"Any person may review the proposed plan, to the extent allowed by applicable laws and regulations, by contacting the Illinois Environmental Protection Agency. Any person may submit comments to the Illinois Environmental Protection Agency and request a hearing. Comments and requests for hearing must be submitted in writing to Illinois EPA at:
Public Information for the Bureau of Air
Illinois Environmental Protection Agency
P. O. Box 19276
Springfield, Illinois 62794
These comments and requests for a hearing must be received by the Illinois EPA within 21 days after the date of publication."
Ill. Admin. Code tit. 35, § 207.604