1. (1) For evidence of adaptive skills limitations, DDA accepts a qualifying score from one of the following assessments completed in the past 36 months.

   1. (a) Assessments must be administered and scored by professionals who have a background in individual assessment, human development and behavior, tests and measurements, and knowledge of individuals with disabilities.
   2. (b) DDA will administer or arrange for the administration of the ICAP only if results from one of the other acceptable tests are not available within the past 36 months.
   3. (c) Authorized administration staff or contracted designee must administer the ICAP.

   Assessment	Qualifying Score
   Vineland adaptive behavior scales (VABS)	An adaptive behavior composite score of 69 or less
   Scales of independent behavior - Revised (SIB-R)	A broad independence standard score of 69 or less
   Adaptive behavior assessment system (ABAS)	An adaptive behavior composite score of 69 or less
   Inventory for client and agency planning (ICAP)	A broad independence standard score of 69 or less
   Diagnostic adaptive behavior scale (DABS)	A broad total adaptive score of 69 or less

2. (2) The adaptive test score cannot be a result of:

   1. (a) An unrelated mental illness or other psychiatric condition occurring at any age; or
   2. (b) Another illness or injury occurring after age 18.

3. (3) If you are dually diagnosed with a qualifying condition and mental illness, other psychiatric condition, or other illness or injury, you must provide acceptable documentation that your adaptive functioning, measured by an adaptive skills test, would meet the requirements for DDA eligibility without the influence of the mental illness, other psychiatric condition, or other illness or injury.

   1. (a) "Acceptable documentation" means written reports or statements that are directly related to adaptive functioning, reasonable considering the evidence, and from a qualified professional. The determination of whether a document is acceptable is made by DDA.
   2. (b) If no documentation is provided or DDA determines that the documentation is not acceptable DDA may deny eligibility. The determination can be challenged through an administrative appeal.

[Statutory Authority: RCW 71A.10.020, 71A.16.020, and 74.08.090. WSR 24-18-040, s 388-823-0740, filed 8/27/24, effective 10/7/24. Statutory Authority: RCW 71A.12.030, 71A.12.120 and 74.08.090. WSR 14-12-046, § 388-823-0740, filed 5/29/14, effective 7/1/14.]