The Vulcan embassy was an embassy located on Earth in the 23rd century. In mid-2270s, Starfleet officer Commander Sonak was killed in a transporter accident while beaming up to the USS Enterprise. The Enterprise's commanding officer, Admiral James T. Kirk, asked Starfleet Command to send his condolences to Sonak's family, who could be reached through the Vulcan embassy. (Star Trek: The Motion Picture)