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Ensign of the United States

United States of America
Flag of the United States (Pantone).svg
Names The Stars and Stripes, Old Glory
Use National flag and ensign
Proportion 10:19
Adopted

June 14, 1777 (13-star version)

July 4, 1960 (50-star version)
Design Thirteen horizontal stripes alternating red and white; in the canton, 50 white stars on a blue field
Designed by Unknown, possibly Francis Hopkinson

June 14, 1777 (13-star version)

The ensign of the United States refers to the flag of the United States when worn as an ensign (a type of maritime flag identifying nationality, usually flown from the stern of a ship or boat, or from an installation or facility of the United States Navy, United States Marine Corps, United States Coast Guard or the National Oceanographic and Atmospheric Administration ashore). International maritime law—see International Treaty on Law of the Sea, articles 91 and 92—provides that vessels have a national character and thus should display a flag (ensign) that corresponds to this national character, especially when in international or foreign waters. Vessels that are formally documented under the federal vessel documentation act, vessels owned by government bodies in the United States, and vessels in the US armed forces unquestionably have US national character, and thus properly hoist a U.S. ensign to show their national character. Vessels that are numbered by the states (see 46 U.S.C. section 411) and small, non-registered craft owned by American citizens and not registered in other countries may also hoist a U.S. ensign to show their national character.

The US Yacht Ensign (a variation of the national ensign; see below) is often used in place of the national flag by US pleasure craft when operating within US waters; this flag was legally required for licensed yachts from 1848-1980, and the practice continues among all US pleasure craft in US waters by longstanding historical use and custom. Additionally, a few smaller pleasure craft operated by members of the US Power Squadrons will fly the US Power Squadrons flag as an ensign in inland waters in lieu of the national flag (see below). All vessels of U.S. national character should display the national ensign when operating in international and non-US waters.

The Grand Union Flag was the de facto first U.S. naval ensign. It was first raised aboard Continental Navy Commodore Esek Hopkins' flagship Alfred on the Delaware River on December 3, 1775; John Paul Jones, then the ship's senior lieutenant, personally claimed this honor.


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