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

19
Mar
2026

CSI-MS4 Delaware (ET)

03-19-2026 8:30 am - 03-20-2026 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

19
Mar
2026

CSI-MS4 Maryland/Virginia (ET)

03-19-2026 8:30 am - 03-20-2026 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

23
Mar
2026

Construction SWPPP Development - Florida

03-23-2026 8:30 am - 03-24-2026 12:30 pm
Online Webinar
$950 + registration

We are no longer accepting registration for this event

23
Mar
2026

CSI – Construction West Coast (PT)

03-23-2026 10:00 am - 03-24-2026 4:00 pm
Online Webinar
$599 + registration
25
Mar
2026

CSI MS4 Re-Certification

03-25-2026 10:30 am -4:30 pm
Online Webinar
$299 + registration
26
Mar
2026

CSI-MS4 New England (ET)

03-26-2026 8:30 am - 03-27-2026 4:30 pm
Online Webinar
$799 + registration
26
Mar
2026

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

03-26-2026 12:00 pm -4:00 pm
Online Webinar
$324 + registration
30
Mar
2026

CSI-MS4 Nevada/New Mexico (PT)

03-30-2026 8:30 am - 03-31-2026 4:30 pm
Online Webinar
$799 + registration
30
Mar
2026

Florida Stormwater Erosion and Sediment Control Inspector

03-30-2026 8:30 am - 03-31-2026 4:00 pm
Online Webinar
$225 + registration
Florida Stormwater Erosion and Sediment Control Inspector
01
Apr
2026

CSI-Industrial East Coast Online (ET)

04-01-2026 8:00 am -4:00 pm
Online Webinar
$399 + registration