25. The semi-trailers in a type B double train measuring more than 23 m in length without exceeding 25 m and belonging to classes A.90 to A.95 under the Vehicle Load and Size Limits Regulation (chapter C-24.2, r. 31) shall have retroreflective strips in accordance with the Motor Vehicle Safety Act (S.C. 1993, c. 16). Notwithstanding the foregoing, the strips are not required at the rear of the first semi-trailer.