The extended tuition freeze would mark another significant departure from recent practice at the System. Prior to the tuition freeze mandated by the Republican-controlled state Legislature starting with the 2013-2014 school year, the System had hiked tuition at four-year campuses 5.5 percent annually in each of the previous six years, the maximum annual increase allowed by law. System spokesman John Diamond said Wednesday that tuition now is viewed as ?a revenue source of last resort.?