Fullerton, CA Noise Ordinances: Outdoor Music (2026)

Outdoor music is regulated through the same Noise Control ordinance as indoor amplified music, with the music-specific 5 dB(A) reduction applied. Under Section 4-6-5, the baseline exterior limits are 55 dB(A) (7 a.m.-10 p.m.) and 50 dB(A) (10 p.m.-7 a.m.), but because music is one of the enumerated noise types, those drop to roughly 50 dB(A) by day and 45 dB(A) at night when measured on neighboring residential property. For organized events, Section 4-6-7(b) provides that 'outdoor gatherings, public dances and shows' are exempt from the noise standards only if those events 'are conducted pursuant to a license issued by the County of Orange pursuant to Title 5 of the Codified Ordinances.' Without that license, an outdoor concert or amplified event must keep within the music-adjusted residential limits or be cited. Section 4-6-7(a) and (c) separately exempt activities on public or private school grounds and on publicly owned parks and playgrounds, so school and public-park events have a degree of latitude that private backyard events do not. The graduated duration allowances in Section 4-6-5(b) still apply, capping how long any exceedance can last.