You have to provide 1% of the seats to be within ADA standards, as long as the seats are in the lower level, you can have them at the top like we currently do, as long as they have a clear line of sight to the field. You must also provide space for on folding chair for a friend or family, to sit beside them.
Those seats do not have to be in the same area as the other seats of the family. So the family could be sitting on the 1st row and the handicapped person at the top with space for someone to sit with them. We used to take our daughter to games at both JTS and Wells Fargo in Des Moines, all of us never sat together, they must provide space for a wheel chair and one other person, but that can be separate from the rest of the group. Those seats must also be assessable to the concession stands and those at ISU currently are.