With USBC Intercollegiate, the only requirements are that you meet the academic requirements (has something to do with GPA and the number of credits passed) and be enrolled as a full-time student.
The issue would be with a female bowler in an NCAA program because the NCAA has rules about professional/amateur status. Girls can compete in scholarship tournaments before going to college, but can only be in prize money events if they accept up to actual necessary expenses for competing. NCAA also has rules regarding what participants are allowed to do during the school year in terms of outside leagues. (Being on a team in an outside league is a no-no, subbing in an outside league is only allowed during vacation periods, but pacing in a league is legal.)
15# Brunswick Anaconda
15# Ebonite Cyclone
14# T Zone
HG: 279 santioned/300 unsanctioned
177 full season league
171/175 (both halves short-season)
First "Triple Deucey" 3/28/2012: 226-212-202 for 640.