Infographic North American Emission Control Area Share ECAs are established by the IMO to limit emissions from ships in coastal areas. In North America’s ECA, ships must burn fuel or scrub exhaust to emit a maximum of 0.1% sulphur content since January 2015. Published March 25, 2020 | Last modified on June 20, 2024 You may also be interested in Infographic Marine Shipping and You – Household Microsite Oil Tankers Infographic Impact of Air Pollutants from Marine Shipping