Lewisville uses a plainly-audible standard rather than fixed decibel limits under Ch. 18. No dBA thresholds are codified; officers may use sound meters as evidence.
Lewisville Code Chapter 18 relies on a plainly-audible test for noise enforcement rather than establishing specific decibel (dBA) thresholds. This means an officer at the property line of a complaining party determines whether the noise is plainly audible, without requiring a sound-level meter reading. While Lewisville Police may use handheld sound meters as supplementary evidence, the city does not publish fixed daytime or nighttime dBA limits in the ordinance. This approach is common among DFW-area cities and is simpler to enforce than metered standards. Texas has no state-level decibel regulations for residential noise. For industrial operations, TCEQ may apply facility-specific noise conditions in air quality permits. Residents in neighborhoods near I-35E, the BNSF rail corridor, and DFW flight paths experience elevated ambient noise levels, which officers consider when evaluating complaints. The lack of fixed dBA limits means enforcement is subjective and depends on the responding officers assessment.
Class C misdemeanor based on plainly-audible determination; fine up to 500 dollars.
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Lewisville, TX
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