The Embassy of Canada in Washington, D.C. is Canada's main diplomatic mission to the United States. The embassy building designed by Arthur Erickson and opened in 1989 is located at 501 Pennsylvania Avenue Northwest, Washington, D.C., between the United States Capitol and the White House, just north of the National Gallery of Art. In addition to its diplomatic role, the embassy provides consular services for Delaware, Washington, D.C., Maryland, Virginia, and West Virginia. It also hosts a Trade Commissioner Service office responsible for the states of Maryland, Washington, D.C., Virginia, and West Virginia.