The Center for Development of Security Excellence (CDSE) is located at:
      938 Elkridge Landing Road
      Linthicum, MD 21090

If your question or concern references a specific CDSE community practice, or course content, please use the following email addresses:

• CDSE Inclement Weather/Facility Closings: 410-689-7725
• CDSE Student Inclement Weather: 410-689-7720
• 508 Compliance and Accessibility questions: dcsa.cdseweb@mail.mil
• Education Division: dcsa.cdseeducation@mail.mil
• STEPP username/password issues: 202-753-0845 within the Washington, DC area or toll free at 833-200-0035 (Weekdays 8:30AM to 6:00 PM Eastern Time)
• SPēD Certification Program questions
• Training Division questions: dcsa.cdsetraining@mail.mil
•  Webmaster: dcsa.cdseweb@mail.mil

If you are seeking a point of contact for a specific area of security and are unsure of who to contact, send a message to CDSE at dcsa.ncr.dcsa-cdse.mbx.cdse-front-office@mail.mil describing the specific information you are requesting. Your request will be forwarded to the appropriate authority for response.