Is there an ROP stating the reasoning for deleting this sentence? I have always thought that was there to make sure emergency circuits met the redundant grounding requirements of 517-13. Someone could meet the requirements of 517-30(C)(3) by running EMT without an equipment grounding conductor (using the EMT as an equipment ground)in non patient care areas. I have never read that as allowing flexible methods in patient care areas. [Linked Image]