Amends GS 115C-84.2(d) as title indicates. Requires Granville County Schools and Vance County Schools to open no later than August 1 (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 to allow Granville County Schools and Vance County Schools, if a school calendar is implemented that concludes the fall semester before December 31, to administer assessments before the conclusion of that semester. 

Encourages any community colleges located in Granville or Vance counties to cooperate with the local boards of education to develop school calendars that best suit the needs of students attending class in both systems.

Applies beginning with the 2023-24 school year.