Travis County, TX Noise Ordinances: Vehicle Noise (2026)
Key Facts
- State Law
- TX Transp. Code 547.604
- Muffler
- Required, factory or equivalent
- Decibel Limit
- None statewide
- Enforcement
- Sheriff, DPS
Summary
Vehicle noise in unincorporated Travis County is enforced under TX Transportation Code 547.604 requiring functioning mufflers and prohibiting excessive/unusual noise. No county decibel ordinance. DPS and Sheriff enforce on county roads.
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.
Full Breakdown
TX Transportation Code 547.604 prohibits modified exhausts producing excessive or unusual noise and bypassing factory muffler systems. Violations are traffic misdemeanors. Loud motorcycle enforcement on FM 2222, RR 620, and Loop 360 is handled by Travis County Sheriff traffic unit and DPS. Contact Travis County at (512) 854-4260 for enforcement.
Sources & Official References
Other rules in Travis County
Texas rules heatmap·Compare Travis County to another location·View the Texas noise ordinances overview
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