173. The experimental preventive maintenance programs certified by the Société de l’assurance automobile before 24 December 1998 are exempted from the certification under Chapter I.1 of Title IX of the Highway Safety Code (chapter C‐24.2) but are subject to the other provisions of that chapter and to the regulatory provisions made for the application of the programs. Programs in respect of which no decision on an application for certification has been made before the date mentioned in the first paragraph are subject to the provisions of that chapter.