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 7113 - (19-110). Protection Against Falling Materials
Universal Citation: 8 CA Code of Regs 7113
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(a) When a bucket or skip is used for hoisting while sinking a new shaft or deepening a shaft already in operation, workers in the shaft shall be protected against falling rocks and materials by one or both of the following means:
(1) Trap
doors shall be installed at the shaft collar over openings in pentices and
bulkheads, and under dumping points in the shaft for buckets and skips. Such
trap doors shall be substantially constructed and so arranged that they can be
readily and easily opened and closed.
It is recommended that trap doors at the collar be operated by compressed air and that the controls be located convenient to the hoistman.
(2) Some other
equally effective means acceptable to the Division.
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