ARSD 20:06:13:53. Duplication of coverage prohibited

No Medicare supplement insurance policy, contract, or certificate may be issued or issued for delivery in this state which provides benefits which duplicate benefits provided by Medicare. An issuer may not issue a Medicare supplement policy or certificate to an individual enrolled in Medicare part C unless the effective date of the coverage is after the termination date of the individual's part C coverage. In addition, issuers must comply with the requirements of § 20:06:13:59 and this section by the annual filing of the form in Appendix B at the end of this chapter each March 1.