When traveling by plane, there are specific rules regarding the size of toiletries that can be taken on board. According to the Transportation Security Administration (TSA), passengers are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams, and pastes in their carry-on bag, with each item limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less. It is recommended to pack all liquids, gels, and aerosols that are over 3.4 ounces or 100 milliliters in checked baggage, even if they are in a secure, tamper-evident bag. Additionally, duty-free liquids in secure, tamper-evident bags, more than 3.4 oz or 100 ml, are allowed in carry-on bags under certain conditions.
The 3-1-1 rule, which is commonly referred to in relation to the size of toiletries allowed on planes, stipulates that each passenger may carry liquids, gels, and aerosols in travel-size containers that are 3.4 ounces or 100 milliliters, and each passenger is limited to one quart-size bag of such items. This rule was established as a security measure following a foiled plot by al-Qaeda operatives to set off bombs on airplanes using liquid explosives.
Its important to note that the TSA and international airport security define substances such as aerosols, gels, creams, and pastes as liquids, so items like toothpaste, shampoo, conditioner, mouthwash, and lotion must comply with the 3-1-1 liquids rule. Solid shampoo, perfumes, and soaps are exceptions to this rule and do not need to comply with the 3-1-1 requirements.
In summary, when packing toiletries for air travel, its essential to adhere to the 3-1-1 liquids rule, ensuring that all liquids, gels, and aerosols are in travel-sized containers of 3.4 ounces or 100 milliliters or less, and that they are placed in a quart-sized bag for screening at the airport.
