111.40-11—Numbered switching unit and panelboard directory.
(a)
Each panelboard switching unit must be numbered.
(b)
Each panelboard must have:
(1)
A circuit directory cardholder; and
(2)
A circuit directory that has:
(i)
The circuit designation of each circuit;
(ii)
A description of the load of each circuit; and
(iii)
The rating or setting of the overcurrent protective device for each circuit.