Empty CO2 tanks before packaging for shipment. The tanks must be completely empty to avoid bursting, which can occur at high altitudes.
Identify and label the CO2 tank to make sure the shipping company is aware of the contents. If you are unsure of the shipping company's policy for handling compressed gas, contact a service representative for more information.
Contact the shipping company to pick-up the CO2 tanks.
Ask about restrictions, when shipping packages outside of the continental US.