Is the TI-84 Plus CE Allowed on the ACT?

Use the Texas Instruments TI-84 Plus CE only on the ACT Math section or another ACT context that explicitly allows calculators.

For Digital ACT, Desmos is built into the platform, but an approved handheld calculator may also be used during Math if it is not connected to the testing device.

Bring the standalone handheld calculator, not a phone, tablet, smartwatch, laptop, browser tool, screenshot, emulator, or downloaded calculator app.

Remove stored documents and remove programs with CAS functionality if the current ACT policy requires that modification for your calculator.

If test staff ask you to clear stored material, remove covers, inspect labels, turn off sound, or put away accessories, follow that local instruction.

Bring it charged or with reliable power, because a policy approval does not solve battery problems.

If you borrow a school TI-84 Plus CE, inspect the shell label, charger port, keypad condition, installed programs, archived files, and battery health before exam week.

For planning, write down the exact model, color, serial-style label, borrowed owner, backup choice, charger, batteries, cover, and accessories before exam morning so no last-minute substitution changes the device being evaluated.

If you buy secondhand, avoid vague listings, regional editions, school bundles, modified firmware, missing labels, cracked screens, unreadable keys, or seller claims that cannot be matched to the authority's written policy.