Relating to public school accountability and transparency, including the implementation of an instructionally supportive assessment program and the adoption and administration of assessment instruments in public schools, indicators of achievement, public school performance ratings, and interventions and sanctions under the public school accountability system, a grant program for school district local accountability plans, and actions challenging Texas Education Agency decisions related to public school accountability.

Creates a new 'instructionally supportive assessment program' that must be shorter, more balanced, and based on essential knowledge and skills rather than just college readiness standards.

Requires teacher committees to review and approve test questions, with at least 75% agreement needed before items are included in assessments.

Mandates that assessments be designed to minimize instructional time impact, with specific time limits for completing tests (60-105 minutes depending on grade level and test type).

Requires assessments to report student growth and provide diagnostic reports with actionable recommendations for teachers and parents.

Establishes new requirements for Spanish-language assessments for emergent bilingual students in grades 3-5.

Creates a study requirement to evaluate whether test items are written at appropriate reading levels for students.

Allows for provisional approval of alternative assessment instruments that don't fully meet requirements if they have a compliance plan.

Changes the timeline for reporting assessment results from 21 days after administration to within two business days after the assessment window closes.

Requires automatic rescoring of writing portions if scores improve by one point.

Establishes a transition timeline where students will continue taking STAAR until 2027-2028, with the new assessment program fully implemented by then.