Ill. Admin. Code tit. 86, § 105.120
b) When requested, Forms IL-8453 and attachments for accepted electronic IL-1040 returns must be mailed to:
| Regular Mail | or | Overnight Mail |
| Illinois Dept. of Revenue | Illinois Dept. of Revenue | |
| Exception Processing Division | Exceptions Processing | |
| P.O. Box 19479 | Division Mail Code 2-221 | |
| Springfield IL 62794-9479 | 101 W. Jefferson St. | |
| Springfield IL 62702 |
(Source: Amended at 24 Ill. Reg. 6582, effective April 10, 2000)