Whenever any such caboose cars or other cars in use on April 21, 1911, by such common carriers as provided by section 1 of this chapter shall, after April 21, 1911, be brought into any shop for general repairs, it shall be unlawful to again put the same into the service of such common carrier within this state unless it be equipped as provided in section 2 of this chapter.
IC 8-8-7-3