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UN Regulations

or 3D-HM to the latest. - Update references in R.E.3, and change footnote references in Annex 4 to M.R.1 Addendum 6. 16 AdoptedproposalregardingUN/ECEregulation 30 02 S27 WP.29/2025/68 + amended by 196th WP.29 reports 2025/6/25 2026/1/11 Pneumatic Tyres (Passenger Vehicle) -Update of the year for ISO 4000-1 to the latest -Revision of the expression for tread grooves to align with R117. -Revival of the definition of the structural symbol (ZRF) f...

Regulations Updated at: 2025/11/25

Emission Standards - EU Passenger Cars and Light Duty Trucks

emission limits but have other differentiating rules. The definitions of Euro 5a, 5b and 5b+ for SI and CI engines are shown below. Table 12: Euro 5a/b/b+Definitions for SI Engines Euro 5a Euro 5b Euro 5b+ PM Limit (mg/km) 5.0 5.0 Tyres Euro 4 rules Highest or 2nd highest rolling resistance ISO 28580 Deterioration Factors CO: 1.5; THC/NMHC: 1.3; NOx: 1.6; PM/PN: 1.0 OBD: Monitoring of Catalytic Converter Against NMHC Against NMHC and ...

Regulations Updated at: 2024/12/13

UN regulations - Noise

egulation 51 03 S4 2018/63 2018/6/20 2018/2/10 Noise -As alternative measures indoor testing may be applied. -Clarification of the test method in case the acceleration is greater than 2.0 m/s². Aug. 2018 Adopted proposal regarding UN/ECE regulation 51 03 S2 2017/71 2018/4/26 Noise -The latest ISO test method shall be added to ASEP test method, -The definition of "gear" shall be made clear. -Error correction. 03 S3 2018/7 2018/3/14 Nois...

Regulations Updated at: 2020/02/05