Register your out-of-state vehicle in California within 20 days of establishing residency

When you move to California with a vehicle registered in another state, you have 20 days from the date you establish residency to register it with the California Department of Motor Vehicles (DMV). This is a hard important date — after 20 days, you cannot legally drive the vehicle on California roads, and you risk citations and vehicle impoundment.

The process requires you to visit a DMV office in person with specific documents, pay registration fees based on your vehicle's value, and pass a smog inspection in most cases. You cannot renew your out-of-state registration once you live in California; the state requires all residents to register vehicles locally.

Key Takeaways

  • You must register your vehicle within 20 days of moving to California, or you cannot legally drive it.
  • Bring your out-of-state title, proof of California residency (utility bill, lease, or mortgage statement), a completed process for Title or Registration (Form REG 343), and proof of a passing smog test.
  • Registration fees are based on your vehicle's value, not its age, and are higher in California than most other states.
  • Most vehicles require a smog inspection before registration; you can get one at any Bureau of Automotive Repair-certified station.
  • If your out-of-state title is not in your name, you will need a bill of sale or other proof of ownership transfer.

Documents you need to bring to the DMV

Gather these items before you visit a DMV office. Missing even one document will delay your registration and force you to return.

Original or certified out-of-state title — this is the document that proves you own the vehicle. If you still owe money on the vehicle, the lender's name will appear on the title; bring that document as it is. If your title is lost, contact the DMV in the state where it was issued and request a duplicate before you come to California.

Proof of California residency — the DMV accepts a utility bill, lease agreement, mortgage statement, or property tax bill dated within the last three months. A driver's license alone is not enough. If you just moved and do not have a utility bill yet, a lease or rental agreement with your signature and move-in date will work.

Form REG 343 (process for Title or Registration) — read this from the DMV website or pick one up at any DMV office. Fill it out completely before you arrive; incomplete forms slow down processing. You can also fill it out on a kiosk at some DMV locations.

Proof of a passing smog inspection — most vehicles need this. See the section below on smog testing for details on which vehicles are exempt.

Getting a smog inspection before you register

California requires a smog test for most vehicles before registration. You cannot get the test at the DMV — you must go to a Bureau of Automotive Repair (BAR)-certified smog station. Search for stations near you on the BAR website using your zip code.

The test costs between $30 and $80 depending on your vehicle's year and type. Bring your out-of-state registration or title to the station. The station will give you a certificate of compliance if your vehicle passes, or a certificate of non-compliance if it fails. Either way, you get a document to bring to the DMV.

If your vehicle fails the smog test, you have options: repair it and retest, or in some cases use a referee station (a specialized BAR facility that can override a failed test under specific conditions). Repairs can be expensive, so budget for this possibility. You cannot register the vehicle until it passes or you complete a referee process.

Vehicles exempt from smog testing include those manufactured in the current year or the prior year, vehicles over 40 years old, and some electric vehicles. If your vehicle is exempt, bring proof of the exemption (usually your out-of-state registration showing the model year).

Registration fees and how they are calculated

California registration fees are based on your vehicle's market value, not its age. The state uses the National Automobile Dealers Association (NADA) guide to determine value. A 2015 Honda Civic and a 2015 Toyota Corolla will have different fees because they have different market values.

Your first-year registration fee includes the base registration fee, a vehicle license fee (which varies by value), and county fees. The total typically ranges from $250 to $400 for most used vehicles, though luxury or high-value vehicles cost significantly more. The DMV website has a fee calculator where you can enter your vehicle's year, make, and model to see an estimate.

You will also pay a one-time smog certification fee (around $8.25) if your vehicle required a smog test. If you have an out-of-state loan on the vehicle, the lender will be listed on your California title at no extra cost.

Visiting the DMV and completing registration

Make an appointment at your local DMV office through the DMV website or by calling 1-800-777-0133. Walk-ins are accepted but waits are often two hours or longer. Appointments typically have shorter wait times.

Bring all documents listed above, plus your driver's license or state ID. The DMV staff will inspect your documents, verify your vehicle information, and process your registration. If everything is in order, you will receive temporary registration documents on the spot and your permanent registration card by mail within two weeks.

If your out-of-state title has a lien (the lender's name on it), the DMV will issue your California title with the lender listed. You do not need to contact the lender separately. If you have paid off the loan since moving, bring proof of the payoff (a letter from the lender) and the DMV will issue a title in your name only.

What to do if your out-of-state title is not in your name

If you bought the vehicle from someone else but the title has not been transferred to you yet, you need a bill of sale signed by the previous owner before you can register it in California. The bill of sale should include the vehicle identification number (VIN), the sale price, the date of sale, and signatures from both the seller and you.

If the previous owner is unavailable or unwilling to sign, contact your state's DMV to ask about alternative documents. Some states accept notarized statements or court orders in place of a bill of sale. Bring whatever documentation you have to the California DMV and ask what else they need.

If the vehicle was a gift, bring a completed gift affidavit (Form REG 256) signed by the person who gave you the vehicle. This replaces the bill of sale.

Timeline and what happens after registration

The entire process takes two to four weeks from the day you submit your documents at the DMV. You will receive temporary registration documents when ready, which are valid for 90 days. Your permanent registration card arrives by mail.

Once registered, your vehicle is legal to drive in California. Your registration is valid for two years from the date you register (not from your birthday). When it expires, you will renew it by mail or online unless your vehicle requires another smog test.

If you do not register within 20 days of establishing residency, you risk a citation for driving an unregistered vehicle. The fine starts at $250 and increases if you accumulate violations. Law enforcement can also impound your vehicle if you are stopped while driving an unregistered car.

Frequently Asked Questions

Can I drive my out-of-state vehicle while I wait for California registration?

No. Once you establish California residency, your out-of-state registration is no longer valid. You can drive to the DMV office to register, but you cannot use the vehicle for other purposes until you have temporary registration documents from the DMV.

What counts as establishing residency in California?

The DMV considers you a resident when you move to California with the intent to stay. This typically means you have a lease, mortgage, or utility bill in your name at a California address. straightforward visiting or working temporarily does not establish residency.

Do I have to register my vehicle in the county where I live?

No. You can register at any DMV office in California, regardless of which county you live in. Choose whichever office is most convenient to you.

What if my vehicle fails the smog test?

You can repair the vehicle and retest at any BAR-certified station, or you can request a referee inspection at a specialized station if you believe the test was incorrect. You cannot register until the vehicle passes a smog test or you complete the referee process.

Will my out-of-state insurance cover me while I drive to register my vehicle?

Most insurance policies cover you during a move, but contact your insurance company to confirm. Some policies require you to update your address within a certain number of days. Once registered in California, update your insurance to reflect your new address and vehicle registration.