If your business has ANYTHING to do with the manufacture, delivery by mail, or retail of cannabis/hemp vaporization products, including liquids, batteries, empty cartridges, etc., you should get familiar with this final rule that is in effect as of October 21, 2021
If packages containing cigarettes, smokeless tobacco or ENDS are identified in the international or military mailstream, transfer the package to the Postal Inspection Services International Mail Security unit at the nearest International Service Center
This is especially important for international travel, where you will be subject to the rules of multiple countries and carriers
Detective Judith Anderson, Michigan State Police, e-mail to Michael LaFaive, February 25, 2004
Whether you're a serious smoker or a casual enthusiast, there's a suitable HQD Miracle for you