Document Number WP.29/2023/60
1 2 3 4 5 6 7 8 9 10
Document title UN R49: Proposal for Supplement 2 to the 07 series of amendments
Date 4 Apr 2023

Proposal to permit the use of hydrogen (H2) as fuel for emissions type approval of heavy-duty vehicles, to insert provisions in Supplement 7 to the 06 series that were unintentionally omitted, to add a requirement for the accuracy of the humidity sensor, correct a typographical error (NOx mode), and to clarify the procedures.

Source(s) Add source(s) of document, if applicable
Status Adopted
Rulemaking area(s)
Regulatory impact
07 series of amendments | Supplement 2
Meeting(s)
Related documents
GRPE/2023/6 UN R49: Proposal for a new Supplement to the 07 series of amendments (Superseded)
GRPE-87-30 UN R49: Amendment to GRPE/2023/6 (Superseded)
GRPE-87-53 UN R49: Proposal for a Supplement to the 07 series of amendments (Superseded)
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Excerpts from session reports related to this document
WP.29 | Session 190 | 19-22 Jun 2023

99. The World Forum considered draft amendments under agenda items 4.7.1 to 4.7.9 and recommended their submission to AC.1 for voting with the following corrections:

In ECE/TRANS/WP.29/2023/60, Annex 4, Appendix 7:

Paragraph A.7.2.1.2., amend to read:
“…of stainless steel or PTFE and shall be heated to set points between 383 and 464 K…”

Paragraph A.7.2.2.2., amend to read:
“…of stainless steel or PTFE and shall be heated to set points between 383 and 464 K…”