Most travelers know you’re limited in what liquids you can bring on a flight, but may not know the exact numbers off-hand. The TSA’s 3-1-1 rule can help.
We’ve all gone through it, even if we have TSA PreCheck or CLEAR. You need to catch an early morning flight, and in your haste, you forgot to finish that cup of coffee or bottle of water before going through the TSA security checkpoint. You then have to either chug the drink or throw it out. That way, you aren’t pulled aside by the security officers and embarrassed in public. Even though we all know that we are limited in what liquids we can bring through security, it’s easy to forget how much is allowed through. Well, the TSA has something called the 3-1-1 rule to help you keep your carry-on liquids down to a minimum.
The 3-1-1 rule has three different components to it, each corresponding to a number. The 3 refers to the amount of liquid you can have in a container, as it cannot exceed 3.4 ounces.
