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)

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