4.6.11. At the first signs of a thunderstorm, the employer must stop all loading and detonator connecting operations. The employer must evacuate the blasting area, prohibit access thereto and supervise the situation from a distance.
R.R.Q., 1981, c. S-2.1, r. 6, s. 4.6.11; O.C. 57-2015, s. 41.