Cooperative Purchasing Agreements

RCW 39.34 permits local governments to enter into interlocal agreements with other public agencies in the interest of cooperatively sharing resources for their mutual benefit. These agreements allow agencies such as Cowlitz County to “piggyback” on selected contracts to satisfy both state and local bidding requirements, while also increasing access to competitively bid pricing on materials, equipment, supplies, and services. 

In accordance with RCW 39.34, Cowlitz County has executed the following interlocal cooperative purchasing agreements with public agencies and organizations for various purposes over the years. Questions regarding new or existing agreements can be directed to Ashley Claussen via email at