Minn. R. 4660.8420
DISTRIBUTION PANEL BOARDS
Subpart 1. Existing and new. All circuits in light and power panels shall be identified with a typewritten index. It is recommended that doors on electrical panel boards accessible to patients or residents be equipped with a lock. Subp. 2. New construction. Lighting and appliance panel boards shall be provided for the circuits on each floor, except for emergency system circuits.