Lassen County, CA Noise Ordinances: Quiet Hours (2026)

Lassen County adopted its current Noise Ordinance, Chapter 9.65 of the Lassen County Code, by Ordinance No. 2021-004 on December 14, 2021. The chapter applies to the unincorporated area of the county - communities such as Janesville, Westwood, Herlong, Bieber, Standish, Doyle, Litchfield and Milford (the City of Susanville has its own code). Section 9.65.040 makes it a public nuisance to cause or allow noise that exceeds the one-hour average sound-level limits in Table 1, measured at the property line of the property producing the noise or at any location on a receiving property. For residentially used property the published limits are 65 dBA (7 a.m.-7 p.m.), 60 dBA (7 p.m.-10 p.m.) and 55 dBA (10 p.m.-7 a.m.). The county's 2021 Noise Element confirms that noise from all sources is limited to no greater than 65 dBA CNEL at noise-sensitive receivers. The noise control officer is the Planning and Building Services Director (or designee); the Sheriff has primary responsibility for the disturbance-type prohibitions in Sections 9.65.050 and 9.65.060.