The TI-84 Plus is not in the NCEES 2026 approved calculator families; Texas Instruments approval is limited to TI-30X and TI-36X models.
The NCEES FE calculator rule is not a broad permission for any familiar classroom graphing calculator. It is a whitelist that names the only acceptable calculator families for the 2026 exams. For Texas Instruments, the listed families are TI-30X and TI-36X models. The TI-84 Plus is a programmable graphing calculator in the TI-84 family, so it does not pass the printed-model-name test. This verdict does not depend on whether the device is common in algebra, calculus, statistics, or engineering classes. It also does not depend on whether memory could be cleared, programs deleted, apps removed, or graphing features ignored. The controlling issue is that TI-84 Plus is not a TI-30X or TI-36X model. For the FE exam, choose a calculator whose exact family appears on the NCEES list.