WAC 212-17-323   Installation of mortar racks.  (1) Single break shells not exceeding six inches in diameter shall be permitted to be fired from securely positioned mortar racks.

     (2) Firing of single break shells that are seven or eight inches in diameter shall be permitted from securely positioned mortar racks provided the following conditions are met:

     (a) The mortar is not metallic;

     (b) Electrical or equivalent means of remote ignition is used to fire the shell; and

     (c) The shell is not chain fused to any other shells.

     (3) Mortar racks or bundles shall be constructed in a thorough and workmanlike manner to be capable of holding multiple mortars in position during normal functioning.

     (4) Mortar racks or bundles that are not inherently stable shall be secured or braced to stabilize them. Stabilization shall be accomplished by using stakes, legs, A-frames, side-boards or equivalent means.

     (5) Mortar racks of bundles shall be oriented, angled, or oriented and angled in such a way that maximizes the audience's safety.



[Statutory Authority: Chapters 43.43 and 70.77 RCW. 06-12-010, § 212-17-323, filed 5/26/06, effective 6/26/06.]