When the employee (who is not an underground mining employee) reaches the compulsory retirement age of 65 years, his employer may retire him and pay him. The Retirement Office is responsible for managing investments and retirement benefits for Allegheny County Employees' Retirement System (ACERS) Plan members.In the private sector, the ½ month pay in retirement pay is equivalent to 22.5 days. Retirement pay requires at least five (5) years of service. Allegheny County Employees' Retirement System. 2022 Private Investment Management Fee Summary. The compulsory retirement age in the Philippines is 65 years old for private employees. I am pleased to transmit the attached audited Office of the Comptroller of the. Currency (OCC) financial statements for fiscal years 2013 and 2012.