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

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Black and white picture of Frederick Law Olmsted  best known for designing the grounds of New York City’s Central Park, the U.S. Capitol in Washington, D.C., the Biltmore Estate in North Carolina, and the 1893 World’s Columbian Exposition in Chicago.
Regarded as the founder of American landscape architecture, Frederick Law...

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A view of the Capitol Visitor Center lit up at night
The Office of Congressional Accessibility Services (OCAS) provides a variety...

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AOC Gardener at the U.S. Botanic Gardener handling some orchids
Information about working for the Architect of the Capitol:

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Detailed view of Piper nigrum plant
Learn how pepper, allspice, cinnamon, cloves and nutmeg became a part of our...

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...
     
  • AOC gardeners care for the grounds of the Capitol Building, the Congressional Office Buildings, the U.S. Supreme Court, the Library of Congress and the U.S. Botanic Garden.
    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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