# Most Favored Nation (MFN) Model
> **Centers for Medicare and Medicaid Services** · Interim final rule with comment period. · Published 2020-11-27 · Effective 2020-11-27 · 85 FR 76180
## Document
- **Document number:** 2020-26037
- **Category:** medicare
- **Sub-agency:** Centers for Medicare and Medicaid Services
- **Federal Register citation:** 85 FR 76180
- **CFR reference:** 42 CFR 513
- **Publication date:** 2020-11-27
- **Effective date:** 2020-11-27
- **HHS docket:** CMS-5528-IFC
## Abstract

This interim final rule with comment period (IFC) implements the Most Favored Nation (MFN) Model, a new Medicare payment model under section 1115A of the Social Security Act (the Act). The MFN Model will test whether more closely aligning payment for Medicare Part B drugs and biologicals (hereafter, referred to as "drugs") with international prices and removing incentives to use higher-cost drugs can control unsustainable growth in Medicare Part B spending without adversely affecting quality of care for beneficiaries.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/11/27/2020-26037/most-favored-nation-mfn-model)
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