33. A person wishing to make use of or store blasting agents only, including the “slurries” falling in that class of explosives, is not subject to the rules prescribed in sections 15 to 22. However, those explosives shall be kept locked and visited at irregular intervals once every 6 hours by a guard using a punch-clock, whenever mining operations where the magazine is located are interrupted.
R.R.Q., 1981, c. E-22, r. 1, s. 33.