HB 890 revises the administration of assessment instruments for public school students, replacing state-mandated end-of-course exams with locally selected assessments in federally required subjects. It allows for SAT, ACT, or similar tests to serve as substitutes. The bill also modifies accountability measures, graduation requirements, and rules for special education students. It includes a transition plan to implement these changes, which will apply to students entering ninth grade for the first time during the specified implementation period​.