S-2.1, r. 4 - Safety Code for the construction industry

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4.8.2. When the shot-firer considers that the blasting area is safe, the shot-firer informs the employer that the employer may
(a)  sound the 15-second signal;
(b)  remove the blasting mats as soon as possible after the end of blasting;
(c)  excavate blasting debris.
R.R.Q., 1981, c. S-2.1, r. 6, s. 4.8.2; O.C. 1959-86, s. 68; O.C. 57-2015, s. 56.
4.8.2. The employer shall ensure that when firing is done electrically, no one shall return to the scene within 10 minutes, or longer, depending on ventilation, of the time at which the blasting current was applied.
R.R.Q., 1981, c. S-2.1, r. 6, s. 4.8.2; O.C. 1959-86, s. 68.