Establishes the Washington state protection of the free exercise of religious beliefs and rights of conscience regarding marriage as the union of one man and one woman act.

Provides that an individual or entity has the constitutionally and statutorily recognized and protected right to choose whether or not to provide services or goods related to the solemnization or celebration of marriage if the marriage is contrary to the individual's or entity owner's sincerely held religious belief, philosophical tenet, matter of conscience, or practice regarding the institution of marriage as the union of one man and one woman.

Prohibits the state from taking discriminatory action against those persons or entities.