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UN R168: Proposal for Supplement 1
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Reference Number: WP.29/2025/29
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Proposal to: - Clarify the need for 3-phase and 4-phase analysis of test data depending on the fuel type of the engine (petrol or diesel)
- Clarify and align the provision of PEMS concentration and emission correction with UN Regulations as common provision
- Amend the scope to allow type approval of vehicles that previously were only within the scope as an extension based on their reference mass.
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Document date: 23 Dec 24
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Document status: Adopted by WP.29
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Relevant to
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Adoption Vote
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This proposal (WP.29/2025/29) was adopted by the World Forum. Thirty-six Contracting Parties out of the 61 applying UN R168 were present for the vote by AC.1. Thirty-six voted in favor with zero against and zero abstaining.
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View full document file for more information
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