Mo. Rev. Stat. § 385.312: Termination, notice required.

As applicable, an insurer that issued a reimbursement insurance policy shall not terminate or nonrenew the policy until a notice of termination has been mailed or delivered to the director. The termination or nonrenewal of a reimbursement insurance policy shall not reduce the issuer's responsibility for service contracts issued by providers prior to the date of the termination.