Changes to UN/ECE Regulation No. 117 (R117) came into effect on 1 July 2024 and extend the regulation to include limits related to the wet grip properties of worn tyres. Michelin, which has long advocated for tyres that are safe right down to the 1.6mm legal tread depth limit, expresses strong support for the updated R117-04. In a statement issued this week, the tyre maker praises R117-04 for its role in “guaranteeing better safety on the roads” while also “addressing the issues of protecting both the planet and the purchasing power of European motorists.”