The one bag lim­it per trav­el­er lim­its the total amount each trav­el­er can bring. Con­sol­i­dat­ing the bot­tles into one bag and X‑raying them sep­a­rate­ly from the car­ry-on bag enables secu­ri­ty offi­cers to quick­ly clear the items.

311 for carry-ons

  • 3.4 ounce (100ml) bot­tle or less (by volume).
  • 1 quart-sized, clear, plas­tic, zip-top bag.
  • 1 bag per pas­sen­ger placed in screen­ing bin. 

One-quart bag per per­son lim­its the total liq­uid vol­ume each trav­el­er can bring. 3.4 ounce (100ml) con­tain­er size is a secu­ri­ty measure.

Be pre­pared.

Each time TSA search­es a car­ry-on it slows down the line. Prac­tic­ing 311 will ensure a faster and eas­i­er check­point experience.

311 is for short trips.

If in doubt, put your liq­uids in checked luggage.

Declare larg­er liq­uids. Med­ica­tions, baby for­mu­la and food, and breast milk are allowed in rea­son­able quan­ti­ties exceed­ing three ounces and are not required to be in the zip-top bag. Declare these items for inspec­tion at the checkpoint.

For com­plete secu­ri­ty infor­ma­tion, please vis­it the TSA web­site.