Which congressional body was established in 2016 to organize the United States' 250th anniversary?

The United States Semiquincentennial Commission was established in 2016 to organize the United States' 250th anniversary.

The commission is a congressional, nonpartisan organization associated with America250, the national initiative for the 2026 observance. Its work connects public celebrations with the history of the Declaration of Independence and the founding of the United States.

The commission's name uses “semiquincentennial,” a term for a 250th anniversary. Other labels appear in public discussion, including Bisesquicentennial, Sestercentennial, and Quarter Millennium, but the commission's formal name is the United States Semiquincentennial Commission.

It is distinct from the American Revolution Bicentennial Commission, which coordinated preparations for the 200th anniversary in 1976. The 2016 commission was created decades later for the 2026 milestone, making it the principal congressional body associated with America250.