U.S. Coast Guard Career Guide

Designated Duty Engineer

U.S. Coast Guard Career Guide

Designated Duty Engineer


Application Requirements

  • Verify CG-719B Application complete
  • Verify MMLD set to “Y” for SSEB Screening

Citizenship Requirements
Must have U.S. Citizenship

Minimum Age Required

  • DDE AHP: 21 Years
  • DDE 4000/3000 kW: 19 Years
  • DDE 1000/750 kW: 18 Years

Medical Certificate Requirements

  • Original – Must hold a valid Medical Certificate or be approved for Medical Certificate.
  • Renewal, ROG, New Endorsement – Must hold an unexpired Medical Certificate or submit a Medical Certificate application.

Drug Testing Requirement
Must be Drug testing compliant

Fee Requirement
Mariner Fees must be paid


  • Exam codes & credential testing comments Entered in MMLD
  • Completion of a Coast Guard approved course (in lieu of exam):
    • Steam, OR
    • Motor, OR
    • Gas Turbine
  • Exam scores entered in MMLD
  • Note to Eval: A person holding an endorsement as DDE may qualify for an STCW endorsement, according to § 11.325, 11.327, 11.329, and 11.331.

***This information is from the U.S. Coast Guard’s National Maritime Center. The licensing and career information published here is provided as a courtesy, convenience and without cost. We do not claim to represent the U.S. Coast Guard or other licensing Administrations. NMI does not provide formal advice regarding USCG license eligibility and cannot guarantee an individual’s eligibility for any specific license or credential. NMI accepts no responsibility or liability for the accuracy or validity of general information provided. Individuals seeking confirmation of eligibility for any specific USCG license or credential must contact the USCG directly for an evaluation.***