Okla. Stat. tit. 25, § 25-1306: Other discriminatory practices

It is a discriminatory practice for an employer, labor

organization, or employment agency to print or publish or cause to

be printed or published a notice or advertisement relating to

employment by the employer or membership in or a classification or

referral for employment by the labor organization, or relating to a

classification or referral for employment by the employment agency,

indicating a preference, limitation, specification, or

discrimination, based on race, color, religion, sex, national

origin, age, genetic information or disability, unless the employer,

organization or agency can demonstrate that accommodation for the

disability would impose an undue hardship on the operation of the

business of such employer, organization or agency; but a notice or

advertisement may indicate a preference, limitation, specification,

or discrimination based on religion, sex, or national origin when

religion, sex, or national origin is a bona fide occupational

qualification for employment.