Map layers in ShipAtlas help you visualize important maritime zones, regulations, and activity directly on the map.
ShipAtlas offers 10 map layers to help you stay informed:
ECA / SECA
INL
Polar Zones
Sea Ice
Canals
EEZ
Load Lines
Anti-Shipping Activity
War Zones
Wind Farms
💡Good to know
Map layers are not available when using the Satellite map style
Some layers require you to zoom in to become visible
ECA / SECA zones
ECA/SECA stands for Emission Control Area / Sulphur Emission Control Area.
These zones regulate sulphur emissions from ships.
Since January 1, 2020, the IMO requires sulphur emissions to be reduced from 3.5% to 0.5% globally
In designated ECAs (e.g., North Sea, Baltic Sea), stricter limits of 0.1% apply
💡 Tip: Click on a zone to view specific regulations for that area.
INL
INL defines where ships can operate without additional insurance premiums.
💡 Tip: Click on a zone to see detailed navigation limits and requirements.
Polar Zones
These zones show areas covered by the IMO’s Polar Code, which regulates operations in polar waters.
💡 Tip: Click a zone to learn more about applicable rules.
Sea Ice
Displays current sea ice conditions.
Updated daily from NSIDC
💡 Tip: Useful for planning safe routes in cold regions.
Canals
Highlights major canals and their operational restrictions.
💡 Tip: Click a canal to view details such as limitations and requirements. You may need to zoom in to see this layer clearly.
Exclusive Economic Zones (EEZ)
Shows the EEZ boundaries for different countries.
Filter by specific countries if needed
Click a zone to view more information
Load Lines
Indicates seasonal load line zones.
💡 Tip: Click a zone to see date-specific deadweight restrictions.
Anti-Shipping Activity
Highlights areas where incidents have occurred in the past 365 days.
💡 Tip: Click on an area to view incident details.
War Zones
Enabling this layer will illuminate regions that pose a high risk for navigation or are designated as conflict zones.
💡 Tip: Click a zone to view its name and risk classification.
Wind Farms
Shows offshore wind farms.
💡 Tip: Click a wind farm to see its name.
Congratulations! 🎉
You now know the meaning of map layers in ShipAtlas!









