The short answer: your out-of-state title, your out-of-state registration card, a completed REG 343, a REG 31 VIN verification, a smog certificate, proof of California insurance, photo ID, and payment for fees and use tax.
That list is on every website. It’s also the easy part.
What stalls people isn’t the list, it’s the order the documents have to happen in, and the four situations where the standard list doesn’t apply to them. Here’s the version that accounts for both.
First: when does your 20-day clock actually start?
Most articles say you have 20 days from the day you move. That’s not what the law says.
Vehicle Code §6700 gives you 20 days from establishing residency, and §12505 defines what establishes it. Any one of these starts the clock:
- Accepting employment in California
- Enrolling dependents in a California school
- Registering to vote in California
- Filing for a homeowner’s property tax exemption
- Paying resident tuition at a California college
So if you took a job offer six weeks before your furniture arrived, your window may already be closed. Check the date against these triggers before you assume you have time.
Separately, you have 10 days to get a California driver’s licence. Different deadline, different obligation. Don’t confuse them, and note that you can register the vehicle first. A California licence is not required to register a car here.
The standard document set
Document | Form | Where you get it |
— | You or your lienholder | |
— | You | |
REG 343 | Free from dmv.ca.gov | |
REG 31 | CHP, AAA, DMV, or licensed verifier | |
— | Licensed smog station | |
— | Your carrier | |
— | You | |
— | Public Weighmaster (commercial vehicles and pickups) |
The order matters more than the list
This is where the 20 days actually go. The documents have dependencies, and doing them out of sequence costs you trips.
1. California insurance first
You cannot register without it, and a policy from your old state doesn’t satisfy California requirements. Get this moving before anything else, it’s the step w
2. Smog check second
Your certificate is valid for 90 days. Getting it too early means it can expire before your paperwork is complete, so don’t do it the week you decide to move.
3. VIN verification third
A verifier physically inspects the vehicle and completes the REG 31. It’s free at a CHP office and free for AAA members at a branch; a DMV field office charges a small fee. Doing this before your smog check doesn’t save you anything, the two are separate appointments either way, and smog is the one that can fail and need a retest.
4. Complete the REG 343
With signatures from every registered owner. Missing a co-owner’s signature is one of the most common rejection reasons.
5. Submit everything together
Pay fees and use tax, surrender your out-of-state plates, and you’ll receive California plates, a registration card, and a sticker.
The mistake we see most often is people booking a DMV appointment first and gathering documents second. Book the appointment last, once smog and VIN verification are done.
Exception 1: your vehicle is financed and you don't have the title
This is the one nobody writes about, and it’s the most common reason a new-resident registration blows through 20 days.
If you have a loan on the vehicle, your lender holds the title. You can’t produce a document you don’t have, and out-of-state lenders are not fast about releasing one to another state’s DMV.
If you’re financed, start the lender request the day you decide to move, not the day you arrive. Ask your lender specifically what they need in order to send the title to the California DMV, some will send it directly, some will only release it to a DMV or authorised agent, and every lender’s process is different.
We handle these regularly, including chasing lienholders who’ve gone quiet. Our out-of-state vehicle registration service covers the title-release coordination as part of the filing.
Exception 2: the smog exemption you think you have probably doesn't apply
If you’re driving a newer car, you may assume you’re exempt. Be careful here.
The newer-vehicle exemption that lets California residents skip smog at renewal applies to renewals of an existing California registration. It does not automatically carry over to a nonresident vehicle being registered in California for the first time.
The out-of-state threshold is by model year and fuel type: gasoline vehicles from 1976 or newer, and diesels from 1998 or newer at 14,000 lbs GVWR or under, generally require a smog check for initial California registration. Battery-electric vehicles, motorcycles, and 1975-and-older gasoline vehicles are exempt.
Your DMV paperwork is the final word on whether your specific vehicle needs one. Read the notice rather than assuming.
Exception 3: some vehicles can't be registered in California at all
This one deserves a warning before you buy, not after.
A vehicle that isn’t certified to California emission standards, typically one under two model years old with fewer than 7,500 miles, can be refused registration outright.
Per the DMV’s registration procedures manual, that refusal is recorded against the vehicle record and cannot be reversed. The vehicle can never be registered here.
If you’re about to buy a new or nearly-new vehicle in another state and bring it to California, confirm California emissions certification before you sign anything. This is not a fixable problem afterwards.
Exception 4: use tax, and the 12-month rule that can save you thousands
Use tax is the biggest single line item on most new-resident registrations, and it’s the one where the rules genuinely help you.
Use tax is generally due on a vehicle purchased outside California and brought into the state within 365 days of the purchase date (Revenue & Taxation Code §6248).
But a vehicle you owned and used for more than 12 months before establishing California residency is generally exempt, and if you paid sales tax to another state, a credit may apply against what’s owed here.
If you bought your car two years ago and then moved, this is worth confirming carefully. If you bought it three months before relocating, budget for it. CDTFA Publication 52 sets out the exemptions and how to request a use tax clearance.
What it costs
California registration isn’t one number. It’s a stack: base registration, CHP fee, Vehicle License Fee based on vehicle value, Transportation Improvement Fee, county and district fees that vary by where you live, a title fee, and use tax at your local rate.
We’re deliberately not printing dollar figures here. The numbers circulating on other sites disagree with each other and go stale within a year. Use the DMV’s own registration fee calculator for your specific vehicle and address, it’s the only figure worth budgeting against.
If you miss the 20 days
Penalties begin on day 21, and there’s no grace period. They scale with your licence and weight fees, so a more valuable vehicle costs more to be late with.
Beyond the money: driving on expired out-of-state plates past your deadline is a traffic-stop risk, and unresolved registration issues can escalate to a suspension requiring full registration reinstatement.
Quick reference by situation
Your situation | Extra document needed |
Owned outright | Standard list only |
Financed | Title release from lienholder |
Leased | Leasing company signature on REG 343, or notarised power of attorney |
Gift or family transfer | Statement of Facts (REG 256) |
Commercial vehicle or pickup | Weight certificate; REG 4008 where applicable |
Salvage-branded title | Additional inspection and documentation |
Title lost or damaged | REG 227 — see fixing California title errors |
How we help
Most of this you can do yourself. Where a licensed partner earns its fee is the coordination, sequencing smog and VIN verification so nothing expires, chasing a lienholder title, and completing the filing without you booking a field-office appointment inside a tight window.
We’re a licensed and bonded California DMV partner in Ontario, and we work in English, Spanish, Punjabi, and Hindi.
Frequently Asked Questions
Does my spouse's job start my 20-day clock?
Accepting employment in California is a residency trigger under §12505. If your household has established residency, the vehicle registration deadline applies. Confirm your specific circumstances with the DMV.
Can I register my car before I get a California driver's licence?
Yes. A California licence isn’t required to register a vehicle, see our guide on registering a car without a California licence.
Where can I get a VIN verification?
Free at a CHP office, free for AAA members at a branch, or for a small fee at a DMV field office. Licensed private verifiers also offer it, usually at a higher cost.
Do I have to surrender my out-of-state plates?
Yes, at the time of registration.
What if I've lost the out-of-state title?
You’ll need a replacement from the issuing state before California can register the vehicle. Start that request early, it’s a separate state’s timeline, not California’s.
Can I do any of this online?
No. The VIN verification and document review have to happen in person for a first-time out-of-state registration. Our guide to California DMV digital services in 2026 covers what can and can’t be done remotely.
If your 20 days are already ticking and you’d rather not spend two of them in queues, contact LC Registration and we’ll take the filing from here.
