Yes, I should have noted there are limitations now if the latest NEC has been adopted. The change applies to all new buildings on the 2008 NEC I believe, which many areas haven’t even adopted yet. But even then there are still the two options for existing building systems where a remote building panel has been added. Home inspectors may find either option on inspections of existing buildings.
For an existing house I don’t think the second option (no ground with the feeder) is really a safety issue an inspector needs to comment on, even though it wouldn’t be permitted for all new construction under the latest NEC. My understanding is the change was made because you can have larger remote buildings where there is a remote subpanel without the ground on the feeder, and then another remote panel feeder is run with the ground … and then the two systems are somehow connected (e.g. both are bonded to building steel or metal water lines).
And I don’t know what that green wire is between the meter enclosure and the service panel is on the 3rd graphic. I didn’t notice that … :shock:. How about this revised one …