Mo. Rev. Stat. § 301.3121: Spouse of military members may be issued special license plates, procedure.

1. Notwithstanding the provisions of any other section to the contrary, any surviving spouse who was married to an individual who would have been eligible to own any of the various special military license plates provided for in section 301.448, and who has not remarried, shall be allowed to obtain such special license plates. The surviving spouse shall make application, provide necessary documentation of the individual's military service, and pay such fees as are otherwise required by section 301.448, for issuance of the special military plates. Such plates must be renewed as otherwise required by law. The surviving spouse may renew such plates unless such spouse remarries. License plates issued pursuant to this section shall not be transferable to any other person.

2. The director of the department of revenue shall have the authority to promulgate any rules and regulations necessary for the administration of this section. No rule or portion of a rule promulgated pursuant to the authority of this section shall become effective unless it has been promulgated pursuant to chapter 536.