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  1. Illinois DNR
  2. Endangered Species Protection Board
  3. The List Review and Revision Process and the 2014 Review and Revision

The List Review and Revision Process and the 2014 Review and Revision 

Under the Endangered Species Protection Act, the Board is responsible for maintaining the Illinois List of Endangered and Threatened Species (Illinois List/List).  The Illinois List is reviewed, and revised as necessary, but in no case less often than every five years.  The first Illinois List was published in 1981.  Since then, there have been six 5-year reviews and revisions of the entire List, as well as some administrative and editorial revisions, resulting in the current (2011) Illinois List of 484 endangered and threatened species.  The Board is currently conducting a 5-year review of the List, which is anticipated to conclude in 2014.

By law, changes to the list must be based on scientific evidence.  Factors that are considered when evaluating a species include changes in population size, changes in range in the state, whether it occurs at protected sites, any known threats to its existence, as well as features of its life history which might have a bearing on survival.  During the 5-year review, the Board seeks input from technical advisors who have expertise in plants, invertebrate animals, fishes, reptiles, amphibians, birds, and mammals.  Since the first List was developed, 132 technical experts have assisted the Board, developing the 2014 List revision will bring the total to 146.  The Board may remove from the Illinois List any non-federally-listed species for which it finds satisfactory scientific evidence that its wild or natural populations are no longer endangered or threatened in Illinois.  A public hearing is held to consider the Board’s action of listing, delisting, or changing the listing status of a species. 

Please refer to the links below for more information about the Illinois List and the Illinois List review and revision process.


The following Board publication includes a review of the history of the Illinois List of Endangered and Threatened Species:  The Illinois Endangered Species Protection Act at Forty: a Review of the Act’s Provisions and the Illinois List of Endangered and Threatened Species. 


The Board's authority to make changes to the Illinois List, definitions of "Endangered" and "Threatened", and criteria
for lisitng and delisting species.

A walk-through of the required 5-year review and revision of the Illinois List of Endangered and Threatened Species.

How to participate in the List review process or make recommendation to the Board for changes to the Illinois List.

ESPB 2014 llinois List review and revision - our process and schedule to date and planned.