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

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The Old Supreme Court Chamber is the first room constructed for the use of the nation's highest judiciary body and was used by the Court from 1810 until 1860. Built by Benjamin Henry Latrobe, it was a significant architectural achievement, for the size and structure of its vaulted, semicircular ceiling were virtually unprecedented in the United States.
The Old Supreme Court Chamber is the first room constructed for the use of the...

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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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An AOC worker mowing the grass on the grounds of the U.S. Capitol
The roles and responsibilities of the Architect of the Capitol cover an...

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U.S. Marine Band - Wednesday and some Thursday Evenings
U.S. Marine Band - Wednesday and some Thursday Evenings - The 2014 series of...

Office of Security Programs

West Front of the U.S. Capitol with a clear blue sky in the background

The AOC Office of Security Programs (OSP), led by Ken Eads, is responsible for the maintenance, care and operation of the buildings, grounds and security enhancements of the U.S. Capitol Police (USCP) and other related facilities. OSP is also responsible for centralized security operations. The AOC oversees and supports the USCP and other functions for policing, protecting and securing the congressional community and its visitors.

This office is responsible for the delivery of unique, value-added, integrated support services that include all cross-jurisdiction security enhancements, the management of all AOC internal security programs and perimeter security kiosks and the coordination of interagency emergency preparedness.