I have just added a circuit to my main panel and saw something I wanted clarification on. For reference, my main panel is a Homeline 30 space panel with 2 extra grounding bars on the sides. Picture for reference.
I know that in a main panel, you can have grounds and neutrals on the same bar, since they are bonded together at the main anyway. But doesn't that only pertain to the 2 inner neutral/ground bars, the ones that have the bonding screw. I found several neutral wires on the grounding bars on that are near the edges of the panel. From my understanding, wouldn't that be against code since the panel body is now carrying the return current for those particular circuits. In other words, should those 2 outer bars ONLY have grounding wires on them, while the 2 inner bars can have ground AND neutral wires.
Thanks for any input.