Requires the state health care authority to convene a work group to analyze and identify evidence-based best practice guidelines or protocols applicable to advanced diagnostic imaging services and any decision support tools available to implement the guidelines or protocols.

Terminates the work group on July 1, 2010.

Requires all state purchased health care programs, except for state purchased health care services that are purchased from or through health carriers as defined in RCW 48.43.005, to implement evidence-based best practice guidelines or protocols applicable to advanced diagnostic imaging services and the decision support tools to implement the guidelines or protocols.