Current through Register Vol. 55, No. 1, January 4, 2025
Section 43.91 - Loose rock(a) After the blast is fired, loosened pieces of rock shall be scaled from the sides of the excavation and after the blasting is completed, the entire working chamber shall be thoroughly scaled.(b) The foreman in charge shall inspect the working chamber and have all loose rock or ground removed and the chamber made safe before proceeding with the work.