Proposal to establish uniform provisions concerning the approval of M2 and M3 vehicles to assist in the prevention of children being left inside.
This regulation applies to Special Purpose Vehicles of Categories M2 and M3, class B and III designed specifically for the carriage of children. Vehicles shall be equipped with a physical inspection system engaged when the vehicle master control switch is turned off and disarmed via an inspection confirmation device located behind the rearmost passenger seat. An external visual and audible warning must be generated within 3 minutes for buses not exceeding 22 passenger seats, or within 5 minutes for buses exceeding 22 passenger seats, if the system is not disarmed. The visual warning shall remain on for at least 15 seconds, then remain off for no greater than 30 seconds, repeating in cycles lasting no less than 10 minutes. The audible warning shall be greater than 60 dB(A) with the same cycle requirements. Conformity of production procedures shall comply with Schedule 1 E/ECE/TRANS/505/Rev.3, with suitable controls checking dimensions and quality procedures.
The UN IWG for Children Left in Vehicles is in Phase 2 developing a new UN Regulation for vehicle categories M2 and M3. The draft UN Regulation includes requirements for visual and audible external warnings in buses and coaches to prevent children being left inside. The external warning shall be visual and audible, with the visual warning remaining on for at least 15 seconds then off for no greater than 30 seconds, repeating in cycles lasting no less than 10 minutes, using type approved direction indicator lamps all flashing with the same frequency. The audible warning shall remain on for at least 15 seconds then off for no greater than 30 seconds, repeating in cycles lasting no less than 10 minutes, and shall be greater than 60dB(A). Both warnings shall stop immediately after the physical inspection system is disarmed or the vehicle master control switch is turned on. The IWG intends to permit audible devices approved to UN Regulation No. 28 or UN Regulation No. 165 to generate the external audible warning.
The Children Left in Vehicles Informal Working Group holds its 19th session on 23 July 2026 from 17:00 to 19:00 Australian Eastern Standard Time online. The agenda includes feedback on drafting a UNR for light vehicles and consideration of a September face-to-face meeting in Paris.
Proposal to amend Annex 3 and Annex 7 regarding ASEP calculations and temperature corrections:
Proposal to establish uniform provisions for approval of electric powertrain retrofit system installation on vehicles of categories M1–M3 and N1–N3:
Proposal to amend para. 2.9. to define ISOFIX position as a position that satisfies the requirements of this Regulation to allow the installation of ISOFIX child restraint systems as defined in UN Regulation No. 44 and UN Regulation No. 129, amend para. 2.24. to define i-Size seating position as a seating position that satisfies the requirements defined in this Regulation to allow the installation of i-Size child restraint systems as defined in UN Regulation No. 129, amend para. 5.2.2.7. to exclude i-Size seating positions and low ISOFIX anchorages installed in vehicles of category M2 or M3 from the requirements of para. 5.2.2.6., amend para. 5.2.4.1. to provide that marking requirements do not apply to vehicles of category M2 and M3, and amend para. 6.2.5.1. to provide that for vehicles in categories M2 and N2 the force shall be 10 times the mass of relevant parts of the seat and for categories M3 and N3 it shall be 6.6 times the mass of relevant parts of the seat.
The 22nd ADS IWG session will be held in central Sydney, Australia, from 6-9 October. The meeting facility will be confirmed soon.
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