nitrate 3 UN1112 III Prohibited 3A
• Amyl nitrites · USPSAmyl nitrites 3 UN1113 II Prohibited 3A
• Amylamines · USPS · IIAmylamines 3 UN1106 II Prohibited Prohibited
• Amylamines · USPS · IIIAmylamines 3 UN1106 III Prohibited 3A
• Amyltrichlorosilane · USPSAmyltrichlorosilane 8 UN1728 II Prohibited Prohibited
• Aniline · USPSAniline 6.1 UN1547 II Prohibited Prohibited
• Aniline hydrochloride · USPSAniline hydrochloride 6.1 UN1548 III 6A 6A
• Animal furs and skins · International mail to the United Kingdom (UPU list)The fur and skin of endangered animals or fish; or goods made from them; such as jewellery; shoes; bags and belts are banned for trade import into the UK unless you have a valid pe
• Anisidines · USPSAnisidines 6.1 UN2431 III 6A 6A
• Anisole · USPSAnisole 3 UN2222 III Prohibited 3A
• Anisoyl chloride · USPSAnisoyl chloride 8 UN1729 II 8A 8A
• Antimony compounds, inorganic, liquid, n.o.s. · USPSAntimony compounds, inorganic, liquid, n.o.s. 6.1 UN3141 III 6A 6A
• Antimony compounds, inorganic, solid, n.o.s. · USPSAntimony compounds, inorganic, solid, n.o.s. 6.1 UN1549 III 6A 6A
• Antimony lactate · USPSAntimony lactate 6.1 UN1550 III 6A 6A
• Antimony pentachloride, liquid · USPSAntimony pentachloride, liquid 8 UN1730 II Prohibited Prohibited
• Antimony pentachloride, solutions · USPSAntimony pentachloride, solutions 8 UN1731 II, III 8A 8A
• Antimony pentafluoride · USPSAntimony pentafluoride 8 UN1732 II Prohibited Prohibited
• Antimony potassium tartrate · USPSAntimony potassium tartrate 6.1 UN1551 III 6A 6A
• Antimony powder · USPSAntimony powder 6.1 UN2871 III 6A 6A
• Antimony sulfide and a chlorate, mixtures of · USPSAntimony sulfide and a chlorate, mixtures of Forbidden Prohibited Prohibited Prohibited Prohibited
• Antimony tribromide, solid · USPSAntimony tribromide, solid 8 NA1549 II 8A 8A
• Antimony tribromide, solution · USPSAntimony tribromide, solution 8 NA1549 II 8A 8A
• Antimony trichloride, liquid · USPSAntimony trichloride, liquid 8 UN1733 II 8A 8A
• Antimony trichloride, solid · USPSAntimony trichloride, solid 8 UN1733 II 8A 8A
• Antimony, trifluoride, solid · USPSAntimony, trifluoride, solid 8 NA1549 II 8A 8A
• Antimony, trifluoride, solution · USPSAntimony, trifluoride, solution 8 NA1549 II 8A 8A
• Antiques, works of art, and fine art · DHLAntiques, works of art, and fine art
• Any Package with an actual value of more than $50,000 · UPSAny Package with an actual value of more than $50,000, except that the actual value of Packages declared in accordance with the Enhanced Maximum Declared Value provisions of Sectio
• Any pallet with an actual value of more than $100,000 · UPSAny pallet with an actual value of more than $100,000;
• Argon, compressed · USPSArgon, compressed 2.2 UN1006 n/a 2B 2B
• Argon, refrigerated liquid (cryogenic liquid) · USPSArgon, refrigerated liquid (cryogenic liquid) 2.2 UN1951 n/a Prohibited Prohibited
• Arsenic · USPSArsenic 6.1 UN1558 II Prohibited Prohibited
• Arsenic acid, liquid · USPSArsenic acid, liquid 6.1 UN1553 I Prohibited Prohibited
• Arsenic acid, solid · USPSArsenic acid, solid 6.1 UN1554 II Prohibited Prohibited
• Arsenic bromide · USPSArsenic bromide 6.1 UN1555 II Prohibited Prohibited
• Arsenic pentoxide · USPSArsenic pentoxide 6.1 UN1559 II Prohibited Prohibited
• Arsenic sulfide · USPSArsenic sulfide 6.1 NA1557 II Prohibited Prohibited
• Arsenic sulfide and a chlorate, mixtures of · USPSArsenic sulfide and a chlorate, mixtures of Forbidden Prohibited Prohibited Prohibited Prohibited
• Arsenic trichloride · USPSArsenic trichloride 6.1 UN1560 I Prohibited Prohibited
• Arsenic trioxide · USPSArsenic trioxide 6.1 UN1561 II Prohibited Prohibited
• Arsenic trisulfide · USPSArsenic trisulfide 6.1 NA1557 II Prohibited Prohibited
• Arsenical dust · USPSArsenical dust 6.1 UN1562 II Prohibited Prohibited
• Arsenical pesticides, liquid, flammable, toxic, flashpoint less than 23° C · USPSArsenical pesticides, liquid, flammable, toxic, flashpoint less than 23° C 3 UN2760 I, II Prohibited Prohibited
• Arsenical pesticides, liquid, toxic · USPS · I, IIArsenical pesticides, liquid, toxic 6.1 UN2994 I, II Prohibited Prohibited
• Arsenical pesticides, liquid, toxic · USPS · IIIArsenical pesticides, liquid, toxic 6.1 UN2994 III 6A 6A
• Arsenical pesticides, liquid, toxic, flammable flashpoint not less than 23° C · USPS · I, IIArsenical pesticides, liquid, toxic, flammable flashpoint not less than 23° C 6.1 UN2993 I, II Prohibited Prohibited
• Arsenical pesticides, liquid, toxic, flammable flashpoint not less than 23° C · USPS · IIIArsenical pesticides, liquid, toxic, flammable flashpoint not less than 23° C 6.1 UN2993 III 6A 6A
• Arsenical pesticides, solid, toxic · USPS · I, IIArsenical pesticides, solid, toxic 6.1 UN2759 I, II Prohibited Prohibited
• Arsenical pesticides, solid, toxic · USPS · IIIArsenical pesticides, solid, toxic 6.1 UN2759 III 6A 6A
• Arsine · USPSArsine 2.3 UN2188 n/a Prohibited Prohibited
• Articles, explosive, extremely insensitive or Articles, EEI · USPSArticles, explosive, extremely insensitive or Articles, EEI 1.6N UN0486 II Prohibited Prohibited
• Articles, explosive, n.o.s. · USPSArticles, explosive, n.o.s. 1.4S UN0349 II Prohibited Prohibited
• Articles infringing trade mark or copyright · Royal Mail / ParcelforceArticles infringing trade mark or copyright are prohibited
• Articles made from natural or depleted uranium or natural thorium (UN2909) · USPSUN2909: Manufactured articles containing only natural or depleted uranium or thorium, categorized as excepted package-articles manufactured from uranium or depleted uranium or natu
• Articles, pressurized pneumatic or Hydraulic containing nonflammable gas · USPSArticles, pressurized pneumatic or Hydraulic containing nonflammable gas 2.2 UN3164 n/a 2B 2B
• Articles, pyrophoric · USPSArticles, pyrophoric 1.2L UN0380 II Prohibited Prohibited
• Articles, pyrotechnic for technical purposes · USPSArticles, pyrotechnic for technical purposes 1.1G UN0428 II Prohibited Prohibited
• Artwork, archeological artifacts and antiquities · FedExArtwork, archeological artifacts and antiquities
• Asbestos · DHLAsbestos Furs
• Asbestos · Royal Mail / Post OfficeAsbestos International – not allowed in the mail UK – not allowed in the mail (except when sent as a sample fixed in a resin, plastic or glass matrix), prohibited from Parcelforce
• Asbestos · Royal Mail Wholesale (Access customers)Asbestos Except when sent as a sample fixed in a resin, plastic or glass matrix.
• Asbestos · USPSAsbestos 9 NA2212 III Prohibited 9C
• Ascaridole (organic peroxide) · USPSAscaridole (organic peroxide) Forbidden Prohibited Prohibited Prohibited Prohibited
• Asphalt, at or above its flashpoint · USPSAsphalt, at or above its flashpoint 3 NA1999 III Prohibited 3A
• Audible fire alarm systems powered by compressed gas · USPSAudible Fire Alarm Systems: These systems, if powered by compressed gas, are acceptable in domestic mail via surface transportation if they comply with conditions in Packaging Inst
• Auto parts with fluids in them · FedExAuto parts with fluids in them
• Aviation regulated liquid, n.o.s. · USPSAviation regulated liquid, n.o.s. 9 UN3334 n/a 9C 9C
• Aviation regulated solid, n.o.s. · USPSAviation regulated solid, n.o.s. 9 UN3335 n/a 9C 9C
• Azaurolic, acid (salt of), (dry) · USPSAzaurolic, acid (salt of), (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• Azido guanidine picrate (dry) · USPSAzido guanidine picrate (dry) Forbidden Prohibited Prohibited Prohibited Prohibited
• Azido hydroxy tetrazole (mercury and silver salts) · USPSAzido hydroxy tetrazole (mercury and silver salts) Forbidden Prohibited Prohibited Prohibited Prohibited
• Azidodithiocarbonic acid · USPSAzidodithiocarbonic acid Forbidden Prohibited Prohibited Prohibited Prohibited

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