George I'm sure you know this but I will list for the forum.
600.3 Listing.
Electric signs and outline lighting — fixed, mobile, or portable — shall be listed and installed in conformance with that listing, unless otherwise approved by special permission.
In some cases the components with in the sign are listed and the enclosure must be evaluated by the AHJ.
In our area most of the sign companies hold a masters electricians license, In Mass thats a contractors license.(State Regs).
I am aware that in some cases the inspectors will visit the place of business where the signs are assembled, but all to often the signs are up before the Inspector arrives.
Hope that helps
Charlie
edited for spelling
[This message has been edited by cpal (edited 02-09-2005).]
