There shall be a system of highways known as the "Secondary State Highway System" which shall consist of all existing or proposed highways designated on a map entitled "Secondary State Highway System, 1945," prepared by the commissioner and filed in the office of the secretary of state.
Source. 1945, 188:1, part 1:3. RSA 230:3. 1981, 87:1, eff. April 20, 1981.