The North Dakota Human Rights Act prohibits employment discrimination on the basis of race, color, religion, sex, national origin, age, physical or mental disability, status with respect to marriage or public assistance, or participation in lawful activity off the employer's premises during nonworking hours. The definition of sex includes pregnancy, childbirth, and disabilities related to pregnancy or childbirth. The Act covers all employers (ND Cent. Code Sec. 14-02.4-01et seq.).