NCEES: The following calculator models are the only ones acceptable for use during the 2021 exams:

• Casio: All fx-115 and fx-991 models (Any Casio calculator must have “fx-115” or “fx-991” in its model name.)

• Hewlett Packard: The HP 33s and HP 35s models, but no others

• Texas Instruments: All TI-30X and TI-36X models (Any Texas Instruments calculator must have “TI-30X” or “TI-36X” in its model name.)