The transition period shall begin on the fifteenth day of November following the election of a governor or lieutenant governor who is not an incumbent and shall end when that governor-elect or lieutenant governor-elect has taken the oath of office.
Mo. Rev. Stat. § 26.220
Governor and lieutenant governor transition period defined
Effective: 28 Aug 1977; (L. 1977 H.B. 493 & 458)
Official source: Missouri Revisor of Statutes. Reproduced from public-domain Missouri statutes; confirm against the official source for the current text. Not legal advice.