Ill. Admin. Code tit. 35, § 251.301
b) All requests for reconsideration shall be in writing and shall include all pertinent facts and arguments in support of the request. Such requests shall be addressed to:
P. O. Box 19276
Springfield, Illinois 62794-9276
Illinois Environmental Protection Agency
Bureau of Air, Permit Section
Attention: Records Unit
(Source: Amended at 34 Ill. Reg. 19007, effective November 22, 2010)