California gas can laws require every portable fuel container sold in the state to be certified by the California Air Resources Board (CARB), limit home gasoline storage to five-gallon containers under the state fire code, and impose civil penalties of up to $500 per non-compliant can, with misdemeanor fines reaching $5,000 for serious air pollution violations. The rules have been in force since July 1, 2007, and they govern how cans are built, sold, stored, and moved.
What a Legal Gas Can Looks Like
Since July 1, 2007, no one may sell, offer for sale, or manufacture for sale in California any portable fuel container or spout that hasn’t been certified by CARB and covered by an Executive Order.1Legal Information Institute. California Code of Regulations Title 13 Section 2467 – Applicability The rule covers containers with a nominal capacity of ten gallons or less designed for receiving, transporting, storing, and dispensing fuel or kerosene.2California Air Resources Board. Final Regulation Order for Portable Fuel Containers
A certified can has to meet several performance standards:3California Air Resources Board. Enforcement Advisory 189 – Manufacturers and Distributors of Portable Fuel Containers and Spouts
- An automatic shut-off that stops fuel flow before the target tank overflows.
- A self-sealing spout that closes when removed from the tank and stays closed when not in use.
- A single opening used for both filling and pouring.
- Low permeation walls that keep fuel vapor loss under 0.4 grams per gallon per day.
- Minimum flow rates that vary by container size, so the spout actually works and you aren’t tempted to remove it.
When you buy a can in California, look for a “CARB compliant” label on the packaging. If it doesn’t carry that mark, it almost certainly isn’t certified for sale here. Big retailers in the state stock only compliant models; the problems usually start with online orders or cans bought out of state. Compliant containers are easy to find in sizes from one gallon up to five.
Cans That Fall Outside the CARB Rule
A short list of container types is exempt from the portable fuel container regulation:4Legal Information Institute. California Code of Regulations Title 13 Section 2467.3 – Exemptions
- Metal safety cans that meet federal OSHA workplace standards under 29 CFR 1926. These are the heavy-gauge cans with spring-loaded lids, flame arresters, and pressure relief valves used in commercial and industrial settings.
- Any container with a capacity of one quart or less.
- Rapid-refueling devices of four gallons or more built for sanctioned off-highway motorsports.
- Portable outboard marine fuel tanks that feed an outboard engine through a hose.
- Closed-system containers used exclusively for remote-control model airplanes.
The regulation targets manufacturers, distributors, and sellers rather than end users, so there is no explicit ban on continuing to use a pre-2007 can you already own. The old can still lacks the vapor controls and spill protections of a compliant one, and if it contributes to a spill or vapor release you can still be cited under fire code rules.
Storing Gasoline at Home
California Fire Code Chapter 57 governs flammable and combustible liquid storage. Gasoline is a Class I flammable liquid, the most restrictive category. The code caps portable Class I containers at five gallons each, so even though CARB certifies cans up to ten gallons, your practical ceiling for gasoline at home is five.
Fire inspectors look for a few basic storage habits:
- Keep containers in a cool, well-ventilated space out of direct sunlight.
- Keep gasoline away from ignition sources: pilot lights, water heaters, electrical panels, space heaters.
- Don’t store gasoline inside living spaces. A detached garage or shed is safer than an attached garage, because vapor buildup in an attached structure can reach ignition sources inside the house.
- Keep containers tightly sealed any time you aren’t actively pouring.
- Store only what you actually need for your mower, trimmer, or generator.
Local fire departments can set stricter policies than the statewide code, so check with your jurisdiction if you plan to keep more than a can or two on hand.
Transporting Gasoline in Your Vehicle
Moving gasoline in a personal car or truck is legal, as long as you use CARB-compliant containers and keep them sealed, upright, and secured so they can’t slide or tip.
Federal hazardous materials rules generally don’t reach private individuals carrying fuel for personal use in small approved cans. They apply to commercial carriers and larger quantities. Where the line sits depends on volume and purpose: a five-gallon can for your generator is personal use; regularly hauling fuel to resell crosses into commercial territory.
If you move fuel as part of a job, the federal Materials of Trade exemption under 49 CFR 173.6 lets you carry Class 3 flammable liquids like gasoline in packages of up to 8 gallons (30 liters), with the aggregate weight of all hazardous materials on the vehicle capped at 440 pounds. Go over those limits and you trigger full hazmat requirements, including shipping papers, placarding, and formal training.5Pipeline and Hazardous Materials Safety Administration. Understanding Materials of Trade
Legal limits aside, keep cans out of the passenger compartment when you can. Vapors in an enclosed space are a health and fire risk. A truck bed or an SUV cargo area with the windows cracked is far safer than a sealed trunk on a hot day.
Penalties for Breaking the Rules
Enforcement comes from two directions: CARB for emissions-related violations, and local fire departments for storage and safety problems.
On the CARB side, Health and Safety Code Section 43016 sets a civil penalty of up to $500 per non-compliant portable fuel container or spout.6Justia Law. California Health and Safety Code 43000-43023.5 CARB’s own enforcement data shows penalties reaching up to $632 per container, likely reflecting adjustments over time.7California Air Resources Board. 2014-2024 Enforcement Penalty Summary These penalties are aimed more at manufacturers and distributors than at individual consumers, but a business stocking non-compliant cans for resale faces the same exposure.
Serious air pollution violations fall under Health and Safety Code Section 42400, a misdemeanor carrying fines up to $5,000, up to six months in county jail, or both. Each day a violation continues counts as a separate offense.8California Legislative Information. California Health and Safety Code 42400 If a violation causes actual physical injury to a considerable number of people, the maximum fine rises to $15,000 and the jail term stretches to nine months.
Fire code penalties are set locally and vary. Storing gasoline improperly, using unapproved containers, or exceeding storage limits can bring a citation from the local fire marshal. A first violation usually draws a correction notice, but repeated problems or an immediate hazard can lead to fines and, in extreme cases, an order to vacate the property until the hazard is fixed.