RCW 50A.05.100

Nothing in this title shall be construed to modify or affect any state or local law prohibiting discrimination on the basis of race, creed, religion, color, national origin, families with children, sex, marital status, sexual orientation including gender expression or identity, age, honorably discharged veteran or military status, or the presence of any sensory, mental, or physical disability or the use of a trained dog guide or service animal by a person with a disability.