There is an inspector in our area who is writing a violation to the contractors using the large capacity non-metallic boxes for romex jobs where the box is ±3 inches deep. We are talking about our 22+ cu. in. boxes. When these boxes are nailed to a 2 X 4 stud they take up almost the entire stud width. The violation according to him is he says the box needs protection from drywallers so he wants nail plates installed behind the box. His code reference is NEC 110.27(B). I disagree because this code reference has to do with "Guarding of live parts" IMHO, he is going waaaay overboard. What say you?
