 There are no international conventions on flying the flag, but protocol adopted by a large number of countries have such similarities as to suggest lines of commonly accepted practice. In general two areas of exposure are identified: national and international events. In both cases it is generally followed practice that national flags displayed in a group should be of equal size and each hoisted on its own flagstaff, of equal height, or on separate ropes if fixed on yardarm. The flag is flown from sunrise to sunset, except in case of bad weather; exhibition at night is permitted provided it is adequately illuminated. The flag is raised and lowered vividly and with solemnity; it is always treated with dignity and should never be allowed to touch the ground or water. Vertical hoist is transformationally identical to horizontal hoist (i.e. the flag is rotated 90 degrees).
