I'm considering running EMT through my shop for outlets, etc. Does the NEC allow me to use EMT as ground (i.e. no need for ground wire)?
A related question: I may run wire through the shop's attic to get to the other side. This wire will not need conduit (NEC specifies wire must be protected if it is in a "high risk" area). Can I transition from EMT to 12/2 wire inside the attic, then transition back to EMT on the other side? I'm guessing I could use either a three-strand cable or just staple individual THHN wires along either the ceiling joists or rafters.