Pratique in general parlance is the permission granted to a ship to have dealings with a port, after quarantine or on showing a clean bill of health. In the shipping industry, it is a certificate from the port-healthauthorities that the ship is without infectious diseases or plague on board and therefore, should be permitted to enter port and to allow people to board or disembark. Such permission is usually under the authority of medical/ health officers situated around the port of entry in apprehension of ships from other territories carrying contagious diseases on board among crew members or passengers.
However, if the ship is carrying any serious infectious illness on board or has arrived from a place where such illness is known to be widespread, then the ship may have quarantine restrictions imposed upon her and may not get the clean bill of health for entry to the port for carrying out intended operations.
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