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

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Senators sitting in two story Senate Chamber.
The Senate Chamber is a rectangular, two-story room located in the center of...

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View of the U.S. Capitol Building from above at dusk
In order to ensure the safety of visitors and staff and to preserve the...

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Painted portrait of Dr. William Thornton
The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Car of History Clock in the U.S. Capitol’s National Statuary Hall.
Ivestigate the meaning behind the Car of History Clock in the U.S. Capitol’s...

AOC Congressional Testimony

AOC Congressional Testimony

Photo of a Capitol Power Plant chiller that's reaching the end of its life expectancy.

Fiscal Year 2016 Appropriations

With the support of Congress, the Architect of the Capitol (AOC) is a strong steward of the buildings and grounds that comprise Capitol Hill. The incredibly talented and skillful employees of the agency care for facilities that are decades and even centuries old — buildings that were constructed without the modern equipment and efficiencies we now take for granted.

There is much work to be done, but we believe that there is no greater mission than upholding the historic buildings entrusted to our care. The American people and future generations are counting on us to work together to invest the necessary resources to sustain the treasures of Capitol Hill.

The AOC's written statements by Stephen T. Ayers to:

Budget Testimony Photos: