(A) In addition to the other requirements of this chapter, diesel-powered equipment shall be operated pursuant to the requirements of this rule.
(B) All diesel-powered equipment shall be attended while in operation with the engine running in underground mines.
(C) Unnecessary idling of diesel-powered equipment shall be prohibited.
(D) The mine operator shall maintain all roadways upon which diesel-powered equipment is operated as free as practicable from bottom irregularities, debris and wet or muddy conditions that could adversely affect an equipment operator's ability to control the equipment.
(E) Operating speeds shall be consistent with conditions of roadways, grades, clearances, visibility, traffic and the type of equipment used.
(F) An equipment operator shall at all times have full control of the mobile equipment while it is in motion.
(G) Traffic rules, including speed, signals, and warning signs shall be standardized at each mine, and posted as necessary.
(H) Maintenance. All diesel-powered equipment shall be maintained in a safe and healthful operating condition. The operator shall immediately remove from service any equipment that is in an unsafe or unhealthful condition or is not maintained in accordance with the engine or emissions control operating specifications, and shall not return such equipment to service until all necessary corrective actions have been taken.