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Hamilton, NJ Noise Ordinances: Decibel Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Daytime outdoor residential limit
65 dB(A), 7 a.m.-10 p.m.
Nighttime outdoor residential limit
50 dB(A), 10 p.m.-7 a.m.
Indoor residential night limit
40 dB(A)
Impulsive sound cap
80 decibels
Maximum civil penalty
$2,000 per offense

Summary

Hamilton's noise chapter sets hard decibel ceilings by receiving property and time of day. Outdoors at a residential line the cap is 65 dB from 7:00 a.m. to 10:00 p.m. and 50 dB overnight; indoors the caps drop to 55 and 40 dB respectively.

No person shall cause, suffer, allow, or permit the operation of any source of sound on any source property listed in § 311-3A above in such a manner as to create a sound level that equals or exceeds the sound level limits set forth in Table I, II or III when measured at or within the real property line of any of the receiving properties listed in Table I, II or III except as specified in § 311-6B. ... Residential property or residential portion of a multi-use property / 7:00 a.m. to 10:00 p.m. / 65 [dB] ... 10:00 p.m. to 7:00 a.m. / 50 [dB]

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4984352; v35 updated 2026-06-16; through 06-16-2026).

Full Breakdown

Township Code Chapter 311 regulates sound measured at the real property line of the property receiving it, not at the source. ; commercial facilities, nonresidential portions of multi-use properties, and community service facilities are capped at 65 dB(A) around the clock. Table II applies the same day/night structure indoors, at 55 dB(A) daytime and 40 dB(A) nighttime for residential receptors, and 55 dB(A) around the clock for commercial receptors, but only when the source and receptor share a common or abutting wall, floor, ceiling, or parcel.

5 Hz through 8,000 Hz) for tonal or narrow-band noise complaints that a single A-weighted reading cannot capture. , and the same 80-decibel cap applies overnight if the impulse occurs fewer than four times per hour; four or more repetitions in an hour are instead measured as continuous sound under Tables I and II. C. 7:29-2, and indoor cross-property measurements must be taken at least three feet from any wall, floor, or ceiling with competing household sound sources shut off. Construction and demolition activity is exempt from the Table I-III limits, but is separately time-restricted under § 311-9C.

Violations & Fines

Noise Control Officers (health-agency staff certified under N.J.A.C. 7:29) and Noise Control Investigators enforce the tables by issuing a notice of violation or a notice of penalty assessment. Civil penalties run up to $2,000 per offense under N.J.S.A. 40:49-5, with each continuing day a separate offense; recipients of a penalty assessment can request a hearing in municipal court.

Frequently Asked Questions

What decibel level is legal at night in Hamilton Township?
Outdoors at a residential property line, sound may not equal or exceed 50 dB(A) between 10:00 p.m. and 7:00 a.m. under Table I of § 311-7. The daytime standard, 7:00 a.m. to 10:00 p.m., is 65 dB(A). Indoor readings across a shared wall or parcel use lower thresholds of 40 dB(A) at night and 55 dB(A) by day.
Where is sound measured for a noise complaint?
At or within the real property line of the receiving property, not at the source, per § 311-7A. Indoor measurements require the investigator to stand at least three feet from any wall, floor, or ceiling and follow the state protocol in N.J.A.C. 7:29-2.
Are construction sites exempt from the decibel tables?
Yes. Section 311-4C exempts construction and demolition activity from the Table I-III sound-level limits, though § 311-9C still restricts the hours construction and demolition work can occur.

Sources & Official References

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