Sole Source and Emergency Purchase Announcements


It is the intent of Washington State to promote transparency for all contracts for goods and services.  As per Policy #DES-140-00, notice of all intended agency sole source contracts must be posted on the state's enterprise vendor registration and bid notification system (currently the Washington's Electronic Business Solution (WEBS)).

Under state law (RCW 39.26.140(1)), agencies are required to make sole source purchases available for public inspection for a period of not less than 10 working days prior to the intended contract start date.

Under state law (RCW 39.26.130), agencies are required to make emergency purchases available for public inspection within 3 working days following the commencement of work or the execution of the contract, whichever occurs first. Information must remain available for the term of the contract or 5 working days, whichever is greater.

Pending approval by the WA Department of Enterprise Services, the Eastern Washington State Historical Society dba Northwest Museum of Arts and Culture, intends to award a sole source contract for the following goods or services:

Title:  Exhibits Development Group - Exhibition Rental Agreement
Description: Proposed sole source contract between Eastern Washington State Historical Society dba Northwest Museum of Arts and Culture and the Exhibits Development Group to license the exhibition Pompeii: The Immortal City
Estimated Value: $450,000
Close Date: Friday, March 22, 2019
Posting Organization: Eastern Washington State Historical Society dba Northwest Museum of Arts and Culture

The definition of a sole source contract, as per RCW 39.26.010, is one where the contractor providing goods or services of such a unique nature or sole availability at the location required that the contractor is clearly and justifiably the only practicable source to provide the goods or services. 

Review this sole source contract.
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F

If you feel your firm is able to provide the goods or services listed above, please login to WEBBS at

Once logged in, you should be taken directly to this notification.  To view solicitations, click "Search Opportunities" in the menu on the left hand side.

The sole source notice should include a description of the purpose and scope of the intended contract, the criteria or rationale justifying the sole source contract, the name of the prospective contractor, the projected contract value, the period of performance, and the process for vendor inquiries or responses, including timelines and requirements.  Any questions regarding this notice should be directed to the contact person listed in WEBS. 

If the link does not work properly, please copy the link into the address line in your browser.

If you need technical assistance, please contact WEBS Customer Service via email at or by phone at (360) 902-7400.

If you would like to make any comments about this sole source contract, please contact Francis Langston at