Section 56.6133 - Powder chests (a) Powder chests (day boxes) shall be- - (1) Structurally sound, weather-resistant, equipped with a lid or cover, and with only nonsparking material on the inside;
- (2) Posted with the appropriate United States Department of Transportation placards or other appropriate warning signs that indicate the contents and are visible from each approach;
- (3) Located out of the blast area once loading has been completed;
- (4) Locked or attended when containing explosive material; and
- (5) Emptied at the end of each shift with the contents returned to a magazine or other storage facility, or attended.
(b) Detonators shall be kept in separate chests from explosives or blasting agents, except if separated by 4 inches of hardwood, laminated partition, or equivalent.
TRANSPORTATION
053-2 Wyo. Code R. § 56.6133