AFAIK low voltage computing devices or peripherals that don't have radios in them i.e. wi-fi or bluetooth, or don't connect to a phone line, don't need to be actually tested by the FCC themselves any more, thus won't get an ID tag. They have to be independantly certified as compliant with part 15, but that's by any of ~300 test labs.
BUT you are probably not aware of the fact that even if certified it was always on the USER to ensure that in service it did not interfere with anything, and to resolve any complaints of interference.
A metal box is pretty much a faraday cage though, so there should be no problem.
I believe BFL also does not regard these products as "consumer" products, and they may come under the commercial exemption to part 15
http://www.i-spec.com/EMC/usa.htmlMore importantly however...
WARNING: BFL PRODUCTS ARE NOT CERTIFIED AS KOSHER AND ARE NOT SUITABLE FOR CONSUMPTION BY PRACTICING JEWSI also demand LD50 information in case I accidentally blend it into a fine powder and feed it to a 2 year old. It's important to know if 2 and half teaspoons is okay but 3 isn't.
EDIT: Poes Law strikes again..
http://en.wikipedia.org/wiki/Poes_law The last 3 lines were sarcasm. I'm forgetting again that the rabid, raving BFL haters have become impossible to parody, due to there being no belief crazy enough that you can't be sure they wouldn't actually subscribe to it.
