The Ufer is also part of our footer inspections. They do allow the turned up rebar inside a CMU core and it is marked so it won't get poured solid like the other doweled cells. The AHJs do prefer the #4 copper but it was turning up missing when they set the service so often that they hold their nose and allow the rebar. I have heard some do want that cell packed solid with concrete after the #4 is attached to meet the "concrete encased" requirement. Others go the other way and want the acorn to remain accessible. (Blank cover over the whole) The stucco guy will usually be the one who packs the hole when he is doing the outside finish, generally after the panel is set for temporary service.
