Firestopping Attic Trusses

[brndaj]

We are building a new garage with a bedroom over the top.  The trusses are 48 feet long with a 6 foot overhang in the front and a 1 foot overhang in the back.  There is an 18 foot attic in the truss, my question is,  how do I go about firestopping the open spaces in the truss? 

[Don_P]

 
This is the code section, read through the next several pages.
http://publicecodes.cyberregs.com/icod/irc/2009/icod_irc_2009_3_par072.htm?bu2=undefined
Drywall on a face is usually the cheapest and easiest, prior to the trades coming in.