DAT Prometric Rules: Banned Items & Strictness

Short answer: no calculator, no watch, no phone, no bag, no notes — nothing electronic and nothing personal goes with you into the DAT testing room. The only calculator you get is a basic on-screen one that appears automatically during the Quantitative Reasoning section and nowhere else. Everything you own gets locked in a small locker before you check in, and yes, Prometric centers are exactly as strict as Reddit says they are.

We've both sat that appointment. Nobody tells you beforehand how much of the anxiety on test day has nothing to do with organic chemistry and everything to do with wondering if you're about to get flagged for something dumb, like forgetting a hair clip in your pocket. So here's the full, boring, complete list of what's banned, what the calculator situation actually is, and what "strict" looks like in practice — so none of it surprises you.

What You Can't Bring Into the DAT Testing Room

Prometric runs the same script at every center because the ADA requires it. The rule of thumb: if it's not provided to you at your seat, it's not allowed at your seat.

• Phones, smartwatches, and watches of any kind — digital, analog, fitness bands, all of it.
• Personal calculators, including the one you've been using all through undergrad. It does not come with you.
• Bags, purses, backpacks, and wallets. You won't have your ID with you once you're checked in either — it stays with the proctor's records.
• Notes, books, and scratch paper you bring yourself. You'll be given official scratch material (paper or a dry-erase booklet, depending on the center) and a pencil.
• Hats, hoods, and bulky outerwear. Some centers allow religious head coverings after inspection, but confirm specifics with your center ahead of time.
• Food, drink, and gum. You'll get access to any snacks or water you brought only during your optional break, and only in the designated area, not at your seat.
• Any electronic device — smart glasses, earbuds, fitness trackers, USB drives, e-readers. If it has a chip in it, assume it's banned.

For the complete rundown of what to actually bring (ID requirements especially trip people up), see our guide on what to bring to the DAT test center.

Is There a Calculator on the DAT?

Yes — but only in one place. A basic, four-function-style on-screen calculator is built into the testing software and appears automatically during the 40-question Quantitative Reasoning section. It disappears the moment QR ends.

There is no calculator, on-screen or otherwise, during the Survey of Natural Sciences, the Perceptual Ability Test, or Reading Comprehension. That surprises a lot of students who assume they'll get one for the science math (density calculations, molarity, stoichiometry). You won't. QR itself is capped at algebra, quantitative comparison, data analysis, word problems, and a little trigonometry — no calculus, and the built-in calculator is intentionally basic, so it won't bail you out of weak mental math or estimation.

This is exactly the kind of detail that's easy to miss until test day rattles you. It's also exactly the kind of thing our full-length practice tests replicate — same on-screen calculator, same section order, same timing — so the first time you see it isn't the day it counts.

No Watch, No Phone: What Prometric Actually Enforces

The watch and phone rules exist for the same reason: anything that can store, display, or transmit information is a security risk, full stop. It doesn't matter if your watch "doesn't even have internet" or your phone is "definitely off." Both stay in your locker, not your pocket, not your sock, not your bra.

A clock is visible on your testing screen the entire time, along with a running countdown per section, so you're never guessing at pacing without your watch. Proctors are trained to notice a wrist that looks like it's wearing something, and they will ask you to remove it before you're allowed to sit down.

Your phone gets powered completely off (not just silenced) and stored in an assigned locker at check-in. You cannot access it again until your entire appointment is over, including during your optional break between PAT and Reading Comprehension — we cover exactly how that break works in our DAT breaks and total test length guide.

How Strict Are DAT Test Centers, Really?

Strict, consistently, and in a way that's actually predictable once you know it's coming. Here's the routine you should expect, which lines up with what you'll read across pretty much every forum thread on the topic:

• ID check against your ADA-issued confirmation, usually more than once during the appointment.
• A metal-detector wand pass or a pat-down before you enter the room.
• Pockets turned out, sleeves checked, and sometimes a request to lift pant legs or push up sleeves.
• A locker assignment for everything you're not allowed to carry, keyed and often video-monitored.
• Continuous video and audio recording of the testing room, with a live proctor watching a monitor.
• Fingerprinting or a palm-vein scan at some centers, plus a photo, on both check-in and re-entry after your break.

None of this is a punishment aimed at you specifically. Prometric administers dozens of different exams from the same rooms, and the DAT rules ride on top of the same standardized security protocol every one of those exams uses. The strictness is the same reason your score means something to admissions committees: it's hard to cheat, which is exactly what you want from a test that decides where you go to dental school.

The Real Reason This Trips People Up

Most DAT guides talk about content and completely skip the logistics, so students walk in not knowing whether their asthma inhaler is a problem or whether a hair tie counts as a "device." It usually doesn't, but the anxiety of not knowing is real, and it's a bad way to spend the ten minutes before your Survey of Natural Sciences timer starts.

Our advice: the night before, empty every pocket you own onto your desk and only put back your ID and your car key. If you wear glasses, that's fine. If you take medication, bring it in its original container and mention it at check-in ahead of time. When in doubt about anything specific to your situation, call your assigned center directly — policies can vary slightly by location, and the person answering the phone deals with this question daily.

Know your check-in sequence cold too, since that's where most of the friction happens; we walk through it step by step in our DAT check-in process guide.