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

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

Guernsey
territorial sea: 3 nm
exclusive fishing zone: 12 nm

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

Guinea-Bissau
territorial sea: 12 nm
exclusive economic zone: 200 nm

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

Haiti
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: to depth of exploitation

Heard Island and McDonald Islands territorial sea: 12 nm exclusive fishing zone: 200 nm

Holy See (Vatican City)
none (landlocked)

Honduras
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: natural extension of territory or to 200 nm