In crisis?
Due to COVID-19, HCA’s lobby is closed. Learn more about your customer service options.
Contact us
Stay up-to-date on HTA assessments.
Phone: 360-725-5126
Email: shtap@hca.wa.gov
TRS users
Dial 711 through the Washington Relay service.
Mailing address
P.O. Box 42712
Olympia, WA 98504-2712