Serving Congress and the Supreme Court, preserving America's Capitol, and inspiring memorable experiences

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Thomas Jefferson Building
The Library of Congress began in 1800 with a small appropriation to buy...

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Capitol Visitor Center
The Office of Congressional Accessibility Services (OCAS) provides a variety...

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East Front of the U.S. Capitol Building
AOC’s annual Performance and Accountability Report provides the results of the...

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Orchid Symphony at the U.S. Botanic Garden
From February 22 through April 27, the U.S. Botanic Garden will feature...

Projects

The AOC is responsible for the care and maintenance of more than 17 million square feet of buildings and 460 acres of grounds. Many of these structures are more than a century old and their constant upkeep is critical as they are working office buildings of the Congress and the Supreme Court. While some projects are highly visible, such as the restoration of the Capitol Dome; many are unseen, such as modernization of plumbing and electrical systems or refurbishment of offices.

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