Texas Instruments TI-84 Plus Exam Calculator Rules

ACT states that 4-function, scientific, and graphing calculators are allowed unless prohibited, and its Digital ACT guidance says students may bring an approved handheld calculator during Math. The stored calculator data identifies the TI-84 Plus as a standalone graphing calculator without CAS, so this verdict treats that physical model as allowed while excluding apps, emulators, connected devices, and calculators with prohibited CAS functionality.

“4-function, scientific, and graphing models are allowed unless prohibited”

Texas Instruments summarizes ACT calculator restrictions and lists prohibited TI CAS models such as TI-89, TI-92, Voyage 200, and TI-Nspire CAS. The TI-84 Plus is not in that prohibited TI CAS list, which supports the ACT-policy reading used here.

“Specific Texas Instruments graphing calculators prohibited for use on the ACT test include the TI-89”

NCEES says the listed models are the only acceptable calculators for the 2026 exams. For Texas Instruments, the acceptable families are TI-30X and TI-36X models. The Texas Instruments TI-84 Plus is not in either listed family, so this verdict treats it as banned for FE exam use.

“The following calculator models are the only ones acceptable for use during the 2026 exams”