1. Beware of the "Bulge": Measure Your Packed Bag
The new CT scanners feature a tunnel opening that measures 24.5 by 16.5 inches, which is slightly smaller than the older X-ray units. Because of this, bags that push the absolute limits of carry-on sizes—especially when overstuffed—might get stuck.
- Measure it fully packed: Ensure your bag fits standard dimensions even when the expansion zipper is fully utilized.
- Watch the hardware: Bulky protruding wheels, thick handles, and overstuffed exterior pockets are the main culprits that catch on the scanner.
- What happens if it doesn't fit: Officers will have to screen it by hand or divert you to a different lane, adding major delays to your trip.
2. Everything Goes In A Bin
If you are accustomed to dropping your suitcase right on the conveyor belt, you need to adjust your routine. With the new automated tray systems, every single item must be placed inside a bin for screening.
- Suitcases included: Your carry-on luggage, jacket, and personal items must all sit completely inside the bins.
- Don't force it: TSA agents advise passengers not to shove the bins through the scanner, as this can skew the images and force them to restart the screening process.
3. Leave Your Laptops and Liquids Packed
The biggest perk of the new CT scanners is the 3D imaging capability, which allows agents to view your bag from multiple angles. Because of this advanced technology, you no longer need to remove items from your bag, even if you are in a standard, non-PreCheck lane.
- Keep electronics packed: Laptops and tablets can remain safely inside your luggage.
- Keep liquids packed: You do not need to take out your toiletries. However, the standard 3-1-1 rule still applies, meaning liquids must be 3.4 ounces or less.
4. Photographers: Protect Your Unprocessed Film
If you travel with analog cameras, pay close attention: the new CT scanners are incredibly powerful and will destroy unprocessed film in a single pass, leaving distinctive banding patterns.
- Always request a hand inspection: It is your right under TSA policy to ask for your film to be inspected by hand.
- Pack it smartly: Remove film from cardboard boxes and store the loose rolls in a clear, quart-sized plastic bag so officers can inspect it quickly.
- Never check your film: Checked luggage scanners are even stronger and will completely ruin unprocessed film.
5. Rethink Your Airport Outfit
Alongside new baggage scanners, upgraded full-body passenger scanners are extremely sensitive and can flag common clothing items.
- Avoid rigid materials: Heavy belts, rigid waistbands, and large statement jewelry are notorious for triggering extra pat-downs.
- Mind your footwear: Certain shoes and chunky soles can also slow you down at the checkpoint.





