This document has been consolidated into resolution MEPC.254(67)
1 Footnote for the title of section 2 is replaced by the following:
2 Paragraph 4.1.1 is replaced by the following:
"4.1.1 The attained EEDI should be calculated in accordance with regulation
20 of MARPOL Annex VI and the 2018 Guidelines on the method of
calculation of the attained Energy Efficiency Design Index (EEDI) for new ships
(resolution MEPC.308(73)) (EEDI Calculation Guidelines). Survey and
certification of the EEDI should be conducted in two stages: preliminary
verification at the design stage and final verification at the sea trial. The basic
flow of the survey and certification process is presented in figure 1."
3 Paragraphs 4.2.2.1 and 4.2.2.2 are replaced by the following:
-
".1 deadweight (DWT) or gross tonnage (GT) for passenger and ro-ro passenger
ships, the maximum continuous rating (MCR) of the main and auxiliary
engines, the ship speed (Vref), as specified in paragraph
2.2.2 of the EEDI Calculation Guidelines, type of fuel, the specific fuel
consumption (SFC) of the main engine at 75% of MCR power, the SFC
of the auxiliary engines at 50% MCR power, and the electric power table
for certain ship types, as necessary, as defined in the EEDI Calculation
Guidelines;
-
.2 power curve(s) (kW – knot) estimated at design stage under the condition
as specified in paragraph 2.2.2 of the EEDI Calculation Guidelines, and, in
the event that the sea trial is carried out in a condition other than the
above condition, also a power curve estimated under the sea trial
condition;"
4 Paragraph 4.2.2.8.2 is replaced by the following:
5 Paragraph 4.2.2.8.5 is replaced by the following:
6 Paragraph 4.2.5 is replaced by the following:
-
"4.2.5 For ships to which regulation
21 of MARPOL Annex VI applies, the power curves used for the
preliminary verification at the design stage should be based on reliable
results of tank tests. A tank test for an individual ship may be omitted
based on technical justifications such as availability of the results of
tank tests for ships of the same type. In addition, the omission of tank
tests is acceptable for a ship for which sea trials will be carried out
under the condition as specified in paragraph 2.2.2 of the EEDI Calculation
Guidelines, upon agreement of the shipowner and shipbuilder and with the
approval of the verifier. To ensure the quality of tank tests, the ITTC
quality system should be taken into account. Model tank tests should be
witnessed by the verifier."
7 Paragraph 4.2.7.4 is replaced by the following:
8 Paragraph 4.3.1 is replaced by the following:
9 Paragraph 4.3.5 is replaced by the following:
10 Paragraph 4.3.6 is replaced by the following:
11 Paragraph 4.3.8 is replaced by the following:
-
"4.3.8 The submitter should develop power curves based on the measured ship
speed and the measured output of the main engine at sea trial. For the
development of the power curves, the submitter should calibrate the measured
ship speed, if necessary, by taking into account the effects of wind,
current, waves, shallow water, displacement, water temperature and water
density in accordance with ITTC Recommended Procedure 7.5-04-01-01.1 Speed
and Power Trials 2017 or ISO 15016:2015. Upon agreement with the shipowner,
the submitter should submit a report on the speed trials including details
of the power curve development to the verifier for verification."
12 Paragraphs 4.3.9.1 and 4.3.9.2 are replaced by the following:
-
".1 for ships for which sea trial is conducted under the condition as
specified in paragraph 2.2.2 of the EEDI Calculation Guidelines: the
attained EEDI should be recalculated using the measured ship speed at sea
trial at the power of the main engine as specified in paragraph 2.2.5 of the
EEDI Calculation Guidelines; and
-
.2 for ships for which sea trial cannot be conducted under the condition as
specified in paragraph 2.2.2 of the EEDI Calculation Guidelines: if the
measured ship speed at the power of the main engine as specified in
paragraph 2.2.5 of the EEDI Calculation Guidelines at the sea trial
conditions is different from the expected ship speed on the power curve at
the corresponding condition, the shipbuilder should recalculate the attained
EEDI by adjusting ship speed under the condition as specified in paragraph
2.2.2 of the EEDI Calculation Guidelines by an appropriate correction method
that is agreed by the verifier."
13 Paragraph 4.3.13 is replaced by the following:
-
"4.3.13 The EEDI Technical File should be revised, as necessary, by taking
into account the results of sea trials. Such revision should include, as
applicable, the adjusted power curve based on the results of sea trials
(namely, modified ship speed under the condition as specified in paragraph
2.2.2 of the EEDI Calculation Guidelines), the finally determined
deadweight/gross tonnage, η for LNG carriers having diesel electric
propulsion system and SFC described in the approved NOX
Technical File, and the recalculated attained EEDI based on these
modifications."
14 Section 2 of appendix 2 is replaced by the following:
15 Paragraph 3.5 of appendix 2 is replaced by the following:
16 Paragraph 4.1 of appendix 2 is replaced by the following: