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 an overhead high voltage line unless there is posted and maintained a warning sign placed as follows:
1. Within the equipment and readily visible and legible to the operator of such equipment when at the controls of such equipment; and
2. On the outside of equipment in such numbers and locations as to be readily visible and legible at 12 feet to other persons engaged in the work operations.
B. It shall be the duty and responsibility of the owner, lessee, or employer of any covered equipment to acquaint themselves, and their employees who will be operating the equipment or will be engaged in work, with the provisions of this chapter and the regulations prescribed and promulgated pursuant to it.