Conventional pollutant emission limits
Ministry of Transport (Bộ Giao Thông Vận Tải)
Type 3 (Euro 3)
In 2005, Vietnam issued Government Decision No: 249/2005/QĐ-TTg, which mandated emissions limits for motorcycles and mopeds, referred to as Type 2 standard (equivalent to the Euro 2 standard). The Decision required new manufactured, assembled, and imported motorcycles and mopeds to meet Euro 2 standard in 2007.
The Type 3 (Euro 3) standard was implemented in 2017 via Government Decision No. 49/2011/QĐ-TTg issued in 2011.
The Ministry of Transport (Bộ Giao Thông Vận Tải) is responsible for reducing emissions from new and in-use motor vehicles, overseeing testing, and implementing emission-related regulations.
Emission standards for two-wheelers are outlined in the table below. For Euro 3 emission standards, manufacturers can opt for either ECE R40 or WMTC as their test cycle, and should comply with their respective emission targets.
|Emission standard||Implementation date||Vehicle category||Cylinder capacity/speed||Pollutants (g/km)||Test Cycle|
|Euro 2a||2007||Motorcycles||< 150 cm3||5.5||1.2||0.3||ECE R40|
|≥ 150 cm3||5.5||1.0||0.3|
|Mopeds||< 50 cm3||1.0||1.2b||ECE R47|
|Euro 3c||2017||Motorcycles||< 150 cm3||2.0||0.8||0.15||ECE R40|
|≥ 150 cm3||2.0||0.3||0.15|
|vmax < 130 km/h||2.62||0.75||0.17||WMTC|
|vmax ≥ 130 km/h||2.62||0.33||0.22|
|a QCVN 04:2009/BGTVT
b HC + NOx
c QCVN 77:2014/BGTVT