United Kingdom of Great Britain and Northern Ireland
17 Oct 2025 UN R168: Proposal for amendments (excluding Level 1C) (EC, Japan, OICA, and UK) GRPE-93-52 2025-10-17 EC Japan OICA UK
17 Oct 2025 UN R168: Proposal for a new Series of Amendments (including Level 1C) (EC, OICA, and UK) GRPE-93-55 2025-10-17 EC OICA UK
31 Jul 2025 UN R168: Proposal for a new series of amendments (EC, OICA, and UK) GRPE/2025/20 2025-07-31 Proposal to align the real-driving emissions provisions with the requirements of Euro 7 and to introduce a "levels" concept. An <a href="https://wiki.unece.org/display/trans/As+of+September+16%2C+2025" target="_blank">informal document amending this proposal</a> is under development. EC OICA UK