Cary NC Noise Ordinance: Decibel Limits, Hours, and Penalties

The Cary NC noise ordinance, found in Chapter 22 of the Town Code, limits most sound reaching an occupied home to 60 decibels and tightens amplified-sound limits to 50 or even 40 decibels after 9:00 p.m. The rules cover construction, car stereos, parties, barking dogs, and unmuffled engines, each with its own standard. A violation is a Class 3 misdemeanor under North Carolina law and typically carries a fine.

The Decibel Limits That Apply to Homes

Section 22-107 makes it unlawful to create any sound above 60 dB(A) that affects an occupied residential structure or unit other than your own. This is the ordinance’s broadest rule and it applies regardless of the time of day or the type of sound. Sixty decibels is roughly the volume of a normal conversation, so a neighbor’s generator, pool pump, or outdoor party registering above that at their property line is already a potential violation, even at noon.¹

Amplified sound sits under a separate schedule in Section 22-109, and the limit depends on where the sound is coming from and the time.

Restaurants, Bars, and Private Clubs

Amplified sound from entertainment venues cannot exceed 65 dB(A) at an occupied home between 9:00 a.m. and 9:00 p.m. The ceiling drops to 55 dB(A) from 9:00 p.m. to 2:00 a.m., then to 40 dB(A) from 2:00 a.m. to 9:00 a.m.²

Home Speakers, Parties, and Everything Else

For all other amplified sound, including house parties and backyard speakers, the limit is 60 dB(A) between 9:00 a.m. and 9:00 p.m., dropping to 50 dB(A) from 9:00 p.m. to 9:00 a.m. The 9:00 p.m. cutoff is effectively Cary’s quiet hours for amplified noise.²

Speakers on Streets and in Parks

Amplified sound on a public sidewalk, street, or in a park is limited to 60 dB(A) measured 50 feet or more from the speaker during the day, falling to 50 dB(A) at the same distance after 9:00 p.m.²

Construction Hours

Construction, drilling, and demolition work is prohibited between 9:00 p.m. and 7:00 a.m. on weekdays and Saturdays. Sunday construction is banned entirely. The only exceptions are emergency work and projects performed by or on behalf of the Town of Cary.³

Emergency work here means activity needed to prevent or address physical harm or imminent property damage. A contractor running behind schedule does not qualify. If you hear heavy equipment outside those hours on a weekday, or at any time on a Sunday, you have grounds for a complaint.

Sounds That Are Banned Regardless of Volume

Section 22-106 prohibits several sounds outright, no decibel reading required:

Honking a vehicle horn for any reason other than a danger warning, or for an unreasonable length of time.
Gongs, bells, or sirens on any vehicle except authorized emergency vehicles.
Running a motor vehicle, boat engine, or stationary engine without a muffler or equivalent device to suppress loud or explosive sounds.
Operating compressed-air tools unless the sound is effectively muffled.
Building-mounted chimes, bells, or gongs that disturb nearby residents. Religious bells are exempt.
Shouting by peddlers or hawkers that disturbs a residential neighborhood.
Fireworks and pyrotechnics without a town permit.

Section 22-108 adds two vehicle rules: operating a motor vehicle in a way that creates unreasonably loud and disturbing noise, and playing a vehicle audio device loud enough to be plainly audible 30 feet away.⁴ If your exhaust has been modified or the muffler bypassed, you are in violation whether or not anyone has complained.

The 15-Minute Rule for Barking Dogs

Cary handles animal noise in two places. The general nuisance rule in Section 22-106 prohibits keeping any animal that, through frequent or long-lasting noise, disturbs the comfort of people nearby.³

The sharper rule sits in Section 6-71. Any sound from a cat or dog that lasts more than 15 minutes within any 30-minute window is automatically treated as an annoying sound.⁵ A dog that barks continuously for 16 minutes meets the threshold. So does intermittent barking that adds up to more than 15 minutes over a half-hour. Responsibility falls on the owner or person in charge of the animal.

How Officers Measure the Noise

Readings use the A-weighted decibel scale on meters that meet American National Standards Institute specifications. The reading is taken at or within the property line of the person making the complaint, not at the source. For apartments and condos, where property lines are hard to pin down, measurements come from a point touching the outside of the complainant’s unit, or from inside the unit if an outdoor reading is impractical.⁶

Each reading is averaged over one minute. You violate the ordinance if that one-minute average exceeds the applicable limit, or if the sound spikes more than three decibels above the limit at any point during the measurement window.⁶

What’s Exempt

Section 22-105 carves out exceptions that otherwise would violate the ordinance. None apply to sound that creates a risk of serious bodily harm. The exempt categories include emergency vehicles, safety signals and alarms, emergency work, religious bells and chimes, outdoor athletic events scheduled by the Town or by schools, religious institutions, or organized leagues, lawful parades and demonstrations held under permit (capped at two hours in any 24-hour period), and community concerts, street fairs, and other town-sponsored events.⁷ Maintenance of emergency equipment like generators is also exempt, but only on weekdays between 9:00 a.m. and 4:00 p.m., at 80 dB(A) or below, positioned as far from the property line as possible, and with factory mufflers intact.

Section 22-110 lets the Town issue a sound permit to exceed the standard limits for a specific event, but no permit can authorize sound above 70 dB(A) at the property line of the nearest occupied home.⁸

How to Report a Violation

For complaints about people, vehicles, or amplified sound, call the Cary Police Department non-emergency line at (919) 469-4012.⁹ Ongoing animal-noise issues can also be routed through Cary’s 311 service line for non-emergency requests.¹⁰ Responding officers may take sound-level readings with calibrated meters to confirm whether the noise exceeds the applicable limit.

For a barking-dog complaint, write down the dates, times, and approximate duration of each incident. A pattern of repeated disturbances is far easier to act on than a single call.

Penalties

Under North Carolina General Statute 14-4, violating a town ordinance is a Class 3 misdemeanor. The default fine is up to $50 unless the ordinance expressly authorizes a higher maximum, in which case the fine can reach $500.¹¹ A Class 3 misdemeanor can also carry up to 20 days in jail, though that is reserved for people with four or more prior convictions. First-time offenders with a clean record face only a fine.

Enforcement usually starts with a warning that gives the person causing the noise a chance to fix the problem. Repeated violations or deliberate disregard are what tend to escalate to formal charges. Each separate incident can be treated as its own violation, so a neighbor who repeatedly plays loud music after 9:00 p.m. can face multiple fines.

1
Town of Cary. Cary Code of Ordinances – Sec 22-107 Sounds Impacting Residential Life
2
Town of Cary. Cary Code of Ordinances – Sec 22-109 Amplified Sound
3
Town of Cary, North Carolina. Cary Code of Ordinances – Sec 22-106 Prohibited Sounds
4
Town of Cary. Cary Code of Ordinances – Sec 22-108 Motor Vehicles
5
Town of Cary, North Carolina. Cary Code of Ordinances – Sec 6-71 Nuisance Animals
6
Town of Cary, North Carolina. Cary Code of Ordinances – Sec 22-104 Noise Measurement
7
American Legal Publishing. Cary Code of Ordinances – Sec 22-105 Exceptions
8
Town of Cary. Cary Code of Ordinances – Sec 22-110 Permits
9
Town of Cary. Frequently Asked Questions
10
Town of Cary. 311
11
North Carolina General Assembly. North Carolina General Statutes – GS 14-4 Violation of Local Ordinances Misdemeanor