Mo. Rev. Stat. § 115.327

115.327. Declaration for nomination of independent candidate or formation of new party when required, form, content. — When submitted for filing, each petition for the nomination of an independent candidate or for the formation of a new political party shall be accompanied by a declaration of candidacy for each candidate to be nominated by the petition or by the party, respectively. The party's duly authorized chairman and treasurer shall also submit a certified complete list of the names and addresses of all their candidates and the office for which each seeks. The party shall nominate its candidates in the manner prescribed in the party's bylaws. If presidential electors are to be nominated, at least one qualified resident of each congressional district shall be named as a nominee for presidential elector. The number of candidates to be nominated shall equal the number of electors to which the state is entitled. Each declaration of candidacy for the office of presidential elector shall be in the form provided in section 115.399 . Each declaration of candidacy for an office other than presidential elector shall state the candidate's full name, residence address, office for which he proposes to be a candidate, the party, if any, upon whose ticket he is to be a candidate and that if nominated and elected he will qualify. Each such declaration shall be in substantially the following form:

Each such declaration shall be subscribed and sworn to by the candidate before the election official accepting the candidate's petition, a notary public or other officer authorized by law to administer oaths.

(L. 1977 H.B. 101 § 10.055, A.L. 1993 S.B. 31, A.L. 2012 H.B. 1236)