6 county-level rules, plus city-specific rules for 3 cities in Fairfax County, Virginia.
Verified from official government sources
Fairfax County quiet hours run 10 PM-7 AM weekdays and 10 PM-9 AM weekends/holidays (Code Ch. 108.1). Daytime residential cap is 60 dB at the property line; outdoor construction is banned 9 PM-7 AM Sun-Thu, 9 PM-9 AM Fri-Sat. Sound audible inside a closed neighbor's home overnight violates the ordinance.
Construction noise in Fairfax County is generally permitted Monday through Saturday from 7:00 AM to 9:00 PM and prohibited on Sundays and federal holidays. Emergency repairs and public infrastructure work are exempt. Violations fall under Chapter 108 of the County Code.
Fairfax County prohibits dogs that bark, howl, or make other noise continuously or habitually for 10 minutes or more, or intermittently for 30 minutes or more, when plainly audible across a residential property line. Enforced under Chapter 41.1 (animals) and Chapter 108 (noise).
Fairfax County does not ban gas-powered leaf blowers, but their use is restricted to the construction hours window of 7:00 AM to 9:00 PM Monday-Saturday and is prohibited on Sundays and federal holidays. The sound must not exceed 65 dBA at the property line for sustained operation.
Amplified music, live performance, and public address systems on private property in Fairfax County must not be plainly audible at 50 feet from the property line at any time, and must end entirely by 10:00 PM (9:00 AM start Sunday/holiday). Commercial venues require permits.
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).
Va. Code § 46.2-1049
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 ...
3 cities in Fairfax County have their own noise ordinances rules. Each link goes to that city's dedicated page with code citations.
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Fairfax County Ordinance Hub →