 The Columbus Education Association is suing Columbus City Schools over the handling of substitute teacher contracts they say violated state law. The CEA says that 28 building substitutes were not given proper notice of the district's decision to pass on renewing their employment agreements. The union says state law dictates that the workers need to be informed of the non-renewal decision by June 1st. Otherwise, the contract is considered renewed for another year. The notices were sent on June 25th.