Mississippi Code
Qualification of Electors
§ 23-15-15. Documentation required of naturalized citizens

It shall be the duty of any person who has acquired citizenship by order or decree of naturalization and who is otherwise qualified to register and vote under the laws of the State of Mississippi to present or exhibit to the registrar of the county of his or her residence, at or before the time he or she may offer to register, a certified copy of the final order or decree of naturalization, or a certificate of naturalization or duplicate thereof, or a certified copy of such certificate of naturalization or duplicate; otherwise he or she shall not be allowed to register or to vote.