Education leaders say the proposal before the Iowa Legislature to mandate a later school start date threatens to eliminate spring break. Governor Branstad wants the start date closer to Labor Day. Waukee Superintendent Dave Wilkerson told the "Des Moines Register" that they have students and teachers who take summer classes at Iowa State University and other colleges and pushing back the start date would infringe on that opportunity by moving the end of the school year later in the year. State law says no school can start before September 1 without a waiver, and all but five of Iowa's 351 districts have such a waiver in place for this year.