Core Missouri Statutes

• RSMo §379.203 — mandatory uninsured-motorist coverage.
• RSMo Chapter 303 — motor-vehicle financial responsibility.
• RSMo §379.1925 — motor-vehicle liability exclusions effective January 1, 2026.
• Missouri follows pure comparative fault in negligence actions.

Leading Missouri Decisions

• Cameron Mutual Insurance Co. v. Madden (Mo. 1976) — uninsured-motorist stacking and the public policy of §379.203.

Missouri’s Department of Commerce and Insurance confirms that uninsured-motorist coverage is mandatory and that Missouri applies pure comparative fault. Review current statutes, later appellate cases, policy forms and any 2026 statutory changes affecting shared or business-use vehicles.

Publication review note — September 17, 2026. Confirm subsequent history, statutory amendments, effective dates and current policy language before reliance.