What is the TSA limit for 3-1-1?

You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.



The TSA's 3-1-1 rule is the standard for carrying liquids, gels, and aerosols through airport security in your carry-on luggage. The "3" refers to the maximum size of each container, which is 3.4 ounces (100 milliliters). The first "1" indicates that all these containers must fit inside one clear, quart-sized, zip-top bag. The second "1" means that each passenger is limited to one bag per person. If you have a bottle that is larger than 3.4 oz, even if it is only half full, it will generally be confiscated. In 2026, while some modern airports have installed advanced "CT scanners" that allow you to leave liquids in your bag, the 3-1-1 rule still applies to the amount of liquid you can bring. Exceptions are made for "medically necessary" liquids, breast milk, and baby formula, which can be in larger quantities but must be declared and screened separately. Always ensure your 3-1-1 bag is easily accessible, as you may still be required to place it in a bin for X-ray inspection.

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Liquids, gels and aerosols packed in carry-on must follow the 3-1-1 liquids rule: 3.4 ounces or less per container. 1 quart size, clear, plastic, zip top bag (all liquids must fit in bag) 1 bag per passenger.

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In response, officials banned liquids altogether and then, after laboratory testing here and abroad, came up with the formula of limiting liquids and gels to three-ounce containers in a single quart-size bag ?as a way to allow for people who wanted to bring liquids on board,? Mr. Hawley said.

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The TSA's liquid limit for carry-ons—known as the 3-1-1 rule—allows travelers to pack liquids, aerosols, gels, creams, and pastes under 3.4 ounces (100 milliliters) in their carry-on bags. Passengers are allowed up to one quart-sized bag per person, or roughly nine 3.4-ounce containers in a single quart-sized bag.

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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.

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Most domestic airlines specify 22 inches by 14 inches by 9 inches as the maximum size for carry-on baggage. There are some exceptions as listed below in our airline specific summary. Maximum dimensions include the wheels and the handles of your bag, so factor those into your measurements when assessing your bag.

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TSA Rules For Flying With Lipstick
When it comes to lipstick, the TSA considers it a solid, not a liquid or gel, which means it's allowed in both carry-on and checked baggage. However, there are some restrictions to keep in mind.

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The TSA prohibits containers with more than 3.4 ounces of liquid in carry-on luggage, so if you have a liquid or semi-liquid antiperspirant, be sure to check the quantity on the container. For example, many stick deodorants and antiperspirants come in sizes under 3.4 ounces, so it's fine to bring in your carry-on bag.

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Is Mascara Considered a Liquid by TSA? TSA counts mascara as a liquid, so the 3-1-1 rule for packing it in hand luggage applies. It states that all liquids have to be in 3.4 oz (100 ml) bottles or smaller and packed in a 1-quart bag. Mascara usually isn't above 3.4 oz, so you're free to pack it in your hand luggage.

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Safety Razors: Because the razor blades are so easy to remove, safety razors are not permitted in your carry-on luggage with the blade. They're fine to pack in your carry-on without the blade. The blades must be stored in your checked luggage.

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Disposable razors, replacement blades, and electric razors can go in either your carry-on or checked baggage; if you have a safety or straight razor, you can pack it in your carry-on — but you must remove the blades first and pack them in one of your checked bags.

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Inform the TSA officer at the beginning of the screening process that you're carrying them, says Mayle. These liquids are typically screened by X-ray, but TSA officers may also test them separately for explosives or concealed prohibited items.

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The ban was put in place after British authorities thwarted a plan to blow up a U.S.-bound plane with liquid explosives. There is now technology to send that ban down the drain. Airports across the U.S. are now using X-ray scanners that use CT technology to give guards a 3-D image of your carry-on.

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