While the Volusia County school district has seen School Board members serve as many as 20 years, that kind of long-term tenure may no longer be possible under a new state proposal that aims to cap their representation at eight years. The measure, supported unanimously by the Florida Constitution Revision Commission’s Education Committee, seeks to limit school board members to no more than eight years in office, matching the caps for state represenatives and senators. But critics note that would impose a state rule on county offices that are generally determined at the local level.