RCW 70.74.160: Unlawful access to explosives.

No person, except the director of labor and industries or the director's authorized agent, the owner, the owner's agent, or a person authorized to enter by the owner or owner's agent, or a law enforcement officer acting within his or her official capacity, may enter any explosives manufacturing building, magazine or car, vehicle or other common carrier containing explosives in this state. Violation of this section is a gross misdemeanor punishable under chapter 9A.20 RCW.