Disclaimer: We aren’t the post office and can’t be considered an authority on these regulations. Always check with them as well if you’re not sure!
- Explosives
- Infernal machine (Bombs)
- Fireworks
- Dynamite
- Grenades
- Ammunition
- Replica explosives (not dangerous)*
- Toy propellant devices and safety fuses*
- Toxic Liquids and Gasses
- Flammable Gas*
- Non Flammable Gas*
- Toxic Gas
- Ammonia
- Chlorine
- Cleaning Supplies* -
- Pool Chemicals
- Flamable and Combustable Liquids (some can be mailable dependant on flashpoint, if they qualify as ORM-D materials and are under a certain volume)
- Acetone
- Rubbing alcohol
- Witch Hazel
- Gasoline
- Gasoline containers
- Items that have contained gasoline
- Diesel fuel
- Kerosene
- Aerosols
- Propane
- Spray paint
- Many Paints & paint related materials
- Many Waxes and Polishes
- Many Adhesives and Cements
- Cigarette lighters
- Flamable Substances
- Strike anywhere matches
- Book matches*
- Materials likely to cause fire do to friction or absorbing moisture or spontaneous chemical change.
- Readily ignited materials that burn intensely
- ORM-D materials*
- Oxidizing Substances
- Oxidizing substances*
- Organic peroxide*
- Dangerous when wet
- Aluminum powder
- Calcium -
- Lithium
- Sodium
- Poisons
- Irritants
- Flea collars*
- Pesticides*
- Herbicides
- Infectious Substances
- Category A Infectious substances
- Toxins- Category A
- Forensic material- Category A
- Corrosives
- Acid and Alkali
- Batteries with liquid electrolyte, hydrochloric acid
- Mercury and mercury containing items (thermometers)
- Intoxicating Liquors
- Wine
- Beer
- Vodka
- Bourbon
- Liquids and Powders
- Liquids and semisolids*
- Powders*
- Odor Producing
- Food
- Decaying matter
- Some scented products
- Non-toxic Inks and dyes
- Some paper
- Radioactive materials
- Properly labeled Radioactive materials*
- Drug Paraphernalia
- Illegal drugs
- Pipes
- Bongs
- Miniature spoons
- Cocaine freebase kits
- Certain Adult Birds
- Canaries
- Parakeets
- Parrots
- Unauthorized surveillance equipment- equipment with a primary function of surreptitiously intercepting wire, oral or electronic communications.
- Listening devices
- Wiretapping devices
- Electronic eavesdropping equipment
- Live Reptiles
- Snakes
- Turtles
- Live warm-blooded animals
- Hamsters
- Mice
- Cats -
- Rabbits
- Dogs
- Guinea Pigs
- Rats
- Miscellaneous Hazards
- Dry Ice*
- Lithium cells and batteries*
- Magnetized materials*
- Other non-allowed materials
- Abortive devices
- Building construction materials
- Fragrance samples*
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