The Washington State Health Care Authority (HCA) is initiating this Request for Proposals (RFP) to solicit proposals from Administrators interested in providing and administering tax-advantaged accounts for Participants of the Public Employees Benefits Board (PEBB) and School Employees Benefits Board (SEBB) Programs and other designated HCA programs. HCA launched RFI 4192 on this topic on January 15, 2020, to gain a greater understanding of the marketplace and offerings; participation in RFI 4192 was not required for participation in this RFP.