The Palouse RTPO is a transportation planning agency covering Asotin, Columbia, Garfield and Whitman Counties in eastern Washington. It represents cities, counties, WSDOT regions, transit agencies, ports, and large employers in the region, and each agency appoints representatives to serve on the Palouse RTPO Transportation Policy Board, the governing authority of the Palouse RTPO. The board engages and participates in regional transportation discussions and decision processes to achieve unified regional transportation planning for the four counties, as established and directed by RCW 47.80.