An act relating to public highways; creating and establishing, describing and designating additions to the Primary State Highways of the State of Washington; eliminating certain Secondary State Highways from the Secondary State Highway System; amending sections 2, 3 and 12, chapter 207, Laws of 1937 (sections 6402-2, 6402-3 and 6402-12, Remington's Revised Statutes, Volume 7A); and declaring an emergency and that this act shall take effect April 1, 1943.