Blanks shall be stripped of loose rocks or other materials, which may slide, roll or fall upon persons below. No person shall be permitted to position or operate machinery in manner likely to endanger himself or others in the vicinity of excavation.
Blanks shall be stripped of loose rocks or other materials, which may slide, roll or fall upon persons below. No person shall be permitted to position or operate machinery in manner likely to endanger himself or others in the vicinity of excavation.