The Architect of the Capitol is both the name of the U.S. legislative branch agency responsible for the maintenance of the Capitol campus and the title for the leader of the agency.

Office of the Architect

The OA provides an enterprise perspective and vision for the AOC and helps the agency navigate legal, political and regulatory requirements and challenges.

Office of the Chief Administrative Officer

The OCAO provides administrative and business support for the Architect of the Capitol.

Office of the Chief Engineer

The OCE oversees long-range facility planning, architectural and engineering design, historic preservation and project, program and construction management.

Office of the Chief Financial Officer

The OCFO manages the financial needs of the operational jurisdictions and central services.

Office of the Chief of Operations

The OCO oversees the operational jurisdictions that help fulfill the Architect of the Capitol's mission.

Office of the Chief Security Officer

The OSCO is responsible for the maintenance, care and operation of the buildings, grounds and security enhancements of the U.S. Capitol Police and more.

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History & Discoveries

Allyn Cox: An Artist's Materials

The AOC Curator Division maintains a small collection of objects related to Cox's work, representing project material left during his design and painting of the House corridors in the 1970s.
Public Notice

Celebrate America 250 at the U.S. Capitol

Join us July 2-4, 2026, for our celebration! From 9:30 a.m.-3:30 p.m. we will have free family-friendly events, interactive experiences and lots of patriotic fun.

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