Previous NEC editions used the undefined term "ground return path," instead of "ground-fault current path." Now Art. 250 Part VI replaces the undefined term with a defined one.

The 2011 NEC also deleted the very general term "grounding conductor," replacing it with more accurate terminology. For example, in some places it was replaced by use of the term "equipment grounding conductor," in other places by the term "grounding electrode conductor" resulting in the use of wording much more specific to the application.