RCW 49.60.200

It is an unfair practice for any employment agency to fail or refuse to classify properly or refer for employment, or otherwise to discriminate against, an individual 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, or to print or circulate, or cause to be printed or circulated any statement, advertisement, or publication, or to use any form of application for employment, or to make any inquiry in connection with prospective employment, which expresses any limitation, specification or discrimination as to age, sex, race, sexual orientation, creed, color, or 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, or any intent to make any such limitation, specification, or discrimination, unless based upon a bona fide occupational qualification: PROVIDED, Nothing contained herein shall prohibit advertising in a foreign language.