Industrial Noise: Rialto vs San Bernardino
How do industrial noise rules compare between Rialto, CA and San Bernardino, CA?
Rialto and San Bernardino have similar restriction levels.
Rialto, CA
San Bernardino County
Rialto Municipal Code Ch. 9.50 (Noise Control) sets exterior noise standards measured at the property line of the receiving land use. Industrial sources adjacent to residential receptors are limited by the residential receiving-zone standard (typically 65 dBA daytime / 55 dBA nighttime). SCAQMD Rule 2305 (Warehouse ISR) layers regional NOx/PM mitigation obligations on warehouses ≥100,000 sq ft.
View full Rialto rules →San Bernardino, CA
San Bernardino County
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.
View full San Bernardino rules →Key Facts Comparison
| Fact | Rialto | San Bernardino |
|---|---|---|
| Ordinance chapter | Rialto MC Title 9 Ch. 9.50 (Noise Control) | - |
| Measurement point | Property line of receiving (impacted) land use | - |
| Truck idling limit | 5 minutes (13 CCR §2485) | - |
| Warehouse ISR threshold | 100,000 sq ft (SCAQMD Rule 2305) | - |
| Code | - | Development Code 19.20.030(15) |
| Industrial Cap | - | 70 to 75 dBA exterior |
| Abutting Residential | - | 55 dBA at shared boundary |
| Regional Rules | - | SCAQMD Rules 444 and 445 |
Highlighted rows indicate differences between cities.
Rialto FAQ
Who do I call about a noisy warehouse next to my home?
Rialto Community Compliance (Code Enforcement) for the noise ordinance; SCAQMD 1-800-CUT-SMOG (1-800-288-7664) for diesel and idling.
Are loading docks exempt at night?
No. Rialto MC Ch. 9.50 applies 24/7; nighttime limits are stricter at residential receptors.
San Bernardino FAQ
Who regulates train noise?
Rail operations are largely federally preempted under the ICCTA; local limits apply to stationary yard activity but not through-trains.
What limit applies where industry meets homes?
At a shared industrial-to-residential boundary, the lower residential limit of about 55 dBA day applies.
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