Calibration of measurement equipment to PN10 measures more particles than calibration to PN23. It is therefore logical that compliance with a limit when measured according to PN10 demonstrates compliance with the same limit according to PN23 but this text should be added for legal certainty.

This proposal intends to establish a definition for ‘Hydrogen ICE vehicle’ and the related method for ‘trip validation’

Annex to GRPE 92-08

Presentation on road load and dynamometer setting and

Proposal concerning the approval of the wind tunnel facilities.

Proposal to bring clarity in the text relating to On-Board Diagnostics (OBD).

Review on the possible direction
(1) new series of amendment
(2)single series structure

Proposal from the Particle Measurement Programme informal group to improve the text and test protocol. A version of this document with tracked changes is available.

Proposal to maintain consistency between UN R49 and UN R83 in light of amendments to the 06 and 07 series of UN R83.

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/2024/3, GRPE-90-11-Rev.1, and GRPE-91-11 PEV run-in provisions only).

Proposal to amend additive deterioration factors and the PEV run-in requirement and to effect corrections and editorial improvements.

Proposal to update requirements for dynamometer preparation before a Type 6 test by aligning UN R83 with the relevant text of Annex 13 of GTR 15.

Proposal to allow the type approval of vehicles that previously were only within the scope as an extension based on their reference mass.

Proposal to add engine capacity to the information document and to make editorial corrections.

Proposal to introduce new provisions to accommodate type-approval of hydrogen Type 1A dual fuel engines and vehicles, modifications to include Fourier Transform Infrared (FTIR) and Quantum Cascade Laser (QCL) instruments and new provisions to accommodate monitoring on-board fuel and/or energy consumption during PEMS testing.

Proposal to align the manufacturer information document with the type-approval
certificate.

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).