TSA guidelines state that travellers may only bring liquids, gels, and aerosols in containers that are 3.4 ounces (100 millilitres) or less. These containers need to be put in a quart-sized transparent plastic bag. There is a limit of one bag of this size per traveller. It's crucial to remember that these limitations apply to carry-on luggage. You can put bigger liquid containers in your checked luggage if you're checking it. However, both carry-on and checked luggage are not allowed to include some dangerous goods including flammable liquids. Please note that TSA liquid limit rules and practices are subject to change, so it's a good idea to confirm the most recent information with the TSA or the individual airline you're travelling with before your trip.