Developmental Disabilities Administration Washington — DDA Eligibility, Application, and Services

What the DDA Actually Does

Washington's Developmental Disabilities Administration sits inside the Department of Social and Health Services (DSHS). It determines who qualifies for state-funded disability supports, assigns Case Resource Managers, and administers the waiver programs that pay for personal care, employment services, respite, and residential placements.

DDA eligibility does not mean the same thing as receiving services — a distinction that catches most families off guard. Roughly 20,231 people are DDA-eligible but sit on the No Paid Services caseload, receiving no funded supports at all. Getting through the eligibility door is step one; requesting specific services through a CARE functional assessment is step two.

Who Qualifies Under WAC 388-823

DDA recognizes five qualifying conditions:

• Intellectual disability — Full Scale IQ of 69 or below on a standardized test
• Cerebral palsy
• Epilepsy
• Autism spectrum disorder
• Another neurological condition closely related to intellectual disability — must produce similar functional limitations

The condition must originate before age 18 and be expected to continue indefinitely. DDA also requires evidence of substantial limitations in adaptive functioning: self-care, communication, learning, mobility, self-direction, capacity for independent living, or economic self-sufficiency.

For children initially deemed eligible under developmental delays or Down syndrome, eligibility now expires on their 20th birthday (raised from the historical 10th birthday limit under emergency rules matching HB 1407). Children eligible before age three see their eligibility expire at the fourth birthday, requiring a fresh application.

How to Apply: The DSHS 14-151 Packet

The application packet has three components:

1. DDA Application (Form DSHS 14-151) — the 3-page intake form
2. Consent Form — authorizes DDA to access medical and educational records
3. Notice of Privacy Practices — required acknowledgment

Submit these online through the DSHS DDA portal or by mail to the regional DDA office serving your county.

What accelerates processing: attaching all supporting documentation upfront rather than waiting for DDA to request it. The records that matter most are psychological evaluations with IQ scores, autism diagnostic reports, adaptive behavior assessments (Vineland, ABAS), school IEP records with present levels of performance, and any medical documentation of the qualifying condition.

DDA has up to 90 days to process an application. Families who submit a complete clinical packet — rather than the bare application — can reduce back-and-forth because the eligibility specialist has the records needed to review the application.

After Eligibility: Requesting Actual Services

This is where most families stall. DDA eligibility alone does not authorize paid services; you must separately request services.

To move from "eligible" to "funded," you must file a formal Service and Information Request — available online or through your regional DDA office's voicemail line. This request triggers a CARE functional assessment, which determines your support level and which services you qualify for.

If you meet the functional criteria for an institutional level of care, you can access Community First Choice — a Medicaid State Plan entitlement that provides personal care assistance without a waiver waitlist. This is the fastest path to funded services for families stuck on the No Paid Services caseload.

The Age-19 Eligibility Review

If your child's last eligibility determination happened before their 16th birthday, DDA is required to conduct a mandatory review when they turn 19. You'll receive a notice asking for updated medical and educational records.

Submit the updated documentation at least 60 days before the deadline listed on the notice. If DDA doesn't receive the information in time, eligibility automatically terminates on the client's 20th birthday.

Putting It Together

The DDA application is straightforward paperwork. The hard part is knowing that eligibility and services are separate tracks — and that you need to push for a CARE assessment once eligibility is confirmed. Our Washington SSI at 18 & Adult Disability Benefits Guide walks through the full sequence: DDA application, CARE assessment preparation, and waiver request strategy, so nothing falls through the cracks during the transition to adulthood.

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