The paper briefly introduces the development trend in IMO future requirements for NOx emission from marine diesel engines, based on the relevant discussion and modification to MARPOL Annex Ⅵ on further reducing exhaust emission from marine diesel engines, analyses the impacts caused by these future standards and requirements, and provides the latest information for the parties concerned.

This paper briefly introduces the situations of proposals for future marine fuel oil standards in MARPOL Annex VI under consideration by IMO currently,discusses and analyzes the significant impacts on shipping industry and refining industry that would be caused by IMO future marine fuel oil standards.

Recognizing the need to prevent and control air pollution from ships,Addition of AnnexⅥto the Convention, AnnexⅥentitled Regulations for the prevention of Air pollution from ships.