1. Travel
You can opt-out at any time. Please refer to our privacy policy for contact information.

3-1-1 Rule for Liquids in Carry-On Bags


TSA Introduces Pre-Screening Pilot Program For Some Passenger Groups
Joe Raedle/Getty Images News/Getty Images

The 3-1-1 Rule refers to the Transportation Security Administration's rule for how much liquid travelers can take on an airplane in their carry-on bags. It does not prohibit you from putting larger sizes of liquids in your checked baggage.

3-1-1 refers to:

- Each liquid you want to carry on must be in 3.4 ounce (or less) container. That's the "3"

- The containers must be in 1 clear quart-sized plastic bag. That's a "1"

- Each passenger is allowed only 1 bag. That's the second "1"

The clear plastic bag limits the total amount of liquid you can take to what fits in the bag.
  1. About.com
  2. Travel
  3. Business Travel
  4. Airlines & Airports
  5. Tips and Tools
  6. 3-1-1 Rule for Liquids in Carry-On Bags

©2014 About.com. All rights reserved.