115.355. Declarations of candidacy to be filed in person by candidate, exceptions.
1. Except as provided in subsections 2 and 5 of this section and in section 115.377, each declaration of candidacy for nomination in a primary election shall be filed by the candidate in person in the office of the appropriate election official.
2. A candidate may file his declaration of candidacy by certified mail if he is:
(1) Unable to appear in person because of physical disability, and the declaration is accompanied by a sworn statement of a licensed physician so stating; or
(2) A member of the Armed Forces of the United States on active duty, and the declaration is accompanied by a sworn statement of the candidate's commanding officer so stating.
3. Except as provided in section 115.377, no election official shall accept for filing any declaration of candidacy for nomination in a primary election not presented to him by the candidate in person or which, if sent by certified mail pursuant to subsection 2 of this section, is not accompanied by the statement required in the same subsection.
4. Election officials shall require proof of identity of persons when filing declarations of candidacy in person and when filing by mail as provided in subsection 2 or 5 of this section.
5. Any judge seeking retention under sections 25(a) to 25(g) of article V of the Missouri Constitution may file his declaration of candidacy for election to succeed himself by certified mail.