<Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2014) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2014) (Learn how and when to remove this template message) </Td> </Tr> <P> The Marine Corps dress uniform is an elaborate uniform worn for formal or ceremonial occasions . Its basic form of a blue jacket with red trim dates back to the 19th century . It is the only U.S. military uniform that incorporates all three colors of the U.S. flag . There are three different variations of the Dress uniform: Evening Dress, Blue Dress, and Blue - White Dress; only officers and staff non-commissioned officers (SNCOs) are authorized to wear the Evening Dress . Until 2000, there was a White Dress uniform, similar in appearance to the U.S. Navy's Dress White uniforms, but worn by officers only (in a manner similar to that of the Dress White uniforms worn in the U.S. Coast Guard). This uniform has since been replaced with the Blue / White Dress uniform for officers and SNCOs . </P> <P> The most recognizable uniform of the Marine Corps is the Blue Dress uniform, often seen in recruiting advertisements . It is often called "Dress Blues" or simply "Blues". It is equivalent in composition and use to civilian black tie . The various designations are listed in descending order of formality: </P>

When did the marine corps adopt the dress blue uniform