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  • Non-mailable matter
  • Guide Title

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Browse this topic


  • What is non-mailable matter?
  • Illegal mail
  • Solicitations by mail
  • Controlled items
    • Controlled items overview
    • Tobacco and vaping products
    • Firearms
    • Intoxicating beverages
    • Drugs and other controlled substances
    • Medical or biological materials
    • Perishable items
    • Liquids, liquefiable substances, and powders
    • Animals
    • Plants
  • Prohibited items
    • Prohibited items overview
    • Replica or inert munitions
    • Other prohibited items and restrictions
  • Dangerous goods
    • Dangerous goods overview
    • Transportation of dangerous goods classes and index
    • Commodities

Browse this topic


  • What is non-mailable matter?
  • Illegal mail
  • Solicitations by mail
  • Controlled items
    • Controlled items overview
    • Tobacco and vaping products
    • Firearms
    • Intoxicating beverages
    • Drugs and other controlled substances
    • Medical or biological materials
    • Perishable items
    • Liquids, liquefiable substances, and powders
    • Animals
    • Plants
  • Prohibited items
    • Prohibited items overview
    • Replica or inert munitions
    • Other prohibited items and restrictions
  • Dangerous goods
    • Dangerous goods overview
    • Transportation of dangerous goods classes and index
    • Commodities

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Prohibited items overview

Prohibited items include packages whose contents are:

  • Explosive
  • Highly flammable
  • Radioactive
  • Otherwise dangerous

You can never send prohibited items through the mail under any circumstances.

For more information, see Other prohibited items and restrictions.

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