New Traffic Enforcement May End Loud Motorcycles: Discover What Has Changed and Who Is Subject to Fines Under the New Rules.
End of Loud Motorcycles? Excessive noise is an annoying reality for those living in urban areas, and among the main sources of noise pollution, loud motorcycles stand out. However, this situation may be about to change. A new traffic enforcement initiative promises to eliminate the nuisance of noisy exhausts by imposing strict fines on offenders. Learn about the new measures in place, how they will be applied, and the impact this may have on people’s quality of life.
What Changes in Traffic Enforcement to End Loud Motorcycles
Many people have experienced the situation of talking at home or in an establishment when loud motorcycles pass by, interrupting the conversation. This generally occurs when the motorcyclist intentionally modifies the vehicle to make noise and attract attention.
However, this practice not only disturbs many, but it can also cause hearing loss for the driver, in addition to harming those who are frequently exposed to excessive noise.
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It is important to emphasize that the law has not changed and the change occurred in the Brazilian traffic enforcement manual, which is the document that dictates how traffic agents should act in certain situations.
This change occurred a few months ago, at the beginning of 2023, and another clarification is that the new traffic enforcement, which will end loud motorcycles, aims to fine vehicles that have been modified. Thus, if loud motorcycles are sports models, for instance, there will be no fine or vehicle seizure.
The regulation from the National Environment Council (Conama) indicates that, for motorcycles manufactured before 1998, the maximum noise level allowed is 99 dB. For models manufactured from 1999 onward, the established limits are between 75 and 80 dB, depending on the engine displacement.
Understand the Changes in Traffic Enforcement That Occurred in 2023
Before 2023, the infraction was proven through a stop, however, starting in 2023, the infraction is proven through procedures, meaning it is not necessary to stop loud motorcycles during blitzes or anything similar to apply the fine.
Therefore, the procedure now states that it is necessary to issue a ticket when the vehicle is without the devices intended for controlling the engine noise. Upon verifying the infraction without stopping the vehicle, it is necessary to detail it in the AIT.
The item loses originality when holes are made around the outlet hole, altering the emitted sound and increasing the noise. There are also other alterations, such as the placement of a washer, beverage or fragrance packaging, whistles, horns, etc., at the motorcycle’s outlet hole, all aimed at increasing the exhaust noise. In addition to these intentional acts, natural wear and tear of the equipment can also cause corrosion, compromising its function.
End of Loud Motorcycles: Fine Reaches R$ 195
The law establishes that driving a vehicle with an open exhaust or a defective, deficient, or inoperative engine silencer is a serious traffic infraction, punishable by a fine of R$ 195.23, in addition to five points on the National Driver’s License (CNH) and vehicle retention. Open exhaust means it operates through only one pipe and has no muffler or silencer.
If you replaced the original exhaust with a sports one, you first need to go to your state’s Detran to request authorization for the alteration of your motorcycle’s characteristics. With the document in hand, go to a trusted professional to replace the part with one that complies with Conama’s standards.
If you keep your motorcycle with the original characteristics and were still fined for noise pollution, it is possible to appeal in two instances at your state’s Detran. For this, it will be necessary to prove that the vehicle is within the law through a report issued by a certified inspection company (ECV).


A polícia ou órgão fiscalizador está demorando de mais para realizar esses procedimentos de recolher e , até mesmo multar os donos dessas motos, pq eles adulteram o veículo para o seu bel prazer e , que cilasque quem se sentir incomodado, é pra ontem
O barulho das motos que passam na rua de casa é de dar aflição de tão barulhentas, fico me perguntando, onde está a fiscalização de trânsito, a quem recorrer para que o barulho diminua. Moro em Ladário-MS, interior.
Tem que punir severamente, abuso e falta de respeito com a população. Exigir que o escapamento seja original de fábrica.