WSDOT and WSP partner up to educate and enforce SR 520 HOV 3+ rule https://www.kiro7.com/news/local/wsdot-wsp-partner-up-educate-enforce-sr-520-hov-3-rule/GVQ44... (opens in new tab)

WSDOT and WSP partner up to educate and enforce SR 520 HOV 3+ rule