Article 20
Access to the Tribunal
1. The Tribunal shall be open to States Parties.
2. The Tribunal shall be open to entities other than States Parties in any case expressly provided for in Part XI or in any case submitted pursuant to any other agreement conferring jurisdiction on the Tribunal which is accepted by all the parties to that case.
Article 21
Jurisdiction
The jurisdiction of the Tribunal comprises all disputes and all applications submitted to it in accordance with this Convention and all
matters specifically provided for in any other agreement which confers jurisdiction on the Tribunal.
Article 22
Reference of disputes subject to other agreements
If all the parties to a treaty or convention already in force and concerning the subject-matter covered by this Convention so agree, any disputes concerning the interpretation or application of such treaty or convention may, in accordance with such agreement, be submitted to the Tribunal.
Article 23
Applicable law
The Tribunal shall decide all disputes and applications in accordance with article 293.