The Secretary of State may from time to time give written notice to the owners or agents of any ships or aircraft designating control areas for the disembarkation or embarkation of passengers in any port in the United Kingdom and specifying the conditions and restrictions (if any) to be observed in any control area; and where by notice given to any owners or agents a control area is for the time being so designated at any port, the owners or agents shall take all reasonable steps to ensure that, in the case of their ships or aircraft, passengers do not disembark or, as the case may be, embark at the port outside the control area and that any conditions or restrictions notified to them are observed.

The Secretary of State may also from time to time give to any persons concerned with the management of a port in the United Kingdom written notice designating control areas in the port and specifying facilities to be provided and conditions and restrictions to be observed in any control area; and any such person shall take all reasonable steps to secure that any facilities, conditions or restrictions notified to him are provided or observed.

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