Passengers unaware of the Transportation and Security Administration (TSA) restrictions on liquids may find themselves missing their flights or subject to additional searches and delays. After the terrorist attacks of September 11, 2001 strict guidelines were placed by the TSA on the amount of liquids, gels and creams travelers are permitted to bring in carry-on checked baggage. All airlines are required to follow these regulations and may, at their discretion, place additional restrictions on items. If you are traveling by air, follow these guidelines (accurate as of March 2010) carefully to ensure a smooth transition through security check points. Check with your airline before you fly to see if they have any additional restrictions.
The 3-1-1 carry-on rule established by TSA sums up the basic rules for carrying liquids on board the plane. The three stands for 3.4 ounces, the maximum size container of liquid allowed in a carry-on. Examples of items that must be in a 3.4 ounce or smaller container are shampoo, lotion, toothpaste, perfume and hairspray. Place all items into one clear resealable plastic bag (the first "one" of the rule). TSA specifies that the bag must be zip-top and 1 quart size (the second "one"). Travelers must place the plastic bag onto the conveyor at the security checkpoint for inspection and X-ray.
The 3-1-1 rule applies to all liquids, gels and creams with the exception of prescription medications, baby formulas and baby drinks when a child is boarding, and any liquid item that may be vital to the traveler during the flight. If you are uncertain whether an item is allowed, contact the airline to ask if it is permitted. If you will be carrying items that are an exception to the 3-1-1 rule, do not place them in the zip-top bag with your other liquids. Notify the security screening agent of the items you are carrying that are exempt from the 3-1-1 rule.
Only alcohol or liquor bought after passing the security checkpoint can be carried on board the airplane. TSA also has strict guidelines for acceptable alcoholic items. The item must be in the original retail packaging, cannot exceed 140 proof, and only 5 liters may be carried on per passenger.
Since the 3-1-1 Carry-on Rule was established, most airports sell containers of acceptable toiletries and over-the-counter medicines that meet guidelines. Items purchased after passing the security checkpoint are acceptable to carry on the airplane.
