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.

Hotspot means a life cycle stage whose contribution to an impact category exceeds even distribution across all stages, or all stages collectively contributing more than fifty percent to any impact category. In vehicle LCA guidelines for Global Warming Potential, hotspots refer only to the production phase and are related to parts or components representing minimum twenty percent of Global Warming Potential of the production phase. Level three requires company-specific data for at least one hotspot material or component, with primary data preferred and secondary data traceable and based on field survey data when primary data unavailable.

A-LCA SG2 comments. Results of A-LCA based on this Resolution shall be completely and accurately reported without bias in accordance with paragraph 6 “Reporting” of ISO 14040: 2006. Results, data, methods, assumptions and limitations described in the background report shall be transparent and presented in sufficient detail to allow readers, reviewers, verifiers and the targeted audience to comprehend the determination process and its complexities and trade-offs inherent in the LCA. The background report is the basis for critical review and verification for all levels of the level concept. When results of the A-LCA are available to the public, required information shall be described within the background report and in a summary report, including general information, applicable methodology, vehicle configuration, geographic considerations, results, data sources and weighting factors, and reviewer or verifier signature.