Mo. Rev. Stat. § 448.1-111: Severability.

If any provision of sections 448.1-101 to 448.4-120 or the application thereof to any person or circumstances is held invalid, the invalidity does not affect other provisions or applications of sections 448.1-101 to 448.4-120 which can be given effect without the invalid provisions or application, and to this end the provisions of sections 448.1-101 to 448.4-120 are severable.