35 Ill. Adm. Code 1740.80
Confidentiality
Section 1740.80 Confidentiality
Material submitted in the application may be subject to
disclosure in response to requests received under provisions of the Freedom of
Information Act [5 ILCS 140]. Information that could reasonably be considered
to be proprietary, privileged or confidential commercial or financial
information must be identified as such in the application. The Department will
maintain the confidentiality of that information to the extent permitted by
law.