When to Display a Courtesy Flag
A courtesy flag is displayed by a vessel when it is visiting or operating in the waters of another country. It is a sign of respect for the host nation and is especially common among recreational boaters, yachts, and commercial vessels.
When should you fly it?
- Upon entering foreign territorial waters: Hoist the courtesy flag as soon as practical after entering the country’s waters.
- While cruising or staying in port: Keep the courtesy flag displayed while operating in the host country.
- During daylight hours: Traditionally, courtesy flags are flown from sunrise to sunset, although local customs and marina rules may vary.
- Before clearing customs: In many countries, vessels fly a yellow Q (Quarantine) flag until they have completed required clearance procedures. After clearance, the courtesy flag is normally displayed.
- When visiting marinas or yacht clubs: Displaying the host nation's flag is a customary gesture of courtesy and is often expected by local boating communities.
Where is the courtesy flag flown?
For a typical sailing yacht, the courtesy flag is generally flown from the starboard spreader. On a powerboat, it may be flown from an appropriate staff or halyard on the starboard side.
Important: Courtesy-flag etiquette varies by country. Local maritime regulations, customs, and yacht-club traditions should always take precedence.