Regulation 20 – Attained EEDI (Energy Efficient Design Index)

This regulation deals with the Attained EEDI and specifies the need for its calculation and verification. Attained EEDI is the actual EEDI of a ship as calculated using EEDI formula.

According to this regulation:

  • The Attained EEDI must be calculated for each new ship, each new ship when undergoes a major conversion, or existing ships that undergo so many changes as according to judgment by Administration can be considered as a new ship.
  • The Attained EEDI is only applicable to a large number of ship types but not all ships. For example, fishing vessels are not required to have an Attain EEDI.
  • The Attained EEDI must be calculated taking into account relevant IMO guidelines.
  • The Attained EEDI must be accompanied by an “EEDI Technical File” that contains the information necessary for the calculation of the attained EEDI and that shows the process of calculation.
  • The Attained EEDI must be verified, based on the EEDI Technical File, either by the Administration or by any organization duly authorized by it.

As indicated, some ship types (e.g. fishing vessels) are not yet part of the EEDI regulations. Specifically, the following list provides the ship types that are currently required to comply with Attained EEDI regulation.

  • Bulk carrier
  • Gas carrier (LNG carriers excluded)
  • Tanker
  • Container ship
  • General cargo ship
  • Refrigerated cargo ship
  • Combination carrier
  • Ro-Ro cargo ships (vehicle carrier)
  • Ro-Ro cargo ships
  • Ro-Ro Passenger ship
  • LNG carrier
  • Cruise passenger ships (having non-conventional propulsion)

Also, specific ship types such as those with turbine propulsion (apart from LNG ships) are also excluded (MariEMS 2017).