Corrosion protection of exposed steel

[StructTaco]

Is corrosion protection required per code for exposed steel. I have some cable anchors for a large zipline that are not galvanized, but should be. Is this a code requirement, or can they be painted, or can we assume that rust will take some of the steel section over the life of the structure and account for that in the thickness specified?

Thanks!

 

[StructTaco]

I spoke to the local building department and they say that exposed steel is required to be galvanized and that it is in the 2006 IBC/2007 CBC. Anyone have any idea where, I can't find it...? Thanks