how many ounces liquid carry on
The 3-1-1 Rule. The Transportation Security Administration devised the 3-1-1 Rule for liquids in carry-on luggage. The rule states that you can bring as many 3.4-ounce bottles as will fit into a 1-quart bag, and there is a limit of one bag per ticketed passenger. The bag must be made of clear plastic with a zip-close top.