229:4 Secondary System. – 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.
New Hampshire Legal Code