Noise from Specific Sources in Prince William County, VA (2026)

Prince William County Code Sec. 14-4(a)(2)

(2)Heating and cooling systems, including but not limited to air conditioners and heat pumps, and Radon systems serving a residential dwelling(s) shall not be subject to the nighttime levels enumerated in Table 1 or in subsection (b) below.

PWC Code § 14-5(8)

Playing, operating or permitting to be operated, any sound production device mounted on or in any motor vehicle while the motor vehicle is operated or parked on a public street alley, parking lot open to the public, or public park, and which emits sound audible from outside the motor vehicle at a distance of 50 feet or more. The provisions of this subsection shall not apply to sound emissions f...

Prince William County Code Sec. 14-4(d)

(d)Emergency Generators.(1)Emergency generators are exempt from the limits under Table 1 and subsection (b) when running during electrical grid outages, equipment failures, or at the request of a utility.(2)Exercising of emergency generators shall only be conducted during the daytime, during which time the limits in Table 1 apply. The limits in subsection (b) do not apply to such exercising. Th...

PWC Code § 14-5(3)

Operating, loading or unloading any vehicle, including but not limited to trucks, or the opening and destruction of bales, boxes, crates and containers in the outdoors in zones other than industrial within 100 yards of a lawfully occupied dwelling between the hours of 10:00 p.m. and 6:00 a.m.

PWC Code § 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. Maximum permissible C-weighted sound level at the receiving property: Daytime 73 dB(C); Nighttime 68 dB(C). The limits above may not be exceeded over a five-minute interval.