On the USC-Upstate website:
Out-of-State Fee Waivers
Students who are not residents of South Carolina and who receive USC Upstate Athletic or Foundation Scholarships, or USC Upstate Undergraduate Assistantships valued at $250 or more each semester may qualify for a waiver for out-of-state fees. The following conditions must be met to qualify for the fee waiver.
The award must be made in writing to the student before the end of late registration for each semester and prior to the student paying his tuition. Notification of the award must be forwarded to the financial aid office prior to the end of late registration for each semester. Scholarships or undergraduate assistantships that are awarded after the end of late registration for each semester will not result in a refund of out-of-state fees.
I don't have a clue if all USC school are like this, but found the above here
scholarships