Small propane tanks should never be disposed of in regular household trash or recycling bins due to safety hazards related to their pressurized contents. The safest way to dispose of small propane tanks is to take them to a designated household hazardous waste drop-off site or a propane tank recycling center. Many local fire halls, hazardous waste facilities, or certain retailers offer free or low-cost take-back programs specifically for propane tanks under 30 pounds. It is important not to puncture, crush, or try to empty the tanks yourself as this can cause explosions or fire hazards. If the tank is confirmed empty, some areas allow disposal in the trash, but only after ensuring all gas is released safely, often by connecting the tank to its appliance and running it until empty. In summary:

• Take small propane tanks (<30 lbs) to hazardous waste drop-off locations or propane retailers with recycling programs.
• Do not put tanks in regular trash or recycling carts.
• Do not puncture or crush tanks yourself.
• If unsure or large tanks, contact propane suppliers or waste authorities for safe disposal instructions.
• Consider donating new or lightly used tanks to outdoor groups if possible.

This approach ensures safety and environmental care when disposing of small propane tanks.