Text prepared by the Russian Federation and the International Motor Vehicle Inspection Committee (CITA) to align the provisions of Rule No. 1 with Rule No. 2, the latest UN Regulations, and with EU Directives. The draft amendments concern: (i) harmonization of the structure of the Rule No. 1 with Rule No. 2 (Roadworthiness), (ii) introduction of vehicle categories M1 and N1 and trailer categories O2, O3 and O4, and (iii) introduction of inspection methods, defect assessment and current state of practices.