The Michigan Department of Treasury has been made aware that some "Reminder of Tax Due" letters sent to taxpayers contain an incorrect toll-free (1-800) TTY number, which may connect callers to a potential scam. Taxpayers with questions regarding unpaid individual income taxes are asked to contact the Treasury directly at 517-636-4486. We apologize for any confusion or concern this may have caused.
Air Pollution Control Exemption - Certificate Activity
| STC Meeting Date | New Certificates | Amendments | Denials and Dismissals |
| Monday, May 12, 2025 | Certificate (5/12/25) | None | None |
| Tuesday, November 18, 2025 | Certificates (11/18/25) | None | Denials (11/18/25) |