The principal location of the private security guard licensing program is at 405 Black Lake Boulevard S.W., Olympia, Washington 98504. The department of licensing administers the Washington private security guard license law, chapter 18.170 RCW. Submissions and requests for information regarding private security guard company licenses, private security guard licenses, and armed private security guard licenses may be sent in writing to the Private Security Guard Program, Department of Licensing, P.O. Box 9649, Olympia, Washington 98507-9649.