• Occupational Safety and Health Division

    Daniel Massey, Explosives Licensing and Safety Supervisor
    P.O. Box 44655
    Olympia, WA 98504-4655

    Phone: 360.902.5569
    Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Website: www.lni.wa.gov/tradeslicensing/licensingreq/explosives
    https://app.leg.wa.gov/RCW/default.aspx?cite=70.74