What version of the NEC are you looking at? I have the NEC 2008 Handbook and I don't get the meaning that you are suggesting.
Thanks SkipD for your reply, but what about the following exception?
Allows a detached building to be fed with three wires and have the panel neutral and grounding bus to be bonded. There must be no continuous metallic paths between the buildings.
Looking for clarification on this. If above is correct then, when they say Neutral and grounding bus bonded, Do they mean to say, "Bonded in the panel on the same bus, AND that ground is defined as a wire to an electrode?" as in, a second electrode, in addition to the one at the main svc panel, that would be outside of the garage?
We've got a few real experts on the NEC in the forum and I hope they pop in here to help out. I'm not a licensed electrician, though I've worked with industrial electrical systems for many years.