Is Loud Exhausts Legal in Vietnam After the 2026 Law Changes?

No,

Loud exhaust systems violate Vietnam’s 2023 Road Traffic Law and Decree 100/2019/ND-CP, risking fines up to ₫16 million ($680) or confiscation. Hanoi and Ho Chi Minh City police enforce stricter noise limits under local ordinances, with 2026 inspections targeting modified vehicles.


Key Regulations for Loud Exhausts in Vietnam

  • Noise Limits: Exhaust noise must not exceed 93 dB(A) for motorcycles and 100 dB(A) for cars, per QCVN 41:2020/BGTVT technical standards.
  • Modification Ban: Altering original exhaust systems or installing aftermarket parts without homologation is prohibited under Article 5.3 of Decree 100/2019/ND-CP.
  • Enforcement: Local traffic police (Cảnh sát giao thông) conduct random checks using decibel meters; repeat offenders face license suspension or vehicle impoundment.