ESA 4(b)(2) exclusions

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Category: Project

Description: A brief memo of critical habitat exclusions under section 4(b)(2) of the ESA.

License: CC-By Attribution 4.0 International


Areas can be excluded from critical habitat (CH) designations for economic, national security, or other relevant reasons under ยง4(b)(2) of the U.S. Endangered Species Act (ESA). We are aware of no analyses that quantify the rates or patterns of use. To address this gap, we undertook a small descriptive study of CH 4(b)(2) exclusions. Less than half of designations in our sample had exclusions, mos...


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