46 C.F.R. § 111.40-11
Numbered switching unit and panelboard directory.
Cite as 46 C.F.R. § 111.40-11 (2026)
(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.