Amends GS 115C-84.2(d) as title indicates. Requires Durham and Person County Schools to open no earlier than August 10 (currently, prohibited from opening earlier than the Monday closest to August 26), excluding year-round schools. Deletes the provisions of subsection (d) concerning waiver of the opening date requirements upon a showing of good cause. Amends GS 115C-174.12 allowing Durham and Person County Schools, if the school calendar concludes the fall semester before December 31, to administer assessments before the conclusion of that semester. Applies beginning with the 2025-26 school year.