Pennsylvania Statutes Title 53 P.S. Municipal and Quasi-Municipal Corporations § 23585. Contributions by the city

(a) The public officials of the city charged with the disbursements, expenditures, and appropriations, shall annually set aside, apportion, and appropriate, out of all taxes and income of the city, to the board, a sum sufficient to maintain the pensions due under this act.  If the total disbursements from the fund for the payment of pensions, refund of accumulated contributions of members, and administration expenses shall exceed in any year the total revenues of the fund from member contributions and the interest and premiums on investments and bank deposits, then the amount to be set aside, apportioned and appropriated by the public officials of the city to the fund shall not be less than the difference between the total disbursements and receipts of the fund, as aforesaid.

(b) Every authority or agency, whose employees are members of the fund, shall be held liable for the amount due to the fund on account of benefits provided by this act which are paid to employees of such authority or agency:  Provided, however, That where an employee of the authority or agency formerly worked for the city, the authority or agency shall be held liable for that proportionate part of the pension or other benefits paid which the authority or agency service bears to the total credited service.