Moving to California from Texas: VIN Verification + 20-Day Checklist

The Austin-Bay Area corridor is the largest inbound tech-relocation pipeline in 2026. We see customers arrive every week from Houston, Dallas, San Antonio, and Austin — most of them on the clock for California’s 20-day rule. Here’s the exact day-by-day playbook for your first two weeks, sequenced to make the deadline without scrambling.

Days 1–2: Switch your insurance

Before anything else, switch the Texas auto policy to California-compliant insurance. Most national carriers (Geico, Progressive, State Farm, Allstate, USAA, Liberty Mutual, etc.) can do this same-day over the phone or app. California minimums are 15/30/5 (bodily injury per person / per accident / property damage). If your Texas policy already exceeds those numbers, the switch is just an address change and possible rate update.

Why first? You cannot register the vehicle in California without proof of California-compliant insurance. Doing this first removes a dependency from all the later steps.

Day 3: Request paper title if you have a Texas eTitle

Texas eTAG / eTitle holders need to request a paper title from TxDMV before final California title issuance. File the request online at txdmv.gov — takes 2–4 weeks. Run this in parallel with everything else.

If you have a paper Texas title already (older vehicle, or you bought a clean title at a Texas dealer that prints paper), skip this step. You can also start the California registration with a Texas registration card + TxDMV title-status printout while the paper title is in the mail.

Days 3–5: Schedule the California smog test

California requires a smog certificate for most gasoline-powered vehicles 1976+ and most diesel-powered vehicles 1998+, regardless of Texas exemptions. Use any California-licensed smog station — the certificate is valid for 90 days.

Smog gotcha for Texans: common Texas aftermarket modifications fail California smog. Specifically check that any non-stock parts have a CARB EO (Executive Order) number. Common Texas-scene mods that fail:

• Non-CARB cold-air intakes
• Performance exhausts without EO numbers
• ECU tunes (the most common failure)
• Deleted EGR or catalytic converter
• Aftermarket headers without CARB certification

If your Texas vehicle has any of these mods without CARB EO documentation, plan to remove/replace them before the smog test. Going in blind almost always means a return trip.

Days 4–7: Book the VIN verification

California requires a REG 31 VIN verification on every out-of-state vehicle. The DMV can do it free during your registration appointment, but Bay Area DMV appointments typically book 2–4 weeks out — usually too slow for the 20-day rule. Our mobile service costs $$180 flat within 45 minutes of Oakland (covers most Bay Area landing spots — SF, East Bay, Peninsula, parts of the South Bay) and runs same week. Our in-shop rate is $$85 at our Oakland location.

We come to your apartment, office, or storage facility. The verification takes 20–30 minutes on-site; we hand you the completed REG 31 ready to take to the DMV.

Day 7: Fill out REG 343

REG 343 is the California Application for Title or Registration — free PDF at dmv.ca.gov. You (the owner) fill it out: vehicle details, ownership info, lienholder info if any, address, intended use. Takes about 15 minutes. Different from REG 31 (which the verifier fills out about the actual vehicle).

Days 8–14: California DMV appointment

Book the DMV appointment as early as possible — they typically book 1–3 weeks out depending on the office. Bring the full registration packet:

• Texas title (or Texas registration card + TxDMV title-status printout if eTitle in transit)
• Completed REG 31 (from us)
• Completed REG 343
• California smog certificate
• Proof of California insurance
• Government-issued photo ID
• Out-of-state lienholder info (if applicable)

Plan for a half-day visit — even with an appointment, expect 1–2 hours of on-site time including wait. You’ll receive California temporary plates same-day; the permanent title arrives by mail in 8–12 weeks.

Done — and surrender your Texas plates

Drive on the California temporary plates. Mail your Texas plates back to TxDMV per their instructions (or destroy them — Texas requires you to surrender or destroy plates once you’re out of state). Update your insurance address to match the California registration.