Developmental Disabilities Administration (DDA)

Latest News

09/17/2021 - Five waiver amendments were approved by the Centers for Medicare and Medicaid on September 16, 2021, with an effective date of October 1, 2021

08/25/2021 - On September 8, 2021, at 4:00 p.m., the Developmental Disabilities Administration will host an opportunity for public feedback regarding proposed changes to the Children’s Intensive In Home Behavior Supports, RCW 71A.24.010 and RCW 71A.24.020, to align with federal requirements to ensure continued federal funding for these services. Public comments may be submitted to DDAWaiver@dshs.wa.gov until Sept. 22, 2021.  Register for the public webinar here | View the draft waiver (PDF)

08/02/2021 - DDA Privacy Breach

COVID-19 (Coronavirus) Information & Resources Page


What We Do

The Developmental Disabilities Administration is transforming lives by providing support and fostering partnerships that empower people to live the lives they want. The 2021-2023 Strategic Plan describes our work and expected outcomes to accomplish the mission.  

People with developmental disabilities and their families are valued citizens of the state of Washington. The Developmental Disabilities Administration strives to develop and implement public policies that will promote individual worth, self-respect, and dignity such that each individual is valued as a contributing member of the community. The Developmental Disabilities Guiding Values encompasses our vision and values for inclusive communities.

For more information about our programs and services, see the 2020 Developmental Disabilities Administration Caseload and Cost Report.

Report abuse online or by phone.