WAC 296-52-67075
Blast area precautions. (1) Warning
signs. Blast area warning signs must:
(a) Be set up at all entrances to the blast area.
(b) Have lettering a minimum of four inches high and on a
contrasting background.
(2) Loaded stumps. All loaded stumps must be marked for
identification.
(3) Lock out. Cables close to the blast area must be
deenergized and locked out by the blaster in charge.
[Statutory Authority: RCW 49.17.010, [49.17].040, and[49.17].050
. 02-03-125, § 296-52-67075, filed 1/23/02, effective
3/1/02.]