Special Conditions

These are items that can only be sent between authorized parties or under special conditions. These often require permits and special paperwork. Sometimes the contents of these parcels cannot be marked on the outside.

Special Conditions

Sharp Instruments

  • Knives
  • Razors
  • Switchblades

Infectious Substances

  • Category B infectious substance
  • Biological products
  • Cultures
  • Exempt human or animal specimens
  • Patient specimens
  • Regulated medical waste
  • Sharps medical waste
  • Toxin- Category B
  • Used health care product
  • Blood and blood related material
  • Forensic material Category B

Controlled Substances

  • Narcotics
  • Prescription drugs
  • Contraceptive devices


  • Handguns (without ammunition)
  • Rifles
  • Short-barreled shotguns
  • Machine guns and automatic rifles

Motor Vehicle Master Keys

  • Motor Vehicle Master Keys (car keys)
  • Locksmithing devices
  • Lockpicking devices


  • Cigarettes and Smokeless Tobacco

Was that article helpful? We hope so! If it was, you might want to consider just not worrying about sending stuff anymore and try Stamps.com.

Try Stamps.com® Now! OR Read Our Review