MARPOL Annex VI, Regulations for the prevention of air pollution from ships, covers the requirements in respect of both emissions to air (chapter 3) and energy efficiency (chapter 4). The requirements for control of nitrogen oxides (NOx), given by chapter 3, are supplemented by the mandatory NOx Technical Code 2008 which covers the testing, survey and certification of marine diesel engines.

This fourth edition of the consolidated texts of MARPOL Annex VI and the NOx Technical Code 2008 includes all amendments through to that adopted at MEPC 70 in October 2016.

Also contained are the current versions of the Guidelines and other information relevant to the application of MARPOL Annex VI and the NOx Technical Code 2008.

These include all those related to:
• exhaust gas cleaning systems;
• the energy efficiency aspects of chapter 4; and
• selective catalytic reduction systems.

This publication is intended to be of use to maritime administrations, recognized organizations, shipping companies, classification societies, educational institutes, shipbuilders and equipment manufacturers together with others with an interest in the prevention of air pollution from ships and in the technical and operational measures to improve the energy efficiency of ships.