Regulation 23 - Attained Energy Efficiency Existing Ship Index (attained EEXI)
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Conventions - MARPOL - International Convention for the Prevention of Pollution from Ships - Annex VI - Regulations for the Prevention of Air Pollution from Ships - Chapter 4 - Regulations on Energy Efficiency for Ships - Regulation 23 - Attained Energy Efficiency Existing Ship Index (attained EEXI)

Regulation 23 - Attained Energy Efficiency Existing Ship Index (attained EEXI)

 1 The attained EEXI shall be calculated for:

  • .1 each ship; and

  • .2 each ship which has undergone a major conversion

which falls into one or more of the categories in regulations 2.2.5, 2.2.7, 2.2.9, 2.2.11, 2.2.14 to 2.2.16, 2.2.22, and 2.2.26 to 2.2.29 of this Annex. The attained EEXI shall be specific to each ship and shall indicate the estimated performance of the ship in terms of energy efficiency, and be accompanied by the EEXI technical file which contains the information necessary for the calculation of the attained EEXI and which shows the process of the calculation. The attained EEXI shall be verified, based on the EEXI technical file, either by the Administration or by any organization duly authorized by it.footnote

 2 The attained EEXI shall be calculated taking into account the guidelinesfootnote developed by the Organization.

 3 Notwithstanding paragraph 1 of this regulation, for each ship to which regulation 22 of this Annex applies, the attained EEDI verified by the Administration or by any organization duly authorized by it in accordance with regulation 22.1 of this Annex may be taken as the attained EEXI if the value of the attained EEDI is equal to or less than that of the required EEXI required by regulation 25 of this Annex. In this case, the attained EEXI shall be verified based on the EEDI technical file.

Parent topic: Chapter 4 - Regulations on Energy Efficiency for Ships
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