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

15
Oct
2026

CSI-MS4 New Jersey (ET)

10-15-2026 8:30 am - 10-16-2026 4:30 pm
Online Webinar
$799 + registration
15
Oct
2026

CSI-MS4 New York (ET)

10-15-2026 8:30 am - 10-16-2026 4:30 pm
Online Webinar
$799 + registration
19
Oct
2026

CSI - CACEO Certified Stormwater Inspector (PDT)

10-19-2026 8:00 am - 10-20-2026 2:00 pm
Online Webinar
$575 + registration
CSI - CACEO Certified Stormwater Inspector (PDT)
22
Oct
2026

CSI-MS4 New England (ET)

10-22-2026 8:30 am - 10-23-2026 4:30 pm
Online Webinar
$799 + registration
22
Oct
2026

Water Quality Standards, 303(d) Lists, TMDLs (EST)

10-22-2026 12:00 pm -4:00 pm
Online Webinar
$324 + registration
26
Oct
2026

CSI-MS4 Arizona-Colorado (MT)

10-26-2026 8:30 am - 10-27-2026 4:30 pm
Online Webinar
$799 + registration
26
Oct
2026

CSI-MS4 Nevada-New Mexico-Wyoming (MT)

10-26-2026 8:30 am - 10-27-2026 4:30 pm
Online Webinar
$799 + registration
28
Oct
2026

CSI-Industrial Midwest Online (CT)

10-28-2026 8:00 am -4:00 pm
Online Webinar
$399 + registration
29
Oct
2026

Florida Stormwater Erosion and Sediment Control Inspector

10-29-2026 8:30 am - 10-30-2026 4:00 pm
Online Webinar
$225 + registration
Florida Stormwater Erosion and Sediment Control Inspector
02
Nov
2026

CSI-MS4 Florida-Georgia (ET)

11-02-2026 8:30 am - 11-03-2026 4:30 pm
Online Webinar
$799 + registration