Worldwide Harmonized Light Vehicles Test Cycle (WLTC)

Dieselnet’s WLTC page explains the Worldwide harmonized Light vehicles Test Cycles, chassis dynamometer cycles used to determine emissions and fuel consumption from light-duty vehicles as part of the WLTP framework (UNECE GTR 15).​
It supports technical capacity building by clarifying how WLTC/WLTP are used for type approval and how the transition from older cycles (e.g., NEDC in Europe) occurred over 2017–2019.