According to the Ministry of Environment’s 2023 noise complaints statistical data, vehicle noise represents 32% of cases, making it the leading source of complaints. To enhance living conditions and preserve residents' quality of life, Taoyuan City Deputy Mayor Su Jun-bin proposed legislative changes to the Executive Yuan last year (2023). In response, the Ministry of Environment (MOE) and the Ministry of Transportation and Communications introduced new regulations on December 29, 2023, and January 18, 2024, respectively: the "Certification Management Standards for Replacement Vehicle Muffler Systems" and amendments to the "Regulations Governing Road Traffic Safety." The goal is to integrate central regulatory measures with local enforcement to effectively control vehicle noise at its source and enhance end-stage inspections.
The Department of Environmental Protection of the Taoyuan City Government (TYDEP) explained that 2024 serves as a buffer period for the new regulations, lasting from January 1 to December 31. Vehicle owners with modified exhaust systems are urged to apply for muffler certification as soon as possible via the "Replacement Exhaust System Noise Inspection Information System." This system notifies both the owner and the relevant local environmental department to arrange inspections, free of charge. Once certified, the Ministry of Environment will upload noise and emission test data directly to motor vehicle management authorities, eliminating the need for in-person registration.
According to the TYDEP, the first certification inspection took place on March 5, offering owners two free testing opportunities. By the end of September, 69 testing sessions had been conducted, inspecting 2,218 vehicles, with 2,021 passing the certification process. Starting January 1, 2025, vehicles that are not registered online or have failed inspection will require owners to pay for testing at MOE-approved noise laboratories. Once passed, a further vehicle inspection registration change at local motor vehicle offices will be necessary, with a NT$200 fee for motorcycles.
The TYDEP emphasized that starting January 1, 2025, modified vehicles without certified exhaust system registration will face fines of NT$900 to NT$1,800 if found in violation during joint inspections by police, motor vehicle, and environmental agencies. Vehicles that fail noise testing may incur an additional fine of NT$1,800 to NT$3,600 under the Noise Control Act. TYDEP urges vehicle owners to take advantage of the current grace period and complete their exhaust certification applications before the end of the year.