Vietnam Vietnamese new National Technical Standard introduces Euro 5 emission standards

On April 6, 2021, the Ministry of Transport of Vietnam promulgated the Circular No. 06/2021/TT-BGTVT on the Promulgation of the National Technical Standard QCVN 109:2021/BGTVT on Level-5 Emission for Newly Manufactured, Assembled and Imported Automobiles. The QCVN 109:2021/BGTVT (hereinafter “the Technical Standard”) specifies the permissible upper limits of the emission level 5; test methods; and the requirements for the control and implementation of inspections on quality, safety technology and environmental protection for newly manufactured, assembled and imported vehicles. The “level-5” standard referred to here is equivalent to Euro 5 set by the European Union. This Circular will enter into force on January 01, 2022.

The Circular No. 06/2021/TT-BGTVT and the Technical Standard can be downloaded at:



The Technical Standard regulates four-wheeled vehicles that are classified into the following two types:

  • Light reference mass vehicles: Vehicles having a mass below 2610 kg including M1, M2, N1, and N2 types.
  • Heavy reference mass vehicles: Vehicles having a mass of 2610 kg or more including M1, M2, N1, and N2 types and vehicles classified into M3 or N3 types.


In addition, the emissions of three-wheeled vehicles weighing more than 400 kg shall be inspected in accordance with QCVN 04:2009/BGTVT and QCVN 77:2014/BGTVT. It should be noted that the Technical Standard do not apply to the following vehicles:

  • Vehicles designed and manufactured to be driven on lands or roads that are not part of the public road transport system
  • Electric vehicles (vehicles that operate with electric motors as a power source)

Author / Responsibility

AOKI Kenji

Senior Consultant, EnviX Ltd.
General Director, E&H Consulting Co., Ltd.

Business Performance

Expertise in EHS (environment, health and safety) consulting in ASEAN region.
- Environmental regulations updating
- Chemical regulations consulting


MSc in Earth Science, The University of Tokyo

AOKI Kenji