All institutes (institutions) in port shall maintain the port areas sanitary and safe, they shall implement or coordinate in implementing relevant sanitary measures.
The respective competent authorities shall supervise the implementation of the matters regulated in the preceding Paragraph.

Quarantine authorities, with a view to prevent communicable diseases from coming into, exiting out the country (boundaries), may in the port area or inside the conveyances, conduct vector surveys and sanitary control measures, relevant institutes (institutions), public and private enterprise institutions shall cooperate, and shall not obstruct, evade or refuse.

Ships navigating in international seas, when anchoring at port, shall take effective vector control measures, and at the same time, hang rat-guards. However, for irresistible reasons that hanging is not possible, this regulation does not apply.