Ill. Admin. Code tit. 2, § 826.310
a) By mail to the following address:
Illinois Department of Natural Resources
Attn: Freedom of Information Officer
One Natural Resources Way
Springfield IL 62702-1271
b) By e-mail or online to:
DNR.FOIA@illinois.gov
c) By Fax to:
Attn: Freedom of Information Officer – 217/785-2438
Requests for public records shall be submitted to the Freedom of Information Officer of the Illinois Department of Natural Resources by one of the following methods: