A pre-employment inquiry may ask "Male------, Female------"; or "Mr., Mrs., Miss", provided that the inquiry is made in good faith for a non-discriminatory purpose. Any pre-employment inquiry in connection with prospective employment which expresses directly or indirectly any limitation, specification, or discrimination as to sex shall be unlawful unless based upon a bona fide occupational qualification.
Okla. Admin. Code § 335:15-3-7