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Laredo, TX Noise Ordinances: Vehicle Noise (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

State Law
TX Transp Code 547.604
Audibility
30 feet for stereo
Jake Brakes
Restricted near residential
Truck Routes
Mines Rd, Loop 20 monitored
Fine
150 to 500 dollars

Summary

Modified exhaust, loud car stereos, and jake-brake use are cited under Laredos noise ordinance and TX Transportation Code 547.604. Fines range from 100 to 500 dollars, with heavier enforcement near residential streets off the I-35 corridor.

Sec. 547.604. MUFFLER REQUIRED. (a) A motor vehicle shall be equipped with a muffler in good working condition that continually operates to prevent excessive or unusual noise. (b) A person may not use a muffler cutout, bypass, or similar device on a motor vehicle. Sec. 547.605. EMISSION SYSTEMS REQUIRED. (a) The engine and power mechanism of a motor vehicle shall be equipped and adjusted to prevent the escape of excessive smoke or fumes. (b) A motor vehicle or motor vehicle engine, of a model year after 1967, shall be equipped to prevent the discharge of crankcase emissions into the ambient atmosphere.

Source: TX Transportation Code 547.604View official code

Full Breakdown

Laredo Police enforce vehicle-noise rules against modified mufflers, straight pipes, and stereos audible 30 feet or more from the vehicle. State law under TX Transportation Code 547.604 requires a muffler in good working order that prevents excessive or unusual noise, with no cutouts or bypasses. Jake brakes on diesel trucks are commonly restricted in residential areas, a notable concern along Mines Road, Loop 20, and near port-of-entry truck routes. Citations can accompany registration or inspection denials at annual renewal. Engine-braking signage appears along some arterials near neighborhoods.

Violations & Fines

Typical fine 150 to 500 dollars. Failure to correct may cause inspection rejection at renewal.

Frequently Asked Questions

Are straight pipes illegal in Laredo?
Yes. TX Transportation Code 547.604 requires a functioning muffler and bans bypasses or cutouts.
Can truckers use engine brakes on Mines Road?
Only where signage permits. Residential segments restrict engine-braking to reduce nighttime noise.

Sources & Official References

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All Laredo rules

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