District of Columbia

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About the U.S. Attorney

Ronald C. Machen Jr., USARonald C. Machen Jr., USA

Ronald C. Machen Jr. was nominated to serve as United States Attorney for the District of Columbia by President Barack Obama on December 24, 2009. Mr. Machen’s appointment was confirmed by the United States Senate on February 11, 2010. 

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about the District

The Office of the United States Attorney for the District of Columbia is unique among the 94 United States Attorney Offices across the nation by virtue of its size and its varied responsibilities. It is the largest United States Attorney's Office with over 350 Assistant United States Attorneys and over 350 support personnel. The size of this Office is the result of the breadth of our responsibility for criminal law enforcement and our location in the nation's capital.


Judiciary Center Building
555 Fourth Street, NW
Washington, DC 20530

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