Noise ordinances › Prince William County, VA

Prince William County noise ordinance: quiet hours, limits and complaints

Last updated: November 9, 2026

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Quiet hours in Prince William County

Chapter 14 defines daytime as 7:00 a.m. to 10:00 p.m. on weekdays and 9:00 a.m. to 10:00 p.m. on Saturdays, Sundays and legal holidays observed by the county government; nighttime is every other hour (Sec. 14-3). So night always starts at 10 p.m., and it ends at 7 a.m. on weekdays and at 9 a.m. on Saturdays, Sundays and county holidays. At night the Table 1 limits drop (in residential districts from 60 to 55 dBA) and the steady tonal limit drops from 73 to 68 dB(C) (Sec. 14-4). Some rules carry their own clock. Talking, yelling, shouting, screaming, singing or other human sounds audible across property boundaries or through shared walls are banned from 10:00 p.m. to 6:00 a.m. (Sec. 14-5(7)). Operating, loading or unloading vehicles, and opening or destroying bales, boxes, crates and containers, outdoors within 100 yards of a lawfully occupied dwelling in zones other than industrial is banned from 10:00 p.m. to 6:00 a.m. (Sec. 14-5(3)). Sound devices used for commercial advertising or to attract the attention of the public, on trucks or other moving vehicles or in commercial establishments, are banned during the nighttime (Sec. 14-5(4)), and powered model aircraft may not be flown outdoors during the nighttime (Sec. 14-5(5)). Construction: with lawfully obtained permits, outdoor construction, repair, alteration or demolition in a residential zoning district within 100 yards of a lawfully occupied dwelling is not subject to the decibel limits from 7:00 a.m. to 9:00 p.m. on weekdays and from 9:00 a.m. to 9:00 p.m. on Saturdays, Sundays and county holidays; at all other hours it must meet the limits, and at nighttime it is prohibited. Public projects and utility repair or restoration work are excepted (Sec. 14-4(c)). Emergency generators may be exercised only during the daytime (Sec. 14-4(d)(2)). Trash: refuse, recyclable materials, yard waste and food waste may be removed only between 5:00 a.m. and 9:00 p.m., and refuse and recyclables from property zoned for business or industrial purposes also between 4:00 a.m. and 5:00 a.m. if the collection points are not within 100 yards of a lawfully occupied residential dwelling (Sec. 22-42, which Sec. 14-6 points to). Rules with no clock, in force at any hour: sound production devices audible 50 feet or more from the property boundary or through shared walls (Sec. 14-5(6)), vehicle sound systems audible 50 feet or more from the vehicle (Sec. 14-5(8)), and animal noise (Sec. 14-5.1).

Decibel limits

Yes. Sec. 14-4(a) Table 1 sets maximum A-weighted levels (Leq, an averaged level) by zoning district classification, daytime / nighttime: Residential 60 / 55 dBA; Mixed Use District 60 / 55; Commercial 65 / 60; Office 65 / 60; Industrial 79 / 72. Levels are measured at the property boundary of the sound source or at any point within any other property affected by the sound, and when a source can be measured in more than one zoning district classification the most restrictive limit applies. The Table 1 limits may not be exceeded during any three or more sampling intervals of no less than 30 seconds within any one-hour period; if the sound lasts less than 90 seconds the three-measurement requirement is waived; and measurements of impulsive sound, or in response to nuisance complaints, may be instantaneous readings. Steady tonal sound, which the chapter describes as a droning whine, hum, rumble or buzz from sources such as heating, ventilating or air-conditioning units, refrigeration units, transformers and backup generators, has an added C-weighted limit: 73 dB(C) in the daytime and 68 dB(C) at nighttime, measured at any location at or within a residential property boundary in a residential zoning district, on slow response, not to be exceeded over a five-minute interval (Secs. 14-3, 14-4(b)). Compliance with Table 1, Table 2 and Sec. 14-4(b) is based on the source sound level (Sec. 14-7); the chapter defines the corrected source sound level as the measured total sound level minus the measured ambient sound level (Sec. 14-3). Not subject to the nighttime levels: heating and cooling systems, including air conditioners and heat pumps, and radon systems serving a residential dwelling (Sec. 14-4(a)(2)). Not subject to Table 1 or the tonal limit: construction with lawfully obtained permits in a residential zoning district within 100 yards of a lawfully occupied dwelling, during the hours in Sec. 14-4(c)(1); public projects and utility repair or restoration work (Sec. 14-4(c)(2)); and emergency generators running during electrical grid outages, equipment failures or at the request of a utility; exercising a generator must meet Table 1 in the daytime (Sec. 14-4(d)). Vehicles on a public right-of-way (Sec. 14-5(1), Table 2, instantaneous maximum measured at 50 feet or more): motor vehicles with a GVWR or GCWR of 6,000 lbs. or more, 86 dBA where the speed limit is 35 MPH or less and 90 dBA where it is over 35 MPH; any motorcycle, 82 and 86 dBA; any other motor vehicle or combination towed by a motor vehicle, 76 and 82 dBA. Motor carrier vehicles engaged in interstate commerce are outside that rule. Meters: measurements are made with a Type 1 integrating sound level meter capable of C-weighted and A-weighted measurements, calibrated at the time of any noise measurement, at the location the rule names and at any elevation there, such as a 2nd floor bedroom window (Sec. 14-7). Appendix A lists recommended octave band levels for residential zoning districts (for example 71 dBZ by day and 66 dBZ at night at 31.5 Hz, and 47 and 42 dBZ at 1000 Hz), and says these values are advisory and are not the legal compliance test. The audibility rules in Sec. 14-5(6), (7) and (8) and the animal rule in Sec. 14-5.1 have no decibel number.

What the ordinance actually says

Sec. 14-4(a)(1): "Except as otherwise provided, any sound which emanates from any operation, activity or source and which exceeds the maximum permissible sound levels established in this section below is hereby prohibited. Such levels shall be measured at the property boundary of the sound source or at any point within any other property affected by the sound. When the sound from a source can be measured in more than one zoning district classification, the limits of the most restrictive classification shall apply."

Sec. 14-3: daytime "means the local time of day between the hours of 7:00 a.m. and 10:00 p.m. weekdays and from 9:00 a.m. to 10:00 p.m. on Saturdays, Sundays and legal holidays observed by the county government unless otherwise specified."

Sec. 14-4(b): "No source of steady tonal sound may exceed the limits outlined below when measured at any location at or within a residential property boundary in a residential zoning district." ... "Daytime 73 dB(C); Nighttime 68 dB(C)." ... "The limits above may not be exceeded over a five-minute interval."

Sec. 14-5(6): "The playing of any sound production device which produces, reproduces or amplifies sound in such a manner as to emit sound audible at a distance of 50 feet or more from the boundary of the property from which it is being emitted or audible through partitions common to two or more residences within a building."

Sec. 14-5(7): "Talking, yelling, shouting, screaming, singing, or any other form of human sounds produced by any person or group of people between the hours of 10:00 p.m. and 6:00 a.m. in such a manner as to be audible across property boundaries or audible through partitions common to two or more residences within a building."

Sec. 14-5.1: "It shall be unlawful for any person to allow any animal or bird except farm animals in agricultural districts to create sound such that it is audible at least once a minute for ten consecutive minutes (i) inside the confines of the dwelling unit, house or apartment of another; or (ii) at 50 or more feet from the animal or bird."

Sec. 14-4(c)(3): "Unless County Code section 14-4(c)(2) applies, it is prohibited to operate or cause to be operated at nighttime any equipment used in construction, repair, alteration, or demolition work on buildings, structures, alleys, or appurtenances thereto in the outdoors in any residential zoning district within 100 yards of a lawfully occupied dwelling."

Sec. 14-2(a): "Any person who is found to have violated any provision of this chapter shall be guilty of a Class 4 misdemeanor for the first offense. Any person who is found to have violated any provision of this chapter within 365 days of the date of a previous conviction for a violation of this chapter shall be guilty of a Class 3 misdemeanor."

Sec. 14-2(b): "In lieu of the criminal penalties set forth in section 14-2(a), a violation of any provision of this chapter may be punishable by a civil penalty of not more than $250 for the first offense and $500 for the second offense. Any third or subsequent offense shall be subject to the penalties in 14-2(a) above."

Sec. 14-7(1): "The measurement of sound or noise shall be made with a Type 1 integrating sound level meter capable of C-weighted (and A-weighted) measurements which meet the standards prescribed by the ANSI; octave band capability is recommended for advisory analyses."

Sec. 22-42(a): "Refuse, recyclable materials, and yard waste removed by a refuse remover and food waste removed by a food waste remover shall be removed only between the hours of 5:00 a.m. and 9:00 p.m. and must be removed in a manner which does not create a nuisance or noise disturbance, or adversely affect the public health."

Quoted verbatim from the official text (Prince William County Code Chapter 14 (Noise), Sections 14-1 to 14-8 and Appendix A, with Section 22-42 (hours of refuse removal). Code of Ordinances, County of Prince William, Virginia, on Municode, "Codified through Ordinance No. 26-32, adopted June 2, 2026. (Supp. No. 46)", version dated Sep 3, 2026. Chapter 14 was rewritten by Ord. No. 89-143, 10-24-89. Its latest amendment is Ord. No. 25-62, Att., 10-28-25, eff. 5-1-26, the history note on Secs. 14-2, 14-3, 14-4, 14-5, 14-5.1, 14-6, 14-7 and 14-8 and on Appendix A. Sec. 14-4 also shows Ord. No. 23-07, 2-28-23, Ord. No. 24-02, Att., 2-20-24, Ord. No. 25-03, 2-4-25 and Ord. No. 25-15, 2-18-25. Sec. 14-1 shows only Ord. No. 89-143, and Sec. 14-7.1 (sport shooting ranges) shows Ord. No. 90-77, 6-5-90 and Ord. No. 05-43, 6-28-05. Sec. 22-42 shows Ord. No. 07-23, 4-3-07 and Ord. No. 20-55, 12-15-20. None of the four ordinances Municode lists as adopted but not yet codified (Nos. 26-48, 26-49, 26-56 and 26-67) amends Chapter 14 or Sec. 22-42. State law: Code of Virginia § 15.2-980 (civil penalties for violations of noise ordinances) and § 46.2-1049 (exhaust systems), read on law.lis.virginia.gov. Text read 2026-11-09.). Verified against the live code on 2026-11-09. Ordinances get amended — before acting on a specific provision, check the linked official code. This page is a plain-language summary, not legal advice.

How to file a noise complaint in Prince William County

For loud music, parties, barking dogs and other noise in Prince William County, call the Police Department's non-emergency line, (703) 792-6500, and 911 for an emergency. The Police Department's Noise Violations page lists that number to report a noise violation, its contact page says the line is available 24 hours, and the County's Public Safety Communications page names barking dogs and loud music as non-emergency calls. Steady tonal noise, the droning hum the County ties to industrial areas including data centers and large commercial buildings, goes a different way: since May 1, 2026 it is enforced by the County's property code enforcement staff (Neighborhood Services, a division of Public Works, (703) 792-7018), and the County's 311 Updates page says a service request for steady tonal noise is available through PWC 311 (dial 311 or (703) 792-4311, the online portal or the mobile app), adding that "all other noise issues should still be reported through the Police non-emergency line at 703-792-6500." What the police say they do: officers confirm the noise is in violation and try to identify the owner or lessee of the property; "Typically, a verbal warning for compliance is requested on the first complaint." On a later complaint a summons may be issued to the responsible party, and "The complainant of the noise violation may be needed as a witness for any court proceedings." Reports about animals also start at (703) 792-6500, and the County says the information is forwarded to an Animal Control Officer. Penalties (Sec. 14-2): a first offense is a Class 4 misdemeanor, and a violation within 365 days of a previous conviction is a Class 3 misdemeanor. In place of the criminal penalty a violation may be punished by a civil penalty of not more than $250 for the first offense and $500 for the second; a third or later offense goes back to the criminal penalties. The civil penalty does not apply to noise generated in connection with the business being performed on industrial property or railroads. Chapter 14 does not state the fine for either misdemeanor class. Variances: for construction work, apply to the director of public works; for anything else, to the chief of police; a decision can be appealed in writing to the county executive within ten days (Sec. 14-8). Sources: https://www.pwcva.gov/noise, https://www.pwcva.gov/department/police/contact-us, https://www.pwcva.gov/department/public-safety-communications/emergency-contact-information, https://www.pwcva.gov/department/311/311-updates, https://www.pwcva.gov/department/311, https://www.pwcva.gov/department/neighborhood-services, https://www.pwcva.gov/department/public-works/steady-tonal-noise and https://www.pwcva.gov/department/animal-services/animal-control-officers.

Step by step, with what to log and what to expect after you file: how to file a noise complaint in Prince William County. For the general playbook — documenting the problem, talking to a landlord or HOA, when 311 beats 911 — see the noise complaints guide.

Worth knowing

(1) Where it applies: Chapter 14 has no section saying where it applies and never mentions a town; its policy section speaks of the inhabitants of the county (Sec. 14-1). The County's 311 Updates page names four towns (Haymarket, Dumfries, Occoquan and Quantico) and sends reports of illegal signs there to the town government, but no County page read says whether Chapter 14 applies inside those towns, so this page does not say either; if you live in one, check with the town as well. The map linked from this page is Alexandria's, because Prince William County's own places are not in the map data; Alexandria's noise rules are not covered here. (2) The chapter changed on May 1, 2026: Ord. No. 25-62 (dated 10-28-25 and effective 5-1-26 in the history notes) is in the history note of every section except Secs. 14-1 and 14-7.1. The steady tonal limit in dB(C), the penalties section and the advisory octave band appendix all carry that ordinance in their history notes. Older summaries of the county's rules may describe the earlier text. (3) Two kinds of rule run side by side. Sound from any source is held to the Table 1 decibel limits unless the chapter excepts it, and the listed acts in Sec. 14-5 are violations whatever a meter reads: a sound production device audible 50 feet or more from the property boundary or through a shared wall is a violation at any hour (Sec. 14-5(6)). (4) Voices get a different clock from music. Human sounds audible across a property boundary or through a shared wall are banned only from 10:00 p.m. to 6:00 a.m. (Sec. 14-5(7)), while the 50-foot rule for sound production devices has no hours. (5) Animals: the test is sound audible at least once a minute for ten consecutive minutes, either inside another person's home or 50 or more feet from the animal or bird; farm animals in agricultural districts are excepted (Sec. 14-5.1). (6) Steady tonal noise: the definition adds that the level in any single C-weighted measurement found to exceed the Sec. 14-4(b) limits may not exceed plus or minus 3 dB, or plus or minus 5 dB when multiple sources on a site are perceptibly beating, wording that reads as a test of how steady the sound is (Sec. 14-3). The octave band table in Appendix A is advisory, and the County may measure octave bands for diagnosis and mitigation planning (Sec. 14-4(b)). (7) Home heating and cooling systems and radon systems are not subject to the nighttime levels, and the chapter has no general list of exemptions: the exceptions sit inside Sec. 14-4 (construction, public projects and utilities, emergency generators) and in single rules. (8) Construction near homes has a gap hour: the exemption from the decibel limits ends at 9:00 p.m., nighttime starts at 10:00 p.m., so from 9:00 to 10:00 p.m. the work is allowed only within the Table 1 limits, and after that it is prohibited until daytime (Sec. 14-4(c)). (9) County pages and the code: the Police Department's page says "Effective May 1, 2026, first-time violations are Class 4 Misdemeanors." The Public Works page says "Violations of Chapter 14 are structured to begin with graduated civil penalty fines followed by Class 4 and Class 3 misdemeanors for non-abated violations over time." The code makes a first offense a Class 4 misdemeanor and allows a civil penalty in its place for the first two offenses (Sec. 14-2); the code controls. The police page also lists a link called Exemptions among the noise ordinance sections; Chapter 14 has no section with that title (Sec. 14-8 is titled Variances, and the exceptions sit inside Sec. 14-4). (10) Meters: the definitions section describes a sound level meter as one meeting Type 1 or Type 2 standards, but the measurement section requires a Type 1 integrating meter (Secs. 14-3, 14-7). (11) Vehicles: sounding a horn except as an emergency or danger warning signal is a violation, as is noise from spinning tires, racing engines or the absence of a muffler or exhaust system conforming to Virginia Code §§ 46.2-1047 and 46.2-1049 (Sec. 14-5(1), (2)). The state exhaust law adds that chambered pipes are not an effective muffling device (Va. Code § 46.2-1049). (12) Advertising sound: by day, sound devices used for commercial advertising may play only music or human speech, may not be used within 100 yards of hospitals, schools, churches or courthouses, and may not be obscene (Sec. 14-5(4)). (13) Trash haulers: besides the 5:00 a.m. to 9:00 p.m. window, the director of public works can require a hauler to change its hours if a nuisance or noise disturbance is occurring in a community (Sec. 22-42(a)). (14) Sport shooting ranges cannot be held to noise standards stricter than those in effect when the range was approved or applied for (Sec. 14-7.1). (15) State law caps the civil penalty: Virginia Code § 15.2-980 lets a locality set civil fines for noise violations of no more than $250 for the first offense and $500 for each subsequent offense, and says the civil penalty does not apply to noise from business on industrial property or to railroads.

Document it before you report it

Some of Prince William County's limits are measured numbers, so a reading can help, and a dated log counts either way. Take a quick reading with the free online decibel meter — it runs in your browser and records nothing — and see the nearest city we map, on the Alexandria noise map. For time-stamped measurement history you can show a landlord or code officer, the app keeps a log.