[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: 30CFR57.11052] [Page 373-374] 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 J_Travelways and Escapeways Sec. 57.11052 Refuge areas. Refuge areas shall be-- (a) Of fire-resistant construction, preferably in untimbered areas of the mine; (b) Large enough to accommodate readily the normal number of persons in the particular area of the mine; (c) Constructed so they can be made gastight; and [[Page 374]] (d) Provided with compressed air lines, waterlines, suitable handtools, and stopping materials.