410 – Riding on Vehicles.

§ 410. Riding on vehicles. No person shall ride upon, or be permitted to ride upon, any loaded car, cage or bucket into or out of any mine or tunnel in process of construction.

415 – Head House and Trap Doors.

§ 415. Head house and trap doors. Every underground working over forty feet deep shall have a proper head house and proper trap doors which, when installed subsequent to the effective date of this act, shall be constructed of fire-resistant material.

416 – Timbering.

§ 416. Timbering. The roofs and sides of each passageway and working place in every mine and tunnel shall be properly timbered and shall be kept secure. No person shall work in an unsafe place except to make it safe.

417 – Ventilation.

§ 417. Ventilation. An air current sufficient to remove smoke and noxious gases and to insure the safety of every employee shall be conducted along every passageway and working place.