Lassen County, CA Noise Ordinances: Leaf Blower Rules (2026)

Lassen County Code Chapter 9.65 does not contain a dedicated leaf-blower or gardening-equipment provision and does not ban gas-powered blowers or set a separate horsepower, time-of-day or model restriction for them. Instead, powered yard equipment is regulated through the general standard in Section 9.65.040, which makes it a public nuisance to create noise exceeding the one-hour average sound-level limits in Table 1, measured at the property line. For residential property those 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.). Because the limit is a one-hour average rather than an instantaneous reading, ordinary daytime use of a blower or mower is generally allowed, while sustained operation in the early morning or late evening can breach the lower nighttime limits. Statewide, the California Air Resources Board prohibits the sale of new gas-powered small off-road engines (including most new leaf blowers and lawn mowers) under regulations effective with model year 2024, but that is an emissions rule, not a county noise rule.