A State of nationality may not exercise diplomatic protection in respect of a person against a State of which that person is also a national unless the nationality of the former State is predominant, both at the time of the injury and at the date of the official presentation of the claim.
甲国的国民同时也是乙国的国民时，甲国不可针对乙国为该人行使外交保护，除非甲国在该人受损害时和正式提出求偿之日都是主要国籍国。