| Week 28 |
| Monday. 06 July, 2026 | |
| 8:30 am |
CSI-MS4 Kentucky and Tennessee (ET)Online Webinar |
| 10:00 am |
CSI – Construction Pacific/West Coast (PT)Online Webinar |
| Wednesday. 08 July, 2026 | |
| 10:30 am |
CSI MS4 Re-CertificationOnline Webinar |
| Thursday. 09 July, 2026 | |
| 8:30 am |
CSI-MS4 New England (ET)Online Webinar |
| 10:00 am |
CACEO - Illicit Discharge Detection and Elimination (PDT)Online Webinar |