Weve continued to monitor data from our state Department of Health, and have determined we are able to adjust the timing of our statewide mask requirement, Inslee said in the joint statement. Choose your metric, and those have all been coming down in parallel, Snohomish County Health Officer Dr. Chris Spitters said this week. Snohomish County is likewise lifting its mask . We're still working on this, but watch for an upcoming Tribune to However, masks remain an important tool to keep travel and public transportation safer for everyone.