Outlines of the regulation
Amendments to MARPOL Annex VI that make the regulation of Energy Efficiency Design Index (EEDI) and Ship Energy Efficiency Management Plan (SEEMP) mandatory were adopted at the 62nd session of the Marine Environment Protection Committee (MEPC 62) held in July 2011 and entered into force as from 1 January 2013.
EEDI regulation applies to ships of 400 gross tonnage and above, engaged in international voyages (except platforms, drilling rigs and those not propelled by mechanical means such as barges). International Energy Efficiency (IEE) Certificate will be issued for a ship whose compliance with the regulation is verified. The timing of initial survey for IEE Certificate is before being put in service in case of new ships falling into one or more of the categories defined as 1-3 below, and at the first intermediate or renewal survey of the International Air Pollution Prevention (IAPP) Certificate on or after 1 January 2013 in case of an existing ship. Notwithstanding the above, the EEDI regulation only applies to the new ships falling into the ship types* designated by the Convention.
A ship for which the building contract is placed on or after 1 January 2013;
In the absence of a building contract, a ship the keel of which is laid or which is at a similar stage of construction on or after 1 July 2013; or
A ship the delivery of which is on or after 1 July 2015.
*Bulk carrier, Gas carrier, Tanker, Containership, General cargo ship, Refrigerated cargo carrier, Combination carrier, Passenger ship, Ro-ro cargo ship (vehicle carrier), Ro-ro cargo ship, Ro-ro passenger ship and LNG carrier having conventional propulsion, and Cruise passenger ship and LNG carrier having non-conventional propulsion (i.e. diesel-electric propulsion, turbine propulsion, hybrid propulsion systems, etc.)
Regulation and the relevant guidelines/guidance
Amendments to MARPOL Annex VI and EEDI relevant guidelines/guidance issued by the IMO can be downloaded from the links below.
Amendments to MARPOL Annex VI (Rules related to energy efficiency)
| Resolution MEPC.203(62) | Amendments to MARPOL Annex VI (Inclusion of regulations on energy efficiency for ships in MARPOL Annex VI) |
| Resolution MEPC.301(72) | Amendments to MARPOL Annex VI (ECAs and required EEDI for ro-ro cargo ships and ro-ro passenger ships) |
| Resolution MEPC.301(72) | Amendments to MARPOL Annex VI (ECAs and required EEDI for ro-ro cargo ships and ro-ro passenger ships) |
| Resolution MEPC.316(74) | Amendments to MARPOL Annex VI (Electronic Record Books and EEDI regulations for ice-strengthened ships) |
| Resolution MEPC.324(75) | Amendments to MARPOL Annex VI (Procedures for sampling and verification of the sulphur content of fuel oil and the Energy Efficiency Design Index(EEDI)) |
| MEPC.1/Circ.795 /Rev.5 | Unified interpretations to MARPOL Annex VI |
IMO guidelines/guidance
EEDI Regulation
| Resolution MEPC.308(73) | 2018 Guidelines on the method of calculation of the attained Energy Efficiency Design Index (EEDI) for new ships |
| Resolution MEPC.322(74) | Amendments to the 2018 guidelines on the method of calculation of the attained Energy Efficiency Design Index (EEDI) for new ships |
| Resolution MEPC.332(76) | Amendments to the 2018 guidelines on the method of calculation of the attained Energy Efficiency Design Index (EEDI)for new ships |
| MEPC.1/Circ.855 /Rev.2 | 2014 Guidelines on survey and certification of the Energy Efficiency Design Index (EEDI) |
| Resolution MEPC.231(65) | 2013 Guidelines for calculation of reference lines for use with the Energy Efficiency Design Index (EEDI) |
| Resolution MEPC.233(65) | 2013 Guidelines for calculation of reference lines for use with the Energy Efficiency Design Index (EEDI) for cruisepassengerships having non-conventional propulsion |
| MEPC.1/Circ.850 /Rev.3 | Guidelines for determining minimum propulsion power to maintain the manoeuvrability of ships in adverse conditions |
| MEPC.1/Circ.896 | 2021 Guidance on treatment of innovative energy efficiency technologies for calculation and verification of the attainedEEDI and EEXI |
| MEPC.1/Circ.796 | Interim Guidelines for the calculation of the coefficient fw for decrease in ship speed in a representative sea condition fortrial use |
| IACS PR38 Rev.3 | Procedure for calculation and verification of the Energy Efficiency Design Index (EEDI) |