 "Project partners" included the Federal Highway Administration and the Federal Transit Administration, cities of Vancouver and Portland, the Southwest Washington Regional Transportation Council, Metro, and transit agencies C-Tran and TriMet.Other agencies were involved as part of "task forces," but the project was blocked July 2013 by Republican opposition within the Washington State Senate.A draft environmental impact statement (EIS) was published in May 2008, with a final EIS published in the Federal Register on September 23, 2011.