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

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Howard Chandler Christy’s painting of the signing of the United States Constitution.
Howard Chandler Christy’s painting of the signing of the United States...

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A crowd of people visiting the Capitol during visitor hours
Please note: Many of these Capitol Hill buildings are working office buildings...

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Photo of Stephen T. Ayers, FAIA, LEED AP, Architect of the Capitol in front of the Capitol Building
On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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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...

Trades and Areas of Practice

  • The Architect of the Capitol (AOC) is responsible for the preservation and maintenance of the stone exterior of the U.S. Capitol as well as the exteriors of all of the other buildings on Capitol Hill.
    The Architect of the Capitol (AOC) is responsible for the preservation and...
     
  • USBG Worker
    AOC gardeners care for the grounds of the Capitol Building, the Congressional...
     
  • The Architect of the Capitol’s maintenance mechanics work around the clock to ensure the facilities are always performing to the best of their ability, supporting the building occupants and visitors.
    The Architect of the Capitol’s maintenance mechanics work around the clock to...
     
  • Across Capitol Hill AOC Electricians are responsible for thousands of miles of wiring and more than 100,000 light fixtures.
    Across Capitol Hill AOC Electricians are responsible for thousands of miles of...
     

Employees in various trades such as electricians, plumbers, masons, and carpenters maintain the facilities and infrastructure in optimal condition.

Gardeners and landscapre professionals create colorful displays and care for hundreds of acres of lawns and plantings. All of these efforts are directed at making the work of the Congress, the Supreme Court, and Library of Congress – and the experience of the millions of visitors annually – as smooth, efficient and enjoyable as possible.

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