DDE Certification
The National Designated Duty Engineer Steam/Motor/GT credential is a U.S. Coast Guard engineering endorsement.
DDE Core Study Guides
Core Study Guides for the National Designated Duty Engineer Steam/Motor/GT (DDE) (DDE) exam - 10 in-depth guides to help you prepare with confidence. Browse all study resources or jump straight into a guide below.
DDE Exam Domains 2026: Complete Guide to All 6 Content Areas
The National Designated Duty Engineer Steam/Motor/GT (DDE) credential is examined through the United States Coast Guard National Maritime Center (NMC).
DDE Meaning
Search for "DDE" and you will find a crowd of unrelated credentials, programs and technical terms sharing three letters.
DDE Study Guide 2026: How to Pass on Your First Attempt
The National Designated Duty Engineer Steam/Motor/GT credential is a U.S. Coast Guard mariner credential, and its examinations are administered through...
DDE Training
The National Designated Duty Engineer Steam/Motor/GT (DDE) credential is administered through the United States Coast Guard National Maritime Center...
What Does DDE Mean?
On this site, DDE stands for National Designated Duty Engineer Steam/Motor/GT. It is a marine engineering credential administered through the United...
What Does DDE Stand For?
DDE stands for Designated Duty Engineer. In the credential covered here, the full title is National Designated Duty Engineer Steam/Motor/GT (DDE), a...
What Is A DDE?
On this site, DDE means exactly one thing: the National Designated Duty Engineer Steam/Motor/GT credential. It belongs to the world of U.S.
What Is DDE Certification?
If you have landed here searching for "DDE certification," it is worth pinning down the meaning first, because the acronym is shared by several...
What Is DDE?
Several unrelated credentials share the same three letters, so precision matters from the first sentence. On this site, DDE refers to the National...
Ready to Pass Your DDE Exam?
Put these guides into practice with free DDE questions