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TABLE 3403.6.1.1.2 <br />ASCE 41 and ASCE 3l PERFORMANCE LEVELS <br /> PERFORMANCE LEVEL PERFORMANCE LEVEL <br />OCCUPANCY FOR USE WITH ASCE 31 FOR <br />CATEGORY AND WITH ASCE 41 USE WITH ASCE 41 BSE-2 i <br />(BASED ON IBC BSE-I EARTHQUAKE EARTHQUAKE HAZARD ~ <br />TABLE 1604.5 HAZARD LEVEL LEVEL <br />I Life Safety (LS) Collapse Prevention (CP) <br />II Life Safety (LS) Collapse Prevention (CP) <br />III Note (a) Note (a) <br />IV Immediate Occupancy (10) Life Safety (LS) <br />a. Performance Levels for Occupancy Category III shall be taken as halfway between the <br />performance levels specified for Occupancy Category II and Occupancy Category IV. <br />3403.6.].].3 Reduced CBC level seismic forces. When seismic forces are permitted to meet <br />reduced building code levels, they shall be one of the following: <br />75 percent of the forces prescribed in the building code. The R factor used for analysis in <br />accordance with Chapter 16 of the building code shall be the R factor as specified in <br />Section 3403.6.1. ] .2. <br />2. In accordance with the applicable chapters in Appendix A of the International Existing <br />Building Code as specified in Items 2.1 through 2.5 below. Structures or portions of <br />structures that comply with the requirements of the applicable chapter in Appendix A <br />shall be deemed to comply with the requirements for reduced building code force levels. <br />2.1. The seismic evaluation and design of unreinforced masonry bearing wall buildings <br />in Occupancy Category I or II are permitted to be based on the procedures specified <br />in Appendix Chapter A1. <br />2.2. Seismic evaluation and design of the wall anchorage system in reinforced concrete <br />and reinforced masonry wall buildings with flexible diaphragms in Occupancy <br />Category ] ar II are permitted to be based on the procedures specified in Appendix <br />Chapter A2. <br />23. Seismic evaluation and design of cripple walls and sill plate anchorage in <br />residential buildings of light-frame wood construction in Occupancy Category I or II <br />are permitted to be based on the procedures specified in Appendix Chapter A3. <br />2.4. Seismic evaluation and design of soft, weak, or open-front wall conditions in <br />multiunit residential buildings of wood construction in Occupancy Category I or II <br />are permitted to be based on the procedures specified in Appendix Chapter A4. <br />6 <br />