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United Nations Economic Commission for Europe

Feb 2025

Updates to UN ECE Regulation on Quiet Road Transport Vehicles Published

On January 10, 2025, an 02 Series of Amendments to UN ECE Regulation No. 138 on Quiet Road Transport Vehicles (QRTV) with regard to their reduced audibility came into force.  The changes introduced by this 02 Series of Amendments are predominantly to address 'deficiencies' in the Regulation that have been identified during its application over the past few years.  The amendments are intended to provide greater clarity of the applicable requirements and to ensure greater consistency in their application.

Oct 2024

New UN ECE Regulation on Driver Control Assistance Systems Published

A new United Nations Economic Commission for Europe (UN ECE) Regulation on Driver Control Assistance Systems (DCAS), UN ECE Regulation No. 171-00, came into force on September 22, 2024.  Work on developing this new Regulation began in 2021, when the UN ECE World Forum for the Harmonisation of Vehicle Regulations (WP.29) noted that such systems were beginning to become available on the market, but that no specific Regulations existed to cover their specification and performance. This new Regulation defines Driver Control Assistance Systems (DCAS) as a combination of "hardware and software collectively capable of assisting a driver in controlling the longitudinal and lateral motion of the vehicle on a sustained basis" and specifies technical and performance requirements that DCAS must comply with, along with specific test procedures to confirm that vehicles equipped with DCAS comply with the specified requirements.