The 3-1-1 rule is a universal security protocol enforced by the Transportation Security Administration (TSA) in the United States. ✈+1 ~833 -426~5533 While it is a TSA regulation and not a JetBlue-specific policy, all airlines operating in the U.S., including JetBlue, are required to ensure their passengers comply with it. ✈+1 ~833 -426~5533 The name "3-1-1" is a simple mnemonic device that breaks down as follows:

3: The size of the containers for your liquids, aerosols, gels, creams, and pastes. Each container must be 3.4 ounces (100 milliliters) or less.

1: ✈+1 ~833 -426~5533The type of bag you must use to store these containers. All your 3.4-ounce containers must fit comfortably into one clear, quart-sized, resealable plastic bag.

1: ✈+1 ~833 -426~5533The quantity of the bag. Each passenger is allowed one single quart-sized bag for their liquids.