PDFWAC 296-52-69060
Precautions for areas surrounding magazine.
(1) Firearms. Only qualified guards and qualified law enforcement officers are allowed to carry firearms inside or within fifty feet of a magazine.
(2) Area maintenance. The area surrounding magazines must:
(a) Be kept clear of rubbish, brush, dry grass, or trees, except live trees more than ten feet tall, for a minimum of twenty-five feet in all directions;
(b) Be free of volatile materials for a minimum of fifty feet from outdoor magazine;
(c) Have the ground around storage facilities slope away for drainage; living foliage does not need to be removed.
(3) Fire sources. Smoking, matches, open flames, and spark producing devices are not permitted:
(a) In any magazine;
(b) Within fifty feet of an outdoor magazine; or
(c) In any room containing an indoor magazine.
(4) Warning sign.
(a) Access routes. All normal access routes to explosive material storage facilities, except Class 3 (1.4) magazines, must be posted with warning signs that read:
DANGER
NEVER FIGHT EXPLOSIVE FIRES
EXPLOSIVES ARE STORED ON THIS SITE
CALL
(b) Sign specifications and placement. Signs must:
(i) Be contrasting in color;
(ii) Have the pin stroke of the letters a minimum of three inches (75 mm) high and one-half inch (12.5 mm) wide;
(iii) Be placed so a bullet passing through the sign will not strike a magazine;
(iv) Not be attached to magazines.
(c) Transportation placards. Placards required by the U.S. Department of Transportation (DOT) (49 C.F.R.) for transporting blasting agents must be displayed on all Class 5 magazines where blasting agents are stored.