What California's gas car ban actually is

California has set a rule that starting in 2035, new cars sold in the state must be zero-emission vehicles — meaning electric, hydrogen fuel cell, or plug-in hybrid models. This is not a ban on owning gas cars or driving them; it is a ban on selling new gas-only vehicles to consumers in California after that date. You can keep a gas car you already own, buy a used gas car, or drive through California in a gas car from another state.

The rule came from California's Air Resources Board (CARB), the state agency that sets vehicle emission standards. California has a special power under federal law: it can set its own vehicle pollution rules instead of following the federal Environmental Protection Agency (EPA) standards, as long as it gets a waiver from the EPA allowing it to do so.

That waiver is what "EPA waiver" means in this context. Without it, California would have to follow the same rules as every other state. With it, California can be stricter.

Key Takeaways

  • California's 2035 rule bans the sale of new gas-only cars in the state, but does not ban owning or driving gas cars you already have.
  • The EPA waiver lets California set its own emission rules instead of following federal standards, and California has used it to require zero-emission new vehicles by 2035.
  • The waiver has been granted multiple times in the past, most recently in 2022, but it can be challenged or revoked if the federal administration changes.
  • Other states can choose to follow California's rules instead of federal rules, and several have done so.
  • The rule affects car manufacturers and dealerships more directly than individual car owners, since it controls what new cars can be sold, not what you can drive.

Why California gets to set its own car rules

In 1970, Congress wrote the Clean Air Act and gave California an exception: because the state had severe smog problems before the federal law existed, California could ask for a waiver to set stricter pollution rules for cars than the EPA requires. The EPA can grant or deny the waiver, but it has almost always granted it when California asked.

This power exists because California's air quality problems were so bad that Congress thought the state needed room to act faster than federal rules allowed. Over the decades, California has used this waiver to require catalytic converters, lower tailpipe emissions, and now zero-emission vehicles — each time ahead of federal requirements.

The waiver is not permanent. It has to be renewed or reaffirmed, and it can be challenged. The Trump administration denied California's waiver request in 2020, but the Biden administration granted it again in 2022. Which administration is in power matters for whether the waiver stays in place.

What the 2035 zero-emission rule requires

Starting in 2035, 100 percent of new passenger cars and light trucks sold in California must produce zero tailpipe emissions. This includes battery electric vehicles (BEVs), hydrogen fuel cell vehicles, and plug-in hybrids (PHEVs) that can run on electricity alone for most daily driving.

The rule phases in gradually before 2035. By 2026, 22 percent of new cars sold in California must be zero-emission. By 2030, that number rises to 35 percent. By 2035, it reaches 100 percent. This gives manufacturers time to shift production and gives consumers time to see more electric options available.

The rule applies to what is sold in California, not what is manufactured there. A car made in Michigan can be sold in California only if it meets California's rules. This means manufacturers have to decide whether to make different versions of cars for different states or build all cars to California's standard, which many do because California is such a large market.

How other states use California's waiver

Once California gets an EPA waiver, other states can choose to follow California's rules instead of federal rules. This is called "adopting California standards." Currently, about 15 states have adopted California's zero-emission vehicle rule or similar rules, including New York, Massachusetts, Connecticut, and Vermont. These states are not setting their own rules; they are choosing to follow California's.

This means that if you live in one of these states, the same 2035 important date applies to new cars sold there. If you live in a state that has not adopted California standards, the federal EPA timeline applies instead, which is less strict and moves more slowly.

What happens if the EPA waiver is denied or revoked

If a future EPA administration denies or revokes California's waiver, California would have to follow federal emission rules instead of its own. This would likely delay or weaken the zero-emission requirement, because federal rules are less strict. States that adopted California standards would then have to decide whether to keep their own rules (which they can do independently) or switch to federal rules.

The waiver is not a one-time approval. It is reviewed and can be challenged. The Trump administration's 2020 denial was reversed by the Biden administration in 2022, showing that the waiver's status depends on which party controls the EPA. If you are making a long-term decision about buying an electric vehicle or planning for 2035, this political uncertainty is worth knowing about, though the rule itself has broad support in California and other adopting states.

What this means for car buyers right now

If you live in California or another state that has adopted California standards, the 2035 rule does not change what you can buy today. You can still buy a gas car in 2024, 2025, or any year before 2035. The rule only affects what dealerships can sell starting in 2035.

If you are thinking about buying a car in the next few years, you have the full range of options available now. If you are planning to buy a new car in 2035 or later in California, you will need to choose an electric, hydrogen, or plug-in hybrid model. Used gas cars will still exist and can be bought and sold after 2035; the ban is only on new sales.

The difference between California's rule and federal rules

The federal EPA has its own emission standards for new cars, which all states must follow unless they have adopted California standards. The federal timeline is slower: the EPA requires that by 2035, 50 percent of new cars sold nationwide be zero-emission, not 100 percent. This means gas-only cars can still be sold federally after 2035, just in smaller numbers.

California's rule is stricter and faster. It requires 100 percent zero-emission by 2035, with interim targets starting in 2026. States can choose which standard to follow, but they cannot be weaker than whichever one they pick. A state cannot adopt California standards and then weaken them.

Frequently Asked Questions

Can I still drive a gas car in California after 2035?

Yes. The rule bans selling new gas cars, not owning or driving them. You can keep a gas car you own, buy a used gas car, and drive a gas car through California. The ban only applies to new car sales at dealerships.

What if I live in a state that has not adopted California standards?

You follow federal EPA rules instead. The federal requirement is 50 percent zero-emission by 2035, not 100 percent, so gas cars can still be sold new in your state after 2035. Your state's rules depend on whether it chose to adopt California standards or stick with federal rules.

Can the EPA waiver be taken away?

Yes. The waiver can be denied or revoked by the EPA, and its status depends on the current federal administration. The Trump administration denied it in 2020, and the Biden administration granted it in 2022. Future administrations could change this decision again.

Do plug-in hybrids count as zero-emission under California's rule?

Plug-in hybrids (PHEVs) count if they can run on electricity alone for most daily driving. However, California is reviewing whether PHEVs should count toward the 100 percent requirement after 2035, so this may change. Check current CARB rules if you are considering a PHEV purchase near 2035.

What about used car sales after 2035?

Used car sales are not affected by the rule. You can buy and sell used gas cars in California after 2035 with no restrictions. The ban applies only to new cars sold by dealerships.