Species managed by the U.S. FWS pursuant to its responsibilities under the Endangered Species Act. The service includes listing, taxonomy, and related Federal Register publication information.

When a Federal agency determines, through a biological assessment or other review, that its action is likely to adversely affect a listed species, the agency submits to the Service a request for formal consultation. During formal consultation, the Service and the agency share information about the proposed project and the species likely to be affected. Formal consultation may last up to 90 days, after which the Service will prepare a biological opinion on whether the proposed activity will jeopardize the continued existence of a listed species. The Service has 45 days after completion of formal consultation to write the opinion.

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Minimal data service of species of conservation concern to the U.S. FWS related to its responsibilities under the Endangered Species Act. The service includes minimal listing and taxonomy attributes.

The IPaC Location API enables external applications to create and request data from IPaC projects through a REST-ful interface. The returned data includes information about ESA Threatened & Endangered Species, Migratory Birds, and sensitive wetlands in the given location.