N.D. Cent. Code § 14-02.4-08
Notwithstanding sections 14-02.4-03 through 14-02.4-06, it is not a discriminatory practice for an employer to fail or refuse to hire and employ an individual for a position, to discharge an individual from a position, or for an employment agency to fail or refuse to refer an individual for employment in a position, or for a labor organization to fail or refuse to refer an individual for employment, on the basis of religion, sex, national origin, physical or mental disability, or marital status in those circumstances where religion, sex, national origin, physical or mental disability, or marital status is a bona fide occupational qualification reasonably necessary to the normal operation of that particular business or enterprise; nor is it a discriminatory practice for an employer to fail or refuse to hire and employ an individual for a position, or to discharge an individual from a position on the basis of that individual's participation in a lawful activity that is off the employer's premises and that takes place during nonworking hours and which is not in direct conflict with the essential business-related interests of the employer, if that participation is contrary to a bona fide occupational qualification that reasonably and rationally relates to employment activities and the responsibilities of a particular employee or group of employees, rather than to all employees of that employer.
N.D.C.C. § 14-02.4-08