Wash. Rev. Code § 77.32.237
The commission shall enhance the fish, shellfish, and wildlife-related recreational opportunities for a person with a disability. The commission shall authorize the director to grant a disability designation to a person with a disability who meets eligibility criteria established by the commission by rule. The commission shall adopt rules defining who is a person with a disability for purposes of eligibility for disability designation. A person granted a disability designation is eligible for reasonable accommodations, determined by the director, to allow the person to participate in fish, shellfish, and wildlife-related recreational activities. The commission shall adopt rules governing the conduct of a person with a disability participating in fish, shellfish, and wildlife-related recreational activities and the conduct of companions permitted, as a reasonable accommodation, to assist such a person in fish, shellfish, and wildlife-related recreational opportunities.
RCW 77.32.237