The right to vote and to be elected, at least at the national level, is often subject to the condition of nationality. It is for the domestic law of each state to determine who, and who is not to be considered its national under its own law. The conferral of nationality is in the reserved domain (domaine réservé) of states. For all internal purposes, the determination of a person’s nationality will be made only according to domestic law. As the ICJ put it in the Nottebohm judgment: “[I]t is for every sovereign State, to settle by its own legislation the rules relating to the acquisition of its nationality, and to confer that nationality by naturalization granted by its own organs in accordance with that legislation.”