Endangered Species Listing Handbook

Procedural guidance for the preparation and processing of rules and notices pursuant to the Endangered Species Act.

Publication date
Type of document
Guidance
Media Usage Rights/License
Public Domain
Program
A duck flies over a tundra pond.
We use the best scientific information available to determine whether to add a species to (list) or remove from (delist) the federal lists of endangered and threatened wildlife and plants. We also determine whether already listed species should be reclassified from threatened to endangered (uplist...