m
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or 100 nm from the 2,500-m deep isobath

Malawi
none (landlocked)

Malaysia
territorial sea: 12 nm
exclusive economic zone: 200 nm
continental shelf: 200-m depth or to the depth of exploitation;
specified boundary in the South China Sea

Maldives
measured from claimed archipelagic straight baselines
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm

Mali
none (landlocked)

Malta
territorial sea: 12 nm
contiguous zone: 24 nm
continental shelf: 200-m depth or to the depth of exploitation
exclusive fishing zone: 25 nm

Marshall Islands
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm

Mauritania
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or to the edge of the continental margin

Mauritius
territorial sea: 12 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or to the edge of the continental margin

Mayotte
territorial sea: 12 nm
exclusive economic zone: 200 nm

Mexico
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or to the edge of the continental margin

Micronesia, Federated States of
territorial sea: 12 nm
exclusive economic zone: 200 nm

Midway Islands
territorial sea: 12 nm
exclusive economic zone: 200 nm

Moldova
none (landlocked)

Monaco
territorial sea: 12 nm

Mongolia
none (landlocked)

Montenegro
territorial sea: 12 nm
continental shelf: defined by treaty

Montserrat
territorial sea: 3 nm
exclusive fishing zone: 200 nm

Morocco
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200-m depth or to the depth of exploitation

Mozambique
territorial sea: 12 nm
exclusive economic zone: 200 nm

Namibia
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm

Nauru
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm

Navassa Island
territorial sea: 12 nm
exclusive economic zone: 200 nm

Nepal
none (landlocked)

Netherlands
territorial sea: 12 nm
exclusive fishing zone: 200 nm

Netherlands Antilles
territorial sea: 12 nm
exclusive fishing zone: 12 nm

New Caledonia