Proposal to amend para. 5.10. and its sub-paragraphs to clarify provisions regarding light which could give rise to confusion, specifically to clarify that for red light reflected by a retro-reflector fitted on the rear or white light reflected by a retro-reflector fitted on the front, the same requirements apply as for other lamps, and to specify that when the lamp is a retro-reflector, the observer shall make use of a torch to check visibility within specified zones.

Proposal to amend para. 6.27.9.1. to allow an answer-back signal generated by the direction indicator lamp to be operated with a luminous intensity not exceeding its original specification, thereby excluding the direction indicator lamp from the 700 cd limitation on or above the HH line. The proposal aims to remove unnecessary restrictions on already type-approved light-signalling functions while maintaining technological neutrality and road safety.

Proposal to amend para. 6.27.9.1. to exclude direction indicator lamps and dipped-beam headlamps from the 700 cd luminous intensity limitation on or above the HH line when operated as answer-back signals, allowing these devices to operate with their original specifications, while maintaining prohibitions on front fog lamps, rear fog lamps, and stop lamps.

Proposal to amend para. 4.5.5. to permit the internal structure of optical components and the texture of the outer lens of a lamp to incorporate one manufacturer logo built by transparent or non-transparent components, subject to conditions: only the logo of the vehicle manufacturer or body manufacturer brand name is allowed; the enclosed light emitting surface of the logo shall not exceed 100 cm²; graphic marks, emblems, words, or combinations smaller than 5 cm² are not to be considered as a manufacturer logo; the logo light emitting surface does not have to be symmetrical; and stop lamps, direction indicator lamps, reversing lamps, and side-marker lamps shall not incorporate a logo unless the rearmost side-marker lamp is grouped, combined, or reciprocally incorporated with the rear position lamp.

Proposal to amend para. 2.4.10. to define a pair for vehicles of categories M, N and O as one or more lamp(s) extending from left to right-hand side, amend para. 2.4.11. and 2.4.12. to define single and multiple lamps and interdependent lamp systems marked Y, amend para. 5.5. and its sub-paragraphs to establish requirements for paired lamps including symmetry and photometric characteristics, amend para. 5.7.2.2. and 5.7.2.3. to specify installation requirements for single lamps, delete para. 5.7.2.4. concerning positioning and length requirements, amend para. 5.18.2. regarding assembly of lamps marked D, add para. 4.7.3. to UN Regulation No. 148 requiring a pair to contain at least one light source on each side, and amend para. 4.8.1.3. to clarify photometric measurement procedures when lamps use multiple light sources.

Proposal to amend para. 6.27.9.1. to exclude direction indicator lamps and dipped-beam headlamps from the 700 cd maximum luminous intensity limitation on or above the HH line when used as answer-back signals, allowing these devices to operate with their original specifications, while maintaining the restriction on front fog lamps, rear fog lamps, and stop lamps.

List of action items from the 22nd (4th under the old numbering) meeting of the Informal Working Group on Advanced Emergency Braking System held in Tokyo, Japan. Ten action items assigned, including:

• Investigating lost footnotes in paragraphs 2.13. and 6.1.1.1.,
• Ensuring consistent spelling of ‘daytime’/‘nighttime’ in document AEBS-22-08,
• Explaining ambient illumination requirements of at least 15 lux in para. 5.2.4.4. (d),
• Preparing justification for testing only adult dummies at nighttime,
• Preparing lamp test setup diagrams,
• Checking and proposing definitions for revised paragraphs aligned with UN R48,
• Clarifying scenario optionality and modularity,
• Providing error bar formulas,
• Conducting testing on pedestrian detection with high reflective clothing.

Provisional agenda for the 52nd session of the IWVTA Informal Group scheduled for November 12, 2026 in Paris. The session will address election of a new Chair, adoption of the agenda and 51st session report, highlights from the 199th WP.29 session, amendments to UN R0 series, contradiction between transitional provisions in UN R22 and Revision 3 of the 1958 Agreement, proposed amendments to Guidelines on Transitional Provisions, IWVTA awareness and promotion, extension of mandates, and DETA scheme implementation.

Proposal to amend the Guidelines on Transitional Provisions by applying footnote 6 to V.3 as well as V.8, replacing the added as well language in footnotes 4 to 6 with used instead of, deleting also from footnotes 4 and 5, adding Notwithstanding paragraph V.4 before Contracting Parties applying in footnotes 4 and 5, and using continue to only for the V.8 case in footnote 6 to align terminology, clarify scope, and remove overlaps between main text and footnote wording.

Software identification and updates for vehicles no longer in production. UN R156 series 01 introduces mandatory RXSWIN for software updates after registration. RE3 Annex 7, UN R157, UN R171, and UN R185 define type approval rules post-production. Manufacturers may apply for new approvals to differentiate software for registered vehicles from new vehicles, covering type approval regulation updates or hardware changes. Duplication of tests shall be avoided where possible. National Type dates need not be respected for new approvals under the 1958 Agreement.

Document addresses an apparent contradiction between transitional provisions 15.1.2. and 15.1.3. in the 06 series of amendments to UN R22 on helmets and article 12.4 of Revision 3 of the 1958 Agreement. The IWG on IWVTA provides preliminary answers confirming that provisions of the 1958 Agreement should generally prevail over UN Regulation provisions, and the transitional provisions are in contradiction with article 12.4 and should be reconsidered unless considered necessary exceptions. Article 12.4 allows Contracting Parties to issue type approvals pursuant to earlier versions of UN Regulations, with the freedom to accept or reject such approvals remaining with each Contracting Party.