Fairfax County, VA Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Modified exhaust
- Prohibited under VA §46.2-1049
- Car stereo threshold
- Plainly audible at 50 feet
- Horn use
- Warning only, not as noisemaker
- Typical fine range
- $50-$250
- Motorcycle rules
- Same as cars
Summary
Fairfax County prohibits modified exhaust, unnecessary engine revving, loud car stereos plainly audible at 50 feet, and horn use except as a warning. Violations are enforced under Chapter 108 and Virginia Code §46.2-1049 (motor vehicle muffler requirements).
No person shall drive and no owner of a vehicle shall permit or allow the operation of any such vehicle on a highway unless it is equipped with an exhaust system in good working order and in constant operation to prevent excessive or unusual levels of noise, provided, however, that for motor vehicles, such exhaust system shall be of a type installed as standard factory equipment, or comparable to that designed for use on the particular vehicle as standard factory equipment or other equipment that has been submitted to and approved by the Superintendent or meets or exceeds the standards and specifications of the Society of Automotive Engineers, the American National Standards Institute, or the federal Department of Transportation.
As used in this section, "exhaust system" means all the parts of a vehicle through which the exhaust passes after leaving the engine block, including mufflers and other sound dissipative devices.
Chambered pipes are not an effective muffling device to prevent excessive or unusual noise, and any vehicle equipped with chambered pipes shall be deemed in violation of this section.
The provisions of this section shall not apply to (i) any antique motor vehicle licensed pursuant to § 46.2-730 , provided that the engine is comparable to that designed as standard factory equipment for use on that particular vehicle, and the exhaust system is in good working order, or (ii) converted electric vehicles.
Full Breakdown
Vehicle noise in Fairfax County is regulated by a combination of the county's Chapter 108 noise ordinance and state law. 2-1049 requires every motor vehicle to be equipped with a muffler in good working order and specifically prohibits devices such as cutouts, bypasses, or modifications that amplify exhaust. The county ordinance supplements this by prohibiting car stereos and other audio equipment from being plainly audible at 50 feet from the vehicle, horn use except as a warning device, and unnecessary engine revving or tire squealing.
Enforcement is by Fairfax County Police and Virginia State Police. Modified exhaust systems, straight pipes, and aftermarket mufflers that increase sound output above factory specifications are subject to ticketing. Motorcycles are treated identically to cars under the ordinance. Vehicle noise violations are generally traffic infractions with fines in the $50-$250 range, though repeat violations or extremely loud modifications can trigger Class 3 misdemeanor charges. Commercial vehicles using backup alarms during permitted hours are exempt.
Frequently Asked Questions
Is a loud aftermarket exhaust legal if it's DOT-stamped?
Can I get a ticket for a loud car stereo while parked?
What about backup beepers on delivery trucks?
Sources & Official References
Other rules in Fairfax County
Compare Fairfax County to another location·View the Virginia noise ordinances overview
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