In the Orphan Drug Act of 1983, the United States Congress defined a rare disease as any condition that affects fewer than 200,000 people in the nation.  Rare diseases include genetic conditions, infections, some rare cancers, and autoimmune diseases.  The National Institutes of Health estimates there may be as many as 7000 rare diseases, and collectively, about 30 million people in the United States have a rare disease.

An advisory council on rare diseases (council) is established within Department of Health to advise on research, diagnosis, treatment, and education related to rare diseases and must submit annual reports on the status of the council's work and other findings and recommendations to the Governor and Legislature beginning December 1, 2026.
 
"Rare disease" means a disease that affects fewer than 200,000 people in the United States.
 
Members of the Advisory Council on Rare Diseases.  The council acting as the advisory body on rare diseases consists of 12 voting members serving three year-terms including four clinicians and researchers specializing in rare diseases; four individuals representing patients; the Children and Youth with Special Health Care Needs program director; a representative from the Health Care Authority; and two representatives from the life sciences industry focusing on developing therapeutic products for rare disease patients, research efforts related to those endeavors, or have a demonstrable understanding of the path to commercialization of such products.  A vacancy on the council must be filled in the same manner as the original appointment.  The Secretary of Health must serve as an ex-officio nonvoting member and select the council's chair, who must convene the first council's meeting no later than three months after the bill's effective date.
 
The four clinicians and researchers specializing in rare diseases must include a Washington State licensed physician with experience researching, diagnosing, or treating rare diseases; a registered nurse, advanced practice registered nurse, genetic counselor, or social worker licensed and practicing in Washington with experience treating rare diseases; a medical researcher with experience conducting research concerning rare diseases; and a representative from an academic research institution in Washington that receives any grant funding for rare disease research.  The four council members representing patients must include two patients living with a rare disease; a rare disease patient caregiver; and a representative from a rare disease foundation or patient advocacy group.
 
Duties of the Council.  The council's duties include identifying effective research-based strategies to help diagnose, treat, and prevent rare diseases; making recommendations on the implementation of a continued medical education program to provide clinicians with resources to support earlier diagnosis and treatment of rare diseases; and developing effective strategies to raise public awareness of rare diseases in the state.  The council must also coordinate efforts for the study of incidence prevalence of rare diseases in the state and the status of the rare disease community, including examination of issues regarding quality of care outcomes and cost effectiveness of earlier diagnoses and treatment of rare diseases and access to treatment and services available to persons with rare diseases in the state.
 
Public Repository of Information.  By July 1, 2026, the council must establish a centralized, publicly accessible repository of information that catalogs ongoing rare research in the state and provides best practice standards of care for health care providers containing the most effective strategies for recognizing and treating rare diseases and informational resources for rare disease patients seeking access to clinical care.