Airport Security Screening: What to Take Out and What Happens

What happens at airport security, step by step?

1. ID and boarding pass. An officer checks your document against your boarding pass. In the US, adults need a REAL ID-compliant licence or a passport. Since 1 February 2026, travellers without one pay a $45 fee to use TSA ConfirmID as an alternative verification, which is valid for ten days.
2. Divest. Bag on the belt. Large electronics and your liquids bag out, unless your lane has a CT scanner. Coat off. Belts with metal buckles off.
3. Shoes stay on. This changed on 8 July 2025, and it applies to everyone, all ages, in standard lanes as well as PreCheck.
4. Body scanner. You step in, raise your arms, and it takes a couple of seconds.
5. Collect and go. If something in your bag needs a closer look, an officer will pull it aside and open it in front of you.

What do you put in the tray at airport security?

This is the moment that holds up the line, and it is worth getting right before you reach the belt. At a standard lane, into a bin go:

• Your quart-size liquids bag (the 3-1-1 bag), in its own bin
• Your laptop and any electronics larger than a phone, laid flat in a separate bin with nothing on top or underneath
• Bulky jackets and coats
• Belts with metal buckles, and heavy or valuable jewellery

What does not go loose in the tray: your wallet, keys, phone, coins and other pocket clutter. Empty your pockets into your bag before you reach the bins, not into the tray. Small loose items in a tray are the single most common thing travellers lose at the checkpoint.

At a CT-scanner lane, most of this stays in your bag — the 3D scanner sees through a packed bag, so liquids and laptops can remain inside. Watch for the signage or listen for the officer; the lanes are not labelled consistently.

Two practical things that save a secondary check. Charge your devices — if an officer asks you to power one on and it is dead, the bag may be pulled for additional screening. And powders over 12 oz (350 ml) — protein powder, large cosmetics — may be taken out for separate screening, so pack them where you can reach them.

Do laptops still come out?

Usually, yes — and this is the most common source of confusion right now, because shoes changed and people assume everything did.

At standard lanes, laptops and large electronics come out of the bag and go in a separate tray. At lanes with CT scanners, which build a 3D image of the bag, they can stay in.

The practical answer: pack your laptop where you can reach it in three seconds, and take it out only if told to.

How does baggage screening work?

Two different systems screen your two different bags, and knowing which is which removes most of the anxiety.

Carry-on (cabin) screening is the part you see: your bag goes through the X-ray or CT scanner at the checkpoint while you walk through the body scanner. If the image is unclear — electronics blocking the view, dense food, tangled cables — an officer opens the bag and checks it in front of you.

Checked baggage screening happens out of sight, after you drop your bag at the counter. It runs through a separate high-capacity scanner system, and if something needs a closer look, TSA opens it without you present — which is why you may find a printed inspection notice inside a checked bag on arrival. This is also why prohibited-but-harmless items are handled differently in each: a full-size liquid is fine in a checked bag and stopped in a cabin bag.

The rule of thumb: anything over 100 ml, or sharp, or awkward, belongs in the checked bag where cabin limits do not apply — provided it is allowed in the hold at all.

Why the rules feel different every time you fly

Because they are. Security screening in 2026 is a patchwork, and the patchwork is the direct result of a technology rollout happening lane by lane rather than country by country. Two lanes at the same airport, twenty metres apart, can operate different rules.

This is also why advice from a friend, or an article about "the new rules," is unreliable. The relevant question is never what the rules are in your country. It is what the rules are at the checkpoint you are standing in.

What is additional or secondary screening?

If the scanner flags something — or you are selected at random — you are taken aside for a closer look: a pat-down, a bag search, or an explosive-trace swab. It is routine, it is not an accusation, and the fastest way through it is to answer plainly and let them work.

Some things make additional screening more likely: a dead laptop or phone that cannot be powered on, powders over 12 oz, dense or cluttered packing that obscures the X-ray, and — for US domestic travellers — arriving without a REAL ID-compliant document, which routes you to enhanced identity screening.

How long does security take?

Long enough that you should not plan around the best case. Queue times swing wildly by airport, terminal, day of the week and hour, and the same checkpoint that took four minutes on a Tuesday morning can take forty on a Friday evening. Build in the time, and treat a short queue as a bonus rather than a plan.