Action timeline

September 28, 2010 – The Center for Biological Diversity and the Environmental Protection Information Center filed a scientific petition to protect the Humboldt marten as a threatened or endangered species under the Endangered Species Act.

January 11, 2012 – The U.S. Fish and Wildlife Service announced that the Humboldt marten would be reviewed for protection under the Endangered Species Act. 

April 25, 2012 –  After the Service missed its deadline to make its next listing determination, the Center filed a formal notice of intent to sue.