Amending Title 22 of The Philadelphia Code, entitled ?Public Employees Retirement Code,? by modifying the circumstances when City of Philadelphia retirees continue to receive retirement benefits following reemployment, providing for other related benefit requirements, and making certain technical changes; and amending Chapter 20-900 of The Philadelphia Code, entitled ?Health and Welfare Benefits for Pensioned Employees,? by modifying the circumstances when City of Philadelphia retirees who are reemployed must contribute to their Health and Welfare Benefits and to any applicable union; all unde