Amends GS 115C-84.2(d) to permit local boards of education to set the opening date for traditional calendar schools to be no earlier than August 1 (was the Monday closest to August 26 unless the State Board of Education granted a waiver permitting earlier opening). Also removes the requirements for the closing date. Requires that first semester exams be given before winter break. Effective upon enactment and applies beginning with the 2013-2014 school year.