The court discusses issues relating to the quality of the parties, as physical or legal persons against whom enforcement of an arbitral award is sought, including the incapacity of a State to enter into an arbitration agreement, and questions relating to sovereign immunity. For the related defenses to enforcement, see Art. V(1)(a).

The court discusses the relevance and determination of the commercial nature of the relationship underlying the award, including in the context of contractual and non-contractual relations.

The court discusses how to interpret the Convention’s requirement that the agreement is not null and void etc., as well as specific cases of invalidity: e.g., lack of consent (misrepresentation, duress, or fraud), vague wording of the arbitral clause; other terms of the contract contradict the intention to arbitrate, etc.

The court discusses whether a certain dispute could be settled by arbitration, and the law applicable to that determination.

The court discusses this general reciprocity clause, which was inserted in the Convention to remedy the absence in the commercial reservation (Art. I(3)) of a federal-state clause allowing Contracting States not to apply the Convention to awards made in a constituent state or province of a Contracting State which was not bound to apply the Convention.