11 Pa.C.S. § 14348

Council may 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 or compensations due on account of the city contributions for all employees, except volunteer firefighters. The board of trustees of the volunteer fire company employing and paying members shall annually contribute to the board a sum equal to the same percentage of its participating payroll as the amount contributed by the city for the same year bears to its participating payroll for each volunteer firefighter member becoming a member of the fund.