Many travelers are confused by the dynamic nature of carry-on baggage regulations imposed by the Transportation Security Administration (TSA).  For any liquids brought on-board an aircraft in carry-on baggage, the TSA has instituted its simplistic 3-1-1 policy, a program that has gained international acceptance.

So, what is the 3-1-1 carry-on program and what does it mean?

The 3-1-1 carry-on program restricts the amount of liquids, gels and aerosols each traveler can bring into an aircraft cabin.  These rules were developed following a 2006 thwarted liquid explosive bomb plot in the United Kingdom.  The program’s three basic rules are:

• 3 – All liquids, gels and aerosols must be in 3.4 ounce or smaller containers
• 1 – Containers must be placed in a one quart-size, clear, plastic, zip-top bag, which must be removed from carry-on luggage and placed in a security bin at airport checkpoints.
• 1 – Only one zip-top bag is permitted per traveler.

Medications, baby formula and food, and breast milk are the only allowable exceptions to the above rules and can exceed the 3.4 oz rule.  Quantities must in reasonable amounts and are not required to be in the zip-top bag, however these items must be declared for inspection at the security checkpoint.  Any other liquid products in amounts above the allowable amount must be packed in your checked luggage.