Mining or construction work that needs to be done underground, underwater, in a cave in a mountain tunnel or shaft in unless the characteristics of the work does not endanger the health or bodily injury of an employee then.
Mining or construction work to be done underground, underwater caves, tunnels or shafts in the mountains. Unless the job is not harmful to the body or health of the employee.
Mining or construction work to do underground underwater in a cave in tunnel or vent in the mountains. Unless the harmless to health or body of employees.