The aim of this article is to consider the extent to which the exercise by a port State of jurisdiction over foreign ships in relation to safety and the prevention of pollution is extra-territorial in nature. This aim is pursued by addressing two main issues. The first is the question of whether a port State may prescribe and enforce measures relating to the construction, design, equipment and manning of ships (including measures that go beyond international (International Maritime Organization) standards) in respect of foreign ships calling at its ports; and if so, whether that involves an element of extra-territorial jurisdiction. The second issue is the question of how far a port State may exercise jurisdiction over the conduct of foreign ships relating to shipping safety and the prevention of pollution before such ships enter its ports, and whether that is an exercise of extra-territorial jurisdiction.

中文翻译：

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与航运安全和船舶污染有关的港口国管辖权——什么程度的域外法权？

本条的目的是考虑港口国对外国船舶在安全和防止污染方面的管辖权在多大程度上具有域外性质。通过解决两个主要问题来实现这一目标。第一个问题是港口国是否可以对停靠其港口的外国船舶规定和执行与船舶建造、设计、设备和人员配备有关的措施（包括超出国际（国际海事组织）标准的措施）。 ; 如果是，这是否涉及域外管辖权的要素。第二个问题是在外国船舶进入其港口之前，港口国可以在多大程度上对外国船舶与航运安全和防止污染有关的行为行使管辖权，