SFR Attic Draftstop - 2010 CRC (Based on 2009 IRC)

The 2010 CRC R302.12 provides requirements for draftstops at floor/ceiling assemblies. The only place I can see where attic draftstops are referenced in the CRC is at section R302.3 (for two-family dwellings). Under the 2010 CRC, is attic draftstopping required (under CBC 717.4 SFR attic areas > 3000 SF would require it ... but not under CRC)?
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