95-229.8. Warning signs.
(a) No person shall, individually or through an agent or employee or as an agent or employee, operate any covered equipment in the proximity of a high-voltage line unless warning signs are posted and maintained as follows:
(1) A sign shall be located within the equipment and readily visible and legible to the operator of such equipment when at the controls of such equipment; and
(2) Signs shall be located on the outside of equipment so as to be readily visible and legible at 12 feet to other persons engaged in the work operations.
(b) If the Commissioner of Labor determines that a successor, substitute, or additional sign standard may or shall be used in place of the requirements listed in G.S. 95-229.6, a period of not less than 18 months from such determination shall be allowed for any required replacement of signs.