3 rules for unincorporated San Bernardino County, California.
Verified from official government sources
HVAC units in unincorporated San Bernardino County must meet Title 8 residential property-line limits (55 dBA day, 45 dBA night). Title 24 Part 6 requires exterior units to publish sound ratings.
Bars and nightclubs in unincorporated San Bernardino County need a Conditional Use Permit. Amplified music must meet Title 8 residential limits (45 dBA at night). California Business and Professions Code 25612.5 also applies.
Standby and portable generators in unincorporated San Bernardino County must meet Title 8 limits (45 dBA night residential). PSPS and emergency use is exempt. SCAQMD Rule 1470 permits stationary units over 50 hp.
South Coast Air Quality Management District (SCAQMD) Rule 1470 — Requirements for Stationary Diesel-Fueled Internal Combustion and Other Compression Ignition Engines (Amended October 1, 2021), subdivisions (a) Applicability and (c)(2)(C)(i) Hours of Operating Requirements
This rule shall apply to any person who owns or operates a stationary CI engine in the South Coast Air Quality Management District with a rated brake horsepower greater than 50 (>50 bhp)... EMERGENCY STANDBY ENGINE means a stationary engine that... is installed for the primary purpose of providing electrical power or mechanical work during an emergency use and is not the source of primary power...
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