Draft report of the 33rd meeting of the GRE Taskforce on Autonomous Vehicle Signalling Requirements held on 7 September 2026. The taskforce discussed ADS marker lamps, including a draft proposal for a hybrid regulation, research results from Korea on V2H communication systems, and a presentation by Japan. Key discussion topics included the allowance for substitution of front position lamps and DRLs by ADS marker lamps, lateral ADS marker lamp signalization for trucks, approval marking labels, and visibility angles for side ADS marker lamps. The taskforce agreed to conduct editorial work on the proposal on 16 September and hold a finalizing meeting on 22 September to prepare an informal document for GRE-95 in October.