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 Trending Article Marine shipping in the Great Lakes: What you need to know Article Ballast water management: stopping the spread of invasive species by ships Article Anti-fouling paints: What are they and what effects do they have on the environment?