The State of Washington GET program: http://www.get.wa.gov/.
Please review the Frequently Asked Questions on the GET website for a thorough understanding of how this program works.
For a comparison of Section 529 plans and additional information about the State of Washington's GET program please visit this website:
http://www.savingforcollege.com/529_plan_details/index.php?page=plan_details&plan_id=56