Quarantine Edinburgh and Leith, grain was from that date declared to be a non-susceptible article. About 1788 an order of the council required every ship liable to quarantine, in case of meeting any vessel at sea, or within four leagues of the coast of Great Britain or Ireland, to hoist a yellow flag in the daytime and show a light at the main topmast head at night, under a penalty of After 1800, ships from plague-countries (or with foul bills) were enabled to perform their quarantine on arrival in the Medway instead of taking a Mediterranean port on the way for
Flag protocol ceremonial flypast, a flag is flown from a weighted rope dangling from beneath a helicopter. Members of the royal family and the nobility each have their own flags. The Standard of the Sultan must be flown only over Istana Nurul Iman. The same goes for the Crown Prince (Deputy Sultan)'s flag, but other non-royal title holders fly the national flag. As in many other countries, Bruneians consider it taboo for the flag to touch the ground. When a French vessel meets another French ship, it is to lower and raise its ensign as a greeting. A merchant ship meeting a