# Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for the Polar Bear (Ursus maritimus) in the United States
> **US Fish and Wildlife Service** · Final rule. · Published 2010-12-07 · Effective 2011-01-06 · 75 FR 76086
## Document
- **Document number:** 2010-29925
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **Federal Register citation:** 75 FR 76086
- **CFR reference:** 50 CFR 17
- **Publication date:** 2010-12-07
- **Effective date:** 2011-01-06
- **Interior docket:** Docket No. FWS-R7-ES-2009-0042
## Abstract

We, the U.S. Fish and Wildlife Service (Service), designate critical habitat for polar bear (Ursus maritimus) populations in the United States under the Endangered Species Act of 1973, as amended (Act). In total, approximately 484,734 square kilometers (km\2\) (187,157 square miles (mi\2\)) fall within the boundaries of the critical habitat designation. The critical habitat is located in Alaska and adjacent territorial and U.S. waters.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/12/07/2010-29925/endangered-and-threatened-wildlife-and-plants-designation-of-critical-habitat-for-the-polar-bear)
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