Proposal to enable application of the Regulation to vehicles equipped with an Automated Driving System.

Proposal to reintroduce text that was unintentionally omitted in document GRPE/2025/12 as adopted by GRPE during its 92nd session.

Proposal to improve FTIR/QCL Analyser Examination (Para. 9.3.2.8.1, 9.3.2.9.1, 9.3.2.10, Appendices 10–11), including expanding the examination authority to include type-approval authorities and technical services, requiring witnessing of the testing at the instrument manufacturer’s facility, and introducing new appendices providing an examiner template and a verification certificate format, and to permit other techniques for the water quench check (Para. 9.3.2.9.9) to address the adverse effects of H₂O and CO₂ on the CLD’s NOx response and align with the provisions of 40 CFR 1065.750(e)(5).

Proposal to update UN R49 to accommodate Automated Driving Systems (ADS). The supplement modifies definitions, mass calculations, warning systems, and testing procedures to apply to vehicles without human drivers. References to drivers are replaced with “vehicle user” terminology, and special provisions are added for ADS-equipped vehicles in testing and operational requirements.