Yes! Food Worker Cards obtained in Washington State are valid in all counties of the state regardless of where you took the test. Unfortunately, records are kept separately in each county (unless obtained online), so if you lose your card you will need to contact the county where you got it for a replacement. Clallam County is only able to replace cards from other counties obtained through the statewide online food safety program Do it Right, Serve it Safe managed by Tacoma Pierce County.
Note: Food Worker Cards from other states are not valid in the State of Washington as food safety requirements vary from state-to-state. You will need to take Washington's required Food Worker class and pass the exam to obtain a Washington State Food Worker Card.