California fire restrictions limit campfires, smoking, power equipment, fireworks, and vegetation around buildings during the state’s long dry season, and they are enforced through a mix of state law, federal regulation, and local ordinances. Violations can bring misdemeanor charges, federal fines, and civil liability for every dollar an agency spends putting out a fire you started. The specific rules shift as conditions worsen, so what’s legal in May may be banned by August.
What’s Banned During Fire Season
Once fire season is declared, recreational campfires and charcoal grills are generally prohibited outside developed campground sites with built-in fire rings. Smoking is prohibited in wildland areas where flammable debris covers the ground. These rules apply on state responsibility areas managed by CAL FIRE and on federal lands managed by the U.S. Forest Service and Bureau of Land Management, with slight variations between agencies.
Lawn mowers and string trimmers cause more fires than most people realize. A metal blade striking a rock can throw a spark into dry grass and ignite a fire within seconds. CAL FIRE recommends mowing only during the cooler morning hours before 10 a.m. and warns that mowers should never be used on dry weeds or grass, only on maintained lawns.1Ready for Wildfire. Equipment and Vehicle Use
Welding, grinding, and torch cutting in wildland areas are frequently suspended or restricted during high-risk periods. When this kind of hot work is allowed, operators must maintain cleared areas around the work site and keep firefighting tools and water immediately accessible.
Spark Arresters on Engines
Under Public Resources Code 4442, you cannot operate any gas-powered engine on forest-covered, brush-covered, or grass-covered land unless it has a working spark arrester. The arrester must catch carbon particles larger than 0.0232 inches before they leave the exhaust, and it cannot be positioned where heat or flame from the exhaust could ignite nearby vegetation.2California Legislative Information. California Code Public Resources Code 4442
Some vehicles are exempt. Trucks, buses, and passenger vehicles other than motorcycles are exempt if the exhaust has a standard muffler. Turbocharged engines are exempt as long as all exhaust passes through the turbine wheel with no atmospheric bypass. Motor vehicles in permitted, organized racing events on closed courses are also excluded.2California Legislative Information. California Code Public Resources Code 4442
The practical reach of this law is wide. Chainsaws, generators, dirt bikes, ATVs, and most handheld landscaping equipment all fall under it the moment you take them onto wildland.
Restriction Stages and Red Flag Warnings
CAL FIRE and the U.S. Forest Service escalate fire restrictions in two stages as conditions worsen. Stage I restrictions typically limit campfires and charcoal to designated recreation sites with fire rings, ban smoking outside enclosed vehicles or buildings, and restrict chainsaw use to certain hours with required firefighting tools on hand. Stage II goes further, often eliminating open-flame exceptions entirely, prohibiting campfires even in developed sites, banning stove fires that aren’t fueled by pressurized liquid or gas, and restricting motorized travel to paved roads.
Public Resources Code 4423.1 lets the CAL FIRE director (or designee), county fire wardens with the director’s approval, and federal land managers suspend burning permits by proclamation whenever conditions demand it.3California Legislative Information. California Code, Public Resources Code PRC 4423.1 – Burning Permits
Red Flag Warnings are issued separately by the National Weather Service when weather conditions align to create extreme fire behavior. General criteria include sustained winds of 15 mph or greater, relative humidity at or below 25 percent, and temperatures above 75°F, though specific thresholds vary by local NWS forecast office.4NOAA’s National Weather Service. Glossary – Red Flag Warning During a Red Flag Warning, land agencies curtail public activities quickly and pre-position crews. Even a small ignition source can turn into a fast-moving fire within minutes.
Check the current restriction level before you light anything, use power tools in brushy terrain, or plan a trip into state or federal land.
Defensible Space Around Your Home
If you own or occupy a building in a state responsibility area, Public Resources Code 4291 requires you to maintain 100 feet of defensible space around every structure on your property, up to the property line. The law divides this space into zones with increasing intensity of vegetation management as you get closer to the building.5California Legislative Information. PRC 4291
The most critical area is the ember-resistant zone within 5 feet of the structure, including any attached deck. In that zone you must eliminate materials embers could ignite. Between 5 and 30 feet, the law calls for aggressive thinning and spacing of vegetation. From 30 to 100 feet, you still need to manage fuels so a wildfire would be unlikely to reach the structure, though the standard is somewhat less strict.5California Legislative Information. PRC 4291
You also have to:
- Remove any tree branches that extend within 10 feet of a chimney or stovepipe outlet.
- Keep trees and shrubs adjacent to or overhanging structures free of dead or dying branches.
- Clear leaves, needles, and other plant debris from the roof.
These rules are enforceable law, not suggestions, and noncompliance can bring fines. They are also the single most effective step a homeowner can take to keep a structure standing through a wildfire.
California Campfire Permits
You need a California Campfire Permit before building a fire on lands managed by CAL FIRE, the U.S. Forest Service, or the Bureau of Land Management. The permit is free at PreventWildfireCA.org.6Ready for Wildfire. Permits
The application asks for your name, mailing address, email, the location of the planned fire, and the start and end dates of your trip, which define the permit’s active window.7Prevent Wild Fire. Campfire Permit The system generates a PDF you can print or save on your phone, and you must have it with you at the fire site. Rangers and law enforcement can ask to see it, and failure to produce one can result in an order to extinguish your fire on the spot.
A valid permit does not override a restriction. Campfires are only allowed when they haven’t been suspended under PRC 4423.1.3California Legislative Information. California Code, Public Resources Code PRC 4423.1 – Burning Permits Check current conditions for the area you’re visiting before you strike a match.
Fireworks
California bans all fireworks except those labeled “Safe and Sane,” which bear a specific state seal. Anything without that seal is illegal to possess, sell, or use. Licensed retailers can only sell Safe and Sane fireworks during a narrow window: noon on June 28 through noon on July 6.8California Legislative Information. California Code, Health and Safety Code HSC 12599
Many cities and counties ban all fireworks entirely through local ordinances, even during that window. Check your local rules before buying or lighting anything. Possessing dangerous (non-Safe and Sane) fireworks is a criminal offense under Health and Safety Code 12700, with penalties ranging from misdemeanor fines and up to a year in county jail for small quantities to felony charges with state prison time and fines up to $50,000 for large stockpiles.
If your fireworks start a wildfire, you face the same civil liability and suppression cost recovery as any other ignition source, regardless of whether the fireworks themselves were legal.
Drones Near Wildfires
Flying a drone near an active wildfire is a federal offense. When a drone enters the airspace around a wildfire, fire agencies have to halt all aircraft until it is cleared, sometimes for hours, and people have died because tankers and helicopters were forced to stand down while private drones flew overhead.
Federal law authorizes the FAA to impose civil penalties of up to $20,000 against any drone pilot who interferes with wildfire suppression, law enforcement, or emergency response operations. Interfering with firefighting on public lands is also a federal crime punishable by up to 12 months in prison. These penalties apply whether or not a Temporary Flight Restriction has been formally posted for the area.9Federal Aviation Administration. Drones and Wildfires Toolkit
Penalties for Violating Fire Restrictions
Criminal Charges
If a fire starts from equipment you’re using and escapes the area where it originated, PRC 4435 treats that as presumptive evidence of negligence. If your negligence can be identified as the cause, you are guilty of a misdemeanor.10California Legislative Information. California Code Public Resources Code 4435 Misdemeanors in California carry a maximum of six months in county jail and fines that vary with the offense and the resulting damage. More serious fire-related crimes, like arson or recklessly causing a fire that burns an inhabited structure, are charged under the Penal Code and can be prosecuted as felonies with state prison time.
On federal land, 18 U.S.C. § 1856 adds another layer: anyone who kindles a fire on federal land and lets it burn unattended, escape, or spread can face up to six months in federal prison and additional fines.11Office of the Law Revision Counsel. 18 USC 1856 – Fires Left Unattended and Unextinguished
Civil Cost Recovery
CAL FIRE actively pursues civil cost recovery against individuals determined to be responsible for starting a fire. You can be held liable for the total suppression costs incurred by every responding agency, including helicopter time, bulldozer crews, firefighter overtime, and equipment damage. These costs routinely reach hundreds of thousands of dollars for moderate fires and can run into the millions for major incidents. Add in potential lawsuits from affected property owners, and a single lapse in judgment can shape someone’s finances for years.