Presentation from CATARC proposing improvements to the test procedures under UN R28.

Proposal to

1. harmonize the definitions of v_BB’ in UN R51
2. clarify the scope of Annex 1, Appendix 2, paragraph 5 by substituting “Running” for “Suspension” to describe the system addressed
3. clarify the procedures for particular cases under Annex 3.

Proposed revisions to the Annex 3 test procedures and interpretation of resulting data. This is based upon informal document GRB-56-06.

Proposal to change the date of compliance for category N1 or for vehicle types of category M1 derived from N1

CATC Data Study and Measurement Methods Research

Additional supporting arguments for the proposal to modify the photometric performance requirements of front position lamps integrated with front fog lamps and of rear position lamps integrated with rear fog lamps (analogous to the treatment of position lamps integrated into headlamps).

Presentation concerning China proposal to clarify definitions concerning testing of “resistance to atmospheric agents”.

Proposal to enable the ‘reciprocal incorporation’ of front position lamps with front fog lamps for construction or style.

Proposal for an editorial correction to consistently use the term “daytime running lamp”, correcting alternatives “day-time running lamp” and “day time running lamp” identified in the text.

Proposal for amendments concerning the application of UN R48 to ADS vehicles.

Proposal to add VRU warning pattern requirements. Document presents data from accident databases showing pedestrian crossing conflicts represent the highest proportion of nighttime road accidents at approximately 32% with obstructions and 19% without. Limited visibility and restricted communication between drivers and VRUs necessitates an assistance function. A spotlight feature with a bright narrow beam pattern directed at hazardous VRUs, moving with the target and flashing to remind drivers while warning VRUs, received positive feedback from customer experience surveys

Proposal to replace “multiple separate light sources” with “multiple light sources” in the provision governing rear position lamps reciprocally incorporated with stop lamps.

Proposal to update the ‘resistence to atmospheric agents’ test by applying the spectral energy distribution of sunlight as defined in CIE Publication No. 85:1989, Table 4.

Proposal from China to modify the photometric performance requirements of front position lamps integrated with front fog lamps and of rear position lamps integrated with rear fog lamps (analogous to the treatment of position lamps integrated into headlamps).

Proposal to increase the maximum intensity limit for front position lamps in cases where front position lamps are reciprocally incorporated with front fog lamps.

Proposal to clarify the requirements of UN R10, especially with regard to CISPR Standard 12, IEC Standards 61000-3-3 and 61000-3-11, and ISO Standard 11451-2.

Proposal to develop additional provisions under GTR No. 16 to allow for its alignment with Chinese tyre regulations.

Marked up version of GTR 16 identifying different requirements between the GTR and China’s tyre regulations.

Proposal to correct a reference in the draft Supplement 11 to the 01 series of amendments to the “Test Area B defined in Annex 18”, which actually is meant to refer to Annex 21.

Frequent collisions between vehicle doors and approaching bicycles or motorcycles when a door is opened, causing injuries to riders and, in some cases, even fatalities. These collisions occur because drivers and passengers often fail to check for approaching vehicles before opening the door. The type of collisions are referred to as Dooring Accidents.

Door-opening collision accidents between motor vehicles and vulnerable road users occur frequently and pose serious risks to road traffic safety. No mandatory UN Regulation or Global Technical Regulation for Door Opening Warning Systems exists internationally, resulting in regional inconsistencies. A virtual kick-off workshop was held on 1 April with participation from contracting parties and stakeholders. The workshop reviewed accident data from Germany and China, discussed potential technical parameters for DOWS, and identified the need for broader international data collection. Further workshops are envisaged pending availability of substantive new input.

Status report on two workshops on Door Opening Warning Systems held virtually on 1 April 2026 and 2 September 2026. The first workshop presented accident data from Germany and China and conducted exploratory discussions on system parameters. The second workshop presented accident data from Germany, China, Belgium, the United Kingdom and France, and introduced draft regulatory text covering scope, definitions, signalling strategy, operational parameters, activation and deactivation, failure detection and test procedure. Comments were received from industry, cyclists’ organisations and Contracting Parties. The experts from China and Germany propose establishment of an informal working group on DOWS to develop proposals concerning justification and problem definition, scope and definitions, performance requirements, test and assessment procedures, and regulatory form.

Proposal to establish uniform provisions for type approval of vehicles of categories M₁ and N₁ equipped with a Door Opening Warning System (DOWS) intended to reduce the risk of collisions involving opening vehicle doors and approaching vulnerable road users. The system shall provide information signals indicating the presence of a dooring-related vulnerable road user in the detection area and door opening warning signals to alert occupants when a door opening attempt is initiated and collision risk is imminent. The Regulation specifies technical requirements including system availability, signalling requirements, failure indication, and test procedures for verification at type approval.