Administrative and Information Technology Contracts

Find acquisitions and contracts for Information Technology (IT) goods and/or services and professional services.

Latest COVID-19 guidance for industry partners

COVID-19 Vaccine Declaration (DOCX 29KB)
Vaccination Mandate Chart - September 30, 2021 (PDF 130KB) 
Proclamation 21-14 – COVID-19 Vaccination Requirement (PDF 47KB)
CSO-ACO Proclamation Resources (PDF 43KB)
Vaccine Mandate FAQ – See “Contract Management Materials” section at the bottom of the document. 

Washington's Electronic Business Solution (WEBS)

IT and Professional Services acquisitions that require formal competition are advertised through Washington State's common vendor registration and notification system. The vendor registration and notification system is called the Washington Electronic and Business Solution (WEBS). WEBS is a central online site where vendors may register to receive bid notifications from all participating government agencies.

Register for WEBS

Vendors can register for free in WEBS.

Minority and women-owned businesses

Minority and women-owned businesses are encouraged to compete for business with the state of Washington. The Office of Minority and Women's Business Enterprise (OMWBE) is responsible for developing programs to improve the contributions of minority and women-owned businesses. For more information about OMWBE, including how to become a certified business, see the OMWBE website at

Veteran-owned businesses

State law encourages agencies to award three percent of all procurement contracts that are exempt from competitive bidding requirements to certified veteran-owned businesses. For more information about becoming a certified veteran-owned business, visit the Veteran Business Registry at the Department of Veteran Affairs website.

Read the flyer Contracting with WSDOT (PDF 31KB) for more information about contracting with WSDOT or contact us directly for additional information.

Current acquisitions

Notice Date

Document Name


Response Deadline

    None at this time  

Interlocal agreements

RCW 39.34, the Interlocal Cooperation Act, provides the authority for Washington state agencies such as WSDOT to contract with other governmental entities. This law includes a requirement for either filing Interlocal agreements with county recording offices, or publishing a list of all such contracts.

To comply with RCW 39.34.040, ACO has elected to publish a list of its Interlocal, Intergovernmental and Interagency Agreements (PDF 71KB). ACO maintains this page and publishes the list quarterly.

Sole source contract notification

RCW 39.26.140 (1) requires that agencies make sole source contracts available for public inspection for a period of not less than ten working days before the proposed starting date of the contract.

RCW 39.26.130 (2) requires that emergency contracts be made available for public inspection within three working days following the commencement of work or execution of the contract, whichever comes first.

Date Purchased


Contracted Vendor


None at this time      

Emergency contract notification

Emergency declaration documents

Request a record

Request a copy of a contract

To request records, fill out a Public Disclosure Form (DOCX 25KB) and send it to the Records & Information Services office by email, fax or mail.

Please make sure you submit a detailed description of the requested records, including as much information as possible.

Submit a request

Submit your request to:

Records & Information Services
PO Box 47410
Olympia, WA 98504-7410

Phone: 360-705-7734
Fax: 360-705-6808

8,683 animals crossed the Snoqualmie Pass East Project area

as recorded by WSDOT and partners in 2020 and 2021.

46% increase in Amtrak Cascades ridership to 251,000 passengers

in 2021 compared to 172,000 in 2020.

Nine wetland and stream mitigation sites across 32.7 acres added

to our monitoring program in 2021 to help offset climate change impacts.