Unreinforced masonry bearing wall buildings classified as Seismic Design Category D, E, or F shall have parapet bracing and wall anchors installed at the roof line whenever a reroofing permit is issued. Such parapet bracing and wall anchors shall be designed in accordance with the reduced Building Code of New York State level seismic forces as specified in Section 506.1.1.3 and design procedures of Section 506.1.1.1.