A range of different types of maritime zones.
- Initially the claims to the territorial sea were so limited( little consideration).
- Territorial sea claims expanded further into the oceans and new maritime zones were added, there was an increasing need to settle upon methods for maritime boundary delimitation.
- Firstly, in the case of adjacent states : to address how the adjoining territorial sea claims of these states would be delimited. Then continental shelf, fishing zone, EEZ