I don't think there will be any problems in changing NEC in California, and welcome the 2002, as I don't have to by a new copy! [Linked Image] And changes are minimal....

But.... Changing California Title-24 is a different story, it is what I have described as "Draconian". Huge sweeping changes in design, that will defininately take the unaware by surprise.
http://www.energy.ca.gov/title24/2005standards/2004-11-04_400-03-001F.PDF

Or for an over-veiw: http://www.energy.ca.gov/title24/earlycompliance/2004-06-03_LIGHTING_STNDS.PDF

Mark Heller
"Well - I oughta....." -Jackie Gleason