Gas weed wackers are not illegal to own or use under California state law, but selling new ones has been banned statewide since 2024. If you already own a gas-powered string trimmer, you can keep using it. What you cannot do is walk into a California retailer and buy a brand-new gas model. And depending on your city, running the one you already own may still be off-limits.
What the Statewide Ban Actually Covers
Assembly Bill 1346, signed in 2021, directed the California Air Resources Board (CARB) to prohibit exhaust and evaporative emissions from new small off-road engines. The regulation took effect for engines produced on or after January 1, 2024.1California Legislative Information. Assembly Bill 1346 – Air Pollution: Small Off-road Engines Model year 2024 and later engines must meet zero-emission standards for nearly all covered equipment, including string trimmers, leaf blowers, and lawnmowers.2California Air Resources Board. CARB Approves Updated Regulations Requiring Most New Small Off-Road Engines Be Zero Emission 2024
The rule targets the sale of new equipment. It does not require anyone to stop using or hand in a gas trimmer they already own, and it does not prohibit buying or selling used gas equipment.
Using a Gas Weed Wacker You Already Own
This is the exception that matters for most people. California state law does not force you to retire your existing gas string trimmer. You can keep operating it until it wears out, subject to any local rules where you actually use it.3California Air Resources Board. 2021 Assembly Bill 1346 Small Off-Road Engines
That local piece is where people get caught out. The statewide ban is uniform. City ordinances are not.
City and County Bans on Use
While the state only regulates new sales, individual cities and counties can ban the use of gas-powered landscaping tools outright. Los Angeles, Berkeley, and South Pasadena are among the California cities with ordinances that restrict or prohibit gas-powered landscaping equipment. Several had leaf blower bans on the books long before AB 1346 passed.
The scope varies. Some ordinances ban all gas-powered landscaping equipment for residential and commercial use. Others limit certain equipment types or restrict operation to specific hours. Enforcement varies too: some cities issue citations, some work off complaints, and some pair enforcement with rebates for switching to electric tools.
Before you start up a gas weed wacker in California, check your city or county’s municipal code. Legality can literally change block to block if you cross a jurisdictional line.
Fines and Noise Citations
Penalty amounts are set by each city, so fines range widely. Some cities start modest and escalate sharply for repeat offenses, especially against commercial landscaping businesses running banned equipment across multiple job sites. Some ordinances also authorize permit suspensions for noncompliant businesses.
Noise rules can catch you separately. Gas string trimmers typically produce 90 to 100 decibels at the operator’s ear, well above the 65-decibel daytime limits many residential zones set for outdoor equipment. Even in a city without a gas-equipment ban, running a trimmer during restricted hours or above local decibel limits can bring a noise citation.
Narrow Exceptions Worth Knowing
Defensible Space
California requires property owners in designated wildfire-risk areas to maintain 100 feet of defensible space by clearing combustible vegetation.4California Legislative Information. California Public Resources Code 4291 The statute does not specify tools and does not explicitly exempt gas equipment from local bans. If you are in a remote high-risk zone with a local ban and no reliable charging, ask your city or county whether a fire-safety exception exists. Some jurisdictions are flexible when defensible-space compliance is on the line.
Federal and State Land
Local municipal bans generally do not apply on federal land such as national parks or forests. State-managed lands follow rules set by the managing agency. If you clear vegetation on public land under contract or permit, the authorizing agency’s requirements control the equipment you may use, not the local city ordinance.
Agriculture
Farming and agricultural maintenance sometimes fall under different frameworks than residential or commercial landscaping. Some local air districts offer exemptions or delayed timelines for agricultural users. If you run a farm or vineyard, contact your local air quality management district for current exemption status rather than assuming the general landscaping rules apply to you.
What It Costs to Switch
Professional-grade battery-powered string trimmers generally run between $330 and $400 for the tool alone, with high-capacity batteries adding to that. Several California programs offer financial incentives to offset the switch, with rebate amounts typically ranging from roughly $10 to $250 depending on the equipment and the sponsoring agency.
CARB has directed funding specifically toward helping professional landscapers and small businesses replace gas equipment.5California Air Resources Board. Small Off-Road Engine (SORE) Regulations Frequently Asked Questions If you are a commercial landscaper, check both CARB’s current programs and your local air district’s offerings. Stacking a state rebate with a local utility or air district rebate can meaningfully cut what you pay out of pocket.