You are treated as a Pennsylvania resident for tuition purposes at Pennsylvania public colleges and universities if you are a nonresident service member stationed and living in Pennsylvania, or a dependent of one. Veterans using VA education benefits, and students using transferred VA education benefits, who live in Pennsylvania also qualify.
Ask the admissions or registrar office at the Pennsylvania public college or university you are attending to classify you as a resident for tuition purposes, and give them your orders or VA education benefit paperwork.
Your orders assigning you to Pennsylvania, or your VA Certificate of Eligibility for education benefits, plus proof you live in Pennsylvania.