Amendments to MARPOL Annex VI [Resolution MEPC.176(58)] and amendments to the NOx Technical Code[Resolution MEPC.177(58)] were adopted at IMO MEPC 58 on 10 October 2008. ClassNK will begin NOx appraisal service relevant to NOx Tier II requirement on 13 May 2009 prior to the amendments effective date of 1 July 2010.
Upon confirmation of compliance with NOx Tier II requirements by ClassNK, a Statement of Compliance for Engine Air Pollution Prevention may be issued for marine diesel engines. If you wish to obtain this Statement of Compliance, please contact Machinery Department, ClassNK.

For your reference, an outline of the principal amendments to Regulation 13 Nitrogen Oxides(NOx)and Regulation 14 Sulphur Oxides(SOx)and Particulate Matters would be informed as follows:

1. Outline of the amendments to Regulation 13 Nitrogen Oxides(NOx)
(1) For marine diesel engines (excluding engines to be used solely in case of emergency) with a power output of more than 130kW installed on ships constructed on or after 1 January 2000, or which undergo a major conversion on or after 1 January 2000, the following regulations are to be applied in a 3 tier process. Tier II and Tier III are newly required in addition to the present requirements of Tier I as follows: