Proof of shots, and masks: Seattle sports fans under new rules - Sportspress Northwest
NFL placing all teams in intensive COVID-19 protocols
Coronavirus Updates : NPR
What Washington's latest mask mandate means for attending Seattle Seahawks home games - Field Gulls
Seattle Seahawks and Lumen Field to Require Proof of COVID-19 Vaccination
Rantz: Mask mandate ignored at Seahawks game, highlights progressive hypocrisy
Seahawks, Kraken, Sounders, UW, WSU require fan vaccinations
Sounders FC announces updated health and safety plan for remainder of 2021 season, in conjunction with Seattle Seahawks and Lumen Field
TSA no longer enforcing mask mandates on planes