http://www.cchgroup.com/wordpress/index.php/tax-headlines/state-tax-headlines/washington-sales-and-use-tax-tax-exemption-legislation-enacted/?utm_source=feedburner&utm_medium=twitter&utm_campaign=Feed%3A+StateTaxHeadlines+%28CCHGroup.com+%C2%BB+State+Tax+Headlines%29
Lots of exemptions here!