35 Ill. Adm. Code 130.104
Definitions and Severability
Section 130
Section 130.104Â Definitions
and Severability
a)        Definitions. For the purpose of this Part, "State
agency" refers to the Board, the  Agency, or DNR. Other words and terms
have the meanings set forth in 35 Ill. Adm. Code 101.Subpart B, unless
otherwise provided or unless the context clearly indicates otherwise.
b)        Severability. If any provision of this Part or its
application to any person is adjudged invalid, the adjudication does not affect
the validity of this Part as a whole or of any portion not adjudged invalid.