The North American area (regulation 13.6.1 and appendix VII of MARPOL Annex VI): "The North American area comprises: the sea area located off the Pacific coasts of the United States and Canada, enclosed by geodesic lines connecting the following coordinates:

Emission control areas (ECAs), or sulfur emission control areas (SECAs), are sea areas in which stricter controls were established to minimize airborne emissions from ships as defined by Annex VI [1] of the 1997 MARPOL Protocol.

Annex VI Regulations for the Prevention of Air Pollution from Ships establishes certain sulphur oxide (SOx) Emission Control Areas with more stringent controls on sulphur emissions and nitrogen oxides (NOx) Emission Control Areas for Tier III NOx emission standards. Special areas under MARPOL are as follows:

Emission Control Areas (ECA) are defined under MARPOL Annex VI as areas where the adoption of special mandatory measures to regulate emissions from ships is required to prevent, reduce and control air pollution from NOX and/or SOX and/or particulate matter (PM) and their attendant adverse impacts on human health and the environment.

2000年1月1日 · The revised Annex VI has also introduced the prospect of retrospective NOx certification, regulation 13.7, in the case of diesel engines of more than 5000 kW power output and a per cylinder displacement of 90 litres and above installed on ships constructed between 1 January 1990 and 31 December 1999.

2022年10月26日 · An Emission Control Area (ECA) is a sea area in which stricter controls to minimize airborne emissions from ships are established. Initially this regulation was aimed to reduce sulphur oxides (SOX) and is extended in 2005 to …

Currently there are two NOx ECAs, the North American and the US Caribbean Sea, whereas there are four Sulphur Oxides (SOx) ECAs including the Baltic Sea and the North Sea. The NOx Tier III standards will be applicable to marine diesel engines installed: • on ships constructed on or after 1 January 2016 and which will operate in existing NOx

Currently there are two NOx ECAs, the North American and the US Caribbean Sea, whereas there are four Sulphur Oxides (SOx) ECAs including the Baltic Sea and the North Sea. The NOx Tier III standards will be applicable to marine diesel engines installed:

(22 to 26 March 2010), adopted, by resolution MEPC.190(60), amendments to MARPOL Annex VI to designate the North American Emission Control Area for NOx, SOx and particulate matter (amendments to regulation 13, 14 and new Appendix VII).

2023年10月15日 · Results showed that 447.13 tonnes of NOx could be reduced each year in the North Adriatic Sea area around the ports of Rijeka, Trieste and Venice in the event that NECA regulations are stipulated. This would contribute to an additional reduction of NOx emissions, between 68 and 81%, along the containership shipping lanes through the Adriatic Sea.