[Code of Federal Regulations] [Title 30, Volume 1] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 30CFR56.4331] [Page 264] TITLE 30--MINERAL RESOURCES CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR PART 56--SAFETY AND HEALTH STANDARDS--SURFACE METAL AND NONMETAL MINES--Table of Contents Subpart C--Fire Prevention and Control Sec. 56.4331 Firefighting drills. Emergency firefighting drills shall be held at least once every six months for persons assigned firefighting responsibilities by the mine operator. Flammable and Combustible Liquids and Gases