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2. 1. The seismic evaluation and design of unreinforced masonry bearing wall buildings in <br /> Occupancy Category I or II are permitted to be based on the procedures specified in <br /> Appendix Chapter AI. <br /> 2.2. Seismic evaluation and design of the wall anchorage system in reinforced concrete and <br /> reinforced masonry wall buildings with flexible diaphragms in Occupancy Category I or <br /> II are permitted to be based on the procedures specified in Appendix Chapter A2. <br /> 2.3. Seismic evaluation and design of cripple walls and sill plate anchorage in residential <br /> buildings of light - frame wood construction in Occupancy Category I or 11 are permitted <br /> 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 multiunit <br /> residential buildings of wood constriction in Occupancy Category I or 11 are permitted to <br /> be based on the procedures specified in Appendix Chapter A4. <br /> 2.5. Seismic evaluation and design of concrete buildings in all Occupancy Categories are <br /> permitted to be based on the procedures specified in Appendix Chapter A5. <br /> 3. Compliance with ASCE 31 based on the applicable performance level as shown in Table <br /> 3405.2.4.2. It shall be permitted to use the BSE -I earthquake hazard level as defined in <br /> ASCE 41 and subject to the limitations in item 4 below. <br /> 4. Compliance with ASCE 41 using the BSE -1 Earthquake Hazard Level defined in ASCE 41 <br /> and the performance level as shown in Table 3405.2.4.2. The design spectral response <br /> acceleration parameters S and S,, specified in ASCE 41 shall not be taken less than 75 <br /> percent of the respective design spectral response acceleration parameters Sus and Sp, defined <br /> by the California Building Code and its reference standards. <br /> 30 <br />