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What are Load Lines
Load line is a special marking positioned amidships of the vessels which depicts the draft of the vessel and the maximum permitted limit in distinct types of waters to which the ship can be loaded.
S = Summer, W = Winter, T = Tropical, F = Fresh water and TF = Tropical Freshwater.
It influence the cargo intake of a vessel and the different zones changes during a year as described in the table below and in the load line map of Maritime Optima.
In the 1966 Load Lines convention, adopted by IMO, provisions are made determining the freeboard of ships by subdivision and damage stability calculations. The regulations take into account the potential hazards present in different zones and different seasons.
The International Navigating Limits (INL), formerly Institute Warranty Limits (IWL), were revised and renamed by the Institute of Chartered Underwriters in London, United Kingdom, in 2000 and became effective in November 2003.
The term IWL is still found in charter parties and related documents and should be updated to refer to INL because there are significant changes in some areas.
The lWL zones are:
How to see Load Lines limits on the map
You can check different zones in the Load Line Map layer in Maritime Optima. This filter may be found in the menu on your right side, Map Layers icon.
If you use Maritime Optima as a mobile app, you can also use Load Lines as an additional layer. Just go to the bottom menu and choose Map Styles from there.
To find the information about different areas, click at the areas you are interested in.
After you started to work with map layers, here are some tips for you what to do next:
Read next: learn about Global Sulphur regulations in your ShipAtlas app
Check out this video to see how to use map layers in the app
Study our User guide to learn how to set up different features in ShipAtlas and try them out
Check out the Pricing Page, so you know what Plan fits best to your needs.
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Read next: Global Sulphur regulations