I don't see why you couldn't take info from here. Nothing in this was incorrect as you just have to figure out what school zone you are talking about. I know Ohio defines it as "School safety zone" consists of a school, school building, school premises, school activity, and school bus but the fact that they reference the fed law that is also considered a school safety zone now too. Granted Ohio doesn't have any laws on that 1000' but there are basically 2 separate school zone sections in 2923.122, the one I posted which basically is for the 1000' and the one you referenced is for the Ohio definition.