1999 – The Biodiversity Legal Foundation (later acquired by the Center) filed a lawsuit against the U.S. Fish and Wildlife Service to force the listing of 29 imperiled species, including the vermilion darter, under the Endangered Species Act.
November 28, 2001 – The Service listed the vermilion darter as endangered.
June 20, 2007 – The Service published a federal recovery plan for the vermilion darter.
December 19, 2007 – The Center sued to earn critical habitat for the vermilion darter.