RCW 49.60.190: Unfair practices of labor unions.

It is an unfair practice for any labor union or labor organization:

(1) To deny membership and full membership rights and privileges to any person because of age, sex, marital status, sexual orientation, race, creed, color, national origin, citizenship or immigration status, 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.

(2) To expel from membership any person because of age, sex, marital status, sexual orientation, race, creed, color, national origin, citizenship or immigration status, 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.

(3) To discriminate against any member, employer, employee, or other person to whom a duty of representation is owed because of age, sex, marital status, sexual orientation, race, creed, color, national origin, citizenship or immigration status, 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.