49er Class personal sail numbers will be issued each calendar year (Jan 1-Dec 31) based on first-come/first-served basis. Once a number has been issued, it will remain with the sailor as long as he continues to renew the number annually through the Class office. All sailors who wish to compete in World Championships, Continental Championships, ISAF World Cup Events, and Eurocup events, must get themselves a personal sail number from the class office.
Country Code – Flags
Per Class Rules (see below), all boats must carry their country flag on the mainsail. Flags must be ordered through the 49er e-store (just 1 flag per boat is necessary).