Rocklin, CA Noise Ordinances: Amplified Music & Outdoor Sound (2026)

Rocklin Municipal Code § 9.52.020(A) defines "amplified sound" as any sound or noise, including the human voice, increased in volume or intensity by electrical power. Section 9.52.030(B)(2) applies that definition to residential activity: miscellaneous activities at residential structures, expressly including amplified sound alongside automotive repair or furniture work, may not generate any discernable noise at the property lines of the source residence before 7:00 a.m. or after 9:00 p.m. on weekdays, or before 8:00 a.m. or after 9:00 p.m. on weekends. Subsection (B)(3) sets a separate, more permissive standard for commercial zones: an amplified sound system providing music for an outdoor seating or activity area is allowed, but the music must be a muted background noise and cannot be audible from a distance of one hundred feet from the seating or activity area line, on a schedule running until 10:00 p.m. on weekdays and weekends (starting 7:00 a.m. weekdays, 8:00 a.m. weekends).

Because the standard is "discernable" rather than a decibel meter reading, an officer's or a neighbor's ability to identify the sound's source at the boundary line is what the chapter measures. Chapter 9.52 was adopted by Ordinance No. 1197, effective January 27, 2026, replacing the city's prior noise provisions.