New Orleans sets specific decibel limits by zoning district under Chapter 66 of the Municipal Code. Residential districts allow approximately 60 dB(A) daytime and 55 dB(A) nighttime, with the French Quarter Vieux Carre districts subject to special standards reflecting their unique mix of entertainment and residential use.
Chapter 66, Article IV of the New Orleans Code of Ordinances establishes maximum permissible sound levels measured in A-weighted decibels (dB(A)) at the receiving property line. The limits vary by zoning district, time of day, and the nature of the source. The general framework distinguishes between residential, commercial, mixed-use, and industrial zones, with the lowest allowable levels in residential areas at night.
Typical residential daytime (7 a.m. to 10 p.m.) limits are around 60 dB(A), dropping to roughly 55 dB(A) at night. Commercial daytime limits are generally 70 to 75 dB(A) with nighttime levels around 65 dB(A). Industrial districts allow up to 80 dB(A). The Vieux Carre Entertainment (VCE) and Vieux Carre Commercial (VCC) districts have customized rules that reflect the area's character, with daytime limits around 70 dB(A) and stricter limits late at night.
Measurements are taken with a calibrated Type 1 or Type 2 sound level meter at the receiving property line, not at the source. Sounds that contain pure tones, impulsive characteristics, or substantial low-frequency energy may be subject to penalty corrections that effectively lower the allowable level. Enforcement is handled by the Department of Safety and Permits sound enforcement unit, with NOPD providing after-hours response.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact New Orleans code enforcement directly for current fines, enforcement procedures, and hearing options.
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