Anti-lock Braking System: A part of the service brake that automatically controls wheel slip during braking to prevent lock-up and maintain steering control.

Environmental and Propulsion Performance Requirements

Working Party on Pollution and Energy (cf French: Groupe de Rapporteurs sur la Pollution et l’Energie)

Global Technical Regulation

On-Board Diagnostics: A system on board a vehicle that detects, records, and communicates malfunctions, historically emissions-related but can be related to other systems.