Mailing Address

What is CDSE's postal address?

938 Elkridge Landing Road
Linthicum, MD 21090

STEPP (Learning Management System) Help Desk

I have a question about accessing/taking a course, viewing my transcript, or am experiencing a technical difficulty or other issue related to the STEPP learning management system.
Submit an online support request ticket or call the Help Desk at 202-753-0845 within the Washington, DC area or toll free at 833-200-0035 on weekdays from 8:30 a.m. to 6:00 p.m. Eastern Time.

508 Compliance and Accessibility

I would like to provide feedback or submit questions or concerns about CDSE accessibility.

Certification Division

I have a question related to SPēD Certification.

Education Division

I have a question about the CDSE's curriculum of advance and graduate courses or Education Certificates.

Training Division

I have a question related to a specific subject matter (e.g., counterintelligence, insider threat, etc.).

Weather Guidance

I am a CDSE employee, contractor, or student seeking inclement weather guidance.
Access inclement weather guidance.


I have a suggestion to improve or enhance the CDSE website. I would like to report a broken link or other issue with a page.

Not sure whom to contact?

I am unsure whom to contact.
Email You may also view answers to frequently asked questions.