The Zoning Architecture of UNCLOS Frameworks
The United Nations Convention on the Law of the Sea (UNCLOS) establishes a series of distinct maritime zones extending outward from a coastal nation's legally defined baseline. As a vessel moves further from the coast, the coastal state's legal authority decreases through a tiered system of sovereignty:
- Internal Waters: Complete sovereignty — includes domestic bays, river mouths, ports, and coastal lagoons. Foreign vessels have no automatic right of passage.
- Territorial Sea (12 nautical miles): Extension of sovereign territory. The coastal state controls surface water, seabed, and airspace above, but foreign vessels retain the legal right of "innocent passage."
- Contiguous Zone (24 nautical miles): Enforcement buffer. The coastal state can police to prevent or punish infractions regarding customs, taxation, immigration, and sanitary laws.
- Exclusive Economic Zone — EEZ (200 nautical miles): The coastal nation holds exclusive economic rights over all natural resources — oil, gas, ocean mineral mining, fishing, and wind energy generation. Foreign states retain freedom of navigation and overflight.
Sovereign EEZ Reference Directory
| Coastal Nation | Bordering Oceans / Seas | Total EEZ Area (km²) | UNCLOS Ratification |
|---|---|---|---|
| United States of America | Pacific, Atlantic, Arctic Oceans | 11,351,000 | Signed / Not Ratified |
| France (inc. Territories) | Atlantic, Pacific, Indian Oceans | 11,691,000 | Ratified 1996 |
| Australia | Indian, Pacific, Southern Oceans | 8,505,348 | Ratified 1994 |
| Russia | Arctic, Pacific, Atlantic Oceans | 7,566,673 | Ratified 1997 |
| Canada | Arctic, Atlantic, Pacific Oceans | 5,599,077 | Ratified 2003 |
| Japan | Pacific Ocean, Sea of Japan | 4,479,358 | Ratified 1996 |
| India | Indian Ocean, Arabian Sea, Bay of Bengal | 2,305,143 | Ratified 1995 |
Landlocked Nations and Transit Rights
UNCLOS Part X grants landlocked countries an explicit right of access to and from the sea. Transit states located between a landlocked country and the coast must cooperate to provide free transit corridors. Landlocked nations are granted access to port infrastructures, and their commercial cargo cannot be subjected to discriminatory customs duties or special transit taxes by the host nation. This structural legal framework ensures that landlocked markets can participate in international maritime commerce on equal terms.
There are 44 landlocked countries in the world. Beelad's continent pages let you filter and identify them instantly alongside coastal nations.