Amending Section 19-1303(4) of The Philadelphia Code, entitled "Authorization to Offer Exemption from Real Estate Taxes on New Construction of Residential Properties," by changing the exemption schedule for new construction of residential properties, and repealing Bill No. 970214 (approved December 9, 1999), which also amended Section 19-1303(4), but has not yet taken effect, all under certain terms and conditions. — Open Common Ground