UN R168: Proposal for Supplement 1
Document WP.29/2025/29
23 December 2024
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.
Status: Formal WP.29 review