Since I have an "affliction" for knowledge (wonder if there's a support group?) and have a pretty good background in building codes because of work, I checked into Louisiana's codes. The state-adopted codes are the 2000 International Building Code, the 1999 National Electric Code, and the 2003 NFPA. IBC is becoming the national standard (Tennessee is adopting it in place of the Standard Building Code this summer because SBC is being phased out). NEC and NFPA are both widespread and have been for quite some time.