California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 17 - Mine Safety Orders
Article 35 - Mine Shafts
Section 7115 - Special Power-Driven Shaft Equipment

Before special power-driven mechanical equipment is used in a shaft for sinking or enlarging operations, the mine operator shall notify the Division in writing of the provisions made for the safety of employees.

If considered necessary by the Division, additional safeguards shall be provided.

This section applies to shaft boring machines, shaft drill jumbos, shaft mucking devices, prime movers, and other mechanical appurtenances used in connection with the operation of such equipment.