Cal. Code Regs. tit. 8 § 7165
Current through Register 2024 Notice Reg. No. 50, December 13, 2024
At every mine with an escape exit required by these Orders, telephone communication for emergency purposes shall be provided between the underground telephone stations and the principal surface telephone station, by way of the escape exit, provided, however, that other equally rapid means of communication may be used between surface stations.
Such emergency system shall be in addition to the telephone system required by Section 7164.
Cal. Code Regs. Tit. 8, § 7165