TSA: 3-1-1 for Carry-ons rule

3-1-1 for Carry-ons

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When processing through a screening checkpoint, each traveler is allowed one bag in order to limit the total volume of liquids, aerosols and gels. Consolidating products into one bag and X-raying them separately from the carry-on bag enables security officers to quickly clear all items.

3-1-1 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 3-1-1 will ensure a faster and easier checkpoint experience.

3-1-1 is for short trips. If in doubt, consider putting 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. Officers may need to open these items to conduct additional screening.

Inbound international changes

Beginning January 31, 2014, passengers traveling internationally into the United States with a connecting flight will be permitted to carry liquids in excess of 100 mL in their carry-on baggage, provided they were purchased in duty-free shops and placed in secure, tamper-evident bags (STEBs).

Technological advances may allow passengers to keep these liquids in their carry-on baggage, provided they are presented in a STEB and are able to be screened and cleared by Transportation Security Officers at the checkpoint.

Liquids that cannot be screened and cleared will not be allowed to remain in a passenger’s carry-on baggage. Passengers may elect to place these items into checked baggage, if available, or forfeit them prior to entering the secure area of the airport. This may include liquids in opaque, ceramic, or metallic bottles, or other containers that cannot be effectively scanned.

Latest revision: 27 January 2014