To obviate the need for a judicial or arbitral decision to fill these gaps when they arise and to reduce the number of potential disputes, States usually provide for basic characterization rules.
为避免在出现这些情况时必须通过司法裁决或仲裁裁定来填补这些空白，减少潜在纠纷的数目，各国通常规定了一些基本的定性规则。