Can you send safety matches through USPS mail?

Not *legally*.

If there's a problem, they won't be happy... but in general, it's not goingto be a problem. You never heard it from *me* though.

"Harmful Matter-GeneralExcept as provided in this document, any article, composition, or material is nonmailable if it can kill or injure another or injure the mail or other property. Harmful matter includes, but is not limited to:

a.All types and classes of poisons, including controlled substances.

b.All poisonous animals except scorpions mailed for medical research purposes or for the manufacture of antivenom; all poisonous insects; all poisonous reptiles; and all types of snakes, turtles, and Spiders.

c.All disease germs or scabs.

d.All explosives, flammable material, infernal machines, and mechanical, chemical, or other devices or compositions that may ignite or explode.

8.6Hazardous MaterialsHarmful matter also includes regulated hazardous materials as defined in10.0 that are likely to harm USPS employees or to destroy, deface, or otherwise damage mail or postal equipment. This includes materials such as caustic poisons (acids and alkalies), oxidizers, or highly flammable liquids, gases, or solids; or materials that are likely, under conditions incident to transportation, to cause fires through friction, absorption of moisture, or spontaneous chemical changes or from retained heat from manufacturing or processing, including explosives or containers previously used for shipping high explosives with a liquid ingredient (such as dynamite), ammunition, fireworks, radioactive materials, matches, or articles emitting obnoxious odors."