Permissible calculating devices for the ACT examination are generally handheld, battery-operated, and silent. These devices must not have computer algebra system (CAS) functionality. Furthermore, calculators with paper tape, those that make noise, or those that require an electrical outlet are prohibited. As an example, a basic scientific calculator like the TI-30XS is typically allowed, while a TI-89, which has CAS capabilities, is not.
Adherence to the calculator policy is vital for maintaining test integrity and ensuring fair evaluation for all candidates. The policy aims to prevent an unfair advantage stemming from sophisticated calculator features. Historically, evolving calculator technology has necessitated periodic updates to the permitted devices list to maintain a level playing field.
