OK, we have some moderators here that travel extensively and have taken E-liquid and E-cigs on air travel. I am going to try to explain some do’s and don’ts for air travel and the E-cig through TSA check points. Please understand TSA agents are not exactly up to date on their own regulations at times and this is by no means a 100% safety guide for E-cigs and Liquid. This is posted solely from our experience travelling though the TSA check point. Jim D, RIA and I will be updating this. OK, we get a lot of questions concerning E-liquid and having it in your carry-on. Currently there is no restriction with the TSA concerning carrying on E- Liquid or E-cigs through airport security. Now actually using it on board is regulated by individual airlines and not a topic of this post. You are allowed 3.4 Oz in an individual bottle which equals approx 100cc of liquid, we recommend not testing the TSA’s and bringing attention to the E-liquid by pushing the limit and bringing attention to your e-liquid. Try to keep it in 10, 20 or max 30cc bottles. I routinely carry 2 X 15cc and a 3 cc bottle in my carry on. You are allowed to carry rechargeable batteries. I recommend disconnecting the batteries from the atomizer when you have it scanned through the check point, no need to have a accidental fire up of the atty’s during this procedure. OK some links: TSA Liquid carry-on rule: TSA | Transportation Security Administration | 3-1-1 on Air Travel TSA prohibited Items: TSA: Prohibited Items Now for the visuals: This I would not recommend. These are 30cc bottle, just took 2 with me this week and had no problems with TSA. Updated. 20cc you should be fine. 10 and 15cc no problem. 3 to 5cc, I use these for dripping on board. Make sure you put it in a clear 1 quart or 1 liter plastic bag. Batteries and chargers are fine, just pack with your computer, camera, I-pod accessories. Please disconnect atty's from batteries, unplug pass through and for units like the JS take out the atty, actually had a poster get his JS scrutinized at the TSA check point with an atty attached. Now for mods, please use common sense, If it can look dangerous don't carry on, I have heard posters with mods get safely on board but I will not try this, if you do just carry a padded self addressed post paid envelope so if you cannot get through the check point you can mail it back to your home. We will try to keep updating this stickie. Oh this thread is not here to discuss vaping on planes or not!!!