143(1)Where one area is to be blasted, the person who conducts an underground blasting operation shall, before blasting, cause all entrances to the area and all areas where the health or safety of employees may be endangered by the blasting to be guarded so as to prevent access to the areas during blasting.

143(2)A person who conducts an underground blasting operation shall, before blasting in one area, ensure that all persons have left areas referred to in subsection (1), except those required to assist in the blasting, and shall ensure that sufficient warning is given in every direction before the blast is fired.

143(3)An employer shall establish a code of practice for the blasting operation referred to in subsection (1), ensure that the code of practice is followed and make a copy of the code of practice available to an officer and the committee on request.

143(1)Where one area is to be blasted, the person who conducts an underground blasting operation shall, before blasting, cause all entrances to the area and all areas where the health or safety of employees may be endangered by the blasting to be guarded so as to prevent access to the areas during blasting.

143(2)A person who conducts an underground blasting operation shall, before blasting in one area, ensure that all persons have left areas referred to in subsection (1), except those required to assist in the blasting, and shall ensure that sufficient warning is given in every direction before the blast is fired.