DDA Client Guide

Becoming a DDA Client

A step-by-step guide to enrolling with Washington State's Developmental Disabilities Administration — so you can access the services and support you need.

What Is the DDA?

The Developmental Disabilities Administration (DDA) is a division of Washington State's Department of Social and Health Services (DSHS). DDA funds and coordinates services for individuals with developmental disabilities, including Life Skills training and Staff & Family Consultation.

Becoming a DDA client is the first step to accessing these services. The process involves verifying eligibility, completing an intake assessment, and working with a DDA case manager to build a support plan tailored to your needs.

Qualifying Conditions Recognized by DDA

  • Intellectual disability
  • Autism spectrum disorder
  • Cerebral palsy
  • Epilepsy
  • Other conditions originating before age 18 that result in substantial functional limitations

Who Is Eligible?

DDA serves individuals who have a developmental disability that originated before age 18 and results in substantial functional limitations in three or more of the following areas:

Self-care
Receptive and expressive language
Learning
Mobility
Self-direction
Capacity for independent living
Economic self-sufficiency

Step-by-step process

How to Become a DDA Client

01

Contact Your Local DSHS Office

Reach out to your nearest DSHS Community Services Office to request a DDA intake. You can call, walk in, or have a representative contact them on your behalf. Bring documentation of your disability diagnosis if available. Find your local DSHS office →

02

Complete the Intake Application

A DSHS intake worker will gather information about the individual's disability, functional limitations, and support needs. This may be done in person, by phone, or through a home visit.

03

Eligibility Determination

DDA will review the application and supporting documentation to determine eligibility. This process may take several weeks. You may be asked to provide medical records, psychological evaluations, or other diagnostic documentation.

04

Assessment and Support Plan

Once approved, a DDA case manager will conduct a comprehensive assessment to understand the individual's strengths, needs, and goals. Together, you'll develop an Individual Support Plan (ISP) that outlines the services and supports to be funded.

05

Service Authorization

After the ISP is finalized, DDA will authorize specific services. Your case manager can then refer you to contracted providers — like New Horizons Social Services — to begin receiving Life Skills or Staff & Family Consultation services.

Download the Full Guide

We've put together a printable PDF guide that walks through the entire process of becoming a DDA client — including what to bring, who to contact, and what to expect at each step.

Need Help Getting Started?

Our team is familiar with the DDA enrollment process and happy to answer questions. If you're unsure whether you or your family member qualifies, or if you need guidance on next steps, reach out to us directly.

Mailing address

557 W Bakerview Rd. #114, Bellingham, WA 98226