Senate Bill 6058 was introduced in the state legislature in February 2001, and referred to the Education Committee. The bill would require "all science textbooks purchased with state moneys" to contain an evolution disclaimer very similar to that required in Alabama since 1995. The bill had not been taken up in committee before the legislature adjourned its regular session on April 22.
For the text of SB 6058, see http://dlr.leg.wa.gov/billsummary/default.aspx?year=2001&bill=6058
The website of Pacific Northwest Skeptics contains more information about the bill at http://www.eskimo.com/~pierres/6058.html [website shut down permanently on 15 April 2003]