Directs the speaker of the house of representatives and the majority leader of the senate to convene a work group to analyze and identify nationally accepted best practice guidelines or protocols applicable to advanced diagnostic imaging services and any decision and support tools available to implement the guidelines or protocols.

Requires the Washington state health care authority, no later than January 1, 2010, to implement for all state purchased health care programs the nationally accepted best practice guidelines or protocols applicable to advanced diagnostic imaging services, and the decision and support tools to implement the guidelines or protocols.