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 of Norway Norwegian government's web pages. However, Norwegian flag producers consider this red colour to be incorrect, and have complained that the Norwegian state propagates what they perceive as misinformation. Norwegian authorities have clarified that the red colour is only an internal recommendation intended specifically for screen printing, and not a legal definition. Flag producers normally use the red colours 186 or 200. The Nordic Council currently defines the red colour as "Pantone 186 C" and the blue as "Pantone 287", according to the Nordic Flag Society Four years ago the same website mentioned the blue colour as "Pantone 301". On page