But be careful, because there are two configurations for lateral marks, called Region A and Region B, as defined by IALA. In Region A (Europe, Greenland, Afric

But be careful, because there are two configurations for lateral marks, called Region A and Region B, as defined by IALA. In Region A (Europe, Greenland, Africa, most of Asia, most of Oceania) port marks are red and starboard marks are green. In Region B (North and South America, Japan, South Korea, Philippines, Taiwan) port marks are green and starboard marks are red.