Relevant information on the minimum propulsion power requirements applied for the ships to which compliance with an EEDI limit value (required EEDI) is required has already been provided in ClassNK Technical Information No. TEC-0954. Since the application of the guidelines defining this requirement has been revised, the Technical Information is revised as described below.
The said ClassNK Technical Information No. TEC-0954 is thus revoked, accordingly.

1. Background
For ships to which the requirements regarding required EEDI specified in Reg. 21 of MARPOL ANNEX VI apply, the installed propulsion power is not to be less than the propulsion power needed to maintain the manoeuvrability of the ship under adverse conditions as defined in the guidelines developed by the IMO, in accordance with Reg. 21.5 of ANNEX VI.

At MEPC 65 held in May 2013, "2013 Interim Guidelines for Determining Minimum Propulsion Power to Maintain the Manoeuvrability of Ships in Adverse Conditions" (hereinafter referred to as "2013 interim minimum power guidelines") were adopted.

2. Extension of the application of the 2013 interim minimum power guidelines
The 2013 interim minimum power guidelines were developed as an interim instrument to use during phase 0 of EEDI implementation from January 2013 to December 2014, and it was agreed that the guidelines applicable to ships from phase 1 will be developed by IMO at a later stage.

At MEPC 67 held in October 2014, since there is no concrete proposal concerning new guidelines, it was agreed to extend the scope of the 2013 interim minimum power guidelines to phase 1 from January 2015 to December 2019, without modifications for the applicable ships* and assessment methods. On the other hand, at MEPC 67, since there were some strong assertions to reinforce the requirements of the current interim guidelines due to safety concerns, it was also agreed to continuously discuss this matter at a future session.

* Bulk carriers, tankers, or combination carriers of 20,000DWT or above, defined as new ship under Reg.2.23 of MARPOL ANNEX VI

(To be continued)