Proposal to enable the approval of vehicles equipped with an Automated Driving System and to optimize the measurement accuracy requirements for chassis dynamometer equipment and the measurement acquisition of the intake manifold pressure in system power testing for high-performance vehicles and makes editorial corrections.

UN GTR No. 21 Phase 4 will consider fuel-cell electric vehicles, measurement alternatives for highly integrated systems, modifications for more efficient test methods, and alignment with UN Regulation No. 177 based on inputs EVE-87-08e, EVE-87-09e, EVE-87-11e, EVE-88-12, EVE-85-06e, and EVE-74-10e. UN GTR No. 22 Phase 4 will explore conditioning cycles and readiness monitors for official testing, investigate minimum performance requirements for certified range, and consider establishing minimum performance requirement values for additional lifetime of ten years and 200,000 km, drawing on input EVE-96-06e. UN GTR No. 25 Phase 3 will amend Annex 2 provisions, verify reported virtual distance, reconsider minimum performance requirements regarding mileage and lifetime thresholds, and consider energy throughput as a threshold.

The 96th EVE IWG session was held online on April 21, 2026. Discussions covered Alliance des Mobilites’ battery state of health and state of certified energy monitoring findings; UN GTR No. 21 priorities including fuel cell electric vehicles and highly integrated systems; UN GTR No. 22 objectives on state of certified range and minimum performance requirements; and UN GTR No. 25 pilot phase testing and normal usage indices for heavy-duty vehicles. Action items included presentations on battery data, fuel cell vehicle proposals, test method efficiency, and electrified vehicle data from Norway.

The Electric Vehicles and the Environment informal group reported on amendments to UN Global Technical Regulations 21, 22, and 25 governing electrified vehicle power, battery durability for light-duty vehicles, and battery durability for heavy-duty vehicles. Proposed changes include revised test methods, boundary conditions, definitions, and alignment with UN Regulation transposition efforts. Future work includes investigating fuel-cell vehicles, charging power curves, and alternative test methods.

Proposal optimises the measurement accuracy requirements for chassis dynamometer equipment and the measurement acquisition of the
intake manifold pressure in system power testing for high-performance vehicles and makes editorial corrections.

Proposal to enable the approval of vehicles equipped with an Automated Driving System under this Regulation.

Proposal to align the scope with the Euro 7 emissions legislation, including the clarification of the definitions on vehicle types and families.

Proposal to amend para. 1.1. to specify scope criteria for hybrid electric and pure electric vehicles, insert footnote 1 defining terms by reference to ECE/TRANS/WP.29/78/Rev.8, amend para. 2. to add abbreviations for Automated Driving System, All-Wheel Drive, and Full Scale Deflection, amend paras. 3.4.1., 3.5.4., 3.5.5., and 3.5.6. to replace “driver” with “user” and “accelerator pedal command” with “acceleration demand”, amend Table 2 to replace “Accelerator pedal command” with “Acceleration demand”, amend para. 8.1.2. to permit onboard measurement data and require use of ADS testing mode for vehicles of categories X and Y, amend para. 8.8.1. to add operational metrics monitoring requirements, amend para. 8.8.3. to reference manufacturer-specified normal operating ranges, amend para. 8.8.5. to replace “driver” with “user”, amend para. 8.8.6. to replace “accelerator pedal command” with “acceleration demand” and permit variation as recommended by manufacturer, amend para. 8.9.1. to replace “accelerator pedal command” with “acceleration demand”, and amend Appendix 1 item 7.3. and Appendix 2 items 3.4. and 3.6. to replace “driver” with “user” and “Accelerator pedal command” with “Acceleration demand”.

Proposal on the clarification for the definition of vehicle types and families.

Proposal to align the scope with the Euro 7 emissions legislation. An informal document amending this proposal is under development.

Proposal for a new UN Regulation transposing GTR 21 for use under the 1958 Agreement.

Proposal transposes the content of UN GTR No. 21