June 16, 2004 – The Center and allies submitted a petition to the U.S. Fish and Wildlife Service to list the Siskiyou Mountains and Scott Bar salamanders as threatened or endangered under the Endangered Species Act.
July 19, 2004 – The Service responded that it had reviewed the petition but because of inadequate funds, it would not be able to address the petition at that time.
2005 – The Center and allies sued the Service for its failure to respond to the petition.
July 6, 2006 – The Center filed suit.
January 19, 2007 – The court determined that the Service's 90-day finding was arbitrary and capricious and ordered the Service to make a new finding.
March 29, 2007 – The Service announced that listing might be warranted and initiated a status review.