San Marino
none (landlocked)

Sao Tome and Principe
measured from claimed archipelagic baselines
exclusive economic zone: 200 NM
territorial sea: 12 NM

Saudi Arabia
contiguous zone: 18 NM
continental shelf: not specified
territorial sea: 12 NM

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

Serbia and Montenegro
NA

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

Sierra Leone
contiguous zone: 24 NM
continental shelf: 200 NM
exclusive economic zone: 200 NM
territorial sea: 12 NM

Singapore
exclusive fishing zone: within and beyond territorial sea,
as defined in treaties and practice
territorial sea: 3 NM

Slovakia
none (landlocked)

Slovenia
NA