# Possession, Use, and Transfer of Select Agents and Toxins-Addition of SARS-CoV/SARS-CoV-2 Chimeric Viruses Resulting From Any Deliberate Manipulation of SARS-CoV-2 To Incorporate Nucleic Acids Coding for SARS-CoV Virulence Factors to the HHS List of Select Agents and Toxins
> **Centers for Disease Control and Prevention** · Final rule. · Published 2023-03-03 · Effective 2023-03-03 · 88 FR 13322
## Document
- **Document number:** 2023-04323
- **Category:** public-health
- **Sub-agency:** Centers for Disease Control and Prevention
- **Federal Register citation:** 88 FR 13322
- **CFR reference:** 42 CFR 73
- **Publication date:** 2023-03-03
- **Effective date:** 2023-03-03
- **HHS docket:** Docket No. CDC-2021-0119
## Abstract

The Centers for Disease Control and Prevention (CDC) located within the Department of Health and Human Services (HHS) has amended the select agents and toxins regulations to add SARS-CoV/SARS-CoV-2 chimeric viruses resulting from any deliberate manipulation of SARS- CoV-2 to incorporate nucleic acids coding for SARS-CoV virulence factors to the list of HHS select agents and toxins. With this final rule, regulated entities are required to obtain prior approval from CDC to conduct deliberate manipulation of SARS-CoV-2 to incorporate nucleic acids coding for SARS-CoV virulence factors because these chimeric viruses have the potential to pose a severe threat to public health and safety.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/03/03/2023-04323/possession-use-and-transfer-of-select-agents-and-toxins-addition-of-sars-covsars-cov-2-chimeric)
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