ACT rules cover ID, prohibited items, calculator use, break behavior, and academic integrity—breaking them can mean dismissal, cancelled scores, or bans from future tests. Knowing the rules before test day is as important as knowing the content.
ID and check-in
Bring the photo ID ACT accepts for your age and situation, plus your admission ticket (or digital equivalent if required). Names must match. Arriving without acceptable ID is a common reason students never sit the test. Logistics for registration and tickets are in how to register for the ACT.
Phones and prohibited items
Phones, smartwatches, and many electronic devices are banned in the testing room. Having a phone out—or even on—during the test can lead to dismissal and cancelled scores. Leave devices in the car or powered off in a bag only if the center allows storage; when in doubt, leave them home or with a parent outside.
Also leave unauthorized notes, scratch paper you brought yourself (use what they provide), and anything that looks like a cheat sheet. Pack only what is listed in what to bring to the ACT.
Calculators
Calculators are allowed on Math under ACT's published list. Some models and features are banned. Check the ACT calculator policy and bring a backup if you can. Using a banned calculator can void your Math score or more.
Breaks and conduct
Follow the proctor's instructions on when you may leave, talk, or eat. Working past time, looking at another student's answers, discussing test content, or creating a disturbance can trigger dismissal. After the test, do not share specific live items online—ACT treats that as a security violation.
What happens if you break a rule
Possible outcomes include being asked to leave, score cancellation for that date, and restrictions on future registrations. If anxiety about logistics is high, pair this checklist with how to manage ACT test-day anxiety and what to do the night before.
The bottom line
Know ID, device, calculator, and break rules cold. A preventable dismissal wastes months of prep—read the ticket, pack clean, and follow the room.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.