With the rules and regulations of airport travel changing frequently in order to keep travelers safe, it can sometimes get tricky knowing what is and isn’t allowed in your bags. The United States Transportation Security Administration (TSA) implements air-travel regulations which all airlines and passengers must follow at all times. To ensure safety, the TSA has placed strict rules on the volume and type of liquids allowed on an airplane. Here are the main rules for liquids so you can get through the airport’s security checkpoint quickly, and avoid having your toiletries and other liquids confiscated all together!

3-1-1 for carry-ons rule – Liquids, gels, aerosols, and creams must be 3.4 ounces (100ml) or less per container, they must be in 1 quart-sized, clear, plastic, zip-top bag, and 1 bag per passenger placed in screening bin. The bag limits the total liquid volume each traveler can bring on board.

Be prepared – Each time a TSA officer stops to physically screen a carry-on bag, it slows down the line. Practicing the 3-1-1 rule will facilitate the checkpoint experience. You also lose the risk of having it taken away and having to replace whatever it was that was confiscated.

The Exception – Medications and baby food/formula are allowed in reasonable quantities exceeding three ounces, and they don’t have to be in the zip-top bag. Declare these items for inspection at the beginning of the checkpoint. TSA officers may need to open them for additional screening, so just be prepared.

When You Aren’t Sure – Place your liquids, gels, aerosols, creams and pastes in checked baggage if you aren’t able to transfer them to a smaller container. There is no volume limit for liquids in checked baggage, but just remember – liquids add a significant weight to your suitcase which could add you an extra fee.