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

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William Henry Powell’s painting of the Discovery of the Mississippi by De Soto
William Henry Powell’s dramatic and brilliantly colored canvas was the last of...

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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 the U.S. Capitol Building, West Front, Early April 2014.
A multi-phased project designed to address deferred maintenance, extend the...

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Earth Day Celebration at the U.S. Botanic Garden
Join the United States Botanic Garden for an Earth Day Celebration on the...

Contact the OIG

Contact the OIG

Contact the AOC Office of Inspector General by the web, phone or mail.

By E-Mail:  Hotline@aoc-oig.org
By Mail:  
Architect of the Capitol
Office of Inspector General
499 South Capitol Street, SW, Suite 518
Washington, DC 20515
By Phone:   (202) 593-1948
By Fax:  (202) 593-0055
OIG Hotline Report: 
(202) 593-1067 (Commercial)
(877) 489-8583 (Toll Free)
Confidential Hotline Email:  Hotline@aoc-oig.org
OIG Investigations:
Paul Clark
(202) 593-1943
OIG Audits:
H. Vance Haney
(202) 593-0261