My questions that started this discussion stem from a job that I'm going to be working on where the brick is on the inside wall and outside of the house on a new "sunroom addition" but I also have to put the required receptacle on the outside of the house and a light by the exit door. After I posted my question, I went to a local subdivision where there are new houses being built. I noted that all of the boxes on the outside are blue plastic Carlon boxes that the nails have been removed from and they are hanging on about 10" of slack cable. I did not note whether the cable was UF or NM. I am going to call the building inspector Tuesday and get the matter cleared up. I have already bought the romex to pull the new circuit through the attic and into the new sunroom addition. I guess if I have to use UF for the outside recepts, I will splice the romex to the UF in one of the boxes before it goes to the outside receptacle. Thanks for the replies!!!