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National Assistant and Designated Duty Engineer (DDE) General, Sea Service and Other Requirements by U.S. Coast Guard

assistant engineer ship

Junior engineers of the engine department in a ship or a seagoing vessel, an Assistant Enginner (2nd Assistant Engineer, 3rd Assistant Engineer, Assistant Engineer Limited, Designated Duty Engineer, Assistant Engineer MODU, or Assistant Engineer OSV), is responsible (not limited to) for ship maintenance, engine maintenance, machinery repairs, assist the Chief Engineer, fueling, and more. They are also responsible for electrical, sewage treatment, lube oil, bilge, and oily water separation systems, stand a watch etc. The exact duties of these positions will depend upon the type of ship or vessel and arrangement of the engine department.

assistant engineer uscg

You may also read: United States Coast Guard (USCGRequirements for 1st Assistant Engineer (Second Engineer)

General Requirements for Assistant Engineer


  • U.S. Citizenship
  • TWIC (Transportation Workers Identification Card)
  • Medical Certificate
  • Drug testing compliance (within 6 months)
  • Sea Service letters or discharges

USCG Common Other Requirements for Assistant Engineer (All)

USCG 2nd Assistant Engineer of Steam / Motor / Gas Turbine Requirements

  • Age: 21

Sea Service Requirements

  • Recency: 90 days in the past 3 years on vessels of appropriate horsepower
  • 360 days of service as an assistant engineer, while holding a MMC as 3rd A/E, OR
  • 360 days of service while holding a MMC as 3rd A/E, OF WHICH 180 days of service as 3RD A/E, AND QMED service calculated on a 2 for 1 basis up to maximum 180 days
  • Until March 24, 2019, applicants holding Chief Engineer Limited may qualify for 2ND A/E with: 360 days of service as Chief Engineer (Limited) and completed appropriate exams

Propulsion (Steam / Motor / Gas Turbine)

  • At least 1/3 of the minimum service requirements must have been on the particular mode of propulsion (steam, motor and/or gas turbine) for which applied. OR,
  • Completion of a Coast Guard approved course (sea service)
  • Note: All applicants who began service before March 24, 2014 may qualify for an endorsement valid for gas turbine propulsion based on the previous method of service or training until March 24, 2019.

Horsepower

  • Unlimited Horsepower: At least 50% of the required service on vessels of 4000 HP/3000 kW or more, OR
  • Limited Horsepower: Max HP that 25% of the required service was obtained or 150% HP on which at least 50% of the required service was obtained, WHICHEVER IS GREATER.

USCG 3rd Assistant Engineer of Steam / Motor / Gas Turbine Requirements

  • Age: 19

Sea Service Requirements

  • Recency: 90 days in the past 3 years on vessels of appropriate horsepower (deck service may apply).
  • 1080 days of service in the engine room WITH 720 days as QMED or equivalent position; 90 days of deck service on vessels of 100 GRT or more is creditable (may be applied towards recency), OR
  • 1080 days of service as an apprentice to the machinist trade engaged in the construction or repair of marine, locomotive, or stationary engines WITH 360 days service in the engine room as Oiler, Fireman/Watertender or Junior Engineer OR
  • Graduate of a Maritime Academy (Engineering Curriculum/Class): USMMA (New York), USCGA (Connecticut), USNA in Maryland (with qualification as EWO or EO), California Maritime Academy, Maine Maritime Academy, SUNY Maritime (New York), Texas Maritime Academy, Massachusetts Maritime Academy, GLMA (Michigan) OR
  • Graduate of an ABET accredited school: Marine Engineering program WITH 90 days of service in the engine room of steam, motor, or gas turbine vessels OR
  • Graduate of mechanical or electrical engineering course of an ABET accredited school of technology: WITH 180 days service in the engine room of steam, motor, or gas turbine vessels, OR
  • Completion of an comprehensive apprentice engineer training program, approved by the Coast Guard, OR
  • 360 days service as assistant engineer (limited) and completion of the appropriate examination

Propulsion (Steam / Motor / Gas Turbine)

  • At least 1/3 of the minimum service requirements must have been on the particular mode of propulsion (steam, motor and/or gas turbine) for which applied; OR
  • Completion of a Coast Guard approved training course (sea service)
  • Note: All applicants who began service before March 24, 2014 may qualify for an endorsement valid for gas turbine propulsion based on the previous method of service or training until March 24, 2019.

Horsepower

  • Unlimited Horsepower: At least 50% of the required service on vessels of 4000 HP/3000kW or more, OR
  • Limited Horsepower: Max HP that 25% of the required service was obtained or 150% HP on which at least 50% of the required service was obtained, WHICHEVER IS GREATER.

USCG Assistant Engineer (Limited) Of Steam / Motor / Gas Turbine Requirements

  • Age: 19

Sea Service Requirements

  • Recency: 90 days in the past 3 years on vessels of appropriate horsepower (deck service may apply)
  • Service gained in the deck department on vessels of appropriate tonnage may substitute for up to 25% or 180 days (whichever is less) of the required service (may be applied towards recency).
  • 1080 days of service in the engine room, with 540 days as a QMED or equivalent position

Propulsion (Steam / Motor / Gas Turbine)

  • At least 1/3 of the minimum service requirements must have been on the particular mode of propulsion (steam, motor and/or gas turbine) for which applied.
  • Completion of a Coast Guard approved course (sea service)
  • Note: All applicants who began service before March 24, 2014 may qualify for an endorsement valid for gas turbine propulsion based on the previous method of service or training until March 24, 2019.

Horsepower

  • Unlimited Horsepower: At least 50% of the required service on vessels of 4000 HP /3000 kW or more, OR
  • Limited Horsepower: Max HP that 25% of the required service was obtained or 150% HP on which at least 50% of the required service was obtained, WHICHEVER IS GREATER.
  • 1080 days of sea going service as OICNW on vessels operating in oceans, near-coastal and/or Great Lakes, OR
  • 720 days as OICNW on vessels operating in oceans, near-coastal and/or Great Lakes of which 360 days must be as Chief Mate
  • Notes: Service on inland waters that are navigable waters of the United States may be substituted for up to 50 percent of the total required service; Experience gained in the engine department on vessels may be creditable for up to 90 days of the service requirements; Service as a rating will not be accepted to upgrade from operational level to management level STCW endorsements

USCG Designated Duty Engineer (DDE) of Steam / Motor / Gas Turbine Requirements

  • Age: DDE AHP - 21; DDE 4000 /3000 kW - 19; DDE 1000/750 kW - 18

Sea Service Requirements

  • Recency: 90 days in the past 3 years on vessels (deck service may apply)
  • Service gained in the deck department on vessels of appropriate tonnage may substitute for up to 25% or 180 days (whichever is less) of the required service (may be applied towards recency)
  • DDE - AHP: 1080 days of service in the engine room, with 540 days as a QMED or equivalent position
  • DDE - 4000 HP /3000 kW: 720 days of service in the engine room, with 360 days as a QMED or equivalent position
  • DDE - 1000 HP / 750 kW: 360 days of service in the engine room, with 180 days as a QMED or equivalent position

Propulsion (Steam / Motor / Gas Turbine)

  • At least 1/3 of the minimum service requirements must have been on the particular mode of propulsion (steam, motor and/or gas turbine) for which applied
  • Completion of a Coast Guard approved course (sea service)
  • Note: All applicants who began service before March 24, 2014 may qualify for an endorsement valid for gas turbine propulsion based on the previous method of service or training until March 24, 2019.

USCG Assistant Engineer of MODU Requirements

  • Age: 19

Sea Service Requirements

  • Recency: 90 days in the past 3 years on vessels of appropriate horsepower

Assistant Engineer of MODU Sea Service

  • Three years of employment assigned to MODUs including eighteen months of employment as mechanic, motorman, subsea engineer, electrician, barge engineer, toolpusher, unit superintendent, crane operator or equivalent, WITH Nine months of that employment must have been assigned to self-propelled or propulsion assisted units (*see note below) OR
  • Three years of employment in the machinist trade engaged in the construction or repair of diesel engines AND 1 year of employment assigned to MODU’s in the capacity of mechanic, motorman, oiler, or equivalent. WITH Nine months of that employment must have been assigned to selfpropelled or propulsion assisted units; OR
  • Degree from a program in marine, mechanical, or electrical engineering technology which is accredited by the Accreditation Board for Engineering and Technology (ABET). (NMC will give consideration to accepting education credentials from programs having other than ABET accreditation), AND When applying through a degree program, six months of employment as mechanic, motorman, subsea engineer, electrician, barge engineer, tool pusher, unit superintendent, crane operator or equivalent aboard self-propelled or propulsion assisted units.

Assistant Engineer MODU - Limited Sea Service

  • If applicant successfully completes an examination, AND possesses the total required sea service for an endorsement as assistant engineer (MODU), but does not possess the required sea service onboard self-propelled or propulsion assisted units, the Coast Guard may issue the applicant an endorsement limited to non-self propelled units
  • Note: The Coast Guard may remove the limitation upon presentation of satisfactory evidence of the required self-propelled sea service
  • Three years of employment assigned to MODUs including three years of employment as mechanic, motorman, subsea engineer, electrician, barge engineer, toolpusher, unit superintendent, crane operator or equivalent, WITH Nine months of that employment must have been assigned to self-propelled or propulsion assisted units, UNLESS If mariner does not have Nine Months service on self-propelled or propulsion assisted units, will be issued Assistant Engineer Limited MODU, upon obtaining the nine months on self-propelled or propulsion assisted units, the limitation will be removed

*’Propulsion assisted’ means the MODU has a propulsion plant, but it doesn’t have enough propulsion power to move the rig any significant distance without assistance from another vessel. It’s used to keep the MODU on station, but not to go from point A to B. The language highlighted is used in the reg to distinguish these two types from a rig without a propulsion plant of any kind.

USCG Assistant Engineer OSV (Formerly Engineer OSV) Requirementss


  • Age: 21

Sea Service Requirements

  • Recency: 90 days in the past 3 years on vessels of appropriate horsepower

Assistant Engineer OSV Unlimited HP Sea Service

  • 1080 days of service in the engine department OF WHICH 540 days of this service must have been as a QMED or equivalent position OR 360 days of total service as part of an approved or accepted engineer (OSV) training program

Assistant Engineer OSV < 4000 HP/3000 kW Sea Service

  • 720 days of service in the engineroom, OF WHICH 360 days of service must have been as a QMED or equivalent position

Assistant Engineer OSV <1000 HP/750 kW Sea Service

  • 360 days of service in the engineroom, OF WHICH 180 days of service must have been as a QMED or equivalent position

Propulsion (Steam / Motor / Gas Turbine)

  • At least 1/3 of the minimum service requirements must have been on the particular mode of propulsion (steam, motor and/or gas turbine) for which applied; OR
  • Completion of a Coast Guard approved course (sea service)
  • Note: All applicants who began service before March 24, 2014 may qualify for an endorsement valid for gas turbine propulsion based on the previous method of service or training until March 24, 2019.

Disclaimer: For general information purpose - please check with USCG for the latest requirements and accurate info

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