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Hazard Class
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Type
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Common Examples
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Domestic
|
Int'l
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Domestic Mail
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Additional Information
|
|
Air
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Sur.
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DMM
|
Pub 52
|
|
Hazard Class 1 Explosives
|
|
|
Explosives
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Fireworks, dynamite, grenades, small arms ammunition
|
N
|
N
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N
|
|
|
All explosives are prohibited except as specified in DMM 601.10.0.
|
|
Hazard Class 2 Gases (Under Pressure)
|
|
|
Flammable
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Hairspray (in aerosol can)
|
N
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Y
|
N
|
|
|
|
|
Propane, camp stove fuel
|
N
|
Y
|
N
|
|
|
|
|
Spray (in aerosol can)
|
N
|
Y
|
N
|
|
|
|
|
Non-Flammable
|
Fire extinguishers
|
Y
|
Y
|
N
|
|
|
Fire extinguishers containing methyl bromide prohibited.
|
|
Nitrogen, compressed air
|
Y
|
Y
|
N
|
|
|
|
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Toxic
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Ammonia, chlorine, carbon monoxide
|
N
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N
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N
|
|
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All toxic gases are prohibited.
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|
Hazard Class 3 Flammable and Combustible Liquids
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|
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Flammable Liquids (Flashpoint not more than 141� F)
|
Acetone, rubbing alcohol, witch hazel
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N
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Y
|
N
|
|
|
ORM-D1 only (dependent on flashpoint).
|
|
Gasoline and items containing gasoline or gasoline fumes
|
N
|
N
|
N
|
|
|
Gasoline and items containing gasoline or gasoline fumes are always prohibited.
|
|
Paint, paint-related materials
|
N
|
Y
|
N
|
|
|
ORM-D1 only (dependent on flashpoint).
|
|
Cigarette lighter, cigar lighter, lighter fluid (flammable liquid)
|
N
|
Y
|
N
|
|
|
|
|
Combustible Liquids (Flashpoint above 141� F and below 200� F)
|
Diesel fuel, kerosene
|
Y
|
Y
|
N
|
|
|
ORM-D1 only. Flashpoint must be greater than 141�F.
|
|
Waxes & polishes
|
Y
|
Y
|
N
|
|
|
ORM-D1 only (dependent on flashpoint).
|
|
Adhesives, cements, and glue
|
Y
|
Y
|
N
|
|
|
ORM-D1 only (dependent on flashpoint).
|
|
Perfumes and colognes (liquids)
|
N
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Y
|
N
|
|
|
ORM-D1 only (dependent on flashpoint).
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|
Hazard Class 4 Flammable Solids
|
|
|
Flammable Matches
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Card matches, book matches, safety matches
|
N
|
Y
|
N
|
|
|
|
|
Flammable Matches
|
Strike anywhere matches
|
N
|
N
|
N
|
|
|
Prohibited.
|
|
Spontaneously Combustible
|
Iron oxide
|
N
|
Y
|
N
|
|
|
|
|
Dangerous When Wet
|
Aluminum powder, calcium, lithium, sodium
|
N
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Y
|
N
|
|
|
|
|
Hazard Class 5 Oxidizing Substances, Organic Peroxides
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|
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Oxiders/Organic Peroxides
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Ammonium nitrate, fertilizer, swimming pool chemicals
|
Y
|
Y
|
N
|
|
|
ORM-D1 only—Friction tops unacceptable.
|
|
Hydrogen peroxide (less than 20% solution
|
Y
|
Y
|
N
|
|
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No restrictions up to 8%. Solution strength up to 20% is acceptable, if ORM-D1only.
|
|
Hazard Class 6 Toxic Substances
|
|
|
Poisons
|
Tear gas (except those containing oleoresin capsicum)
|
N
|
N
|
N
|
|
|
All irritants are prohibited.
|
|
Flea collars, cyanide, pesticides & herbicides
|
|
N
|
N
|
|
|
|
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Infectious Substances
|
|
Nonifectious Specimens
|
Blood, urine, saliva, stool
|
Y
|
Y
|
|
|
|
Must be properly packaged.
|
|
Biological & Medical Materials
|
Used sharps, medical devices
|
Y
|
Y
|
|
|
|
Items must be properly packaged for mailing; some require approval before mailing.
|
|
Hazard Class 7 Radioactive Material
|
|
|
Radioactive Materials
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Devices containing radioactive materials
|
N
|
Y
|
|
|
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Items must be properly packaged. International mail requires approval before mailing.
|
|
Hazard Class 8 Corrosives
|
|
|
Liquid and Solid
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Batteries with liquid electrolyte, hydrochloric acid
|
N
|
N
|
N
|
|
|
Nonspillable batteries may be permitted per DMM 601.10.19.
|
|
Primary lithium batteries (small non-rechargeable consumer-type batteries)
|
|
Y
|
Y
|
|
|
5 pound maximum weight without equipment, 11 lbs. maximum weight with equipment. Lithium content restrictions, see 601.10.20.7.
|
|
Secondary lithium-ion batteries (small rechargeable consumer-type batteries)
|
Y
|
Y
|
Y
|
|
|
|
|
Mercury, mercury-containing items (thermometer, etc.)
|
N
|
N
|
N
|
|
|
Mercury and items containing mercury are always prohibited.
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Hazard Class 9 Miscellaneous Hazardous Materials
|
|
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Miscellaneous
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Dry ice
|
Y
|
Y
|
N
|
|
|
5 lbs. maximum for air (surface may exceed 5 lbs.) (Proper forms/warning labels required for air only).
|
|
Magnets, magnetized materials
|
Y
|
Y
|
Y
|
|
|
Depends on magnetic strength.
|
|
Restricted Matter
|
|
|
Firearms
|
Handguns (concealable fire arms)
|
|
|
|
|
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Except between authorized parties; international mail subject to ICL restrictions/prohibitions. No content markings on outside of mailpiece are permitted.
|
|
Rifles, shotguns, antique guns (unloaded)
|
Y
|
Y
|
Y
|
|
|
No content markings on outside of mailpiece are permitted. Ammunition strictly prohibited.
|
|
Tobacco
|
Cigarettes, smokeless tobacco
|
N2
|
N2
|
N
|
|
TBD
|
Except between eligible parties; mail markings required; Express Mail service only (excluding Alaska and Hawaii). See DMM for full requirement.
|
|
Inert-Replica Explosive Devices
|
Replica hand grenades
|
Y2
|
N
|
N
|
|
TBD
|
Registered Mail service only; mail markings required.
|
|
Human Ashes
Animal Ashes
Pet Ashes
|
Cremated remains
|
Y
|
Y
|
Y
|
N/A
|
|
Registered mail required. International mail subject to ICL6 restrictions/prohibitions.
|
|
Intoxicating Liquors
|
Wine, bourbon, vodka, liquor, beer
|
N
|
N
|
N
|
|
|
Includes 0.5% alcohol content or greater.
|
|
Motor Vehicle Master Keys
|
Including locksmithing devices
|
Y
|
Y
|
N
|
|
|
Only if sent between authorized parties.
|
|
Odor-Producing Materials
|
Food, non-toxic inks and dyes, paper
|
N
|
N
|
N
|
|
|
Not considered hazardous material.
|
|
Controlled Substances
|
Narcotics
|
|
|
N
|
601.12.11
|
|
Generally, both the mailers and the addressee must meet special conditions.
|
|
Drugs
|
Prescription, non-prescription medicines, medications, prescription drugs
|
Y
|
Y
|
Y
|
|
|
No content markings on outside of mail piece permitted. ICL6 restrictions/prohibition apply for international mail. Must meet state and federal laws.
|
|
Drug Paraphernalia
|
Illegal drugs, pipes
|
N
|
N
|
N
|
|
|
See Controlled Substance Act for more information on drug paraphernalia.
|
|
Battery-Powered Devices
|
Toys, clocks (operated by household-use-type battery
|
Y
|
Y
|
Y
|
|
|
|
|
Sharp Instruments
|
Knives, razors, switchblades
|
Y
|
Y
|
Y
|
|
|
Only if sent between authorized parties. International mail subject to ICL6 restrictions/prohibitions for each country.
|
|
Perishable Matter Animals
|
|
|
Bees
|
Honey bees (Queen bees)
|
Y
|
Y
|
Y
|
|
|
Disease-free queen bees may be accompanied by up to eight attendants by air. Honeybees without queen bees, surface only.
|
|
Adult Birds acceptable
|
Geese, turkeys, guinea fowl, doves, pigeons, pheasants, partridges, quail, ducks, chickens, swans
|
Y
|
Y
|
N
|
|
|
Disease-free geese, turkeys, guinea fowl, doves, pigeons, pheasants, partridges, quail, ducks, chickens, swans.
|
|
Adult Birds unacceptable
|
All other types of birds not listed above, such as canaries, parakeets, parrots
|
N
|
N
|
N
|
|
|
Prohibited.
|
|
Day-old Poultry
|
Chicks, ducks, geese, quail, partridges, pheasants (April through August), turkeys
|
Y
|
Y
|
N
|
|
|
Day-old poultry vaccinated with Newcastle disease (live virus) is nonmailable.
|
|
Dead Animals
|
Dried parts of game birds or fish
|
Y
|
Y
|
|
|
|
Includes hides and furs. International mail subject to ICL6 restrictions/prohibitions. If dry ice is used, see DMM 601.9.4.
|
|
Live, cold blooded
|
Goldfish, crickets, worms
|
Y
|
Y
|
N
|
|
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Some exceptions.
|
|
Reptiles
|
Snakes, turtles
|
N
|
N
|
N
|
|
|
Nonmailable.
|
|
Live, warm blooded
|
Hamsters, mice, cats, rabbits, dogs, guinea pigs, or rats
|
N
|
N
|
N
|
|
|
Some adult birds permitted in domestic mail. See DMM 601.9.3.6.
|
|
Scorpiuons (live)
|
Scorpions
|
N
|
Y
|
N
|
|
|
Only for medical research or manufacture of antivenin.
|
|
Perishable Matter Food
|
|
|
Meats and Meat products
|
Fresh meat & fish. Frozen meat & fish.
|
Y
|
Y
|
|
|
|
International mail subject to IC6 restrictions/prohibitions. If dry ice is used, see DMM 601.9.1.
|
|
Fresh Foods
|
Fruits, vegetables
|
Y
|
Y
|
|
|
|
International mail subject to IC6 restrictions/prohibitions. If dry ice is used, see DMM 601.9.1.
|
|
Plants
|
Trees, citrus, cactus
|
Y
|
Y
|
|
|
|
International mail subject to ICL6 restrictions/prohibitions. USDA regulations/prohibitions apply.
|
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