A grounding electrode at a separate building or structure shall be required where one multiwire branch circuit serves the building or structure.
See answer and applicable Code reference
The correct answer is: b) False
The grounding and bonding rules for buildings or structures supplied by a feeder(s) or branch circuit(s) can be found in Sec. 250.32 of the 2011 NEC. As noted in the Exception in 250.32(A), "A grounding electrode sh