Proposal for supplement 45 to UN R61 to amend the Regulation to account for vehicles of categories X and Y without driver, driver cab, and manual driving controls, as well as vehicles with manual mode operating at speeds above 6 km/h equipped with an Automated Driving System Feature of Type 2. The amendments modify definitions of external surface and cab rear panel, introduce definitions for ADSF-1 and ADSF-2, and specify that in modes where an ADS feature is active, basically the same requirements apply regarding external projections.