Bill Targets Vehicles with Modified Exhausts to Make More Noise, Imposing Jail Time or Fines, with Penalties Potentially Doubling for Repeat Offenders Within 12 Months

Written by Romário Pereira de Carvalho

Published on 02/02/2026 at 11:00

Imagem: Ilustração artística

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Proposal Under Consideration Transforms Recidivism for Modifications that Increase Vehicle Noise into a Misdemeanor, with Simple Imprisonment or Fine, Altering the Current Approach of the Brazilian Traffic Code and Urban Enforcement

The Bill 4573/25 proposes to punish as a misdemeanor drivers who are repeat offenders and drive vehicles with modifications that increase noise, tightening the penalties currently applied by the Brazilian Traffic Code, with a direct impact on urban enforcement and noise control.

The text changes the treatment given to practices such as straight piping and tampered mufflers, which are currently classified only as administrative infractions under the Brazilian Traffic Code, without criminal consequences.

Under the proposal, drivers caught committing the same infraction within a 12-month period will face simple imprisonment or a fine of R$ 1,000.

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Stronger Response to Urban Noise

The author of the project, Deputy Kim Kataguiri, claims that the measure seeks to curb practices that affect public order and the sound environment in densely populated urban areas.

According to the parliamentarian, the proposal strengthens enforcement by targeting drivers who continue to disrespect rules even after administrative penalties already provided by current legislation.

For the deputy, recidivism demonstrates a high degree of disrespect for urban living rules, requiring a stronger and proportional response from the State.

The text establishes that any equipment installed, removed, or altered with the intent to increase vehicle noise constitutes an infraction subject to punishment.

Project Progress and Next Steps

The proposal will be analyzed on a conclusive basis by the committees of Administration and Public Service, Ground Transportation, and Constitution and Justice and Citizenship.

If approved in these instances, the matter will still need the endorsement of the Chamber of Deputies and the Federal Senate to become law.

The initiative adds to recent discussions about noise pollution, urban coexistence, and the limits of traffic enforcement, recurring themes in Brazilian urban centers.

With information from Câmara.leg.

Bill Targets Vehicles with Modified Exhausts to Make More Noise, Imposing Jail Time or Fines, with Penalties Potentially Doubling for Repeat Offenders Within 12 Months

Proposal Under Consideration Transforms Recidivism for Modifications that Increase Vehicle Noise into a Misdemeanor, with Simple Imprisonment or Fine, Altering the Current Approach of the Brazilian Traffic Code and Urban Enforcement

Stronger Response to Urban Noise

Project Progress and Next Steps

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Bill Targets Vehicles with Modified Exhausts to Make More Noise, Imposing Jail Time or Fines, with Penalties Potentially Doubling for Repeat Offenders Within 12 Months

Proposal Under Consideration Transforms Recidivism for Modifications that Increase Vehicle Noise into a Misdemeanor, with Simple Imprisonment or Fine, Altering the Current Approach of the Brazilian Traffic Code and Urban Enforcement

Stronger Response to Urban Noise

Project Progress and Next Steps

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