SDCL § 33-4-2: Citizenship and qualifications--Previous expulsion from service.

Any commissioned officer of the National Guard shall be a citizen of the United States and be either a qualified resident of this state or a nonresident who is accepted into service of the South Dakota National Guard. Any commissioned officer shall further meet the qualifications prescribed by federal law and the regulations of the Department of Defense. No person who has been expelled from or has received a less than honorable discharge from any branch of the armed forces of the United States or from any military organization of any state may be commissioned.