# Radiation Oncology (RO) Model
> **Centers for Medicare and Medicaid Services** · Final rule. · Published 2022-08-29 · Effective 2022-10-28 · 87 FR 52698
## Document
- **Document number:** 2022-18541
- **Category:** other
- **Sub-agency:** Centers for Medicare and Medicaid Services
- **Federal Register citation:** 87 FR 52698
- **CFR reference:** 42 CFR 512
- **Publication date:** 2022-08-29
- **Effective date:** 2022-10-28
- **HHS docket:** CMS-5527-F2
## Abstract

We are finalizing our proposal to delay the current start date of the RO Model to a date to be determined through future rulemaking, and to modify the definition of the model performance period to provide that the start and end dates of the model performance period for the RO Model will be established in future rulemaking.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/08/29/2022-18541/radiation-oncology-ro-model)
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