Proposal to amend UN R153 to account for vehicles of category X and Y equipped with an Automated Driving System. The Regulation, originally drafted for vehicles with driver and manual driving controls, is extended to vehicles without driver and without manual driving controls inside the vehicle. Provisions related to driver and manual driving controls shall not apply if not already covered by this amendment. In manual driving mode, no special provisions apply. In a mode where an ADS feature is active, relevant ADS requirements apply.