# Endangered and Threatened Wildlife and Plants; Threatened Species Status With Section 4(d) Rule for Sickle Darter
> **US Fish and Wildlife Service** · Final rule. · Published 2022-11-08 · Effective 2022-12-08 · 87 FR 67380
## Document
- **Document number:** 2022-23618
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **Federal Register citation:** 87 FR 67380
- **CFR reference:** 50 CFR 17
- **Publication date:** 2022-11-08
- **Effective date:** 2022-12-08
- **Interior docket:** Docket No. FWS-R4-ES-2020-0094
## Abstract

We, the U.S. Fish and Wildlife Service (Service), determine threatened status under the Endangered Species Act of 1973 (Act), as amended, for the sickle darter (Percina williamsi), a fish species from the upper Tennessee River drainage in North Carolina, Tennessee, and Virginia. This rule adds the species to the List of Endangered and Threatened Wildlife. We also finalize a rule under the authority of section 4(d) of the Act that provides measures that are necessary and advisable to provide for the conservation of the sickle darter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/11/08/2022-23618/endangered-and-threatened-wildlife-and-plants-threatened-species-status-with-section-4d-rule-for)
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