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ORD Article 1, Chapter 5 Building Code 16-629- ATTACHMENT A <br />TABLE 404.2.4.1 <br />PERFORMANCE CRITERIA FOR CBC LEVEL SEISMIC FORCES <br />OCCUPANCY <br />PERFORMANCE LEVEL <br />PERFORMANCE <br />CATEGORY <br />FOR USE WITH <br />LEVEL FOR USE WITH <br />(BASED ON CBC <br />ASCE 41 BSE -1 <br />ASCE 41 BSE -2 <br />TABLE 1604.5) <br />EARTHQUAKE <br />EARTHQUAKE <br />HAZARD LEVEL <br />HAZARD LEVEL <br />I <br />Life Safety (LS) <br />Collapse Prevention (CP) <br />II <br />Life Safety (LS) <br />Collapse Prevention (CP) <br />III <br />Note a <br />Note a <br />IV <br />Immediate Occupancy (IO) <br />Life Safety (LS) <br />a. Acceptance criteria for Occupancy Category III shall be taken as 80 percent of the acceptance <br />criteria specified for Occupancy Category II performance levels, but need not be less than the <br />acceptance criteria specified for Occupancy Category IV performance levels. <br />