Panels that are in compliance with the UL product standard for Panelboards are required to have one neutral termination space for each breaker space. They are not required to have an EGC terminal bar and most of the time, in a new panel, where neutrals are doubled up, it is because the contractor used the neutral bar for EGCs. This in itself is not a violation at the service panel, but it becomes a violation when you double up a neutral.
Don(resqcapt19)
