Full dress uniform

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Western dress codes and corresponding attires
Formal (full dress)   White tie  Morning dress  Full dress uniform Frock coat  Evening gown  Ball gown
Semi-formal (half dress)   Black tie  Black lounge suit   Mess dress uniform Evening gown  Cocktail dress
Informal (undress, "dress clothes") Suit  Service dress uniform Cocktail dress  Pantsuit
Casual (anything not above) Business casual Casual Friday Combat uniform Smart casual Workwear Streetwear Sportswear known as Sportswear (fashion) and Athleisure Undress
Supplementary alternatives Ceremonial dress law courts royal courts diplomatic academic, etc. Religious clothing cassock, habit, etc. Folk costume Distinctions Orders medals, etc.
Legend: = Day (before 6 p.m.) = Evening (after 6 p.m.)     = Bow tie colour = Ladies = Gentlemen Fashion portal
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Full dress uniform, also known as a ceremonial dress uniform or parade dress uniform, is the most formal type of uniforms used by military, police, fire and other public uniformed services for official parades, ceremonies, and receptions, including private ones such as marriages and funerals. Full dress uniforms typically include full-size orders and medals insignia. Styles tend to originate from 19th century uniforms, although the 20th century saw the adoption of mess dress-styled full-dress uniforms. Designs may depend on regiment or service branch (e.g. army, navy, air force, marines). In Western dress codes, full dress uniform is a permitted supplementary alternative equivalent to the civilian white tie for evening wear or morning dress for day wear – sometimes collectively called full dress – although military uniforms are the same for day and evening wear. As such, full dress uniform is the most formal uniform, followed by the mess dress uniform.

Although full dress uniforms are often brightly coloured and ornamented with gold epaulettes, braids, lanyards, lampasses, etc., many originated in the 18th and early 19th centuries as normal styles of military dress that, with the adoption of more practical uniforms, were eventually relegated to ceremonial functions. Before World War I, most armed forces of the world retained uniforms of this type that were usually more colourful and elaborate than the ordinary duty (known as undress), or the active service dress uniform.^[1]

While full dress uniform is predominantly worn at occasions by commissioned officers and senior non-commissioned officers, it may also be worn as optional wear at personal expense by enlisted personnel on occasions such as weddings. It is also sometimes worn by members of royal courts, orders of chivalry or certain civilian uniformed services, although some of the latter may resemble court uniforms.