Unincorporated Cameron County sets no decibel limits — Texas counties can't pass noise ordinances. The state uses an 85 dB threshold in the disorderly-conduct presumption. Cities set real limits: Brownsville allows 63 dB(A) daytime / 50 dB(A) overnight in residential zones.
There is no county decibel standard in unincorporated Cameron County. The only statewide numeric threshold is in Penal Code 42.01(c): noise 'is presumed to be unreasonable if the noise exceeds a decibel level of 85 after the person making the noise receives notice from a magistrate or peace officer that the noise is a public nuisance.' Cities set enforceable limits by zone: Brownsville caps residential-zone sound at 63 dB(A) from 8 a.m. to midnight and 50 dB(A) from midnight to 8 a.m., measured at the property line (Sec. 46-78(c)). If you need a specific decibel cap, look to your city code — the county has none.
State: after notice, exceeding 85 dB supports a Class C disorderly-conduct charge (up to $500). City limits carry municipal fines. No county decibel penalty.
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