| UN R143: Proposal for a Supplement 2 |
| Reference Number: WP.29/2026/152 |
|
Proposal to amend paragraph 1.1., footnote 1 to update the reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3.); amend paragraph 4.4.1. to establish requirements for a dual-fuel operating mode indicator including visual and audio signals, with restrictions on indicator design and safety alert priority; amend paragraph 4.4.1.1. to require warnings when engine operation is forced to diesel mode and signals to an ADS feature; and amend paragraph 7.1. to specify OBD system requirements for diesel and dual-fuel operation modes, including malfunction detection and driver notification procedures. |
| Submitted by: GRPE |
| Meeting Sessions: 199th WP.29 session (22-26 Jun) |
| Document date: 09 Apr 26 |
| Document status: Adopted by WP.29 |
| Relevant to: UN Regulation No. 143 | Heavy-Duty Dual Fuel Retrofit Systems and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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