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

22
Jan
2026

CSI-MS4 Puerto Rico (ET)

01-22-2026 8:30 am - 01-23-2026 4:30 pm
Online Webinar
$799 + registration
26
Jan
2026

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

01-26-2026 8:30 am - 01-27-2026 4:30 pm
Online Webinar
$799 + registration
26
Jan
2026

CSI-MS4 Arizona/Colorado (MT)

01-26-2026 8:30 am - 01-27-2026 4:30 pm
Online Webinar
$799 + registration
26
Jan
2026

Florida Stormwater Erosion and Sediment Control Inspector

01-26-2026 8:30 am - 01-27-2026 4:00 pm
Online Webinar
$225 + registration
Florida Stormwater Erosion and Sediment Control Inspector
28
Jan
2026

CSI-Industrial East Coast Online (ET)

01-28-2026 8:00 am -4:00 pm
Online Webinar
$399 + registration
29
Jan
2026

CSI-MS4 Indiana/Michigan (ET)

01-29-2026 8:30 am - 01-30-2026 4:30 pm
Online Webinar
$799 + registration
29
Jan
2026

CSI-MS4 Eastern States (ET)

01-29-2026 8:30 am - 01-30-2026 4:30 pm
Online Webinar
$799 + registration
02
Feb
2026

CSI-MS4 Alaska (PT)

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

CSI-MS4 California (PT)

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

CSI – Construction West Coast (PT)

02-02-2026 10:00 am - 02-03-2026 4:00 pm
Online Webinar
$599 + registration