Endangered Species Act., which protects species federally, many states have their own versions of an endangered species law, upheld by state wildlife-management agencies.
In addition to the U.S. Endangered Species Act., which protects species federally, many states have their own versions of an endangered species law, upheld by state wildlife-management agencies. State listing works differently from federal listing, and state laws are often weaker than their federal counterpart. California, though, has a very strong Endangered Species Act, giving species certain interim protections as soon as listing is proposed.