As referenced to what?? if the other meter lead is on the ground bus the answer is no if they are properly bonded at the service equipment, if there is potential between neutural and ground they are not bonded properly.
Slight quibble here. If there is sufficient load on the
sub panel(s), you can measure a voltage difference between the neutral and the ground busses. In fact, when in a sub panel, if there is 0 Volts between them, and there is significant loading of the panel, I would check for an improper neutral to ground bond.
Larry C
