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ALERT: King County is updating its vaccination Attestation Form with regards to contract workers on King County sites who test positive for COVID-19. The change in the form reduces the waiting period for workers testing positive from 14 days to 5 days as stated below:

"Workers for any contractor who test positive for COVID-19 may not enter a King County operated facility until 5 days after symptoms have ended."

The COVID-19 Vaccine Attestation form has been updated regarding this change. If you have previously submitted a COVID-19 Vaccine Attestation form for your organization, you will not be required to submit a new one. You may follow this new guidance without any additional paperwork.

A new Executive Order was issued on September 22, 2021 to address COVID-19 safety issues.

Under the Order, effective October 18, 2021, all county contractors and volunteers working onsite (Workers) at Executive branch agencies (Agency/Agencies) will need to be fully vaccinated if the work is required to be performed in person and on site. This includes but is not limited to on county property or in county facilities or work requiring interaction with the general public, regardless of frequency, whether or not other workers are present, and including at indoor or outdoor worksites, except as noted below.

If a contractor provides contracted goods or services in person and on-site, their firm is subject to the vaccination requirements set forth in the Order. The contractor assumes responsibility for full COVID-19 vaccination verification for their Workers and the Workers of any subcontractors affected by the Order. The County retains the right to inquire into compliance with the verification requirements at any time, which can include requesting a copy of the verification plan, spot-checking with such personnel, and reviewing your firm's vaccination verification records.

What does this mean for your company?

If your company performs work in person and on-site for an agency covered under the Executive Order, you must submit a completed Attestation Form to

What counts as a "worker"?

  • A person engaged to work as an employee, temporary staff, on-site volunteer, or onsite contractor for a county agency covered under the Executive Order.

The Executive Order does not include:

  • Visitor or patrons who are not workers
  • Workers who are present at a site for only a short period of time and have a fleeting physical presence with others. This could include:
    • Contractors delivering supplies by truck to a construction site where they remain physically distanced from others on the site.
    • Refuse truck or a driver for a contracted shipping and delivery service briefly entering a site to pick up parcels for shipping.
    • Recipients of funds distributed by an Executive branch agency, but where work is performed at a different physical location.

What is “full vaccination” and what evidence is required?

A Worker is not fully vaccinated until 14 days after the last shot required in any vaccination series and the Worker must have received any vaccinations as may be recommended by the Centers for Disease Control and Prevention (CDC). Workers must provide proof of full vaccination against COVID-19 by providing one of the following:

  • CDC COVID-19 Vaccination Record Card or photo of the card;
  • Documentation of vaccination from a health care provider or electronic health record; State immunization information system record; or
  • For an individual who was vaccinated outside of the United States, a reasonable equivalent of any of the above.

What is an "Executive Branch" agency at King County?

Executive branch agencies report to the County Executive and include:

  • King County Elections
  • King County Sheriff
  • King County Metro
  • Department of Adult and Juvenile Detention (DAJD)
  • Department of Assessments (DOA)
  • Department of Community and Human Services (DCHS)
  • Department of Executive Services (DES)
  • Department of Human Resources (DHR)
  • Department of Information Technology (KCIT)
  • Department of Local Services (DLS)
  • Department of Natural Resources and Parks (DNRP)
  • Department of Public Defense (DPD)
  • Department of Public Health (DPH)

If you have any questions about whether this Order applies the agency you contract with, please contact the Agency.
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