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Zero emission buses are worth reaching for, but emission performance standards are the low-hanging fruit

Josh Miller Sales of battery electric buses are surging, yet a complete technology transition won’t happen overnight. Meanwhile, tightening emission standards on conventionally powered buses would have immediate benefits for air quality...

Zero emission buses are worth reaching for, but emission performance standards are the low-hanging fruit

Josh Miller Sales of battery electric buses are surging, yet a complete technology transition won’t happen overnight. Meanwhile, tightening emission standards on conventionally powered buses would have immediate benefits for air quality...

China’s first national portable emissions testing standard for heavy-duty vehicles

Liuhanzi Yang In September, China’s Ministry of Environmental Protection issued the first national standard for portable emission measurement system (PEMS) testing of heavy-duty vehicles (HDVs). This regulation is a supplement to all existing...

China’s first national portable emissions testing standard for heavy-duty vehicles

Liuhanzi Yang In September, China’s Ministry of Environmental Protection issued the first national standard for portable emission measurement system (PEMS) testing of heavy-duty vehicles (HDVs). This regulation is a supplement to all existing...