9.1 Electronics Screening (Standard vs CT)
Key Takeaways
- In standard lanes, TSA asks travelers to remove personal electronic devices larger than a cell phone — laptops, tablets, e-readers, and handheld game consoles — and place them in a bin with nothing on or under them (tsa.gov/travel/security-screening).
- Hair dryers, electric shavers, and electric toothbrushes are not on that remove-electronics instruction; they are ordinary bag items unless an officer separates them for image quality (TSA Security Screening).
- Under current checkpoint CT procedures, laptops may remain inside the bag; keeping 3-1-1 liquids in the bag is a published future goal, not a current universal rule (tsa.gov/computed-tomography).
- Officers may ask a traveler to power up a device, including a cell phone; powerless devices are not permitted onboard; TSA does not read or copy information from the device (TSA What Can I Bring).
- TSA PreCheck® typically lets travelers keep laptops in the bag; last-point-of-departure flights into the United States may still add extra screening of personal electronic devices (TSA Security Screening; PreCheck).
9.1 Electronics Screening (Standard vs CT)
Quick answer: In standard lanes, TSA's Security Screening page says you will be asked to remove personal electronic devices larger than a cell phone from the carry-on and place them into a bin with nothing on or under them. Named examples are laptops, tablets, e-readers, and handheld game consoles. That instruction does not include hair dryers, electric shavers, or electric toothbrushes. On checkpoint computed tomography (CT), current procedures allow laptops to remain inside the bag. Keeping 3-1-1 liquids in the bag is a future goal, not a current universal rule. Officers may ask you to power up a device, including a cell phone. Powerless devices will not be permitted onboard. TSA does not read or copy information from the device.
This section trains public electronics-screening logic for the TSO Assessment Battery (TAB) and for the live checkpoint. Chapter 4 covered why 2-D X-ray and CT images look different. This section covers what travelers must take out, what may stay in, and what a power-up request actually means. It does not teach Sensitive Security Information (SSI) alarm codes or unpublished image tradecraft.
Why large electronics come out in standard lanes
A laptop, tablet, e-reader, or handheld game console is a dense, rectangular slab. On a 2-D checkpoint image it is also a mask. Anything under it, on it, or beside it in a stuffed pocket can collapse into the same projection. TSA's public instruction is therefore operational, not fussy: take those devices out of the bag and give the X-ray a clean view of the device and of the bag that used to hide it.
The published size test is larger than a cell phone, not a millimeter chart. TSA does not publish a diagonal-inch cutoff on the Security Screening page. It publishes examples: laptops, tablets, e-readers, handheld game consoles. A traveler who calls a tablet "just a big phone" has not changed the listing. A traveler who leaves a Nintendo-style handheld in a backpack has left a named example in the bag.
Cell phones sit on the other side of that threshold. The standard-lane sentence is not "remove every battery-powered gadget." It is remove devices larger than a cell phone. Follow officer instructions if a particular phone, camera, or corded brick is asked out for image quality. Do not invent a nationwide "all phones in a bin" rule from the large-electronics paragraph.
What is not on the remove-electronics list
TSA states, on the same page, that the large-electronics instruction does not include hair dryers, electric shavers, or electric toothbrushes. Those items can stay in the carry-on for the electronics-divest step. They are still dense objects. An officer may still tell a traveler to separate food, powders, or other materials that clutter the bag and obstruct clear images. That clutter instruction is a separate public rule. It does not rewrite hair dryers into laptops, and it does not give a laptop a free pass because a dryer is also "electronics."
Learn the two lists as two lists:
- Must come out in standard lanes (named PEDs): laptops, tablets, e-readers, handheld game consoles — devices larger than a cell phone — bin with nothing on or under them.
- Not on that instruction: hair dryers, electric shavers, electric toothbrushes.
If a practice image or a traveler story mixes a hair dryer with a tablet, screen the tablet as a removed PED and the dryer as a bag item unless the officer separates clutter.
The empty-bin rule
"Nothing placed on or under them" is the second half of the same sentence. Stacking a jacket, a 3-1-1 bag, a sandwich, or a second device on the laptop recreates the overlap the removal was meant to prevent. Putting the laptop in a bin and then dropping keys on the lid does the same. For image-interpretation aptitude, an empty-bin laptop is a readable rectangle. A laptop under a coat is a problem the traveler was asked not to create.
Officers may also instruct travelers to separate other items so the bag image is clear. TSA recommends packing an organized bag because a jam-packed, cluttered, overstuffed carry-on takes time to resolve. TSA screens about 3.3 million carry-on bags a day. One stacked bin is not a private shortcut.
Standard lanes, current CT, and PreCheck
Do not mash three public regimes into one rumor that "TSA never takes laptops out anymore." Lane type is a local operational fact. Read the sign. Listen to the officer.
| Procedure | Standard 2-D lane | Current checkpoint CT (TSA.gov) | Typical TSA PreCheck® benefit |
|---|---|---|---|
| Personal electronics larger than a cell phone (laptops, tablets, e-readers, handheld game consoles) | Remove; place in a bin with nothing on or under them | Laptops may remain inside the bag | Travelers typically keep laptops in the bag |
| Hair dryers, electric shavers, electric toothbrushes | Not on the remove-electronics instruction | Not a laptop-divest category | Not a special electronics-divest list |
| Cell phones | Not the "larger than a cell phone" trigger; follow the officer | Follow officer and signage | Follow officer and signage |
| 3-1-1 liquids | Follow the 3-1-1 rule; standard screening typically divests them | Future goal is keeping 3-1-1 liquids in the bag — not a current universal rule | Typically keep 3-1-1 liquids in the bag |
| Power-up request | Officers may ask, including cell phones | Same What Can I Bring rule | Same What Can I Bring rule |
| TSA reads or copies device files | No | No | No |
Two sentences on TSA's CT page are easy to flatten. Keep them apart:
- Current CT procedure: laptops are allowed to remain inside the bag for screening.
- Future goal: keep laptops and 3-1-1 liquids inside the bag during checkpoint screening.
Until liquids-in-bag is the published current procedure everywhere, do not grade a 3-1-1 bag as "already allowed to stay in at every U.S. airport because CT exists." CT is being fielded; it is not a claim that every checkpoint has finished the transition.
TSA PreCheck® is a risk-based lane, not a scanner brand. TSA's Security Screening page states that with PreCheck you typically do not need to remove shoes, laptops, liquids, belts, and light jackets. That is why a PreCheck traveler may look like a CT traveler even on 2-D equipment: the published benefit is keeping the laptop in. No individual is guaranteed expedited screening. Unpredictable measures still apply.
Power-up, dead batteries, and privacy
TSA's What Can I Bring pages, including the Medical category footer, repeat a three-part rule:
- Officers may ask you to power up your electronic device, including cell phones.
- Powerless devices will not be permitted onboard the aircraft.
- TSA does not read or copy information from your device.
A dead laptop is not "cleared because it looks like a laptop." A device that will not turn on does not board. The power-up request is a function check, not a forensic download. Candidates who write that TSA copies photos, texts, or files from a phone at the checkpoint are inventing a power TSA's public page denies.
If the traveler cannot power the device, the public outcome is not permitted onboard, not "the officer will extract the drive." The traveler's options are to supply a working device or not take that object into the cabin. The final decision rests with the TSA officer on whether an item is allowed through the checkpoint.
International last-point-of-departure screening
TSA's Security Screening page adds a separate electronics note for flights into the United States from last-point-of-departure airports: travelers should prepare for a more extensive screening process and for additional screening of property and personal electronic devices. Arrive early. TSA also states there are currently no airlines under restrictions for large personal electronic devices — the old cabin-laptop bans by airline are not the current public status. Additional screening is not the same thing as a blanket electronics ban.
Hazardous-materials questions still go to FAA PackSafe. Batteries are the next section. The screening question in this section is simpler: did the large PED come out in a standard lane, stay in under current CT, and power on if asked?
X-ray aptitude: rectangles, cables, and overlap
The TAB evaluates x-ray / image-interpretation aptitude. On a public, non-SSI description of a bag image:
- A laptop or tablet is a large high-density rectangle, often with a thinner display layer and a cable bundle.
- A handheld game console is a smaller dense slab, still larger than a typical phone and still on the remove list in standard lanes.
- A hair dryer has a motor housing and a barrel or concentrator — not the same silhouette as a closed laptop.
- Cables, chargers, and overlapping clothes hide edges. Overlap is a reason to keep looking, not a reason to pretend the dense rectangle is "just a book."
Public packing logic still applies after you recognize the object. Identifying a laptop on an image does not decide CT versus standard. The lane procedure decides whether that laptop should have been in a bin. Identifying a hair dryer does not put it on the remove-electronics list.
Realistic scenario
A traveler in a standard 2-D lane leaves a 13-inch laptop in a backpack, stacks a jacket on a tablet in a bin, and keeps a hair dryer and an electric toothbrush packed. The laptop and tablet are personal electronics larger than a cell phone: they should be out, and the tablet bin should have nothing on it. The dryer and toothbrush are not on that instruction. The officer asks the laptop to power up. It is dead. Powerless devices will not be permitted onboard. TSA does not copy the hard drive. In the next queue, a CT lane is running current CT procedures, so a second traveler's laptop may stay in the bag. That traveler still has 3-1-1 bottles in a quart bag because liquids-in-bag is the future goal, not today's universal rule. A PreCheck traveler in a third lane keeps the laptop in under the published PreCheck benefit, then still follows the officer when a device is selected for extra screening. The final decision rests with the TSA officer.
In a standard checkpoint lane, which electronics-screening instruction does TSA publish on its Security Screening page?
Under TSA's published current screening procedures for checkpoint computed tomography, which statement is correct?
What does TSA say about powering up electronic devices at the checkpoint?