Document Number WP.29/2025/94
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Document title UN R49: Proposal for a Supplement 3 to the 07 series of amendments
Date 29 Aug 2025

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, new provisions to accommodate monitoring on-board fuel and/or energy consumption during PEMS testing, and to amend for consistency between UN R49 and UN R83 in light of amendments to the 06 and 07 series of UN R83.

Source(s) Add source(s) of document, if applicable
Status Formal WP.29 review
Rulemaking area(s)
Regulatory impact
07 series of amendments | Supplement 3
Meeting(s)
Related documents
GRPE/2025/12 UN R49: Proposal for a new Supplement to the 07 series of amendments (Superseded)
GRPE/2025/13 UN R49: Proposal for a new Supplement to the 06 and 07 series of amendments (Superseded)
GRPE-92-25/Rev 2 UN R49: Proposal for a new Supplement to the 07 series of amendments
GRPE-93-44 UN R49: Proposal for amendment to the 07 series of amendments
GRPE/2026/17 UN R49: Proposal for a Supplement to the 07 series of amendments (Formal GR review)
WP.29/2025/162 UN R49: Proposal for a Corrigendum to Supplement 3 to the 07 series of amendments (Adopted by WP.29)
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