Question for Ryan J. Ryan, what does the IBC stand for ? Is it International building code ? Honolulu City and County works off the Uniform Building Code. I do not know how similar they are to each other, but I still am uneasy running romex in any structure over 3 floors yet, because of possible confusion on my part or the local ahj about the different types of construction may cause my having to rip the stuff out and lose time and money.