Missouri Revised Statutes Title XIX. Motor Vehicles, Watercraft and Aviation § 303.022. Applicability of certain state statutes to motor vehicle liability policies, when

Sections 105.1073, 303.020, 303.030, 303.120, 303.190, and 303.240 shall apply to motor vehicle liability policies, as defined in section 303.190, that are issued or renewed in Missouri on or after July 1, 2019, and to any applicable filing under section 303.240 or subdivision  1 (2), (3), or (4) of subsection 1 of section 303.160 that goes into effect on or after July 1, 2019. A motor vehicle liability policy in effect prior to July 1, 2019, shall continue to constitute proof of compliance with the provisions of this chapter for the remainder of the term of that policy.