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
 


Class Registration Calendar

06
Oct
2025

CSI-MS4 Illinois/Wisconsin (CT)

10-06-2025 8:30 am - 10-07-2025 4:30 pm
Online Webinar
$799 + registration
06
Oct
2025

CSI-MS4 Ohio (ET)

10-06-2025 8:30 am - 10-07-2025 4:30 pm
Online Webinar
$799 + registration
09
Oct
2025

Florida Stormwater Erosion and Sediment Control Inspector

10-09-2025 8:30 am - 10-10-2025 4:00 pm
Online Webinar
$225 + registration
Florida Stormwater Erosion and Sediment Control Inspector
14
Oct
2025

CSI – Construction West Coast (PT)

10-14-2025 8:00 am - 10-15-2025 2:00 pm
Online Webinar
$599 + registration
15
Oct
2025

CSI Network October (EDT)

10-15-2025 1:00 pm -2:30 pm
Online Webinar
16
Oct
2025

CSI-MS4 Florida/Georgia (ET)

10-16-2025 8:30 am - 10-17-2025 4:30 pm
Online Webinar
$799 + registration
16
Oct
2025

CSI-MS4 Puerto Rico (ET)

10-16-2025 8:30 am - 10-17-2025 4:30 pm
Online Webinar
$799 + registration
20
Oct
2025

CSI-MS4 Arkansas/Oklahoma (CT)

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

CSI-MS4 Louisiana/Texas (CT)

10-20-2025 8:30 am - 10-21-2025 4:30 pm
Online Webinar
$799 + registration
22
Oct
2025

CSI Industrial Re-Certification (CT)

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