I recently visited Miami for a golf round at Doral, and was very pleased to find out that you can vape in the airport with no problem. I approched a Immigration officer and asked him what the policy on vaping was. He replied that Miami International has no policy on vaping, but you do have to run your pv through customs so that they can x ray it. You also must carry less than 5ml of liquid with you because the FAA and airport security standard for liquid is very strict. I vaped everywhere in Miami and there was no problem what so ever. Two thumbs up for Miami!!!!

