Washington, District of Columbia (or simply Washington, DC) is the capital city of the United States of America.
Season 1[]
When Captain David Aceveda and Moses Hernandez asked Detective Terry Crowley to testify against Vic Mackey, he asked for a job at the Department of Justice offices in Washington in exchange. Hernandez told him he would look into it.
Season 7[]
When Vic Mackey was trying to close his deal with Immigration and Customs Enforcement through Olivia Murray, she told him that the deal had to be authorized through their offices in Washington, DC.