# Medicare Program; Medicare Secondary Payer (MSP) Amendments
> **Centers for Medicare and Medicaid Services** · Final rule. · Published 2008-02-22 · Effective 2008-03-24 · 73 FR 9679
## Document
- **Document number:** E8-2938
- **Category:** medicare
- **Sub-agency:** Centers for Medicare and Medicaid Services
- **Federal Register citation:** 73 FR 9679
- **CFR reference:** 42 CFR 411
- **Publication date:** 2008-02-22
- **Effective date:** 2008-03-24
- **HHS docket:** CMS-6272-F
## Abstract

On February 24, 2006, we published an interim final rule with comment period in the Federal Register that implemented amendments to the Medicare Secondary Payer (MSP) provisions under Title III of the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA). The MMA clarified the MSP provisions regarding the obligations of primary plans and primary payers, the nature of the insurance arrangements subject to the MSP rules, the circumstances under which Medicare may make conditional payments, and the obligations of primary payers to reimburse Medicare. In this final rule, we are finalizing several clarifications made to the MSP provisions. In addition, we are responding to public comments on the February 24, 2006 interim final rule with comment period that pertain to these MSP provisions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/02/22/E8-2938/medicare-program-medicare-secondary-payer-msp-amendments)
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