Are Gas Generators Banned in California? Rules Explained and a Battery Alternative for Backup Power

Power outages caused by severe weather, wildfire risk, or Public Safety Power Shutoffs can make backup electricity an important part of home preparedness in California. At the same time, changing emissions standards have created confusion about whether gas-powered generators are still allowed.

So, are gas generators banned in California? Not across the board. The answer depends on the type of generator, whether it is new or already owned, and the rules that apply when it is purchased or operated.

Quick Answer: Are Gas Generators Banned in California?

California does not have a blanket ban on gas generators. The rules mainly affect emissions standards for certain new portable generators, while existing equipment and different generator categories may follow different requirements.

For homeowners planning backup power, the key considerations are:

• Check generator type and regulations: New portable generators may need to meet CARB emission requirements, while existing generators are not automatically prohibited.
• Consider your backup needs: Choose a solution based on essential loads, required runtime, and available charging options.
• Explore battery alternatives: The Anker SOLIX S5000 provides a zero-emission backup option, and expandable storage for longer outages.

How California’s Gas Generator Rules Work

California regulates many small gasoline engines because of their air-pollutant emissions. Portable generators are included in this broader framework when their engines fall within the applicable SORE category.

AB 1346 and CARB’s Emission Rules

California Assembly Bill 1346 directed the California Air Resources Board (CARB) to adopt requirements for small off-road engines that move new equipment toward zero emissions where CARB determines that transition to be technologically feasible and cost-effective. CARB subsequently amended its SORE regulations.

The updated standards began with model year 2024, but portable generators received a longer transition period than most covered SORE categories. According to CARB’s Small Off-Road Engine implementation review, the requirements for portable generators change in stages rather than through an immediate zero-emission requirement.

AB 1346 therefore works through CARB’s equipment and engine emission standards rather than functioning as a simple statewide prohibition on generator use.

Which Generators Are Covered?

The SORE rules apply to specified spark-ignition engines rated at or below 19 kW, or roughly 25.5 horsepower, subject to regulatory exclusions. Many consumer portable gasoline generators fall into this category. CARB also states that small generators sold at retail must use engines certified for sale in California.

Larger portable equipment, diesel engines, and stationary or standby generators can fall under different regulatory programs. That means generator wattage alone is not enough to determine which rule applies. Engine type, power classification, whether the unit is portable or stationary, and its intended application may all matter.

What Changes for Gas Generators in 2028?

The model year 2028 requirement is one reason the regulations are often described online as a California gas generator ban. The actual rule is more specific and applies to emission standards for covered new portable-generator engines.

Zero-Emission Standards for New Equipment

Under CARB’s adopted SORE framework, portable generators follow a two-stage transition. Model years 2024 through 2027 are subject to tighter emission limits, while the standards for specified pollutants move to zero beginning with model year 2028. CARB’s rule making materials also call for a technological review to assess progress toward the MY2028 requirements.

For someone planning a future purchase, the relevant date is therefore the model year and the requirements applicable to new equipment entering the California market. As 2028 approaches, checking current CARB guidance and manufacturer certification information will be more reliable than relying on an older summary of the rule.

What the 2028 Rules Do Not Change

The MY2028 standards do not require owners to stop using a SORE generator they already own. CARB stated this explicitly in its final rule making materials. Those materials also distinguish stationary generators from the portable generators addressed by the SORE amendments.

In other words, MY2028 is a standard for covered new equipment, not an expiration date for generators already in use.

What the Rules Mean for Generator Owners and Buyers

The practical impact of the regulations differs depending on whether a household already has a generator or is looking for a new one.

Existing Gas Generators

CARB states that it does not establish in-use restrictions for certified small engines used in small retail generators. These generators are also generally exempt from air-district rules, although CARB advises owners to check with their local air district for any local usage limits or permit requirements.

Owners should continue to follow the manufacturer’s maintenance and operating instructions and check applicable local requirements where necessary. If the generator is eventually replaced, the new model should be evaluated under the emissions and sales requirements in effect at the time of purchase.

Buying a New Gas Generator

For a new purchase, check the specific generator rather than assuming that every model available elsewhere in the United States can also be sold in California.

CARB states that small off-road engines used in retail generators must be certified by CARB to be sold in the state. Manufacturer specifications and certification information can help confirm whether a particular model is intended for the California market.

Also avoid using output wattage as the only compliance indicator. Two generators with similar electrical output may use different engines or fall into different regulatory categories.

Online and Out-of-State Purchases

National online listings can make California eligibility less obvious. The fact that a retailer ships generators elsewhere in the United States does not by itself establish that every version offered is certified for California sale.

Buying a generator outside California should not automatically be treated as a way around California requirements either. Sale, importation, certification, and continued operation are separate regulatory issues.

A national listing or an out-of-state purchase should therefore not be used as evidence that a generator meets California requirements.

Using a Gas Generator During California Power Outages

Rules governing new equipment sales are only one part of generator ownership. During an outage, homeowners also need to consider emergency-use guidance, local requirements, and safe placement.

Emergency Backup and PSPS Events

California utilities may use Public Safety Power Shutoffs (PSPS) to de-energize power lines when conditions create elevated wildfire risk. CARB provides separate guidance for generator use during PSPS events based on the type and size of the equipment.

Its guidance on backup generators during Public Safety Power Shutoffs states that CARB does not establish in-use restrictions for certified small generators sold at retail. Larger engines can face additional air-district permitting or operating requirements.

A small residential portable generator may therefore face different requirements from a large commercial backup engine.

Local Rules and Safe Operation

State regulations do not cover every aspect of generator use. Depending on the equipment and location, local requirements may affect how a generator is installed or operated. Before use, consider the following:

• Check local rules: Air districts, fire authorities, or local codes may add permit or operating requirements.
• Operate outdoors: Never run a portable generator in a home, garage, basement, shed, or other enclosed space.
• Keep enough distance: The U.S. Consumer Product Safety Commission recommends at least 20 feet from homes and buildings, with exhaust directed away from openings.
• Follow the manual: Follow manufacturer guidance for refueling, wet weather, maintenance, and electrical connections.

Planning Home Backup Power in California

Once regulatory and safety requirements are clear, backup planning comes down to a different set of questions: what needs power, how much output those loads require, and how long they need to operate.

Identify Essential Power Needs

Start with appliances and devices that are important during an outage rather than trying to power the entire home automatically. Depending on the household, essential loads may include refrigeration, lighting, internet equipment, medical devices, pumps, or selected heating-system controls.

Check the running wattage of equipment expected to operate at the same time. Appliances with motors or compressors can also draw additional power briefly when starting, so startup demand should be considered when determining the required output.

This creates a more useful target than simply adding the rated wattage of every appliance in the home.

Plan for Outage Duration and Energy Supply

Output determines how many loads a backup system can support at once; available energy determines how long that support can continue.

With a gas generator, planning may include expected fuel consumption, safe fuel storage, refueling frequency, and access to additional fuel during an extended outage. Some loads may only need to run periodically, which can reduce unnecessary generator runtime.

Battery systems shift the calculation toward stored energy and recharging. Capacity, actual load, grid availability, solar conditions, and other compatible charging sources can all affect runtime.

These factors help determine how much backup capacity is practical and whether stored energy should also be part of the home power plan.

Anker SOLIX S5000: A Battery Alternative for California Home Backup Power

As California moves toward stricter emissions standards for small off-road engines, homeowners may consider battery-powered solutions as an alternative to traditional gas generators. Portable power stations provide stored energy without relying on fuel or combustion engines, offering a cleaner option for essential home backup needs.

The Anker SOLIX S5000 is designed for households seeking reliable backup power with a zero-emission, CARB SORE-compliant alternative to traditional gas generators. Without an internal combustion engine, the S5000 produces no engine emissions during operation and eliminates fuel-related operation, while providing expandable energy storage for essential household loads.

• 5,024Wh capacity: Provides stored energy for essential household loads such as refrigeration, lighting, internet equipment, and selected devices during an outage.
• 4.5kW output and up to 8kW peak output: Supports multiple compatible appliances, including equipment with higher startup power demands.
• Expandable up to 30kWh: Allows households to increase backup capacity for longer outages or greater energy needs.

For California homeowners preparing for future backup power needs, the S5000 offers a cleaner, quieter alternative to fuel-powered generators while supporting reliable home energy resilience.

Conclusion: California Gas Generator Rules at a Glance

So, are gas generators banned in California? Not broadly. California’s rules mainly affect emissions standards for certain new small off-road engines, while existing generators and other equipment categories may be treated differently.

Before buying or operating a generator, check its classification, current CARB requirements, and any applicable local rules. Backup planning should then be based on essential loads, expected outage duration, and available energy sources.

FAQs

Are battery power stations a replacement for gas generators in California?

Battery power stations can be an alternative for many home backup needs, especially for essential loads such as refrigerators, lights, internet equipment, and selected appliances. Unlike gas generators, systems like the Anker SOLIX S5000 operate without combustion engines, providing a zero-emission backup option.

Is the Anker SOLIX S5000 a zero-emission alternative to gas generators?

Yes. The Anker SOLIX S5000 uses battery storage instead of an internal combustion engine, meaning it produces no direct engine emissions during operation. This makes it a practical alternative for homeowners looking for cleaner backup power options in California.

Will gas generators be illegal in California in 2028?

Not as a blanket rule. CARB’s adopted SORE framework sets zero-emission standards for covered portable generators beginning with model year 2028. It does not make every existing gas generator illegal in 2028. CARB has also provided for technological review of progress toward these standards.

Do California generator rules apply to standby generators?

Not in the same way. CARB’s SORE regulations cover specified small off-road engines, including many portable generators, while stationary generators are outside these rules. Depending on their size and use, stationary or larger backup generators may instead be subject to other state or local air-quality requirements.

Can I bring a gas generator into California from another state?

Buying a generator outside California does not automatically make it eligible for import or sale in the state. California certification requirements can still apply. Before bringing in newly purchased equipment, check the exact model, its CARB certification status, and the current requirements rather than relying only on where it was purchased.