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Hazardous materials include many common items from your home, workshop, or garage which, because of the physical or chemical properties, can pose a danger during air transportation. The following is a partial list of common items that are strictly forbidden in carry-on or checked baggage:

- Mace, tear gas, and other irritants
- Aerosols containing flammable material
- Loaded firearms
- Gunpowder and primers
- Loose ammunition
- Gasoline, diesel, or kerosene
- Propane, butane cylinders or lighter refills
- Wet-type batteries (as used in cars)
- Safety or "strike-anywhere" matches
- Corrosive material
- Infectious substances
- Radioactive material
- Any equipment containing fuel