I came across these wires connected to lugs on the top part of the main service panel. Two wires were running to one auxilary panel and the second two wires are running to the second auxilary panel. Both auxilary panels are about a foot away from the service panel. Each auxilary panel had 4 breakers in them.
I was told by an electrician at one time that this is allowed due to the short distance from the service box and the auxilary panel.
Is this true because I cannot find it in the NEC book.
I know there are double taps.