The Endangered Species Act (ESA) defines "threatened species" as "any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range." 16 U.S. C.§ 1532(20). This memorandum is intended to provide prospective guidance as to how the Secretary can best explain how a determination under section 4(a)(1) addresses the concept of the foreseeable future.
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Guidance
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