China’s fuel consumption standards for heavy-duty vehicles (HDVs) have progressed since Stage 1 was first introduced in 2012, and Stage 4 standards are currently in development.

The monitoring of on-board fuel consumption metering (OBFCM) data is aimed at preventing a growing gap between the certified and real-world CO2 emissions from trucks. This can only be achieved, however, if regulation mandates a certain accuracy for the OBFCM methods in real-world operation.

The European Union CO2 emission performance standards for heavy-duty vehicles mandate fleet-wide average emission reductions of 15% in 2025 and 30% in 2030 for new vehicles compared to the values reported by manufacturers in the baselining period, which ran from July 1, 2019 to June 30, 2020.