The Department of Natural Resources amended 17 Ill. Admin. Code 1010, Illinois List of Endangered and Threatened Fauna. Changes add language to state that species or subspecies designated as federally endangered or threatened are included on the list and add the Northern Riffleshell to the list as a result of the department's reintroduction of the species into two Illinois streams. The change took effect February 22, 2011. http://www.cyberdriveillinois.com/departments/index/register/register_volume35_issue11.pdf pp. 4196-212.