Neb. Rev. Stat. § 48-1004

(1) It shall be an unlawful employment practice for an employer: (a) To refuse to hire, to discharge, or otherwise to discriminate against any individual with respect to the employee's terms, conditions, or privileges of employment, otherwise lawful, because of such individual's age, when the reasonable demands of the position do not require such an age distinction; or (b) To willfully utilize in the hiring or recruitment of individuals for employment otherwise lawful, any employment agency, placement service, training school or center, labor organization, or any other source which so discriminates against individuals because of their age. (2) It shall be an unlawful employment practice for any labor organization to so discriminate against any individual or to limit, segregate, or classify its membership in any way which would deprive or tend to deprive an individual of otherwise lawful employment opportunities, or would limit such employment opportunities or otherwise adversely affect his or her status as an employee or would affect adversely his or her wages, hours, or employment. (3) It shall be an unlawful employment practice for an employment agency to fail or refuse to refer for employment or otherwise to discriminate against any individual because of such individual's age or to classify or refer for employment any individual on the basis of his or her age. (4) It shall be an unlawful employment practice for any employer, employment agency, or labor organization to discharge, expel, or otherwise discriminate against any person because he or she opposed any unlawful employment practice specified in the Age Discrimination in Employment Act or has filed a charge or suit, testified, participated, or assisted in any proceeding under the act.