Consolidated revision to make corrections, clarifications and improvements that have already been introduced into the 02 and 03 series of amendments of UN R154. The proposal is based on document GRPE/2024/2, GRPE-90-11-Rev.1, and GRPE-91-11 PEV run-in provisions only). Proposal to align the manufacturer information document with the type-approval certificate, adapt the calibration of measurement equipment to PN10 (which measures more particles than PN23), and clarify that compliance when measured according to PN10 demonstrates compliance with the same limit according to PN23.

Proposal to align the manufacturer information document with the type-approval certificate, make corrections, clarifications and improvements that have already been introduced into the 02 and 03 series of amendments of UN R154, and clarify that compliance with a limit measured according to PN10 demonstrates compliance with the same limit according to PN23.

Proposal to amend additive deterioration factors and the PEV run-in requirement, to align the manufacturer information document with the type-approval certificate, to clarify that compliance with a limit when measured according to PN10 demonstrates compliance with the same limit according to PN23, and to effect corrections and editorial improvements.

Proposal to align the manufacturer information document with the type-approval
certificate and to clarify that compliance with a limit measured according to PN10 demonstrates compliance with the same limit according to PN23.

The 28th session of the Informal Working Group on Automotive Life Cycle Assessment convened on 8th October 2025 from 12:00 to 15:00 via web. The agenda includes welcome and introduction, adoption of the agenda and last meeting minutes, review of open issues, review of all development of amendment proposal, and discussion of whether to keep the original schedule or extend activities until next GRPE.

“Hotspot” means a process or stage within a defined boundary exhibiting GHG emissions significantly higher than the average. A process or stage shall be included in the calculation if recognized as necessary to satisfy the requirement definition of the cut-off rule in 7.13, even if not considered a hotspot in GHG emissions calculation. Hotspots are defined in the 2017 UNEP report, and hotspot definition may be revised considering updated references.