[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: 30CFR57.3360]

[Page 320]
 
                       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 B--Ground Control
 
Sec. 57.3360  Ground support use.

    Ground support shall be used where ground conditions, or mining 
experience in similar ground conditions in the mine, indicate that it is 
necessary. When ground support is necessary, the support system shall be 
designed, installed, and maintained to control the ground in places 
where persons work or travel in performing their assigned tasks. 
Damaged, loosened, or dislodged timber use for ground support which 
creates a hazard to persons shall be repaired or replaced prior to any 
work or travel in the affected area.

                  Precautions--Surface and Underground