The TI-Nspire CX CAS is outside the NCEES approved Texas Instruments families for 2026 and includes CAS functionality in the stored calculator data.
Based on the cited NCEES calculator policy, this verdict treats the Texas Instruments TI-Nspire CX CAS as banned for the FE exam because the NCEES rule is a strict approved-model list. The stored calculator data also identifies this device as a CAS graphing calculator, but the whitelist issue is already enough: TI-Nspire CX CAS is not a TI-30X or TI-36X model. NCEES states that the listed models are the only acceptable calculators for the 2026 exams, and its Texas Instruments allowance does not include TI-Nspire, TI-84, TI-89, or other graphing families. This conclusion is intentionally narrow and practical. It does not require a proctor to evaluate whether CAS can be disabled, whether documents were cleared, or whether a test mode is active. The safest FE reading is to bring a physical calculator whose printed model family is explicitly named by NCEES.