Mike Purdy summarizes here Washington's new bid preference law (copy at this link). The law does not adopt a straightforward preference for Washington contractors, but instead creates a "reciprocity" scheme: Nonresident contractors bidding on applicable Washington public works projects will be subject to a "comparable percentage disadvantage" if they are from a state that applies a percentage bidding preference to their own resident contractors. The new law is formally effective July 22, 2011 but actual implementation will wait until the General Administration adopts new reciprocity regulations.