Nonpoint Source Training Center

Contact: John Maclaine, 207-615-3279, fax 207-287-2814

The Nonpoint Source (NPS) Training Center provides training and certification opportunities to individuals seeking to educate themselves on the effects of NPS in Maine. Training Center Programs and Resources help provide tools and practices to prevent this diffuse pollution at its source.

NPS Training Center courses may be of interest to contractors, landscapers, municipal officials, engineers, inspectors, and project managers.

In accordance with Gov. Janet Mills and the Maine Department of Health and Human Services’ recommendations designed to help prevent the spread of Coronavirus Disease (COVID-19), the Maine Department of Environmental Protection’s (Maine DEP) Nonpoint Source Training Center is holding limited, in-person trainings for new certifications in Erosion Control Practices. Attendees must follow all training session guidelines including maintaining social distance and wearing a mask. Attendance limits and other precautions will be strictly-enforced and refreshments will not be provided at training events until further notice. For information on the status of upcoming courses, see our Training Schedule.

We will re-evaluate the need for any further cancellations and updates will be posted on this page. For more information about the current in-person training COVID-19 safety plan, please email

Certification in Erosion Control Practices

is voluntary for those involved in soil disturbance activities in Maine; however, within the Shoreland Zone, a certified individual must be on-site during all phases of soil disturbance.

List of certified contractors
List of certified companies

Certification in Inspection and Maintenance of Stormwater BMPs

is recommended for anyone who is performing 5-year re-certification inspections (Chapter 500) and those conducting post-construction inspections (MS4)

List of certified individuals

“Site Law” Third-Party Inspectors

As a condition of some Site Law permits, the Maine DEP requires the permit applicant to retain the services of a third-party inspector to monitor compliance with permit conditions during construction.

List of third-party inspectors