Guidance document on interpreting “type of REESS” (Rechargeable Electrical Energy Storage System) as defined in paragraph 2.48. of UN Regulation No. 100. The document establishes that when judging whether differences are significant, the evaluation should be from the perspective of whether the difference has a substantial impact on the safety performance of the REESS as required by UN Regulation No. 100. It provides consideration on essential aspects including manufacturer’s trade name or mark, chemistry, capacity and physical dimensions of cells, number of cells and mode of connection, construction and materials of casing, and ancillary devices for physical support, thermal management and electronic control.

Proposal to:

• Delete entries for annexes 9A, 9B, 9E (including its appendix 1) and 9F from the table of contents and treat as reserved,
• Insert new para. 0.2. describing the supplement’s purpose to streamline contents by eliminating redundant requirements and test procedures,
• Delete and replace paras. 6.2. to 6.3.2.2., 6.5. to 6.5.3.1., 6.10. to 6.10.2.3., and 6.14. to 6.14.2. with reserved status,
• Add new sentences to paras. 6.6.2.2., 6.7.2.2., 6.8.2.2. and 6.9.2.2. making isolation resistance measurement not required if REESS is equipped with isolation resistance monitoring system,
• Amend para. 6.12.3. to clarify requirements for REESS other than open-type traction battery,
• Replace “function of characteristic” by “function or characteristic” in para. 6.15.3.1.,
• Add new sentence to Annex 9 appendix 2 para. 1. allowing SOC adjustment at different ambient temperature,
• Delete annexes 9A, 9B, 9E and treat as reserved,
• Amend Annex 9F para. 3.3. heading and delete first paragraph,
• Amend Annex 9G para. 3.1. (b) and delete sub-paragraphs,
• Amend Annex 9H paras. 3.2.1. through 3.2.4. (c),
• Delete Annex 9J and treat as reserved.

Proposal to amend para. 0. to extend application to vehicles of category Y, amend para. 1.4. to exclude category Y vehicles and certain category N₁ vehicles, add definitions and clarifications for category Y vehicles in paras. 2.8., 2.22., 2.29., 2.32., 2.44., and 2.45., and replace wording in para. 5.3.1.2. concerning Automated Driving System activation and delete footnote 9.

Proposal to insert a new introduction section accounting for vehicles of categories X and Y equipped with an Automated Driving System (ADS), amend footnote 1 to reference the Consolidated Resolution on the Construction of Vehicles (R.E.3.), document ECE/TRANS/WP.29/78/Rev.8, and amend para. 6.1.5. to clarify that the exemption for sensors and driver assistance systems does not apply to vehicles of categories X and Y or automated driving systems unless the ADS performance of the Designated Driving Task is not affected.

Proposal to establish uniform provisions for type approval of vehicles of category N₁Y regarding fuel system integrity, electrical shock protection, and crash compatibility in frontal, lateral, and rear-end collisions. Requirements cover fuel leakage limits, hydrogen storage system integrity post-crash, high voltage electrical safety, REESS protection, and crash compatibility criteria. Tests reference UN R94, UN R95, UN R137, and UN R153. Vehicles derived from already-approved types may use previous test results if mass increase does not exceed 8 per cent. Approval marks and type approval procedures follow standard 1958 Agreement schedules.

Proposal to:

• Add clarification to para. 5.3.5. that compliance with maximum head deceleration is not required,
• Add new requirements to para. 5.9.1. limiting head deceleration compliance to parts qualifying as points of head contact,
• Replace ‘point of contact’ with ‘point of head contact’ throughout Annex 1 paras. 2.2., 2.3., 2.3.1. and 3.,
• Insert new para. 1.4.4. in Annex 4 specifying test procedures for contactable points not qualifying as points of head contact,
• Amend Annex 4 para. 2.1. to reference specific procedures,
• Replace ‘point of contact’ with ‘point of head contact’ in Annex 10 explanatory notes to Annex 1 para. 2.2.

Proposal to amend UN GTR No. 1 to introduce requirements for emergency door opening. The amendment addresses safety concerns arising from electrically operated door opening systems by requiring that power-assisted latch release controls, unlock controls, and door opening systems remain capable of functioning after main power supply loss for at least 60 minutes by means of secondary mechanical means, active secondary power supply, or fail-safe systems. The amendment also introduces definitions for latch release control, door handle, retractable door handle, unlock, unlatch, power loss, vehicle master control switch, and main power supply; requires latch release controls and door handles to be intuitive and unobstructed; and establishes interior and exterior test procedures to verify compliance with power loss requirements.

Proposal to insert para. 5.8.4.2. requiring electric side window controls adjacent to the front seat row be within reach and directly accessible without multiple actions, renumber former para. 5.8.4.2. as para. 5.8.4.3., insert para. 5.8.8. requiring electric side windows of the front seat row to function for at least 2 minutes during vehicle submergence, and insert Annex 11 describing submergence test procedures including container-based and slope-entry methods.

List of documents for the eightieth session of the Working Party on Passive Safety scheduled for Geneva, 7–11 December 2026. Documents include proposals for:

• Amendment 3 to UN GTR 1,
• A new UN Regulation for M₂ and M₃ vehicles to prevent children being left inside,
• A 05 series of amendments to UN R11,
• A 02 series of amendments to UN R21,
• Supplement 4 to the 06 series of amendments to UN R22,
• A 06 series of amendments to UN R129,
• Supplement 2 to the 03 series of amendments to UN R134,
• Supplement 03 to the 01 series of amendments to UN R145,
• Supplement 1 to the 01 series of amendments to UN R170,
• A 02 series of amendments to UN R173,
• A new UN Regulation for category N₁ vehicles regarding fuel system integrity and crash compatibility,
• Supplement 3 to the original series of amendments to UN R42,
• Supplement 5 to the 04 series of amendments to UN R127,
• Amendments to UN Regulations Nos. 11, 12, 14, 16, 17, 21, 94, 95, 100, 127, 134, 135, 137, 153, 173, 174 and 184.

Proposal to:

• Insert new para. 0.2. establishing provisions on emergency door opening,
• Amend paras. 1.1., 2.7.1., 2.7.2., and 2.9.,
• Insert new paras. 2.30. to 2.38. defining latch release control, door handle, retractable door handle, unlock, unlatch, power loss, vehicle master control switch, main power supply, and door opening,
• Insert new para. 5.4. establishing requirements for exterior and interior door operation,
• Amend para. 6.3.1. and 6.3.1.1.,
• Amend paras. 6.3.2., 6.3.3., and 6.3.3.1.,
• Insert new para. 6.4. on latch release controls and door handles requiring intuitive operation and capability to remain functional for at least 60 minutes after power loss through mechanical backup, secondary power supply, or fail-safe design,
• Insert new para. 7.3. on testing power-assisted latch release controls and door opening systems,
• Insert new paras. 13.0. and 13.1. on transitional provisions,
• Insert new Annex 7 specifying interior and exterior power loss test procedures.

Proposal to insert a new paragraph 4.10. requiring any removable insert to have a permanently attached label indicating brand, model and size range with a minimum label size of 40 × 40 mm or equivalent area, and renumber paragraphs 4.10. (former) to 4.12. as paragraphs 4.11. to 4.13. in Supplement 2, and renumber paragraphs 4.11. (former) to 4.13. as paragraphs 4.12. to 4.14. in Supplement 3 to correct paragraph numbering mistakes in section 4.

Proposal to amend UN Regulations Nos. 11, 12, 14, 16, 17, 21, 94, 95, 100, 127, 134, 135, 137, 153, 173, 174 and 184 to incorporate provisions related to RXSWIN in accordance with revision 8 of the Consolidated Resolution on the Construction of Vehicles (R.E.3). The amendments insert provisions regarding Software Identification Number definitions, manufacturer information requirements for approval tests, vehicle approval applications for software version differentiation, production discontinuation rules for software updates, and additional information on software identification and updates. Amendments are to enter into force in early 2028.

Proposal to establish uniform provisions concerning the approval of M₂ and M₃ special purpose vehicles designed specifically for the carriage of children to assist in the prevention of children being left inside. The regulation applies to vehicles of categories M₂ and M₃, class B and III. Vehicles shall be equipped with a physical inspection system that engages when the vehicle master control switch is turned off and generates an external visual and audible warning if not disarmed within 3 minutes for buses or coaches not exceeding 22 passenger seats, or within 5 minutes for those exceeding 22 passenger seats. The physical inspection system shall not influence the bus or coach’s performance or safe operation, and failure of the system shall not affect safe operation of the vehicle.

Proposal to:

• Replace ‘seat belt’ with ‘safety-belt’ throughout the regulation,
• Insert new definitions for adult safety-belt, battery, pre-loading device, primary means of restraint, small infant support, supplemental restraint system, and user inflatable elements,
• Amend marking and labelling requirements for enhanced child restraint systems and inserts,
• Add provisions for supplemental restraint systems including deployment conditions and fail-safe procedures,
• Establish requirements for batteries including removability and low battery voltage reminders,
• Add provisions for loss of vehicle battery connection warnings,
• Clarify insert and small infant support requirements and marking arrangements,
• Update dynamic testing procedures for supplemental restraint systems,
• Establish transitional provisions with entry into force on 1 September 2029 and 1 September 2030.

Proposal to replace the reference to EN 71-3:2019 with EN 71-3:2019+A2:2024 in para. 7.3.1.1. The current version of the European Standard for toxicity has been withdrawn by CEN and replaced with a new version. This update reflects the latest published version of the standard to avoid administrative burdens during type-approval of built-in child restraint systems for vehicles of M₂ and M₃.

Proposal to replace the reference to EN 71-3:2019+A1:2021 with EN 71-3:2019+A2:2024 in para. 6.3.1.1. and replace the reference to EN 71-2:2020 with EN 71-2:2020+A1:2025 in para. 6.3.1.2. The versions currently referenced have been withdrawn by the European Committee for Standardization, and updating the references to the latest published versions will avoid administrative burdens during the type-approval process of enhanced child restraint systems.

Proposal to:

• Amend para. 2.2.3. to clarify reference to head impact zone and knee contact area,
• Replace the reference in para. 5.1.1. from 5.1.7. to 5.10.,
• Delete paras. 5.1.7. to 5.1.7.2.,
• Amend para. 5.9.2. to allow use of annex 8 as alternative method,
• Insert new paras. 5.10. to 5.10.3. establishing optional manufacturer choice to use annex 8 to determine component contacts with different requirements depending on whether protective system prevents contacts,
• Amend annex 8 title and paras. 1., 1.1., 1.2., 1.2.1., and 2. to extend scope to knee contact area assessment using adult dummies of 5th percentile female, 50th percentile male and 95th percentile male,
• Amend annex 8 para. 4. and add new entry to annex 10.

Proposal to:

• Amend para. 2.27. to define ‘ISOFIX position’ by reference to UN Regulation No. 145 requirements,
• Amend para. 2.36. to define ‘i-Size seating position’ by reference to UN Regulation No. 145,
• Insert para. 2.48. to define ‘Minimum effective safety-belt length’,
• Insert para. 5.1.11. to establish minimum safety-belt length measurement procedures for vehicles of categories M₂ and M₃,
• Add requirements to para. 5.2.1. for seating positions suitable for different child restraint system types,
• Delete text from para. 5.2.2.,
• Delete the first sentence of para. 5.3.5.,
• Insert para. 11.3. with transitional provisions applicable from the official entry into force date until 1 September 2030,
• Amend Annex 6, Appendix 1 and delete para. 1.2. from Appendix 2.

Proposal to:

• Amend para. 2.9. to clarify the definition of ISOFIX position by listing types of child restraint systems that may be installed,
• Amend para. 2.24. to clarify the definition of i-Size seating position,
• Amend para. 5.2.2.7. to exempt i-Size seating positions and ISOFIX lower anchorages in vehicles of categories M₂ or M₃ from certain requirements,
• Add a new paragraph after para. 5.2.4.1. to exempt marking requirements for vehicles of categories M₂ or M₃,
• Add a new paragraph after para. 6.2.5.1. specifying inertia load requirements for vehicles of categories M₂, N₂, M₃, and N₃.

Proposal to amend paras. 15.1.1. to 15.1.4. to change the transitional provisions and allow Contracting Parties to issue approvals according to the 05 series of amendments. As from entry into force of the 06 series, no Contracting Party shall refuse approval under the 06 series. As from 18 months after entry into force, no Contracting Party shall grant approvals unless the helmet or visor type meets the 06 series requirements. As from 30 months after entry into force, all Contracting Parties shall prohibit approval marks referring to type approvals granted under the preceding series. As from 36 months after entry into force, Contracting Parties may prohibit the sale of helmets and visors which do not meet the 06 series requirements.