
The Transportation Security Administration (TSA) uses a layered approach to security, with the aim of ensuring the safety of passengers and preventing prohibited items from entering the airport. TSA officers have the final say on whether an item is allowed through the checkpoint, and even if an item is generally permitted, it may be subject to additional screening if it triggers an alarm or poses security concerns. Passengers are expected to remove all items and place them on the X-ray belt for screening, including personal electronic devices larger than a cell phone, which must be placed in a separate bin. Passengers wearing bulky clothing or light outerwear may be asked to divest these garments, and additional screening may be required for those travelling with pets or certain powders.
| Characteristics | Values |
|---|---|
| Items to be placed on the X-ray belt | All items including carry-on bags |
| Items to be removed from carry-on bags | Personal electronic devices larger than a cell phone, 3-1-1 liquids bag, bulky jewelry, shoes |
| Items allowed through TSA PreCheck® | Shoes, laptops, liquids, belts, light jackets |
| Clothing to be removed | Light outer garments or bulky clothing |
| Pet-related instructions | Remove pet from carrying case, place case through X-ray, maintain control of pet with a leash, remove leash when carrying pet through metal detector |
| Powder-like substances | Place powder-like substances over 12 oz. / 350 mL in checked bags |
| Filming and photography | Allowed as long as the screening process is not interfered with and sensitive information is not revealed |
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What You'll Learn

Electronics
Most consumer personal electronic devices containing batteries are allowed in carry-on and checked baggage. This includes cell phones, smartphones, laptops, tablets, cameras, camcorders, watches, calculators, and handheld game consoles. Devices containing lithium batteries should be carried in carry-on baggage. Flight crews are trained to respond to lithium battery fires in the cabin. Passengers should notify the flight crew if their lithium battery or device is overheating, expanding, smoking, or burning. When portable electronic devices with lithium batteries are in checked baggage, they must be completely powered off and protected to prevent unintentional activation or damage.
TSA officers may instruct travelers to remove personal electronic devices larger than a cell phone from their carry-on bags and place them into a bin for X-ray screening. This includes laptops, tablets, e-readers, and handheld game consoles. Officers may ask you to power up your electronic devices, and powerless devices will not be permitted onboard. It is recommended to keep your bag organized to ease the screening process.
The screening process may vary depending on the airport. Some airports have upgraded to 3D X-ray machines that do not require the removal of electronics from bags. However, other airports may require the removal of all electronic devices for separate screening. It is recommended to arrive at the airport early to allow enough time for the screening process.
It is important to note that spare (uninstalled) lithium metal and lithium-ion batteries are prohibited in checked baggage and must be placed in carry-on baggage. When a carry-on bag is checked at the gate or planeside, any spare lithium batteries must be removed and kept with the passenger in the aircraft cabin.
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Liquids
There are some exceptions to the 3-1-1 rule. Medication and baby formula are allowed in larger quantities, provided they are clearly labelled. Live fish are also permitted. Duty-free liquids purchased internationally can be carried in your carry-on bag if you are travelling to the United States with a connecting flight. These liquids must be in a secure, tamper-evident bag and should not show signs of tampering. The original receipt should be presented, and the purchase should have been made within 48 hours. Any liquid that alarms during screening will require additional screening and may not be permitted in your carry-on bag.
To facilitate the screening process, it is recommended that travellers remove their 3-1-1 liquids bag and place it in a bin for screening. Travellers should inform the security officer of any oversized liquids before screening and place them in a separate bin or dish for inspection.
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Food
Solid food items can be transported in carry-on or checked baggage. However, liquid or gel food items larger than 3.4 oz are not allowed in carry-on bags and should be placed in checked baggage. The 3-1-1 rule applies to creamy or spreadable items with a soft consistency, such as peanut butter, salsa, dips, jams, and preserves. These items are permitted in checked baggage but are only allowed in carry-on bags in containers smaller than 3.4 oz. Canned goods are also subject to the 3-1-1 rule, which can be problematic as most cans exceed 3.4 oz. It is recommended to check canned goods or ship them home.
Certain foods, such as hard cheese, frozen seafood, and fresh eggs, are allowed in carry-on baggage. Fresh fruits and vegetables are generally permitted within the continental United States, but passengers flying from Hawaii, Puerto Rico, or the U.S. Virgin Islands to the U.S. mainland cannot bring most fresh produce due to the risk of spreading invasive plant pests.
Special guidelines apply to baby food, baby formula, and juices. While these items are permitted in checked luggage, they require special screening if brought into the cabin. Water for babies in reasonable quantities is allowed in carry-on baggage. Pies and cakes are also allowed through security.
It is important to note that even if a food item is generally permitted, it may be subject to additional screening or prohibited if it triggers an alarm, appears tampered with, or raises security concerns. The final decision rests with the TSA officer at the checkpoint. To facilitate the screening process, travellers are encouraged to keep their carry-on bags organised and uncluttered.
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Clothing
Firstly, it is important to note that you may be asked to remove outer garments, such as light jackets, windbreakers, vests, suits, blazers, and sports coats, for screening. If you are wearing a hoodie, sweatshirt, or sweater, you may be asked to remove it, so it is advisable to wear a T-shirt or another garment underneath. Additionally, some travelers have reported that wearing sweatpants and a plain T-shirt or shirt has helped them avoid a pat-down inspection.
Metal objects are another important consideration. Metal jewelry and piercings can set off metal detectors, leading to additional screening. Metal fasteners on clothing, such as buttons or zippers, may also trigger the metal detector. It is advisable to minimize the number of metal accessories and avoid clothing with excessive metal fasteners.
Comfortable and easily removable shoes are recommended for airport security. Most airports require passengers to remove their shoes temporarily, so slip-on styles are preferable. Wearing socks is also important for hygiene and comfort when removing shoes.
Finally, bulky or baggy clothing may require additional screening or a pat-down inspection. This includes low-hanging pants, flowy skirts, loose dresses, and oversized garments. If you are wearing multiple layers, you may be asked to remove the outer layer for screening.
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Pets
If you plan on traveling with your pet, the TSA recommends contacting your airline first. They will be able to provide specific guidelines on traveling with pets since each airline may have different rules. Additionally, each airline may have different definitions of what constitutes a "service animal," so it is important to clarify this with your airline before your travel date.
When passing through security, pets are not permitted to remain in your carry-on bag when it goes through the X-ray machine. You will need to remove your pet from its carrier and either carry it in your arms or walk it through the metal detector. Alternatively, your pet may be carried on a leash or in a carrier through the metal detector. If this is not possible, your pet will be subject to a visual and physical inspection, separate from you, which may slightly increase your time at the security checkpoint.
Service animals are subject to the same screening procedures as other pets. However, if you are traveling with a service animal, you will not be separated from your animal during the screening process. Notify a TSA officer if you require assistance during the screening of your pet.
It is important to note that only cats and dogs are permitted through TSA security checkpoints. Other animals, including emotional support animals, may be subject to different regulations, so it is important to check with your airline.
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Frequently asked questions
You'll need to remove your pet from its carrying case and place the case through the X-ray machine. You should keep your pet on a leash and remove the leash when carrying your pet through the metal detector.
You'll need to remove personal electronic devices larger than a cell phone, as well as your 3-1-1 liquids bag, and place them in a bin for X-ray screening.
With standard screening, you'll need to remove your shoes and place them on the X-ray belt. However, with TSA PreCheck®, you can leave your shoes on.








































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