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

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
04
Feb
2026

CSI Construction Re-Certification

02-04-2026 10:30 am -4:30 pm
Online Webinar
$299 + registration
05
Feb
2026

CSI-MS4 Alabama (ET)

02-05-2026 8:30 am - 02-06-2026 4:30 pm
Online Webinar
$799 + registration
05
Feb
2026

CSI-MS4 Mississippi (ET)

02-05-2026 8:30 am - 02-06-2026 4:30 pm
Online Webinar
$799 + registration
09
Feb
2026

CSI-MS4 Louisiana (CT)

02-09-2026 8:30 am - 02-10-2026 4:30 pm
Online Webinar
$799 + registration
09
Feb
2026

CSI-MS4 Texas (CT)

02-09-2026 8:30 am - 02-10-2026 4:30 pm
Online Webinar
$799 + registration
10
Feb
2026

Industrial SWPPP Development Online

02-10-2026 8:00 am -4:00 pm
Online Webinar
$950 + registration + shipping