53 Pa. Stat. § 15204 : Statutes (Unconsolidated) — MUNICIPAL AND QUASI-MUNICIPAL CORPORATIONS — CITIES OF THE FIRST CLASS — PREEMPTION OF ORDINANCES FOR IMPROVEMENTS OF STATE-RELATED UNIVERSITIES — Retroactivity TEXT PDF This act shall be retroactive to March 15, 1994. 53 P.S. § 15204 1995, June 30, P.L. 167, No. 24, § 4, imd. effective.