In addition to being individually evaluated, large and small counties will have different sets of criteria. If any county fails one or more of the metrics below, that county will move down one Phase in the Heathy Washington plan.
For large counties to remain in Phase 3, defined as counties with more than 50,000 residents, they must keep a 14-day average of new COVID cases at or below 200 per 100,000 residents, and a seven-day average of new hospitalizations per 100,000 at five or fewer.
Smaller counties, those with populations of 50,000 or less, must maintain a 14-day average of new cases at 30 or fewer, and a new seven-day hospitalization average at three or fewer.
If at any point the statewide ICU capacity reaches greater than 90%, all counties will move down one Phase. The Department of Health always maintains the ability to move a county forward or backward at their discretion.
For more information: https://medium.com/wagovernor/inslee-announces-statewide-move-to-phase-3-of-recovery-plan-return-to-spectator-events-and-tier-2-4a53000f2724