Rules & Laws

The Developmental Disabilities Administration operates according to the statutes established in the Revised Code of Washington, as interpreted by Washington Administrative Code.

Revised Code of Washington

The (RCW) are the statutes enacted and amended by the Legislature. The developmental disabilities statute is Chapter 71A RCW.

Washington State Administrative Code

State agencies adopt rules (also known as regulations) called Washington Administrative Code (WAC) to implement state and federal law. A regulation is an agency interpretation of a statute. Regulations are meant to clarify the law for the agency and the public and have the effect of law.



  • WAC 388-71: Home and community services and programs
  • WAC 388-101: Revisions were made to Chapter 388-101 effective August 1, 2016 
    • WAC 388-101: Certified community residential services and supports
    • WAC 388-101D: Requirements for providers of residential services and supports
  • WAC 388-106: Comprehensive Assessment Reporting Evaluation (CARE) Tool
  • WAC 388-114:  Travel Time and Work Week Limitations for Individual Providers
  • WAC 388-823: DDA Intake and Eligibility Determination
  • WAC 388-823, 825, 828, 831, 845:  Individual and Family Services (IFS) Waiver, the Community First Choice (CFC) program, DDA Assessment and Reassessment is Administered, and Overnight Planned Respite Services (Effective September 4, 2016) 
  • WAC 388-825: Developmental disabilities administration service rules
  • WAC 388-826: Voluntary placement program
  • WAC 388-827: State supplementary payment (SSP)
    • WAC 388-827: State supplementary payment (SSP) (Effective July 13, 2017)
  • WAC 388-828: Developmental Disabilities Administration assessment
    • WAC 388-828-1520: Where is the DDA assessment and reassessment administered? (Effective June 26, 2017)
  • WAC 388-829:  Community Residential Service Business Training Requirements
  • WAC 388-829A:  Alternative Living
  • WAC 388-829C:  Companion Homes
  • WAC 388-829R, 845:  Overnight Planned Respite Services (Effective September 4, 2016)    
  • WAC 388-831: Community protection program
  • WAC 388-832: Individual and family services program
  • WAC 388-833:  Community Crisis Stabilization Service Program
  • WAC 388-834:  Preadmission Screening and Resident Review (PASRR)
  • WAC 388-835: ICF/ID program and reimbursement system
  • WAC 388-837: Residential habilitation center ICF/ID program
  • WAC 388-840: Work programs for residents of residential habilitation centers in DDD
  • WAC 388-845: DDA home and community based services waivers
  • WAC 388-850: County plan for developmental disabilities 

DDA Policy Question?

If you have a question about a policy, form, or document, please email