Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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A black and white photograph of the United States Capitol in 1846.
The history of the United States Capitol Building begins in 1793. Since then,...

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Snapshot of a crowd of people on a guided tour through the Rotunda of the U.S. Capitol
Official Tours of the U.S. Capitol Building are offered Monday through...

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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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Juan Sandoval and Jose Hernandez using a lewis to remove stones from Olmsted Terrace.
Addressing the stone pandemic across the Capitol campus takes a team of...

Due to its advanced age, the House of Representatives is in the early planning stages for a top-to-bottom renewal of the Cannon House Office Building. The AOC has assembled a team of in-house experts and consultants who are working with House leaders to define key aspects of the project. This initial effort will better define the estimated costs, scope of work, and potential timeline for the work. The AOC expects this initial planning to conclude in 2012. 

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