The state reports that no Ohio school has earned the "persistently dangerous" label for the second year in a row. The federal No Child Left Behind law required states to identify schools with chronic violence and allow students who attend such schools to transfer elsewhere in the district. The Ohio Department of Education reviews crime data and determines whether to label the schools. Despite reports of assaults, fights and other crimes at schools in Ohio, the state says none have fit the category in either of the past two years. The guidelines take into account whether a school had two or more violent criminal offenses - from assault to murder to robbery - per 100 students in each of two consecutive years.