CFR /  Title 49  /  Part 229  /  Sec. 229.85 High voltage markings: doors, cover plates, or barriers.

All doors, cover plates, or barriers providing direct access to high voltage equipment shall be marked ``Danger-High Voltage'' or with the word ``Danger'' and the normal voltage carried by the parts so protected. [77 FR 21346, Apr. 9, 2012]