Glossary

The words this site uses, in plain terms. The same words explain themselves on every page when you point at them or tap them.

Endangered Species Act
The federal law from 1973 that protects listed animals and plants.
petition
A written request, from anyone, asking the agency to list or delist a species.
90-day finding
The agency's first answer to a petition, saying whether it is worth a full review.
12-month finding
The agency's answer after a full review: should the species be listed or not?
annual re-finding
The yearly check on a species found warranted but precluded.
warranted but precluded
Listing is justified, but work on other species comes first. The agency checks again each year.
proposed rule
A draft decision. It is published so anyone can comment before it becomes final.
final rule
The decision that puts a listing or a habitat rule into effect.
endangered
In danger of dying out in all or much of the places where it lives.
threatened
Likely to become endangered soon.
candidate
A species that should be listed, but must wait while other work comes first.
critical habitat
Places the agency marks as needed for the species to recover.
comment period
The weeks when anyone can send the agency their view on a proposal.
docket
The public online folder that holds a rule's papers and comments.
statutory date
The date the law sets for a step.
Federal Register
The U.S. government's daily paper of rules and notices.
National Listing Workplan
The agency's public plan of listing work, year by year.
fiscal year
The federal budget year. It runs from October 1 to September 30.
court-ordered date
A date for a step set by a court, as the workplan lists it.
six-month extension notice
A notice that moves a final decision back by up to six months when the science is in real doubt.