Pennsylvania Statutes Title 35 P.S. Health and Safety § 1235.1. Preemption

(1) The provisions of section 10.1 of this act shall not apply to local rules or ordinances concerning the subject matter of section 10.1 of this act which have been adopted by cities of the second class and were in effect prior to September 1, 1988.

(2) In the event that the local rule or ordinance is amended, suspended, rescinded or rendered, in whole or in part, ineffective by a court decision, the exemption shall not apply; and the city of the second class shall be subject to the provisions of section 10.1 of this act.