29 C.F.R. § 1606.5 Citizenship requirements.
Title 29 - Labor
(a) In those circumstances, where citizenship requirements have the purpose or effect of discriminating against an individual on the basis of national origin, they are prohibited by title VII.2 2 See Espinoza v. Farah Mfg. Co., Inc., 414 U.S. 86, 92 (1973). See also, E.O. 11935, 5 CFR 7.4; and 31 U.S.C. 699(b), for citizenship requirements in certain Federal employment. (b) Some State laws prohibit the employment of non-citizens. Where these laws are in conflict with title VII, they are superseded under section 708 of the title.
Title 29: Labor
PART 1606—GUIDELINES ON DISCRIMINATION BECAUSE OF NATIONAL ORIGIN
§ 1606.5 Citizenship requirements.