Section 1050.25  Criteria Used For Listing

a)         A species shall be included on the Official List when one or more of the following criteria exists:

1)         Species included in the Federal list of Endangered or Threatened species.

2)         Species proposed for Federal Endangered or Threatened status which occur in Illinois.

3)         Species which formerly were widespread in Illinois but have been nearly extirpated from the State due to habitat destruction, collecting, or other pressures resulting from the development of Illinois.

4)         Species which exhibit very restricted geographic ranges of which Illinois is a part.

5)         Species which exhibit restricted habitats or low populations in Illinois.

6)         Species which are significant disjuncts in Illinois, i.e., the Illinois population is far removed from the rest of the species' range.

b)         A species will be removed from the Official List if it no longer fulfills one or more of the criteria in subsection (a), except for a species that no longer fulfills the criteria because it no longer grows in Illinois.  The determination will be made pursuant to Section 7 of the Endangered Species Protection Act [520 ILCS 10/7].

(Source:  Amended at 22 Ill. Reg. 21902, effective December 3, 1998)