53 Pa. Stat. § 22101 : Statutes (Unconsolidated) — MUNICIPAL AND QUASI-MUNICIPAL CORPORATIONS — CITIES OF THE SECOND CLASS — ORGANIZATION AND ANNEXATION — GENERAL PROVISIONS — Certain laws of third-class cities to remain in force TEXT PDF From and after the passage of this act, all laws relating to cities of the third class shall continue to apply to cities of that class which have passed or may pass into a city of the second class by reason of increase in population, except so far as such laws are supplied by, or in conflict with, laws relating to cities of the second class. 53 P.S. § 22101 1901, March 7, P.L. 20, art. XX, § 1.