Washington Revised Code Title 18. Businesses and Professions § 18.34.080. Examination--Issuance and display of license

The examination shall determine whether the applicant has a thorough knowledge of the principles governing the practice of a dispensing optician which is hereby declared necessary for the protection of the public health. The examining committee may approve an examination prepared or administered by a private testing agency or association of licensing authorities. The secretary shall license successful examinees and the license shall be conspicuously displayed in the place of business of the licensee.