As required under Section 1902 of the Social Security Act (Act), the Plan was developed by our state and approved by the United States Department of Health & Human Services (DHHS). Without a State Plan, Washington State would not be eligible for federal funding for providing Medicaid services. Essentially, the Plan is our state's agreement that it will conform to the requirements of the Act and the official issuances of DHHS.

The State Plan includes the many provisions required by the Act, such as:

• Methods of Administration

• Eligibility

• Services Covered

• Quality Control

• Fiscal Reimbursements. 

Once the original Plan has been approved by DHHS, all future changes to the Plan must also be approved by DHHS before they can become effective. Plan changes are submitted by the state to DHHS as State Plan Amendments (SPAs). DHHS, through the Centers for Medicare and Medicaid Services (CMS), reviews each SPA to determine whether it meets federal requirements and policies. The Plan is updated when CMS issues final approval of a SPA.

A state can also ask DHHS to waive certain federal requirements to allow it greater flexibility to institute such programs as primary care case management systems, and home and community-based services in lieu of institutionalization. 

By law, a state's request to DHHS to approve a proposed State Plan, a SPA, or a waiver of a requirement, must be approved, disapproved, or additional information requested within 90 days of receipt. Otherwise, the request is considered to be approved. 

The Plan on this website is for informational purposes only and is not legally binding. The official Plan is maintained by CMS Region X. The files on these pages are available as read-only in Word and in Portable Document Format (PDF), which requires the use of Adobe Acrobat Reader.  The Adobe Acrobat Reader is necessary for the user to be able to read a PDF. Users must download and install the Reader as a plug-in.