Email Us

info@npdes.com

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST

Classes

Register Here

Email Us

info@npdes.com

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST

Classes

Register Here

Email Us

info@npdes.com

 


Class Registration Calendar

20
Oct
2025

CSI-MS4 Arkansas/Oklahoma (CT)

10-20-2025 8:30 am - 10-21-2025 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

20
Oct
2025

CSI-MS4 Louisiana/Texas (CT)

10-20-2025 8:30 am - 10-21-2025 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

22
Oct
2025

CSI Industrial Re-Certification (ET)

10-22-2025 10:30 am -4:30 pm
Online Webinar
$299 + registration
23
Oct
2025

Florida Stormwater Erosion and Sediment Control Inspector

10-23-2025 8:30 am - 10-24-2025 4:00 pm
Online Webinar
$225 + registration
Florida Stormwater Erosion and Sediment Control Inspector

We are no longer accepting registration for this event

23
Oct
2025

CSI-MS4 New Jersey (ET)

10-23-2025 8:30 am - 10-24-2025 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

23
Oct
2025

CSI-MS4 New York (ET)

10-23-2025 8:30 am - 10-24-2025 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

27
Oct
2025

CSI-MS4 Arizona/Colorado(MT)

10-27-2025 8:30 am - 10-28-2025 4:30 pm
Online Webinar
$799 + registration
27
Oct
2025

CSI-MS4 Nevada/Wyoming (MT)

10-27-2025 8:30 am - 10-28-2025 4:30 pm
Online Webinar
$799 + registration
29
Oct
2025

CSI-Industrial West Coast Online (PT)

10-29-2025 8:00 am -4:00 pm
Online Webinar
$399 + registration
30
Oct
2025

CSI-MS4 Kansas/Missouri (CT)

10-30-2025 8:30 am - 10-31-2025 4:30 pm
Online Webinar
$799 + registration