The Transportation Security Administration, most commonly known as the TSA, is a United States government agency that is responsible for screening luggage and protecting the transportation system. In those efforts, the TSA imposes restrictions on the fluid ounces an individual can carry on a plane.
This limitation and its scope are clearly defined in the 3-1-1 rule. However, it can be complex to understand for first-time and sometimes for seasoned air travelers.
In this article, we’ll discuss the probable aspects concerning the carriage of fluid ounces on a plane so you can experience a hassle-free screening and pass through TSA checkpoint.
Everything You Need to Know about TSA’s 3-1-1 Rule
The TSA has limited the quantity of fluid ounces you can carry on a plane. This generally applies to liquids, aerosols, and gel packs of all sorts. The 3-1-1 rule efficiency sums up the requirements and following it can help you pack accordingly.
The fluid limit rule for carry-on states that an individual can only carry 3.4 ounces (100 milliliters) of liquid, gels, and aerosols per container. This quantity is under the international rule of carrying 100 milliliters. Breaking down the “3-1-1” part, the 3 stands for 3.4 ounces. Furthermore, the first 1 indicates that all 3.4-ounce containers must be placed in a clear ONE-quart bag (an average bag should be “7” by “8” to avoid problems with TSA). The last 1 specifies that each passenger is allowed ONE bag in total. Other than that, containers exceeding the 3.4-ounce limitation must be in a checked bag.
According to the TSA, all substances that can be spread, sprayed, and squeezed will be subject to the 3-1-1 rule.
Some general examples are listed below:
- Toothpaste
- Shampoo
- Conditioner
- Mouthwash
- Hand sanitizer
- Lotion
- Hair spray
- Peanut butter
- Creams
Why has the TSA Implemented Restrictions on Carrying Fluid Ounces?
Despite its complexity, the limitation is imperative for the protection of all the passengers and relevant parties. This rule was initially levied in 2006 when the airport security uncovered al-Qaeda’s plans regarding a potential terrorist plot. The plan was to carry bomb materials in plastic bottles and set them off using liquid explosives. When the government found out about this, they implemented the 3-1-1 rule as a prevention and protection measure.
How Can You Measure Fluid Ounces
If you are unsure about the measuring part of packing fluid ounces, there are some simple things to remember. Firstly, make sure to note that the TSA has placed a limit on the size of the container rather than the material inside. Meaning, that your 3.4-ounce container might as well contain 1-2 ounces of content inside.
With that in mind, you can check the container’s size by checking the label. If the label isn’t there, you can use the docker inspect command. This tool matches multiple types of objects and it can help you determine the size of your container.
International travelers who have a different unit of measurement can go with the 100-milliliter approach and pack accordingly.
Efficient Ways to Pack Liquids, Gels, and Aerosols
Here are some packing strategies that can further help you out at the security checkpoint:
- Use a clear quart-sized bag: you are recommended to use a zip-top resealable bag that is sized one-quart. Your screening process will be accelerated if the bag is clear (transparent) and follows the size restriction. Your carry-on can only contain ONE quart-size bag.
- Travel-sized containers: The liquids, gels, and aerosols inside the clear plastic bag must be in 3.4-ounce containers. The larger containers need to be placed in the checked bag.
- Only carry essentials: in order to ensure a quick and worry-free experience, only pack the necessary liquids. Toiletries, medicines, and cosmetics might be important but if you can easily get something at your destination then don’t carry it in your carry-on bag.
- Share the bag: in case you are traveling with a companion, don’t miss a chance to share the bag!
What Are The Exceptions to the 3-1-1 Rule?
Moving on, there are some exceptions to the previously specified 3-1-1 rule. The periphery of this restriction is quite flexible and it can cater to special cases and extreme circumstances. If the passenger can justify their reasoning and show proof of valid reason then they can carry a larger container.
Some examples of this exception include the following:
- Ice, gel, or freezer packs used to keep breast milk, infant formula, or medically necessary items cool
- Medical prescriptions that come in liquid, gel, or cream forms
- Baby formula, toddler drinks and food items, including puree pouches
- Baby food; breast milk and infant formula
However, TSA officers or security officers must be informed of this. If there are any items that you don’t want passed through the x-ray machine (break milk or infant formula), make sure to take full responsibility and tell the relevant TSA agent.
What are The International Travel Restrictions on Fluid Ounces?
International travel restrictions may pose more specifications than the original 3-1-1 rule. For instance, international flights require that the four sides of the bag must not add up to more than 80 cm.
Another possible hiccup can occur in the form of the fluid’s content itself. When you are traveling internationally, make sure to check the destination country’s legal requirements. Your liquid/fluid/substance may be allowed in one country but prohibited in another. For instance, Islamic countries do not allow alcohol and it is confiscated during customs. If you wish to avoid last-minute surprises, learn about the restrictions on that particular country’s gov website and be prepared.
Checking with the specific airline on their official website may help too.
Frequently asked questions
Are frozen liquid products subject to the 3-1-1 rule?
As long as the fluid is completely frozen, the 3-1-1 liquid rule won’t apply to it. Slushy and partially melted liquids do not count here as they will be considered liquids regardless.
Are important medicines subject to the 3-1-1 rule?
While prescription medicines may be excused from the TSA liquid limit in case of special circumstances, non-prescription medicines will fall under the criteria.
What happens if you carry a prohibited item?
In case you bring a prohibited item in your carry-on luggage (or checked bag), you can face severe consequences including but not limited to missed flight and even arrest.
Which liquids are prohibited for air travel by the TSA?
The TSA doesn’t allow the following items in either carry-on bags or checked bags due to their dangerous nature.
- Fertilizer
- Insecticide
- Alcoholic Beverages over 70% ABV
- Aerosols that are not toiletries
- Flammable liquids
- Toxic liquids
- Bleach
Final Thoughts
The TSA’s fluid-ounce limitation is an important part of traveling and the screening process. If you want to pass through security checks without any hassle, make sure to comply with the liquid limits and follow the regulations.
The 3-1-1 rule is in accordance with international standards, meaning it’s efficient and useful on a larger scale. We hope this article helped you understand how you can pack fluid ounces properly. If you have any other questions, feel free to ask us and we’ll be happy to help. Good luck on your next trip!
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