yes, that is corrrect you can put either one on the grn bar or the neutral bar provided the neutral bar has been "bonded" to the box. this is usually accomplished by a dissimilar looking screw which runs through the bar itself and into the back of the panel. as you said "busses" (bars) i am assuming that there are two neutral bars which are factory bonded together. at times this is not readily apparent as the sometimes run the jumper bar behind plastic and you can only see the connection between the two bars. hope this helps, this can only be done like this at the main service.
[This message has been edited by rizer (edited 04-28-2004).]
