12NM Territorial Sea
The 12NM Territorial Sea dataset is consumed from an external ArcGIS web service via the following URL and ID
https://maritimeboundaries.noaa.gov/arcgis/rest/services/MaritimeBoundaries/US_Maritime_Limits_Boundaries/MapServer ID: 1
OpenLayers
If you are developing in OpenLayers, you will want to use the OpenLayers ArcGIS93Rest class. An example of your solution might look similar to the code below.
layer = new OpenLayers.Layer.ArcGIS93Rest( "12NM Territorial Sea", "https://maritimeboundaries.noaa.gov/arcgis/rest/services/MaritimeBoundaries/US_Maritime_Limits_Boundaries/MapServer/export", { layers: "show:1", transparent: true }, { isBaseLayer: false } ); map.addLayer(layer);