Industrial noise limits in San Bernardino follow Development Code 19.20.030 standards, with exterior caps of 70 to 75 dBA depending on zone. SCAQMD Rules 444 and 445 regulate stationary sources.
San Bernardino Municipal Code Chapter 8.54 and Development Code section 19.20.030(15) set maximum allowable exterior noise levels by zoning district. Industrial zones typically allow up to 70 to 75 dBA at the property line, while commercial zones cap at about 65 dBA and residential at 55 dBA daytime. Where an industrial use abuts a residential district, the lower residential standard applies at the shared boundary, and SBMC 8.30.020(L) adds a general nuisance backstop. Rail and warehouse operations along the Cajon Pass corridor and the BNSF intermodal facility are significant noise sources covered by this framework. Federal preemption covers interstate rail operations under the Interstate Commerce Commission Termination Act, limiting direct city control of trains. SCAQMD Rules 444 (open burning) and 445 (wood-burning devices) add regional air rules that complement noise limits for industrial operators.
Citation, stop-work, or conditional use permit revocation for repeated exceedances.
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Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle industrial noise.
See how San Bernardino's industrial noise rules stack up against other locations.
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