Developmental Disabilities Division

401 Fifth Avenue
Suite 520
Seattle, WA 98104

ddd@kingcounty.gov
Phone: 206-263-9061
Fax: 206-205-1632
TTY: 711 Relay Service

Department :Community and Human Services

Eligibility Requirements for DDD Services

Children Under Age Three - Early Intervention (EI) Supports

To be eligible for Early Intervention (EI) supports, a child from birth until their third birthday must have a 25% delay or show a 1.5 standard deviation below his or her age in one or more of the following developmental areas:

  • Cognitive Development
  • Physical development, including vision, hearing, and fine and gross motor skills
  • Communication development
  • Social or emotional development
  • Adaptive development

Eligibility Contact Information: Contact Community Health Access Program (CHAP) (external) for more information or a referral for an evaluation for EI services. Phone: 206-284-0331, or toll-free: 1-800-756-5437.

Extraordinary Support Needs: For extraordinary support needs there may be other State DDD services available to families with children under age 3. For more information, contact your Early Intervention "Family Resource Coordinator " (FRC). If you do not know how to contact your FRC, or you don't already have a FRC contact Community Health Access Program (CHAP) (external) , phone: 206-284-0331, or toll-free: 1-800-756-5437.


Adults and Children Age Three and Older

County DDD, in cooperation with the State DDD, assists people with developmental disabilities. State DDD determines eligibility and provides case management, family support, and residential services.

Eligibility Definition:
Under Revised Code of Washington 71A.10.020(3) the definition in law of a developmental disability is:

A disability attributable to:

  • Mental Retardation
  • Cerebral Palsy
  • Epilepsy
  • Autism or
  • Another neurological or other condition closely related to mental retardation or that requires treatment similar to that required for individuals with mental retardation.
Which:
  • Originated before the individual attained age eighteen; and,
  • Continued or can be expected to continue indefinitely, and
  • Results in substantial limitations to an individual’s intellectual and/or adaptive functioning.

If you would like more information on how to become eligible to receive developmental disabilities services, please contact the State DDD at 206-568-5700 or 1-800-314-3296.

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  Updated: September 6, 2006