Collin County, TX Noise Ordinances: Vehicle Noise (2026)
Key Facts
- State Statute
- TX Transp 547.604
- Muffler
- Required
- Cutouts
- Banned statewide
- Fine
- 25-200 dollars
- Enforcement
- DPS, Sheriff
Summary
Vehicle noise in unincorporated Collin County is governed by TX Transportation Code 547.604 requiring functioning mufflers and 547.605 banning muffler cutouts. No county decibel limit. 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
Modified exhaust, straight pipes, and compression brake (Jake brake) use are citable under state law. Fines range 25 to 200 dollars. No county-specific Jake brake ban signs on rural roads like US 380 or SH 121. Contact Collin County at (972) 424-1460 for enforcement. This vehicle noise rule under Collin County's noise ordinances applies to unincorporated areas of Collin County. For current statutory text, amendments, enforcement procedures, fines, appeal options, and any exemptions that may apply to your situation, contact Collin County code enforcement directly or consult the official Texas municipal code library. Ordinances change periodically; always verify with local staff before relying on summary information.
Sources & Official References
Other rules in Collin County
Texas rules heatmap·Compare Collin County to another location·View the Texas noise ordinances overview
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