Proposal for Supplement 1 to the 03 series of amendments to UN R125 (Forward Field of Vision). The supplement addresses vehicles of categories X and Y and vehicles equipped with an Automated Driving System. Vehicles of category Y are exempt from the Regulation’s scope. Vehicles of category X with manual driving modes have different requirements depending on operation type: remote control exempts from scope; seated operation applies general provisions; non-seated operation applies alternative provisions. Alternative requirements may be approved if manufacturer demonstrates equivalent safety level. New definitions include “Safety Concept.” References to UN R176 Field of Vision Assistant added.