San Bernardino County, CA Noise Ordinances: Amplified Music & Events (2026)

San Bernardino County Code Title 8 Division 3 establishes exterior noise standards measured at the property line of the receiving residential use. Typical residential zone limits are 55 dBA from 7 AM to 10 PM and 45 dBA from 10 PM to 7 AM, with higher limits in commercial and industrial zones. Amplified music from backyard parties, weddings, pool events, and outdoor gatherings in unincorporated communities like Mentone, Oak Hills, Crestline, Pioneertown, and Joshua Tree must stay under these caps. Short-term bumps of 5-10 dB may be allowed for brief periods. Outdoor events expecting to exceed residential limits must apply for a Special Event Permit through Land Use Services, which may impose a sound plan, end times, and complaint hotlines. California Environmental Quality Act (CEQA) reviews use the Community Noise Equivalent Level (CNEL) or day-night average (Ldn) for long-term land use compatibility rather than instantaneous measurement. In high-tourism desert communities around Joshua Tree and Yucca Valley, short-term vacation rental amplified music is often subject to additional good-neighbor conditions tied to the STR permit.