bill of health
(general) A certificate issued by port or customs authorities attesting to the health of the crew and passengers of a vessel or airplane upon arrival or departure from the port.
(a) A clean bill of health is issued by authorities when no contagious disease(s) has been found,
(b) A suspected bill of health is issued when no contagious disease(s) has been found, but authorities fear that one may develop, and
(c) A foul bill of health is issued when a contagious disease has been found.
In the cases of issuance of a suspected bill of health or a foul bill of health, the vessel, airplane, or its passengers must enter a quarantine. See quarantine.