Reciprocity arrangements

Could you explain "reciprocity" in this context? I am not sure what you mean. I would be interested to know. Outside of baseball, there are colleges that offer instate tuition to qualified students that make certain SAT scores, etc. Clemson and South Carolina come to mind. There are other schools that offer out of state tuition waivers to those that live in a neighboring county, but out of state.
A longtime poster on this site had researched OOS tuition waivers for NC schools, and reported that basically the tax code/law that allowed it may have been repealed in the last several years. You could check www.collegeconfidential.com for other state tuition waivers.

Ahhh, yes. The Academic Common Market for our State. A co-workers friend is using this for freshman year only (not for baseball), then will change her major after student/family declares state residency. Thanks for the link.

While certain circumstances may allow for an instate tuition bill, I would recommend that anyone who is counting on establishing themselves as a state resident go to the university website and read the documents on what constitutes residency. If you read these, you'll see that its very hard to become a resident for tuition purposes after the fact unless the parents actually move to the state.