When we flew to St Lucia to meet Matt we put our PFD's in the carry on and I had the canisters removed but loose in the vest. Two TSA screeners looked at my wifes vest and quickly said "nope", one didn't seem to know what the vest was. I politely asked to see a supervisor because I wanted them to read the TSA policy I had brought with us. The supervisor was also pretty quick to start shaking her head no, but once she read the policy she said "per this they are good!" They see a lot of questionable items I'm sure, the printout might help them remember some obscure memo they read regarding "Auto-PFD's"
More importantly, we dropped one of the canisters at TSA and didn't realize the ring had cracked and it wouldn't work once on St Lucia. Luckily Matt had a spare. Take a spare with you! <img src="http://www.traveltalkonline.com/forums/images/graemlins/toast.gif" alt="" />
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