4.7.2. Igniting fuses: In any given round, the maximum number of fuses to be lit by a single shot-firer shall depend on the length of the fuses used and the accessibility of adequate shelter. No fuse extending beyond a hole may be lit if its length or origin is unknown.
R.R.Q., 1981, c. S-2.1, r. 6, s. 4.7.2.