162(1)Where there is no reason to suspect that a charge has misfired, all persons shall remain outside the danger area until ten minutes after the last charge explodes.

162(2)No person shall enter a danger area where a blast has been fired until a person designated by the employer makes a thorough inspection of the site and approves the area as safe.

162(3)An employer shall ensure that a person designated under subsection (2) is competent.

162(4)Notwithstanding subsection (2), a person when making an inspection under subsection (2) may be accompanied by an assistant who is under the continuous supervision of the person.