What is a Baseline?

• Internal waters,
• The territorial sea,
• The contiguous zone, and
• The exclusive economic zone (EEZ).

Internal waters :

All waters landward of the baselines (e.g. low-water line) and all harbours (Any law in force in the country, including the common law, shall also apply in its internal waters and the airspace above its internal waters. The right of innocent passage does generally not exist in the internal waters.)

Territorial Sea :

 The sea within a distance of 12 nautical miles (~22 km) from the baselines (Any law in force in the country, including the common law, shall also apply in its territorial waters and the airspace above its territorial waters. The right of innocent passage shall exist in the territorial waters. In the territorial sea, submarines and other underwater vehicles are required to navigate on the surface and to show their flag.)