Can someone please clarify and explain the CEC (California Electrical Code, California building code, the international residential code and the international building code) and which one we Califonians need to follow?

I always went off of the NEC. and now i am planning to hold a seminar on the one and two family dwelling using PP that references IRC and someone told me that California does not accept or adopt the IRC, it has adopted the International building code and the electrical that goes with it.

I would appreciate it if someone can PLEASE clarify in simple terms.

Thank you.

Be kind to your neighbor, he knows where you live