11 Pa.C.S. § 11056: Ascertainment of number of signers and report.

After presentation of the petition to council, the city clerk shall ascertain whether or not the referendum petition is signed by a number of registered electors equal to 20% of all the votes cast for all candidates for mayor at the last preceding municipal election at which a mayor was elected. Council may allow the clerk additional help for that purpose. After the clerk has made the examination, the clerk shall report the result to council.