There are some items you can’t ship with USPS—no exceptions!
Be sure to read all the USPS rules if you want to ship anything that might be dangerous. Following the rules is your responsibility as the shipper.
You’ll notice that all prohibited domestic items are also prohibited from being shipped internationally. However, some items are only prohibited internationally and not domestically (such as aerosols and dry ice).
Prohibited Domestic Items
Air bags
Alcoholic Beverages
Ammunition
Explosives
Gasoline
Marijuana (medical or otherwise)
Mercury
Prohibited International Items
Aerosols
Air Bags
Alcoholic Beverages
Ammunition
Cigarettes (these include electronic cigarettes, e-cigars, vaping products, and any components associated with these devices)
Dry Ice
Explosives
Flammable Liquid
Fresh Fruits and Vegetables
Gasoline
Lighters
Marijuana (medical or otherwise)
Nail Polish
Perfumes (containing alcohol)
Poison