| Cargill, Inc - Eddyville | 23-061 | 06/19/2023 | Prevention of Significance Deterioration (PSD) |
| Cargill, Inc - Eddyville | 22-434 | 06/19/2023 | Prevention of Significance Deterioration (PSD) |
| Grain Processing Corporation | 23-023 | 07/01/2023 | State Implementation Plan (SIP) |
| Grain Processing Corporation | 23-088 | 07/01/2023 | State Implementation Plan (SIP) |
| Continental Cement Company - Davenport Plant | 23-095 | 06/20/2023 | State Implementation Plan (SIP) |
| Continental Cement Company - Davenport Plant | 23-098 | 06/20/2023 | Prevention of Significance Deterioration (PSD) |
| Southwest Iowa Renewable Energy, LLC | 22-372 | 05/07/2023 | Prevention of Significance Deterioration (PSD) |
| Platinum Crush, LLC | 23-038 | 06/17/2023 | Prevention of Significance Deterioration (PSD) |