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ORD Article 1, Chapter 5 Building Code 16 -629 -ATTACHMENT B <br />TABLE 404.2.4.2 <br />PERFORMANCE CRITERIA FOR REDUCED CBC <br />LEVEL SEISMIC FORCES <br />OCCUPANCY <br />CATEGORY <br />(BASED ON CBC TABLE <br />1604.5) <br />PERFORMANCE <br />LEVEL <br />FOR USE WITH ASCE <br />31 <br />PERFORMANCE LEVEL <br />FOR USE WITH ASCE 41 <br />BSE -1 EARTHQUAKE <br />HAZARD LEVEL <br />I <br />Life Safety (LS) <br />Life Safety (LS) <br />II <br />Life Safety (LS) <br />Life Safety (LS) <br />III <br />Note a, Note b <br />Note a <br />IV <br />Immediate Occupancy (IO) <br />Immediate Occupancy (IO) <br />a. Acceptance criteria for Occupancy Category III shall be taken as 80 percent of the <br />acceptance criteria specified for Occupancy Category II performance levels, but need <br />not be less than the acceptance criteria specified for Occupancy Category IV <br />performance levels. <br />b. For Occupancy Category III, the ASCE screening phase checklists shall be based on <br />the life safety performance level. <br />