# The Public Health (Aircraft) Regulations 1979, Regulation 20


On the arrival of an aircraft at a customs airport, the medical officer may place under surveillance for the appropriate period specified in regulation 30(1)—
(a) any person disembarking from the aircraft who has come from an infected area other than an area infected with yellow fever or plague, and
(b) any suspect disembarking from the aircraft who has come from an area infected with yellow fever, plague, lassa fever, viral haemorrhagic fever or marburg disease.

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Source: https://www.legislation.gov.uk/uksi/1979/1434/regulation/20 (the official version)
Page: https://openlegislation.uk/public-health-aircraft-regulations-1979/regulation-20
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.