[Code of Federal Regulations] [Title 30, Volume 1] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 30CFR57.4202] [Page 336] TITLE 30--MINERAL RESOURCES CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR PART 57_SAFETY AND HEALTH STANDARDS_UNDERGROUND METAL AND NONMETAL MINES --Table of Contents Subpart C_Fire Prevention and Control Sec. 57.4202 Fire hydrants. If fire hydrants are part of the mine's firefighting system, the hydrants shall be provided with-- (a) Uniform fittings or readily available adapters for onsite firefighting equipment; (b) Readily available wrenches or keys to open the valves; and (c) Readily available adapters capable of connecting hydrant fittings to the hose equipment of any firefighting organization relied upon by the mine.