The TSA has implemented a rule regarding liquids, gels, and aerosols that can be brought through airport security checkpoints in carry-on bags. This TSA liquid rule specifies that such items must be contained in individual containers that do not exceed 3.4 ounces (100 millilitres) each, and that all containers must fit within a single, clear, quart-sized, plastic, resealable bag. Passengers are limited to one such bag per carry-on item, and the bag must be placed in a bin or on the conveyor belt for X-ray screening.